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Alicat Liquid Flow Meter Controller Manual

1. T 1 050 o e SP 4 667 oo 350 te CE 1 4 NPT bob 525 Both Sides 625 2 350 L 275 125 o 60 T T 925 e e 2X 8 32 UNC V 350 5 067 1 4 NPT SE Both Sides 4 000 3 250 750 E p175 T 1425 y 4X8 32 UNC V 4 46 L Series 0 2LPM oH 350 eoo 525 L Series 0 5LPM 0 10LPM 1 050 C oP 4 567 elo o o 350 1 8 NPT AUTOS Both Sides 525 3 578 F 2 225 1254 150 u O o 925 7 o 2X 8 32 UNC T 350 T e 1 600 o e a 91 i a gt Ho ly 1 4 NPT 800 4 Both Sides 62 7 650 ba 3 075 1757 B i Ia ja o 1 425 Ce 2 250 4X 8 32 UNC V 375 1 pe He 47 Po 350 525 LC Series 0 5CCM 0 10CCM 0
2. 0 0 2000 99 49 BACK RESET Select Menu From Select Menu you can interact MFG RS232 with your RS 232 RS 485 settings DATA COMM or read manufacturer s data Push MAIN to return to the Main display 18 MAIN This mode defaults on power up with flow as the primary displayed parameter The following parameters are displayed in PSIG C TARE Y 413 60 950 the Main mode Line Pressure Only on units eguipped with 0 0 0 0 CCM the optional pressure sensor pressing the PSIG button will move the line gauge pressure to the primary display ya Line Temperature Pressing the C button will move the process temperature to the primary display Pushing the button again allows you to select C Celsius K Kelvin F Fahrenheit or R Rankine for the temperature scale To select a temperature scale use the LN UP and LN DN buttons to position the arrow in front of the desired scale LN UP LN DN MODE gt E K Press SET to record your selection and a return to the MAIN display The selected temperature scale will be displayed on the screen Tare Pushing the TARE V button tares the flow meter and provides it with a reference point for zero flow This is an important step in obtaining accurate measurements It is best to zero the flow meter each time it is powered up If the flow reading varies significantly from zero after an initial tare give the unit a minute or so to warm up and re ze
3. 4 124 014 70 025 00 4 125 L Series Water Flow Meter Data Format For LC Series Flow Controllers there are four columns of data representing pressure temperature volume flow and set point The first column is line pressure normally in PSIG and only in units equipped with the optional pressure sensor the second column is temperature normally in C the third column is volume flow rate in the units specified at time of order and shown on the display and the fourth column is the set point also in the units specified at time of order and shown on the display For instance if the meter was ordered in units of CCM the display on the meter would read 2 004 CCM and the last two columns of the output below would represent volume flow and set point in CCM respectively 014 70 025 00 02 004 02 004 014 70 025 00 02 005 02 004 014 70 025 00 02 006 02 004 014 70 025 00 02 005 02 004 014 70 025 00 02 004 02 004 014 70 025 00 02 004 02 004 LC Series Water Flow Controller Data Format Note On units with the totalizer function a fourth column meters or fifth column controllers will show the totalizer value 36 Sending a Simple Script File to HyperTerminal It is sometimes desirable to capture data for an extended period of time Standard streaming mode information is useful for short term events however when capturing data for an extended period of time the amount of data and thus the file size can become
4. RS 232 Tx send RS 485 A receive RS 232 Rx receive RS 485 A send Check your device s calibration certificate and user manual for the actual electrical input output requirements as all instruments are custom configured to some extent Added to allow for full use of features on Alicat devices may not be present on host wiring NOTE Pins 1 4 5 6 and 9 are connected together inside of the device and are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory 63 DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15B eguipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization DB15B Pin Out Brooks Style Male Connector Front View Female Connector Front View Function Ground Primary Analog Signal Output N C N C Power Supply Vdc N C N C Analog Tare meters when grounded Analog Set Point Input controllers Power Supply Common Ground Secondary Analog Signal Output fixed 5 12Vdc RS 232 TX send or RS 485 Check your devi
5. Repeat step 1 to remove the unit from the streaming mode To assign the unit a new address type New Address e g B Care should be taken not to assign an address to a unit if more than one unit is on the RS 232 RS 485 line as all of the addresses will be reassigned Instead each should be individually attached to the RS 232 RS 485 line given an address and taken off After each unit has been given a unique address they can all be put back on the same line and polled individually 34 Collecting Data The RS 232 RS 485 output updates to the screen many times per second Very short term events can be captured simply by disconnecting there are two telephone symbol icons at the top of the HyperTerminal screen for disconnecting and connecting immediately after the event in guestion The scroll bar can be driven up to the event and all of the data associated with the event can be selected copied and pasted into Microsoft Excel or other spreadsheet program as described below For longer term data it is useful to capture the data in a text file With the desired data streaming to the screen select Capture Text from the Transfer Menu Type in the path and file name you wish to use Push the start button When the data collection period is complete simply select Capture Text from the Transfer Menu and select Stop from the sub menu that appears Data that is selected and copied either directly from Hyp
6. the set point above would be sent by typing D16000 followed by Enter To adjust the Proportional and Differential P amp D terms via RS 232 RS 485 LC and LCR Series only Type A followed by Enter to stop the streaming mode of information To adjust the P or proportional term of the PID controller type R21 followed by Enter The computer will respond by reading the current value for register 21 between 0 65535 It is good practice to write this value down so you can return to the factory settings if necessary Enter the value you wish to try by writing the new value to register 21 For example if you wished to try a P term of 220 you would type W21 220 followed by Enter where the bold number denotes the new value The computer will respond to the new value by confirming that 21 220 To see the effect of the change you may now poll the unit by typing A followed by Enter This does an instantaneous poll and returns the values once You may type A Enter as many times as you like Alternately you could resume streaming mode by typing followed by Enter Repeat step 3 to remove the unit from the streaming mode To adjust the D or proportional term of the PID controller type R22 followed by Enter The computer will respond by reading the current value for register 22 between 0 65535 It is good practice to write this value down so you can return to the 32
7. 1 4 NPT Female 20 0 5CCM to 50CCM 5 0 100CCM 4 6 H x 3 6 W x 1 1 D 1 8 NPT Female 5 0 200CCM to 500CCM 75 LCR Series 1LPM 4 0 2LPM 57Hx7 7 W x 2 3 D 1 4 NPT Female 4 0 5LPM 10 0 adapter fittings Units lt 1CCM F S are shipped with M5 10 32 Male Buna N O ring face seal to 1 8 Female NPT fittings These adaptor fittings were selected for customer convenience in process connection It should be noted that the 1 8 Female NPT introduces additional dead volume To minimize dead volume please see Accessories for the M5 10 32 Male to 1 8 OD compression fitting 1 Compatible with Beswick Swagelok tube Parker face seal push connect and compression 2 Lower Pressure Drops Available please contact info alicat com or 888 290 6060 44 L Series 2X 8 32 UNC V v aii 0 0 5CCM 1 050 cios e oP 4 397 als 60 336 336 pa m M5X0 8 6H 525 E Both Sides k 150 i 25 oo T 925 A 2X 8 32UNC V 175 L Series 0 2CCM s 0 5CCM 1 050 0 10CCM 0 20CCM 0 50CCM 0 100CCM 0 200CCM 0 500CCM gt 0 1LPM d 4 567 ae 350 a m 1 8 NPT 525 Both Sides 525 2 225 150 p 125 00 T T 925 45
8. 20CCM 0 50CCM 0 100CCM 0 200CCM 0 500CCM o al 500 S 1 125 LCR Series 0 1LPM 0 2LPM 0 5LPM Technical Data for PROFIBUS Meters Gauges and Controllers NOTICE The following specifications are applicable to Alicat PROFIBUS enabled meters gauges and controllers only All other operating specifications are shown in the Technical Data page for standard Alicat instruments All standard device features and functions are available and operate in accordance with the standard Alicat Scientific device operating manual provided with the device Meter or Small Valve Large Valve Spa Gauge Controller Controller Description Input Output Signal Digital PROFIBUS DP Electrical Connections DB9 Supply Voltage 7 to 30 Vdc 12 to 30 Vdc 24 to 30 Vdc 80mA 12Vdc 295mA 12Vdc Supply Current mA 24Vdc 280mA 24vdc 780mA 24Vdc Power and Signal Connections TOP SIDE Connect to the device using two DB9 51000001 1 5 connectors 210000 56 n s 1 NC 1 NC The female top connection is PROFIBUS 2 OPT GND 2 R J32RX The male connection on the side is power and n A open RS 232 or RS 485 5 DGD 5 GND Pin out diagrams for all PROFIBUS enabled an e p NG i 5 E o 7to Alicat devices are shown 8 D GND 9 NC 9 NC 1 8 NPT Both Sides i GO el I 525 1 05 _ 2x 8 32 UNC Y 350 3
9. DB15 Pin Out Alicat Style 00000000 9000Q0Q Male Connector Front View Female Connector Front View Ground Primary Analog Signal Output Ground N C Power Supply Vdc N C N C Analog Tare meters when grounded Analog Set Point Input controllers Power Supply Common Ground Secondary Analog Signal Output fixed 5 12Vdc N C Check your device s calibration certificate and user manual for the actual electrical input output reguirements as all instruments are custom configured to some extent NOTE Pins 1 3 9 10 and 14 are connected together inside of the device and are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory 62 DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15A eguipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization DB15A Pin Out Aalborg Style Ground Primary Analog Signal Output Analog Tare meters when grounded Analog Set Point Input controllers Ground Power Supply Common Power Supply Vdc
10. Main mode Line Pressure Only on units equipped with 0 0 0 0 CCM the optional pressure sensor pressing the PSIG button will move the line gauge pressure to the primary display ya Line Temperature Pressing the C button will move the process temperature to the primary display Set Point The set point SETPT is shown in the upper right of the display For information on changing the set point see SETPT SOURCE page 27 Volume The volume flow rate is defaulted on the primary display Press the unit of measure button cem in the example above to return the volume flow rate to the primary display MENU Pressing MENU switches the screen to the Select Menu display overrange POV pressure overrange TOV temperature overrange Flashing Error Message An error message VOV volumetric A flashes when a measured parameter exceeds the range of the sensor When any item flashes neither the flashing parameter nor the flow measurement is accurate Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy If the unit does return to normal operation contact Alicat 25 SELECT MENU From Select Menu you can change the selected gas interact with your RS 232 RS 485 settings read manufacturer s data and access the control setup screen Press the button next to the desired operation to bring that function to the screen MODEL INFO ALICAT SCI
11. as a source for the set point signal For 6 Pin Locking Connector DB9 DB15 and PROFIBUS Pin outs see pages 59 to 67 It is common to mistake Pin 2 labeled 5 12 Vdc Output as the standard 0 5 Vdc 12 INPUT SIGNALS Analog Input Signal Apply analog input to Pin 4 as shown on page 12 For 6 Pin Locking Connector DB9 DB15 and PROFIBUS Pin outs see pages 58 to 65 Standard 0 5 Vdc is the standard analog input signal Apply the 0 5 Vdc input signal to pin 4 with common ground on pin 8 Optional 0 10 Vdc If specified at time of order a 0 10 Vdc input signal can be applied to pin 4 with common ground on pin 8 Optional 4 20 mA If specified at time of order a 4 20 mA input signal can be applied to pin 4 with common ground on pin 8 NOTE This is a current sinking device The receiving circuit is essentially a 250 ohm resistor to ground NOTE 4 20mA output requires at least 15 Vdc power input SYSTEMS AS THIS WILL DESTROY PORTIONS OF THE CIRCUITRY AND VOID f CAUTION DO NOT CONNECT THIS DEVICE TO LOOP POWERED THE WARRANTY IF YOU MUST INTERFACE WITH EXISTING LOOP POWERED SYSTEMS ALWAYS USE A SIGNAL ISOLATOR AND A SEPARATE POWER SUPPLY 50 KOhm Potentiometer Controllers A simple method for providing set point to controllers 13 RS 232 RS 485 Digital Input Signal To use the RS 232 or RS 485 input signal connect the RS 232 RS 485 Output Signal Pin 5 the RS 232 RS 485 Input Signal Pin 3 and Grou
12. as any pulsing or fluctuation in water pressure will hydraulically couple to the differential pressure sensor and the resultant flow reading will jump analogously gt Please note that depending on model and flow range water flow meters have an inherent internal pressure drop higher than that of standard gas flow meters of similar flow range The minimum water device pressure drop is 2 PSIG going all the way to 20 PSIG drop in certain models Your source input pressure must meet or exceed this specification in addition to any back pressure you may have on the downstream end of your process Please see page 43 of the manual or check our online specifications chart for model specific details http www alicatscientific com documents specifications LiquidFlowMeterController pdf Please contact Alicat if you have any questions We will be happy to help email info alicatscientific com tel 520 290 6060 or 888 290 6060 Thank you for purchasing an L Series Water Flow Meter or LC or LCR Water Flow Controller Please take the time to find and read the information contained in this manual This will help to ensure that you get the best possible service from your instrument This manual covers the following Alicat Scientific instruments L Series Water Flow Meters LC Series Water Flow Controllers LCR Series Water Flow Controllers LB Series Portable Water Meters Note All Alicat Portable Water Meters operate in accordance with the in
13. factory with a generic tuning designed to handle most applications If you encounter issues with valve stability oscillation or speed fine tuning these parameters may resolve the problem Alicat controllers allow you to adjust the Proportional Integral and Differential terms of the PID control loop To change the PID loop parameters push the button below PID Press LOOP TYPE Then use the LN UP and LN DN buttons to select the appropriate PID control algorithm Press SET See the following page for descriptions of the PID Loop Types PID Control Algorithms P refers to the Proportional term of the PID loop I refers to the Integral term of the PID loop D refers to the Differential term of the PID loop Press P or D Then use SELECT to choose the decimal with the arrow and the UP and DOWN buttons to change the value Press SET to record your value Press CLEAR to return to zero Before changing the P I or D gt parameter please record the initial value so that it can be returned to the factory setting if necessary Valve tuning can be complex If you would like assistance please contact Alicat for technical support 29 The PID algorithm is an industry standard PID algorithm It is divided into three segments The first compares the process value to the set point to generate a proportional error The proportional error is multiplied by the P gain with the result added to the output drive register The sec
14. use the power jack A 2 1mm positive center 7 30 Vdc AC DC adapter rated for at least 100 mA is reguired to use the adapter jack in a L Series meter A 2 1mm positive center 12 30 Vdc AC DC adapter rated for at least 250 mA is reguired to use the adapter jack in a LC Series controller A 2 1mm positive center 24 30 Vdc AC DC adapter rated for at least 500 mA is reguired to use the adapter jack in a LCR Series controller NOTE 4 20mA analog output requires at least 15 Vdc fee N o l OO Standard 8 Pin Mini DIN Pin Out cable color Inactive or 4 20mA Primary Output Signal Black Static 5 12 Vdc or Secondary Analog Output 4 20mA 5Vdc 10Vdc or Basic Alarm 3 RS 232 Input Signal E Red Analog Input Signal Yellow Green Blue Brown RS 232 Output Signal Yellow 6 0 5 Vdc or 0 10 Vdc Output Signal Green Power In as described above 8 Ground common for power communications and signals Note The above pin out is applicable to all flow meters and controllers with the Mini DIN connector The availability of different output signals depends on the options ordered Underlined Items in the above table are optional configurations that are noted on the unit s calibration sheet CAUTION Do NOT CONNECT POWER TO PINS 1 THROUGH 6 AS PERMANENT DAMAGE CAN OCCUR analog output signal In fact Pin 2 is normally a constant 5 12 Vdc that reflects the system bus voltage and can be used
15. 5 MC 1SLPM PROFIBUS PROFIBUS MC1SLPM shown to provide PROFIBUS connector dimensions only Flow body and valve dimensions will vary with range Please see Alicat s device specifications for complete dimensions PROFIBUS units do not have a display screen 48 Information for Alicat DeviceNet Compatible Instruments DeviceNet OVERVIEW Alicat DeviceNet compatible instruments support the Predefined Master Slave Connection Set There are two connectors on the Alicat meter controller The DeviceNet standard M12 Micro Connector found on the top of the unit is reguired for DeviceNet operations The other connector is a DB9 on the side of the unit provided for convenience and is not necessary for operation of the DeviceNet compatible Alicat meter controller The DB9 connector can be used for RS 232 communication see DB9 pin out as shown Below DeviceNet CONNECTION Utilizing the standard DeviceNet M12 micro connector allows the Alicat meter controller to be easily attached to a DeviceNet network The pin out as defined in Volume Three of the DeviceNet Standard applies and is repeated here PN __ Descrintion Wire Color gt rain Re 7 2 veras V GND BLACK CAN H WHITE MAC ID All devices on a DeviceNet must have unique MAC ID Alicat units can either be programmed with a customer reguested ID or they will be defau
16. Control Valve Inlet Connection Port LCR Water Flow Controller shown with the standard downstream valve and connection port fittings MOUNTING All L Series Meters and LC Series Controllers have mounting holes for convenient mounting to flat panels The sizes and dimensions for the mounting holes are shown on pages 44 47 Meters are position insensitive and can be mounted in any orientation Small valve controllers LC Series can usually be mounted in any position Large valve controllers LCR Series should be mounted so that the valve cylinder is vertical Mounting a large valve controller in another position increases the risk of leakage when the controller is being held closed by the spring force Note For applications that may continuously introduce occasional air bubbles to the flow stream upstream of the device the device may be mounted upside down to prevent the bubbles from becoming trapped in the differential pressure sensor ports If the device has been installed upside down avoid using the bleed screws as water may leak into the electronics housing causing permanent damage that is not covered under warranty PLUMBING Your controller is shipped with plastic plugs fitted in the port openings To lessen the chance of contaminating the flow stream do not remove these plugs until you are ready to install the device Make sure that the water will flow in the direction indicated by the flow arrow Standard L Series Me
17. D TIME The small numbers below the mass total show the elapsed time since the last reset in hours minutes and seconds The maximum measurable elapsed time is 6553 5 hours about nine months The hours count resets when RESET is pushed an RS 232 or RS 485 clear is executed or on loss of power Press ELAPSED TIME to show this as the primary display RESET The counter can be reset to zero at any time by pushing the RESET button To clear the counter via RS 232 or RS 485 establish serial communication with the meter or controller as described in the RS 232 or RS 485 section of the manual To reset the counter enter the following commands In Streaming Mode SST lt Enter gt In Polling addressable Mode AddressSST lt Enter gt e g BSST lt Enter gt 52 Alicat Portable Meters and Gauges Alicat Portable Flow Meters and Gauges use a common 9 Volt battery located in the top section of your meter Output signals from the flow meter are passed through the female connector on top of the flow meter Turn the switch on top of the flow meter off when the meter is not in use Normal 9V alkaline battery life is approximately 8 hours 30 40 hours with a 9V lithium battery however many factors can affect this Note Alicat recommends the use of non rechargeable 9V lithium batteries in all MB TFT color display portable meters and gauges Replace the battery as often as reguired A yellow LED indicates low voltage and that the ba
18. ENTIFIC Ph 520 290 6060 Fax 520 290 0109 PRESS FLOW AUG u ID AVG LCD BACK CONTRAST MAIN Communication Select Miscellaneous MFG RS232 DATA COMM PSIG SE SETPT Select Menu 13 60 2159 4 000 CCM u 288 CCM GAS CONTROL SELECT SETUP SETPT SOURCE Control Setup An explanation for each screen can be found on the following pages Control Setup Please see page 27 Communication Select Please see page 21 Miscellaneous Please see page 22 Manufacturer Data Please see page 23 26 CONTROL SETUP Control Setup is accessed by pressing the button below Control Setup on the Select Menu display From this screen you can select your set point source choose a loop variable and adjust the PID terms Press BACK to return to the Select Menu display Press MAIN to return to the MAIN display SETPT LOOP SETPT SETPT SOURCE Pressing the button SOURCE VAR 88 above SETPT SOURCE will allow you to select how the set point will be conveyed to your controller Use the line up and line down buttons to move the arrow in front of the desired option Then press SET Press CANCEL to return to the previous display The controller will ignore any set point except that of the selected set point source and it will remember which input is selected even if the power is disconnected RS 232 or RS 485 refers to a remote digital RS 232 RS 485 set point applied vi
19. IT ID ID the device will enter streaming mode E when Communication Select is exited See RS 232 Communications page 31 for E information about the streaming mode Baud Both this instrument and your computer must send receive data at the BACK PESETA same baud rate The default baud rate for this device is 19200 baud Press the Select button until the arrow is in front of Baud Use the UP and DOWN buttons to select the baud rate that matches your computer The choices are 38400 19200 9600 or 2400 baud Any baud rate change will not take effect until power to the unit is cycled 21 MISCELLANEOUS Miscellaneous is accessed by pressing the MISC button on the Select Menu display NOTE All Miscellaneous changes are recorded when you exit Miscellaneous ZERO BAND refers to Display Zero Deadband Zero deadband is a value below which the display jumps to zero This deadband is often desired to prevent electrical noise from showing up on the display as minor flows or pressures that do not exist Display Zero Deadband does not affect the analog or digital signal outputs ZERO BAND can be adjusted between 0 and 3 2 of the sensor s Full Scale FS EEE AT Press ZERO BAND Then use SELECT to BAND ANG AVG choose the decimal with the arrow and the UP and DOWN buttons to change the value Press SET to record your value Press CLEAR to return to zero LCD Pressure Averaging and Flow Averaging BACK CONTRAST MAIN may be useful to m
20. ND VOID THE WARRANTY IF YOU MUST INTERFACE WITH EXISTING LOOP POWERED SYSTEMS ALWAYS USE A SIGNAL ISOLATOR AND A SEPARATE POWER SUPPLY f CAUTION DO NOT CONNECT THIS DEVICE TO LOOP POWERED Purple Ground ee ave 0 e O E Female Serial Cable Front Typical Multiple Device Addressable Wiring Configuration gt The easiest way to connect multiple devices is with a Multi Drop Box see page 55 16 Information for Alicat TFT Color Display Instruments Alicat TFT color display instruments have a high contrast back lit LCD display TFT instruments operate in accordance with Alicat standard operating instructions for our monochrome menus and displays with the following differences Multi Color Display Color Codes GREEN Green labels identify the parameters and or adjustments associated with the button directly above or below the label WHITE The color of each parameter is displayed in white while operating under normal conditions RED The color of a parameter is displayed in red when operating conditions for that parameter exceed 128 of the devices specifications YELLOW Yellow is the eguivalent of the selection arrow on the monochrome display LCD Contrast LCD contrast is ranged from 1 to 11 on color displays with 11 being the greatest contrast Display On Off Pushing the button under the Alicat name will turn the device display on or off This feature is not available on monochrome displa
21. PLE All L or LC Series Water Flow Meters Controllers accurately determine the flow rate by creating a pressure drop across a unique internal restriction known as a Laminar Flow Element LFE and measuring differential pressure across it The restriction is designed so that the water molecules are forced to move in parallel paths along the entire length of the passage hence laminar streamline flow is established for the entire range of operation of the device Unlike other flow measuring devices in laminar flow meters the relationship between pressure drop and flow is linear The underlying principle of operation of the 16 Series Flow Meters is known as the Poiseuille Equation Q P P nr4 8nL Equation 1 Where Q Volumetric Flow Rate P Static pressure at the inlet P Static pressure at the outlet r Radius of the restriction n eta absolute viscosity of the fluid L Length of the restriction Since p r and L are constant Equation 1 can be rewritten as Q K AP n Equation 2 Where Kis a constant factor determined by the geometry of the restriction Eguation 2 shows the linear relationship between volumetric flow rate A differential pressure DP and absolute viscosity h in a simpler form In order to have an accurate reading of the flow rate the absolute viscosity of the fluid must be established The rate at which liguids change viscosity with changes in temperature is not linear The relationship between tempe
22. X approved devices It is also available as an option on all other Alicat instruments Pin Function Cable Color 1 Power In Red 2 RS 232TX RS 485 Blue 3 RS 232RX RS 485 White 4 Remote Tare Meters Ground to Tare Green 5 Analog Set Point Input Controllers Ground common for power Black communications and signals Signal Out Voltage or Current as Brown ordered Six pin Industrial Connector Note The above pin out is applicable to all the flow meters and controllers ordered with the industrial connector The availability of different output signals depends on the flow meter options ordered 59 DB9 Pin Outs If your Alicat instrument was ordered with a DB9 connection please reference the following pin out diagram OOA O 00000 Standard DB9 Pin Out Female Connector Inactive or optional 4 20mA Primary Output Signal Static 5 12 Vdc or Secondary Analog Output 4 20mA 5Vdc 10Vdc or Basic Alarm 3 Serial RS 232RX or RS 485 Pin 1 3 Analog Input Signal 4 20mA 5Vdc or 10Vdc short to ground 5 6 7 8 9 for remote tare function on non controllers 5 Serial RS 232TX or RS 485 0 10 Vdc Output Signal 7 Note The above pin out is applicable to all flow meters and controllers with the DB9 connector The availability of different output signals depends on the options ordered Underlined Items in the a
23. a a serial connection to a computer or LN UP LN DN PLC as described in the installation and A e RS 232 RS 485 sections of this manual 5 Front Panel refers to a set point applied directly at the controller Front Panel input must be selected prior to changing the set point at the device CANCEL Analog refers to a remote analog set point applied to Pin 4 of the Mini DIN connector as described in the installation section of this manual The standard analog input is 0 5 Vdc To determine what type of analog set point your controller has refer to the Calibration Data Sheet that was included with your controller If nothing is connected to Pin 4 and the controller is set for analog control the set point will float NOTE If your controller has the IPC Integrated Potentiometer Control option the IPC dial will operate with the ANALOG set point source selected SETPT refers to the set point This parameter may be changed using the display only if FRONT PANEL is selected as the Input Press SETPT Then use SELECT to choose the decimal with the arrow and the UP and DOWN buttons to change the value Press SET to record your value Press CLEAR to return to zero 27 CAUTION NEVER LEAVE A CONTROLLER WITH A NON ZERO SET POINT IF NO PRESSURE IS AVAILABLE TO MAKE FLOW THE CONTROLLER WILL APPLY FULL POWER TO THE VALVE IN AN ATTEMPT TO REACH THE SET POINT WHEN THERE IS NO FLOW THIS CAN MAKE THE VALVE VERY HOT CONTROL SETUP
24. aALIGAT SCIENTIFIC Operating Manual EJE SCIENTIFIC ses m LC Series L Series 3 LCR Series Precision Water Flow Meter Precision Water Flow Controller Innovative Flow and Pressure Solutions C NS Notice Alicat Scientific Inc reserves the right to make any changes and improvements to the products described in this manual at any time and without notice This manual is copyrighted This document may not in whole or in part be copied reproduced translated or converted to any electronic medium or machine readable form for commercial purposes without prior written consent from the copyright holder Note Although we provide assistance on Alicat Scientific products both personally and through our literature it is the complete responsibility of the user to determine the suitability of any product to their application Alicat Scientific Inc s Wide Range Laminar Flow Element Patent The wide range laminar flow element and products using the wide range laminar flow element are covered by U S Patent Number 5 511 416 Manufacture or use of the wide range laminar flow element in products other than Alicat Scientific products or other products licensed under said patent will be deemed an infringement Limited Lifetime Warranty Alicat Scientific Inc warrants to the original purchaser hereinafter referred to as Buyer that instruments manufactured by Alicat Scientific hereinafter referred to as Pro
25. aging and Flow Averaging on page 22 42 Jumps to zero at low flow L Series Meters and LC Series Controllers feature a programmable zero deadband The factory setting is usually 0 5 of full scale This can be adjusted between NONE and 3 2 of full scale See page 22 MAINTENANCE AND RECALIBRATION General L and LC Series Water Flow Meters and Controllers reguire minimal maintenance The primary cause of damage and or long term inaccuracy in these devices is contamination and or corrosion damage Water should be filtered for particulates or biological materials that may grow in the device When removing these units from the line for any extended period of time make an effort to remove all of the water from the device as deposits of calcium or other soluble minerals can affect the accuracy of the device Recalibration The recommended period for recalibration is once every year A label located on the back of the device lists the most recent calibration date The device should be returned to the factory for recalibration within one year from the listed date Before calling to schedule a recalibration please note the serial number on the back of the meter The Serial Number Model Number and Date of Manufacture are also available on the Model Info screen page 23 Cleaning L and LC Series Flow Meters Controllers reguire no periodic cleaning If necessary the outside of the meter can be cleaned with a soft dry cloth Avoid exces
26. ake it easier to read and interpret rapidly fluctuating pressures and flows Pressure and flow averaging can be adjusted between 1 no averaging and 256 maximum averaging These are geometric running averages where the number between 1 and 256 can be considered DOWN SELECT roughly equivalent to the response time constant in milliseconds This can be effective at smoothing high frequency H A process oscillations such as those caused by diaphragm pumps Press PRESS AVG Then use SELECT to CANCEL CLEAR choose the decimal with the arrow and the UP and DOWN buttons to change the value Press FLOW AVG Then use SELECT to choose the decimal with the arrow and the UP and DOWN buttons to change the value Press SET to record your value Press CLEAR to return to zero Setting a higher number will equal a smoother display LCD CONTRAST The display contrast can be adjusted between 0 and 30 with zero being the lightest and 30 being the darkest CANCEL RESET Use the UP and DOWN buttons to adjust the contrast Press SET when you are satisfied Press CANCEL to return to the MISC display 22 MANUFACTURER DATA Manufacturer Data is accessed by pressing the MFG DATA button on the Select Menu display MODEL The initial display shows the name INFO and telephone number of the ALICAT SCIENTIFIC manufacturer Ph 520 290 6060 Press MODEL INFO to show important Fax 520 290 0109 information about your flow meter including the model num
27. ale flow The output voltage is linear over the entire range Ground for this signal is common on Pin 8 Optional Current 4 20 mA Output Signal If your meter controller was ordered with a 4 20 mA current output signal it will be available on Pin 1 See the Calibration Data Sheet that shipped with your meter to determine which output signals were ordered The current signal is 4 mA at 0 flow and 20 mA at the meter s full scale flow The output current is linear over the entire range Ground for this signal is common on Pin 8 Current output units require 15 30Vdc power Optional 2nd Analog Output Signal You may specify an optional 2nd analog output on Pin 2 at time of order See the Calibration Data Sheet that shipped with your meter to determine which output signals were ordered This output may be a 0 5 Vdc 0 10 Vdc or 4 20 mA analog signal that can represent any measured parameter With this optional output a meter could output the volume flow rate 0 5 Vdc on pin 6 and the line temperature 0 5 Vdc on pin 2 If your device is equipped with the optional six pin industrial connector please contact Alicat SYSTEMS AS THIS WILL DESTROY PORTIONS OF THE CIRCUITRY AND VOID THE WARRANTY IF YOU MUST INTERFACE WITH EXISTING LOOP POWERED SYSTEMS ALWAYS USE A SIGNAL ISOLATOR AND A SEPARATE POWER SUPPLY f CAUTION DO NOT CONNECT THIS DEVICE TO LOOP POWERED 15 SYSTEMS AS THIS WILL DESTROY PORTIONS OF THE CIRCUITRY A
28. are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory Added to allow for full use of features on Alicat devices may not be present on host wiring 65 DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15H equipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization DB15H Pin Out Hastings H Style Male Connector Front View Female Connector Front View N C RS 232 RX receive or RS 485 N C N C Ground Primary Analog Signal Output Power Supply Common N C C Analog Tare meters when grounded Analog Set Point Input controllers RS 232 TX send or RS 485 Check your device s calibration certificate and user manual for the actual electrical input output reguirements as all instruments are custom configured to some extent NOTE Pins 5 7 and 12 are connected together inside of the device and are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory Added to allow for full u
29. as follows A small amount of water will leak from the device during this gt procedure Take necessary precautions to prevent the leaking water from damaging anything around the unit taking special care to avoid any live electrical devices or lines 1 With the meter controller installed and line pressure applied gently loosen the upstream bleed port screw 1 2 turns or until water begins to leak from the threads DO NOT REMOVE THE SCREW as the port is subject to line pressures and injury equipment damage or loss of required parts may result 2 Gently tap the flow body a wooden or plastic screwdriver handle works well for this to encourage air bubbles to exit the port 3 Any air in the port will generally be removed as the water leaks out even though you may not see or hear it 4 Gently tighten the screw until the leakage stops taking care not to crush the nylon tip Repeat steps 1 4 with the second bleed port 8 32 Nylon Tipped Bleed Screw 5 64 Hex Loosen to Bleed DO NOT REMOVE If your device is mounted in an inverted position avoid using the gt bleed screws as water may leak into the electronics housing causing permanent damage that is not covered under warranty 11 POWER AND SIGNAL CONNECTIONS Power can be supplied to your meter controller through either the power jack or the 8 pin Mini DIN connector An AC to DC adapter which converts line AC power to DC voltage and current as specified below is reguired to
30. at or near the factory setting because it relates primarily to the system phase lags If you are changing from the default algorithm to the PD2I algorithm you should start with a D gain value of 20 3 The I gain is used to control the rate at which the process converges to the set point after the initial step change Too low a value for I gain shows up as a process value that jumps to near the set point and then takes awhile to converge the rest of the way Too high a value for I gain results in oscillation A good starting value for the I gain is 200 30 RS 232 RS 485 Output and Input Configuring HyperTerminal 1 Open your HyperTerminal RS 232 RS 485 terminal program installed under the Accessories menu on all Microsoft Windows operating systems 2 Select Properties from the file menu 3 Click on the Configure button under the Connect To tab Be sure the program is set for 19 200 baud or matches the baud rate selected in the RS 232 RS 485 communications menu on the meter and an 8 N 1 None 8 Data Bits No Parity 1 Stop Bit and no Flow Control protocol 4 Under the Settings tab make sure the Terminal Emulation is set to ANSI or Auto Detect 5 Click on the ASCII Setup button and be sure the Send Line Ends with Line Feeds box is not checked and the Echo Typed Characters Locally box and the Append Line Feeds to Incoming Lines boxes are ch
31. ber serial number and date of manufacture Press BACK to return to the MFG DATA display Push MAIN to return to the Main display MODEL L I4CCH D SERIAL NO 80443 DATE MFG 1472012 DATE CAL 10 7972012 CAL BY DL SW REY 2462 23 DISPLAYS AND MENUS LC AND LCR CONTROLLERS Displays and Menus for L Meters are shown beginning page 18 The device screen defaults to Main display as soon as power is applied to the controller 13 68 21 59 0 000 ELAPSED TI 0 0 0000 99 04 BACK RESET MISC MFG R5232 DATA COMM CONTROL SETUP MAIN The Main display shows temperature and volume flow Line pressure will be also be displayed if the meter was order with this option Pressing the button adjacent to a parameter will make that parameter the primary display unit By hitting the MENU button at the bottom right of the screen you will enter the Select Menu display If your controller was ordered with the Totalizer option page 51 pushing the MENU button once will bring up the Totalizing Mode display Pushing MENU a second time will bring up the Select Menu display Select Menu From Select Menu you can interact with your RS 232 RS 485 settings read manufacturer s data or access the control set up display Push MAIN to return to the Main display 24 This mode defaults on power up with flow as the primary displayed parameter The following parameters are displayed in 413 60 950 f the
32. bove table are optional configurations that are noted on the unit s calibration sheet Do not connect RS 485 to RS 232 units Check part number or contact factory to verify RS 485 functionality Due to variance in cable manufacturing please identify proper wiring pins via continuity check amp color when using bare cut multi strand cables 60 Power and Signal Connections Connect to the device using two DB9 connectors The female top connection is PROFIBUS PROFIBUS Pin Outs If your Alicat Instrument was ordered with a PROFIBUS connection please be sure to reference the following pin out diagram The male connection on the side is power and RS 232 or RS 485 Pin out diagrams for all PROFIBUS enabled Alicat devices are shown below CRESS SENDAREN TOP NG OPT GND DP RTS DGD VP OPT 7 to 30VDC DN NC SIDE llo oo o e 5 61 o o o o J9 Sere arte YS NC RS232RX RS232TX NC GND NC 7 to 30VDC GND NC DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15 eguipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization
33. ce s calibration certificate and user manual for the actual electrical input output reguirements as all instruments are custom configured to some extent NOTE Pins 1 9 and 10 are connected together inside of the device and are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory 64 DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15K eguipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization DB15K Pin Out MKS Style 00000000 Male Connector Front View Female Connector Front View N C Primary Analog Signal Output N C N C Power Supply Common N C Power Supply Vdc Analog Tare meters when grounded Analog Set Point Input controllers N C Ground RS 232 RX receive or RS 485 RS 232 TX send or RS 485 Check your device s calibration certificate and user manual for the actual electrical input output reguirements as all instruments are custom configured to some extent NOTE Pins 5 11 12 and 15 are connected together inside of the device and
34. ceNet Assembly Object Class 0x04 Connection Object Class 0x05 S Device Supervisor Class 0x30 50 Technical Data for DeviceNet Meters Gauges and Controllers NOTICE The following specifications are applicable to Alicat DeviceNet enabled meters gauges and controllers only All other operating specifications are shown in the Technical Data page for standard Alicat instruments All standard device features and functions are available and operate in accordance with the standard Alicat operating manual provided with the device Specification Meter or Small Valve Large Valve Description P Gauge Controller Controller p Input Output Signal DeviceNet Digital Electrical Connections M12 Micro Connector Supply Voltage 7 to 30 Vdc 12 to 30 Vdc 24 to 30 Vdc 80mA 12Vdc 295mA 12Vdc Supply Current 65mA 24Vdc 280mA 24Vdc 780mA 24Vdc 4 785 4 067 350 Bad 525 1 8 NPT NEE K Both Sides 2 225 E gt 150 125 o o ST T 3 925 o ee 350 525 2X D 8 32UNC V DeviceNet MC10SLPM shown to provide DeviceNet connector dimensions only Flow body and valve dimensions will vary with range Please see Alicat s device specifications for complete dimensions DeviceNet units do not have a display screen 51 Optio
35. continued LOOP VAR Water flow controllers are defaulted to volume flow Volume means that the controller is aie RE ae closing the loop on the volume flow rate This means that when you give the controller a set point the controller compares that set point to the measured volume flow rate and adjusts the valve to try to make the flow and the set point match For the volume flow rate the input signal e g 0 5 Vdc corresponds to the full scale flow rate for the device ON AUTO OFF AUTO refers to the standard auto tare or auto zero feature The auto tare feature automatically tares LN UP LN DN takes the detected signal as zero the unit when it receives a zero set point for more than two seconds gt Volumetric Flow A zero set point results in the closing of the valve and a known no flow condition This feature makes the device CANCEL more accurate by periodically removing any cumulative errors associated with drift gt It is recommended that the controller be left in the default auto tare ON mode unless your specific application reguires that it be turned off 28 PID TUNING SETPT SOURCE LN UP gt PID PD PID PD2I PID CANCEL LOOP VAR LN DN LOOP TYPE SETPT 80 6 MAIN PID Values determine the performance and operation of your proportional control valve These terms dictate control speed control stability overshoot and oscillation All units leave the
36. d the implied warranty of fitness for a particular purpose and any warranty against infringement of any patent Continued use or possession of Products after expiration of the applicable warranty period stated above shall be conclusive evidence that the warranty is fulfilled to the full satisfaction of Buyer Alicat makes no warranty as to experimental non standard or developmental Products Accessories purchased from Alicat are not covered by this warranty Conformity Supplemental Information The product complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC including 93 68 EEC and carries the CE Marking accordingly Contact the manufacturer for more information 09 28 2012 Rev 23 DOC LLCMAN16 Notes for Using Alicat Water Flow Devices gt USE ONLY PURE CLEAN DI OR DISTILLED WATER IN THIS DEVICE gt DO NOT use tap water or water with any biological components minerals or oils Any of these substances will affect the viscosity of the water creating flow measurement inaccuracies More importantly these impurities will guickly build up in the laminar flow zone cause corrosion and render the measuring capabilities of the device useless Pure DI water itself is corrosive to some extent but it is the contaminants in your system that will be most detrimental to your Alicat liguid water flow meter If you cannot meet the reguirement of pure water then do not use the Alicat water flow d
37. duct shall be free from defects in materials and workmanship for the life of the Products Under this warranty the Product will be repaired or replaced at manufacturer s option without charge for parts or labor when the Product is carried or shipped prepaid to the factory together with proof of purchase The foregoing shall constitute the exclusive and sole remedy in lieu of other remedies of the Buyer for any breach by Alicat Scientific of this warranty to the maximum extent permitted by law This warranty does not apply to any Product which has not been installed or used in accordance with the Product operation and installation specifications provided to Buyer verbally or in writing by Alicat Scientific for the proper and normal use of the Product Buyer agrees hereunder that Alicat reserves the right to void any warranty written or implied if upon Alicat s examination of Product shall disclose to Alicat s satisfaction that the Product failure was due solely or in part to accident misuse neglect abuse alteration improper installation unauthorized repair or improper testing by Buyer or agent of Buyer Alicat Scientific shall not be liable under any circumstances for indirect special consequential or incidental damages in connection with or arising out of the sale performance or use of the Products covered by this warranty Alicat Scientific does not recommend warrant or assume responsibility for the use of the Products in life supp
38. ecked Those settings not mentioned here are normally okay in the default position 6 Save the settings close HyperTerminal and reopen it In Polling Mode the screen should be blank except the blinking cursor In order to get the data streaming to the screen hit the Enter key several times to clear any extraneous information Type followed by Enter or using the RS 232 RS 485 communication select menu select as identifier and exit the screen If data still does not appear check all the connections and com port assignments Tareing via RS 232 RS 485 L Series only Tareing or zeroing the flow meter provides it with a reference point for zero flow This is a very simple but important step in obtaining accurate measurements It is good practice to zero the flow meter each time it is powered up If the flow reading varies significantly from zero after an initial tare give the unit a minute or so to warm up and re zero it If possible it is helpful to zero the unit near the expected operating pressure by positively blocking the flow downstream of the flow meter prior to entering the Tare command Zeroing the unit while there is any flow will directly affect the accuracy by providing a false zero point If in doubt about whether the flow is positively blocked remove it from the line and positively block both ports before entering the Tare command If the unit reads a significant negative value when remo
39. eneral terms the P term can be thought of as how fast the controller responds to change and the D term can be thought of as a damping factor 40 TROUBLESHOOTING Display does not come on or is weak Check power and ground connections and supply voltage Please reference the technical specifications page 44 to assure you have the proper power for your model Flow reading is approximately fixed either near zero or near full scale regardless of actual line flow Differential pressure sensor may be damaged A common cause of this problem is instantaneous application of high pressure as from a snap acting solenoid valve upstream of the meter If you suspect that your pressure sensor is damaged please discontinue use of the device and contact Alicat Displayed volumetric flow pressure or temperature is flashing and message VOV POV or TOV is displayed Our flow meters and controllers display an error message VOV volumetric overrange POV pressure overrange TOV temperature overrange when a measured parameter exceeds the range of the sensors in the device When any item flashes on the display neither the flashing parameter nor the flow measurement is accurate Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy If the unit does not return to normal contact Alicat Meter reads negative flow when there is a confirmed no flow condition This is an indication
40. erTerminal or from a text file can be pasted directly into Excel When the data is pasted it will all be in the selected column Select Text to Columns under the Data menu in Excel and a Text to Columns Wizard dialog box will appear Make sure that Fixed Width is selected under Original Data Type in the first dialog box and click Next In the second dialog box set the column widths as desired but the default is usually acceptable Click on Next again In the third dialog box make sure the column data format is set to General and click Finish This separates the data into columns for manipulation and removes symbols such as the plus signs from the numbers Once the data is in this format it can be graphed or manipulated as desired For extended term data capture see Sending a Simple Script to HyperTerminal on page 37 35 Data Format The data stream on the screen represents the flow parameters of the main mode in the units shown on the display For L Series Flow Meters there are three columns of data The first column is line pressure normally in PSIG and only in units eguipped with the optional pressure sensor the second column line temperature normally in C and the third column is the volume flow rate in the units specified at time of order and shown on the display 014 70 025 00 4 123 014 70 025 00 4 123 014 70 025 00 4 123 014 70 025 00 4 123 014 70 025 00
41. eraging on page 22 The output signal is lower than the reading at the display This can occur if the output signal is measured some distance from the meter as voltage drops in the wires increase with distance Using heavier gauge wires especially in the ground wire can reduce this effect My controller oscillates wildly and or exhibits very different reactions to the set point than I expect Conditions considerably different than those at which the device was originally set up can necessitate a re tuning of the PID loop Avoid long runs of small diameter tubing in the system increase line size RS 232 RS 485 Serial Communications is not responding Check that your meter is powered and connected properly Be sure that the port on the computer to which the meter is connected is active Confirm that the port settings are correct per the RS 232 RS 485 instructions in this manual Check the RS 232 RS 485 communications select screen for current meter readings Close HyperTerminal and reopen it Reboot your PC See pages 14 15 and 31 for more information on RS 232 RS 485 signals and communications Slower response than specified L Series Meters and LC Series Controllers feature a programmable Geometric Running Average GRA Depending on the full scale range of the meter it may have the GRA set to enhance the stability readability of the display which would result in slower perceived response time Please see Pressure Aver
42. essories 40u element ILFE4OL Filters amp Elements FNPT FNPT 10 32 5u CF 303 20 316 requires MNPT to MNPT coupler to interface with Alicat flow bodies 10 32 Male UNF to 1 8 FNPT Adapter 1 4 4mm SS 4M0 1 4 410133 1 4 6mm s gt 6M0 14 Male M5 10 32 Buna N O ring face seal to 1 8 Female NPT 58 Eight Pin Mini DIN Connector Pin Outs If your Alicat Instrument was ordered with the standard Eight Pin Mini DIN connection please be sure to reference the following pin out diagram Standard 8 Pin Mini DIN Pin Out Mini DIN cable color Inactive or 4 20mA Primary Output Signal Static 5 12 Vdc or Secondary Analog Output 4 20mA 5Vdc 10Vdc 2 E Brown or Basic Alarm RS 232 Input Signal Red EN Analog Input Signal RS 232 Output Signal 0 5 Vdc or 0 10 Vdc Output Signal Power In as described above Blue Ground common for power communications and signals Note The above pin out is applicable to all the flow meters and controllers with the Mini DIN connector The availability of different output signals depends on the options ordered Underlined Items in the above table are optional configurations that are noted on the unit s calibration sheet Locking Industrial Connector Pin Outs If your Alicat Instrument was ordered with a Six Pin Locking Industrial connection please be sure to reference the following pin out diagram A locking industrial connector is standard on all CSA ATE
43. evice in your application Damage caused by impurity build up is not covered by the warranty gt Please read the operating manual that accompanied your device Keep the manual for future reference gt When first using the Alicat water meter or controller for the day please take the following precautions 1 Apply your source pressure approx 20 30 PSIG for best results to the device with the downstream flow blocked off 2 Then slightly open both bleed ports DO NOT completely remove the screws and allow any trapped air to escape Allow some flow and let water pass through while bleeding if the unit is a controller be sure to give it at least a 50 set point See page 11 of the manual for more information regarding bleed ports and bleeding 3 Try not to get any water in between the black electronics case and the stainless steel flow body Wipe up any excess water around these seams 4 Tighten up both bleed screws and then block the downstream water flow again Visually verify zero flow through Please turn the page W Alicat Scientific Inc 7641 N Business Park Drive SCIENTIFIC Tucson AZ 85743 USA Notes for Using Alicat Water Flow Devices continued 5 Now you can safely tare zero a meter page 19 using the tare button on the device or in the case of a water flow controller command the zero set point page 27 which will auto tare the unit gt Smooth and consistent source pressure is highly preferable
44. factory settings if necessary Enter the value you wish to try by writing the new value to register 22 For example if you wished to try a D term of 25 you would type W22 25 followed by Enter where the bold number denotes the new value The computer will respond to the new value by confirming that 22 25 To see the effect of the change you may now poll the unit by typing A followed by Enter This does an instantaneous poll and returns the values once You may type A Enter as many times as you like Alternately you could resume streaming mode by typing followed by Enter Repeat You may test your settings for a step change by changing the set point To do this type A32000 A is the default single unit address if you have multiple addressed units on your RS 232 RS 485 line the letter preceding the value would change accordingly followed by Enter to give the unit a full scale set point Monitor the unit s response to the step change to ensure it is satisfactory for your needs Recall that the P term controls how quickly the unit goes from one set point to the next and the D term controls how quickly the signal begins to decelerate as it approaches the new set point controls the overshoot 33 Changing From Streaming to Polling Mode When the meter is in the Streaming Mode RS 485 units do not have a streaming mode the screen is updated approximately 10 60 times per second de
45. flow measurement is accurate Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy Flashing Error Message An error message VOV volumetric If the unit does return to normal operation contact Alicat SELECT MENU From Select Menu you can interact with your RS 232 RS 485 settings or read manufacturer s data Press the button next to the desired operation to bring that function to the screen MODEL INFO ALICAT SCIENTIFIC Ph 520 290 6060 ZERO PRESS FLOW BAND AVG AVG Fax 520 290 0109 UNIT ID A BACK LCD BACK CONTRAST MAIN Manufacturer Data Communication Select R5232 COMM MFG DATA Select Menu Main An explanation for each screen can be found on the following pages 20 COMMUNICATION SELECT Access Communication Select by pressing the button above RS232 COMM or RS485 COMM on the Select Menu display UNIT ID BALD Unit ID Valid unit identifiers are the A letters A Z and The identifier allows you to assign a unique address to each device so that multiple units can be connected to a single RS 232 or RS 485 computer port Press UNIT ID Use the UP and DOWN buttons to change the Unit ID Press SET to record the ID Press Reset to return to the previously recorded Unit ID Any Unit ID change will take effect when Communication Select is exited If the symbol is selected as the Unit UN
46. is uni directional reversing the flow direction will inflict no damage as long as the maximum specified limits are not exceeded The differential pressure sensor utilized in this flow meter controller is a very sensitive device capable of detecting minute differences in pressure Smooth and consistent source pressure is highly preferable as any pulsing or fluctuation in water pressure will hydraulically couple to the differential pressure sensor and the resultant flow reading will jump analogously Please note that depending on model and flow range water flow meters have an inherent internal pressure drop higher than that of standard gas flow meters of similar flow range The minimum water device pressure drop is 2 PSIG going all the way to 20 PSIG drop in certain models Your source input pressure must meet or exceed this specification in addition to any back pressure you may have on the downstream end of your process CAUTION EXCEEDING THE MAXIMUM SPECIFIED LINE PRESSURE MAY CAUSE PERMANENT DAMAGE TO THE SOLID STATE DIFFERENTIAL PRESSURE TRANSDUCER 10 BLEED PORTS Alicat Scientific L and LC Series flow meters and controllers are eguipped with bleed ports on the front to aid in the removal of air bubbles from the differential pressure sensor ports The bleed ports consist of a threaded hole with an 8 32 nylon tipped screw After installation or anytime it is suspected that air may be trapped in the sensor ports bleed the ports
47. lding Create scripts to adjust a controller s set point value at variable specified time intervals Charting Chart as many parameters as you want off as many devices as you want with color coding zooming and printing functionality Alarms Create software alarms that will notify you of given parameter conditions Data Capture amp Logging Capture and log data to either a csv file or a txt file Improved Data Logging and Data Log File Splitting for easy to manage data Accessory Flow Vision MX Software Alicat s New Flow Vision MX software gives you an easy way to do GAS BLENDING using Alicat Mass Flow Controllers and your own PC Flow Vision VIX software is a simple way to connect up to six Alicat mass flow controllers and create your own gas mix concentrations Using our inexpensive BB9 USB and a single USB connection you can e Create your own gas blends e Adjust flow rates e Save your specific blend formulas All the controllers can be powered through the BB9 USB with a single power supply Just connect your unique gases to each controller select the gas type either locally on the controller or through Flow Vision MX manifold the flow outputs and create your gas mix 56 Accessories DC 251 8 Pin Male Mini DIN connector cable single ended 25 foot length DC 301 8 Pin Male Mini DIN connector cable single ended 30 foot length IC50 Industrial cable 6 Pin single ended 50 foot length 5 7 Acc
48. lted to 63 In either case when an Alicat unit is attached to a DeviceNet and powered up it will send out a duplicate MAC reguest If there already is a device on the network with the same address the Alicat device will decrement its address and try again until it finds an unoccupied address Once it finds a unigue address it stores that address into its nonvolatile memory enabling it to come back on at the same address Side To utilize the DB9 pinout on your DeviceNet ENN compatible instrument follow the pin out diagram 62 3 3 9 shown here NC GND NC 7 to 30VDC GND NC 1 2 3 4 5 6 7 8 9 49 BAUD RATE The following baud rates are available 125K 250K 500K The default baud rate is 125K Baud You may specify the baud rate at the time of order The baud rate can be changed by using a set attribute single DeviceNet service request to the DeviceNet Object Class 03 Instance 01 Attribute ID 02 A setting of O is 125K baud 1 is 250K baud and 2 is 500K baud In order for a change of baud rate to take affect the unit will have to be power cycled SUPPORTED DEVICE TYPE Mass Flow Controller Device Type 0x1A SUPPORTED CLASSES Identity Object Class Ox01 SUPPORTED ATTRIBUTES ser vendori arvata Ga Device ype oaa Mass Flow Product Code See Product Codes Get Get Get Get Get Get Get Get Get Serial Number OHA DeviceNet Object Class 0x03 Devi
49. munication with your flow device as outlined in the manual 10 Set the flow device to Polling Mode as described in the manual Each time you type A lt Enter gt the meter should return one line of data to the screen 11 Go to the File menu in HyperTerminal and select Properties 12 Select the Settings tab 37 13 Click on the ASCII Setup button 14 The Line Delay box is defaulted to 0 milliseconds This is where you will tell the program how often to read a line from the script file you ve created 1000 milliseconds is one second so if you want a line of data every 30 seconds you would enter 30000 into the box If you want a line every 5 minutes you would enter 300000 into the box 15 When you have entered the value you want click on OK and OK in the Properties dialog box 16 Go the Transfer menu and select Send Text File NOT Send File 17 Browse and select the text script file you created 18 Click Open 19 The program will begin executing your script file reading one line at a time with the line delay you specified and the flow device will respond by sending one line of data for each poll it receives when it receives it You can also capture the data to another file as described in the manual under Collecting Data You will be simultaneously sending it a script file and capturing the output to a separate file for analysis 38 FLOW MEASUREMENT OPERATING PRINCI
50. n Totalizing Mode Meters and Controllers can be purchased with the Totalizing Mode option This option adds an additional mode screen that displays the total flow normally in the units of the main flow screen that has passed through the device since the last time the totalizer was cleared The Totalizing Mode screen is accessed by pushing the TOTAL button on the MAIN display ELAPSED MASS SCC Pb ae MASS TOTAL The counter can have as many as six digits Atthe time of order the customer must specify the range This directly affects 0000 00 00 z the maximum count For instance if a range of 1 100ths of a liter is specified on a meter BACK RESET MENU which is totalizing in liters the maximum count would be 9999 99 liters If the same unit were specified with a 1 liter range the maximum count would be 999999 liters Rollover The customer can also specify at the time of order what the totalizer is to do when the maximum count is reached The following options may be specified No Rollover When the counter reaches the maximum count it stops counting until the counter is cleared Rollover When the counter reaches the maximum count it automatically rolls over to zero and continues counting until the counter is cleared Rollover with Notification When the counter reaches the maximum count it automatically rolls over to zero displays an overflow error and continues counting until the counter is cleared ELAPSE
51. nd Pin 8 to your computer serial port as shown below See page 31 for details on accessing RS 232 RS 485 input 8 Pin MiniDIN Cable End 8 Pin MiniDIN Connector 9 Pin Serial Connection 8 Pin MiniDIN Connection Pin Pin Function Pin 53 Ground Ground 8 DB9 to Mini DIN Connection for RS 232 RS 485 Signals 14 OUTPUT SIGNALS RS 232 RS 485 Digital Output Signal To use the RS 232 or RS 485 output signal it is necessary to connect the RS 232 RS 485 Output Signal Pin 5 the RS 232 RS 485 Input Signal Pin 3 and Ground Pin 8 to your computer serial port as shown on page 8 See page 31 for details on accessing RS 232 RS 485 output Standard Voltage 0 5 Vdc Output Signal Meters controllers equipped with a 0 5 Vdc optional 0 10 Vdc will have this output signal available on Pin 6 This output is generally available in addition to other optionally ordered outputs This voltage is usually in the range of 0 010 Vdc for zero flow and 5 0 Vdc for full scale flow The output voltage is linear over the entire range Ground for this signal is common on Pin 8 Optional 0 10 Vdc Output Signal If your meter controller was ordered with a 0 10 Vdc output signal it will be available on Pin 6 See the Calibration Data Sheet that shipped with your meter to determine which output signals were ordered This voltage is usually in the range of 0 010 Vdc for zero flow and 10 0 Vdc for full sc
52. of an improper tare If the meter is tared while there is flow that flow is accepted as zero flow When an actual zero flow condition exists the meter will read a negative flow Simply re tare at the confirmed zero flow condition Also note that while the meter is intended for positive flow it will read negative flow with reasonable accuracy it is not calibrated for bi directional flow and no damage will result See TARE page 19 After installation there is no flow LC Series controllers incorporate normally closed valves and reguire a set point to operate Check that your set point signal is present and supplied to the correct pin and that the correct set point source is selected under the SETPT SOURCE list in the control set up display page 27 Also check that the unit is properly grounded My controller does not respond to the set point Check that your set point signal is present and supplied to the correct pin and that the correct set point source is selected under the SETPT SOURCE list in the control set up display page 27 Also check that the unit is properly grounded The flow lags below the set point Be sure there is enough pressure available to make the desired flow rate If either the set point signal line and or the output signal line is relatively long it may be necessary to provide heavier wires especially ground wiring to negate voltage drops due to line wire length An inappropriate PID tuning can also cause this symp
53. ond integrates the proportional error times the I gain over time and adds the result to the output drive register The third operates on the present process value minus the process value during the immediately previous evaluation cycle This velocity term is multiplied by the D gain with the result subtracted from the output drive register Increasing the P gain will promote the tendency of the system to overshoot ring or oscillate Increasing the D gain will reduce the tendency of the system to overshoot gain is used to control the rate at which the process value converges upon the set point Y The PD PID algorithm is the PID algorithm used on most Alicat controllers It is a simplified version of the above described PID method It is divided into two segments The first compares the process value to the set point to generate a proportional error The proportional error is multiplied by the P gain with the result added to the output drive register The second operates on the present process value minus the process value during the immediately previous evaluation cycle This velocity term in multiplied by the D gain with the result subtracted from the output drive register The above additions to and subtractions from the output drive register are carried over from process cycle to process cycle thus performing the integration function automatically Increasing the P gain will promo
54. ort applications or systems Alicat s warranties as herein above set forth shall not be enlarged diminished or affected by and no obligation or liability shall arise or grow out of Alicat s rendering of technical advice in connection with Buyer s order of the Products furnished hereunder If Product becomes obsolete Alicat Scientific at its own discretion reserves the right to repair the Product with available replacement parts or upgrade the Product to a current commercially available version of the original Product Should upgrading the Product be deemed necessary by Alicat Buyer hereby agrees to pay an upgrade fee equal to seventy percent of the retail value of the replacement Product Alicat Scientific hereunder makes no claim that replacement Products will look function or operate in the same or similar manner as the original product When a Product is returned to Alicat Scientific for recalibration this service is considered normal preventative maintenance Recalibration of Product shall not be treated as a warranty service unless recalibration of Product is required as the result of repairs to Product pursuant to this Warranty Failure to recalibrate Product on a yearly basis will remove any and all obligations regarding repair or replacement of Product as outlined by this Warranty to Buyer from Alicat Scientific This Warranty is in lieu of all other relevant warranties expressed or implied including the implied warranty of merchantability an
55. ox If more than nine devices will be reguired additional Multi Drop Boxes can be daisy chained together with a double ended 8 pin mini DIN cable plugged into any receptacle on both boxes BB9 Power Supply for Large Valve Controllers The PS24VHC Power Supply 24Vdc High Current is a 6 5Amp 24Vdc power supply designed for running multiple large controllers on a BB9 The 6 5Amp power supply can run as many as 8 large valve controllers which makes it ideal for the BB9 and multiple large valve or small valve large valve combination controllers on a BB9 BB9 Multi Drop Box H 1 55 A 156 Thru 4 Places 2 77 Y f T O G U 1 75 3 46 HO O O O UU G 340 Thru 2 PL L 175 Thru 2 PL 55 Accessory Flow Vision SC Software Flow Vision SC is an intuitive software interface to help your test cycles run smoother and shorten your engineering time Flow Vision SC lets you connect to and communicate with multiple Alicat units simultaneously Now you can view virtual displays control tabs charts and data lines from every connected Alicat device on the same screen Flow Vision SC supports all RS 232 and RS 485 Serial communication functions including gas selection tareing set point control valve tuning and flow averaging Session Saving Save and reload your configuration data with confidence Script Bui
56. pending on the amount of data on each line so that the user sees the data essentially in real time It is sometimes desirable and necessary when using more than one unit on a single RS 232 line to be able to poll the unit In Polling Mode the unit measures the flow normally but only sends a line of data when it is polled Each unit can be given its own unigue identifier or address Unless otherwise specified each unit is shipped with a default address of capital A Other valid addresses are B thru Z Once you have established communication with the unit and have a stream of information filling your screen 1 Type A followed by Enter or using the RS 232 RS 485 communication select menu select A as identifier and exit the screen to stop the streaming mode of information Note that the flow of information will not stop while you are typing and you will not be able to read what you have typed Also the unit does not accept a backspace or delete in the line so it must be typed correctly If in doubt simply hit enter and start again If the unit does not get exactly what it is expecting it will ignore it If the line has been typed correctly the data will stop You may now poll the unit by typing A followed by Enter This does an instantaneous poll of unit A and returns the values once You may type A Enter as many times as you like Alternately you could resume streaming mode by typing followed by Enter
57. rature and viscosity for water is well established and Alicat Scientific L and LC Series units utilize a high accuracy temperature sensor and this relationship to provide an accurate viscosity reference For this reason these meters and controllers are generally recommended only for use with pure water Any additives to water such as antifreeze or disinfectants that might affect the viscosity should be avoided As shown in Eguation 2 an error in viscosity between the actual fluid and water will result in a 1 1 error percentage in the flow rate reported by the meter For instance if the actual fluid passing through the meter is 5 different than that of pure water at a given temperature the reported flow rate will be 5 inaccurate 39 FLOW CONTROL OPERATING PRINCIPLE For the purposes of this explanation the term valve will refer to the proportional control valve mounted on the controller The term controller will refer to the flow meter and the measurement and control electronics portion of the device In actuality the whole device is generally referred to as a controller The valve normally mounted downstream of the controller LC Series Flow Controllers ship with a normally closed proportional control valve No flow will occur until the valve receives a voltage signal from the controller and the controller will not send a voltage signal to the valve until the user provides a set point to the controller The user can provide a se
58. ressure sensor available Serial or PROFIBUS 6r 9 P DeviceNet Input Output Signal Volumetric Flow 0 5Vde Analog Optional Input Output Signal Secondary Analog Pressure Temperature or Flow 0 5 Vdc 0 10Vdc 4 20mA Electrical Connections 8 Pin Mini DIN DB9 or DB15 Mounting Attitude Sensitivity None Control response somewhat sensitive to inverted operation Tare after installation Wetted Materials 303 8 302 Stainless Steel Viton Silicone RTV Rubber Polyethermide Silicon Glass LC Controllers Add 430FR Stainless Steel Brass LCR Controllers Add 416 Stainless Steel Delrin 1 If selectin units do no 2 15 volts require available options have the display See PROFIBUS or a supp volta os and currents or 4 20mA output 3 If your application demands a different material please contact info alicat com or 888 290 6060 for PROFIBUS or DeviceNet no analog signal is available PROFIBUS DeviceNet eviceNet specifications for PROFIBUS or Mechanical Specifications Full Scale Flow L Series Mechanical Dimensions Process Connections M5 10 32 Female Pressure Drop PSID 0 5CCM to 1CCM 4 4H x 2 4 W x 1 1 D Thread 2 0 2CCM to 500CCM gt i M 2 0 1LPM 4 6 H x 2 4 W x 1 1 D 1 8 NPT Female 40 2LPM 4 7 H x 2 7 W x 1 1 D 1 4 NPT Female 4 0 SLPM 7 5 10 0 10LPM 5 1 H x 4 0 W x 1 6 D
59. ro it CANCEL If possible zero the unit near the expected operating pressure by positively blocking the flow downstream of the flow meter prior to pushing the TARE button gt Zeroing the unit while there is any flow will directly affect the accuracy by providing a false zero point If in doubt about whether a zero flow condition exists remove the unit from the line and positively block both ports before pressing the TARE button If the unit reads a significant negative value when removed from the line and blocked it was given a false zero It is better to zero the unit at atmospheric pressure and a confirmed no flow condition than to give it a false zero under line pressure It is not uncommon for a meter to read a small value when it is removed from the process line as water can hang in one or both of the differential pressure sensor ports If the unit reads a significant negative value when removed from the line and blocked it is a good indication that it was given a false zero 19 Volume The volume flow rate is defaulted on the primary display Press the unit of measure button cem in the example above to return the volume flow rate to the primary display MENU Pressing MENU switches the screen to the Select Menu display overrange POV pressure overrange TOV temperature overrange flashes when a measured parameter exceeds the range of the sensor When any item flashes neither the flashing parameter nor the
60. s moisture or solvents For repair recalibration or recycling of this product contact Alicat Scientific Inc 7641 N Business Park Drive Tucson Arizona 85743 USA Ph 520 290 6060 Fax 520 290 0109 email info A alicatscientific com Web site www alicatscientific com Flow Conversion Table CCM CCH LPM LPH CFM CFH CFH 0 0021 0 00003 2 1189 0 035 60 0 1 0 CFM 0 000035 0 0000005 0 035 0 00059 1 0 0 0166 LPH 0 06 0 001 60 0 1 0 1699 0 28 316 LPM 0 001 0 000017 10 0 0166 28 316 0 4719 CCH 60 0 1 0 60000 0 1000 0 1699011 0 28317 0 CCM 1 0 0 0167 1000 0 16 667 28317 0 471 947 43 Technical Data for Water Flow L Meters 8 LC 8 LCR Water Flow Controllers Operating Specifications Specification L Series LC Series LCR Series Description 0 5CCM to 1LPM to Available Ranges 10LPM 5CCM to 500CCM 5LPM Full Scale Accuracy 2 Full Scale Repeatability 12 Full Scale Operating Range 2 to 100 Full Scale Measure or Control Typical gtd 20 100 Milliseconds Adjustable Operating Temperature 10 to 50 Celsius Zero Shift 0 02 Full Scale Celsius Atm Span Shift 0 02 Full Scale Celsius Atm 128 4 Flow Rate Measurable 102 4 Controllable Full Scale Common Mode Pressure 199 Pele Supply Current 0 040 0 250 0 750 Amp Supply Voltage 7 30 12 30 24 30 Vdc Input Output Signal Temperature and Flow RS 232 Serial or dro Digital Optional P
61. se of features on Alicat devices may not be present on host wiring A 66 DB15 Pin Outs If your instrument was ordered with a DB15 connection be sure to check the Calibration Label on the device and reference the appropriate pin out diagram The following pin out chart describes the safest and generally compatible arrangement when connecting a non Alicat DB15 wire to a DB15S equipped Alicat Not all features may be available between brands but the common denominators are featured in our DB15 offerings along with some options for customization DB15S Pin Out Sierra Style Male Connector Front View Female Connector Front View Pin Number Function 1 Ground 2 Primary Analog Signal Output 3 N C 4 N C Ground N C N C Analog Tare meters when grounded Analog Set Point Input controllers oT Power Supply Common Ground Check your device s calibration certificate and user manual for the actual electrical input output reguirements as all instruments are custom configured to some extent NOTE Pins 1 5 9 10 and 15 are connected together inside of the device and are common grounding points N C Not Connected Open can be used for custom pin assignments please consult factory Added to allow for full use of features on Alicat devices may not be present on host wiring 67
62. structions found in this manual Please see page 53 for information regarding battery replacement EN Many Alicat instruments are built for specific applications Two instruments with the same flow range and part number may look and act quite differently depending upon the application the instrument was built for Care should be taken when moving an instrument from one application to another TABLE OF CONTENTS Page GETTING STARTED 8 MOUNTING 9 PLUMBING 9 i W Information for Alicat TFT Color Display Instruments 1 DISPLAYS AND MENUS L Series Meters MAN O O SELECT MENU O 6 CONTROLSETUP A SetPointSouce O LoopVariable La On OffAutotae 28 PID Tuning 29 25 26 27 27 28 28 29 TABLE OF CONTENTS o Page PROFIBUS Technical Specifications 48 Option Remote Electronics Option Remote Panel Display 54 Accessory BB9 Multi Drop Box Accessory Flow Vision SC Accessory Flow Vision MX 56 7 Accessories Eight Pin Mini DIN Pin Out Locking Industrial Connector Pin Out DB9 Pin Out Diagram 60 PROFIBUS Pin Out DB15 Pin Out Diagrams GETTING STARTED Power Jack 8 Pin MiniDIN Bleed Screws Display Screen Inlet Connection Port Flow Direction Arrow L Water Flow Meter shown with connection port fittings Inlet Connection Port LC Water Flow Controller shown with the standard downstream valve and connection port fittings
63. t point either locally via the display and user interface buttons or more commonly by providing an external signal that corresponds to the flow range of the controller This external signal can be an analog voltage or current signal such as a 0 5 Vdc or 4 20 mA signal or a digital RS 232 RS 485 signal via serial communication with a computer The controller utilizes what is called PID Proportional Integral Derivative loop control circuitry and software The PID loop control works by repeatedly comparing the measured flow rate to the set point and incrementally adjusting the voltage signal to the valve in a continuous attempt to match the measured flow rate to the set point For example at any given time the controller looks at the measured flow rate and the set point if the set point is higher than the measured flow rate the controller will slightly increase the voltage signal to the valve and thus open it little more If the set point is lower than the measured flow rate the controller will slightly decrease the voltage signal to the valve and thus close it off a little more This look compare and adjust loop occurs on the order of 1000 times each second LC Series Flow Controllers ship with a general PID tuning that is usually sufficient for most applications Occasionally an application will reguire the customer to change this tuning The Proportional and Derivative terms can be field adjusted in all LC controllers In very g
64. te the tendency of the system to overshoot ring or oscillate Increasing the D gain will reduce the tendency of the system to overshoot The reduction in the number of variables from three to two greatly simplifies the tuning process The PD2I PID algorithm is used primarily for high performance pressure and flow control applications It exhibits two basic differences from the PD PID algorithm that most controllers utilize 1 Instead of applying a damping function based upon the rate of change of the process value it applies a damping function based upon the square of the rate of change of the process value 2 The damping function is applied directly to the proportional error term before that term is used in the proportional and integral functions of the algorithm This provides a certain amount of look ahead capability in the control loop Because of these differences you will note the following 1 Increasing P gain can be used to damp out overshoot and slow oscillations in pressure controllers You will know that P gain is too high when the controller breaks into fast oscillations on step changes in set point On flow controllers too high a P gain results in slower response times Too low a P gain results in overshoot and or slow oscillation A good starting value for P gain is 200 2 If the unit was originally shipped with the PD2I algorithm selected the D gain value should be left
65. ters and LC Series Controllers have female inlet and outlet port connections Welded VCR and other specialty fittings may have male ports The inlet and outlet port sizes process connections for different flow ranges are shown on pages 44 47 Instruments with M5 10 32 ports have O ring face seals and require no sealant or tape Do not use tape with welded or o ring fittings For non M5 10 32 ports use thread sealing Teflon tape to prevent leakage around the port threads Do not wrap the first two threads This will minimize the possibility of getting tape into the flow stream and flow body EN Do not use pipe dopes or sealants on the process connections as these compounds can cause permanent damage to the controller should they get into the flow stream When changing fittings carefully clean any tape or debris from the port threads We recommend that a 20 micron filter be installed upstream of meter controllers with full scale ranges of 100CCM or less and a 40 micron filter be installed upstream of meter controllers with full scale ranges above 100CCM gt Avoiding long runs of small diameter tubing upstream or downstream of the device will reduce water hammer PRESSURE Maximum operating line pressure is 100 PSIG 689 kPa If the line pressure is higher than 100 PSIG 689 kPa use a pressure regulator upstream from the flow controller to reduce the pressure to 100 PSIG 689 kPa or less Although the meter s operation
66. tom if the D term is too large relative to the P term page 29 41 Meter does not appear to be accurate when compared against another valid measurement of the physical flow such as weight over time Water flow meters can normally be compared against one another provided there are no leaks between the two meters One common cause of inaccuracy inconsistency or unusual readings is air bubbles trapped in one or both of the legs of the differential pressure sensor Bleed the ports as described in this manual to remove this possibility See page 11 Another possibility is that the water has some contaminant or additive such as antifreeze that affects the viscosity of the water A third possibility is an improper tare error see page 19 Controller is slow to react to a set point change or imparts an oscillation to the flow An inappropriate PID tuning can cause these symptoms Use at conditions considerably different than those at which the device was originally set up can necessitate a re tuning of the PID loop page 29 Flow flutters or is jumpy The meters are very fast and will pick up any actual flow fluctuations such as from a diaphragm pump etc Also inspect the inside of the upstream connection for debris such a Teflon tape shreds Note L amp LC Series devices feature a programmable geometric running average GRA that can aid in allowing a rapidly fluctuating flow to be read Please see Pressure Averaging and Flow Av
67. too large very guickly Without any special programming skills you can use HyperTerminal and a text editing program such as Microsoft Word to capture text at defined intervals 1 Open your text editing program MS Word for example 2 Set the cap lock on so that you are typing in capital letters 3 Beginning at the top of the page type A lt Enter gt repeatedly If you re using MS Word you can tell how many lines you have by the line count at the bottom of the screen The number of lines will correspond to the total number of times the flow device will be polled and thus the total number of lines of data it will produce For example PD PPP gt A will get a total of six lines of data from the flow meter but you can enter as many as you like The time between each line will be set in HyperTerminal 4 When you have as many lines as you wish go to the File menu and select save In the save dialog box enter a path and file name as desired and in the Save as Type box select the plain text txt option It is important that it be saved as a generic text file for HyperTerminal to work with it 5 Click Save 6 A file conversion box will appear In the End Lines With drop down box select CR Only Everything else can be left as default 7 Click O K 8 You have now created a script file to send to HyperTerminal Close the file and exit the text editing program 9 Open HyperTerminal and establish com
68. ttery should be replaced A false signal can result when the voltage drops below its normally regulated level Alicat Portable Flow Meters and Gauges can also be powered by an optional AC DC plug in wall adaptor With the adaptor plugged into the flow meter the battery is bypassed and the meter will operate solely off the adaptor power supply Replacing the Battery 1 Remove the four Phillips head screws from the front cover and gently remove it as shown below Remove the 9V battery pulling the top of the battery out first Disconnect the old battery from the harness and replace it with a new battery Install the new battery bottom end first and replace the back cover so that the cushioning pad presses directly down on the battery 5 Replace the four Phillips head screws AC DC Adaptor Port fo Battery cover removal 53 Option Remote Electronics for High Line or Gas Temperatures Some applications involve operating temperatures outside the standard Alicat device specifications A solution using remote electronics is available This option is not applicable for liguid devices The flow body s components are minimized to only the reguired sensors The flow data is sent to the microprocessor electronics up to 6 feet away from the sensor package Relocating the sensitive electronics allows for installation of the flow body in ambient temperatures as high as 85 Celsius
69. ved from the line and blocked it is a good indication that it was given a false zero It is better to zero the unit at atmospheric pressure and a confirmed no flow conditions than to give it a false zero under line pressure To send a Tare command via RS 232 RS 485 enter the following strings In Streaming Mode SSV lt Enter gt In Polling Mode AddressSSV lt Enter gt e g BSSV lt Enter gt 31 Sending a Set point via RS 232 RS 485 LC and LCR Series only To send a set point via RS 232 RS 485 Serial must be selected under the Input list in the control set up mode To give controllers a set point or change an existing point simply type in a number between 0 and 65535 2 over range where 64000 denotes full scale flow rate and hit Enter The set point column and flow rates should change accordingly If they do not try hitting Enter a couple of times and repeating your command The formula for performing a linear interpolation is as follows Value Desired Set point X 64000 Full Scale Flow Range For example if your device is a 500 CCM full scale unit and you wish to apply a set point of 125 CCM you would enter the following value 16000 125 CCM X 64000 Full Scale Flow Range If the controller is in polling mode as described in Changing from Streaming Mode to Polling Mode the set point must be preceded by the address of the controller For example if your controller has been given an address of D
70. with gas temperatures under 100 Celsius In these applications we recommend our custom gauge calibration at a gas temperature of up to 70 Celsius This will reduce zero shift errors that occur when actual gas flow temperatures deviate substantially from the gas calibration temperature This configuration is also used in integrations that reguire a compact flow package at the installation point Option Remote Panel Display Our Remote Display option offers the flexibility of using Alicat s display with units that are embedded inside processes or instrument enclosures The Remote Display retains all of the same features as our standard display The Remote Display is ideal for e OEMs Remote Panel Mounting e Embedded Systems e Gas Panels e Fuel Cell Test Stations e Leak Detection Systems e Artificial Environments 54 Accessory BB9 Multi Drop Box The BB9 Multi Drop Box makes it convenient to wire multiple flow and or pressure devices to a single RS 232 or RS 485 port Now available with a USB interface The Multi Drop Box has nine 8 pin mini DIN ports available The ports are to be used with a standard double ended 8 pin mini DIN DC 62 style cable going from the box to each flow or pressure device A single DB9 D SUB type connector COM PORT connects using the included cable to the serial connector on a PC or laptop All of the flow and or pressure devices are powered via a terminal block on the front of the b
71. ys Technical Data for TFT Color Display Meters Gauges and Controllers The following specifications are applicable to Alicat TFT color display meters gauges and controllers only All other operating specifications are shown in the Technical Data page for standard Alicat instruments All standard device features and functions are available and operate in accordance with the Alicat operating manual provided with the device Specification Meter or Small Valve Large Valve Gauge Controller Controller Supply Voltage 7 to 30 Vdc 12 to 30 Vdc 24 to 30 Vdc Supply Current 80 mA 12Vdc 290 mA 12Vdc 780 mA 70 mA 24Vdc 200 mA 24Vdc 24Vdc 17 DISPLAYS AND MENUS L METERS Displays and Menus for LC and LCR Controllers are shown beginning page 24 The device screen defaults to Main display as soon as power is applied to the meter Main The Main display shows temperature and volume flow Line pressure will be PSIG C TARE V also be displayed if the meter was order pee tetas with this option 000 LEH Pressing the button adjacent to a d JE parameter will make that parameter the primary display unit SEC By hitting the MENU button at the bottom right of the screen you will enter the Select Menu display If your meter was ordered with the Totalizer option page 52 pushing the MENU button once will bring up the Totalizing Mode display Pushing MENU a second time will bring up the Select Menu display ELAPSED TI

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