USER'S MANUAL - TetraTec Instruments GmbH
Contents
1. 45 and 60 minutes 3 Press the PRGM key Desired Auto Shut Off time is selected top line reads AUTO SHUT OFF and bottom line reads ENTER TO SELECT 4 Press the left arrow Returns to Measure Mode key three times Note The Auto Shut Off timer is suspended during Data Logging and Leak Test sessions to prevent accidental loss of information Auto Shut Off is re instated after completion of Data Logging or Leak Test sessions User s Manual 9R122 IR Rev 1 May 2010 Lockout Select Enabling the Lockout feature prevents unauthorized users from making changes to the configuration of the manometer To enter the Program Mode the user must first enter the password two digit Lockout Code within approximately 40 seconds when prompted Failure to enter the correct two digit code within approximately 40 seconds will return the unit to Measure Mode Any two digit numeric code can be programmed The factory Lockout Code of 00 which is the default as shipped from the factory disables the Lockout To set the Lockout Code follow these steps Keystroke Display 1 From the Measure Mode Top line reads press the PRGM key If the PROGRAM MODE and Lockout is set enter the bottom line reads UNITS correct password when SELECT prompted twice INFO SELECT 3 Press the right arrow Top line reads LOCKOUT key then the up arrow key CODE and bottom line four t2. APPLY external pressure standards After pressure is stable press Bottom line displays the cal the right arrow key point value to apply 9 Repeat step 8 for CAL Top line reads POINT 4 5 POINTS 4 and 5 APPLY Bottom line displays the cal point value 24 User s Manual 9R122 IR Rev 1 May 2010 10 Use up or down arrow keys Top line reads SAVE to select NO or YES when Bottom line reads NO or asked Save the Re VES Calibration data 11 Press the PRGM key at Top line reads RE CAL YES to save the Re Calibration Bottom line reads START data or at NO to exit without Re cal is complete saving 12 Press the left arrow key Returns to Measure Mode RE CALIBRATION Restore Factory Defaults To restore the re calibration data to the factory defaults follow these steps Keystroke Cisplay 1 With unit OFF press Top line reads RE CAL and hold the MIN MAX Bottom line reads EDIT key turn the unit on using the ON OFF key then release 2 Press the up arrow key Top line reads RE CAL twice Bottom line reads RESTORE DEFAULTS 3 Press the PRGM key Top line reads RESTORE DEFAULTS Bottom reads YES or NO 4 Use the up and down Top line reads RESTORE arrow keys to select YES DEFAULTS or NO when asked to Bottom reads YES or restore defaults NO 5 Press the PRGM key at Top line
3. reads RE CAL YES to restore the Factory Bottom line reads Default Calibration data or RESTORE DEFAULTS at NO to exit without Factory defaults have restoring been restored 6 Press the left arrow Returns to Measure Mode key 25 User s Manual 9R122 IR Rev 1 May 2010 Specifications Type Range and Display Resolution 17 403 psia 900 0 mmHg XX YYY XXX Y Minimum Maximum Display Values Altitude 2000 0 to 36 000 0 Feet 609 6 to 10 972 8 Meters Indicated Air Speed 0 496 4 Knots approx 0 571 3 MPH approx 0 919 4 km h approx Note the barometric pressure value at time the TARE button is activated will determine the maximum indicated air speed Altitude Accuracy 0 02 F S F S 900 mm Hg Indicated Air Speed Accuracy 0 028 F S F S 900 mm Hg Accuracy statements include the combined effects of temperature non linearity repeatability hysteresis and resolution Warm up time 5 minutes Temperature Storage 40 C to 60 C 40 F to 140 F Operating 5 C to 50 C 23 F to 122 F Media Compatibility Al Absolute pressure sensors for use with gases and liquids compatible with 316L SS Pressure Limits Al units 77 PSIA 4000 mm Hg Abs Connection 1 8 female NPT 316L SS P1 is the pressure connection P2 is not accessible factory plugged with metal disc User must use a wrench on the pressure man
4. unit will not power up when a battery is installed this way Should this happen simply reverse the battery to align the polarity With the batteries secured in the battery compartment replace the compartment cover The cover has only one correct alignment The WARNING DO NOT OPEN IN EXPLOSIVE ATMOSPHERE statement on the battery cover must be visible and aligned in the middle of the manometer case To secure the cover torque the screws clockwise to 1 6 1 8 in lbs Do not over tighten 28 User s Manual 9R122 IR Rev 1 May 2010 Contact Information If the M203 can not be zeroed recalibrated or is damaged it must be returned to the factory for servicing In this case contact the Meriam Process Technologies representative in your area or call the factory at the numbers listed below for a Return Material Authorization RMA number Meriam Process Technologies 10920 Madison Ave Cleveland OH 44102 Ph 216 281 1100 FAX 216 281 0228 E mail sales meriam com Web www meriam com Or contact our sales representative TetraTec Instruments GmbH Gewerbestr 8 71144 Steinenbronn Deutschland Tel 497157 5387 0 Fax 497157 5387 10 Internet www tetratec de Email info tetratec de All M203 Altimeter Air Speed Testers recalibrated at the factory are returned with certificates of NIST traceability 29 30 User s Manual 9R122 IR Rev 1 May 2010
5. used if your zero drift since shipment will not be accounted for location is below sea level When the User Adj Value is Cursor flashes to the right of 0 3 To zero the manometer using User Adjusted Zero start correct press the PRGM key with the unit turned ON and in Measure Mode The use the following keystroke sequence If an error is made use the back space lt key to move Keystroke Display the cursor back to the incorrect digit Press the UP 1 Apply a known accurate pressure source This may A Or OUN T ATOW KEYS 10 correct the value be true atmospheric pressure from a reference barometer Continue this process until Current xxx xx the display reads as shown 029 50 INHG Press MIN MAX and TARE Top line of display reads at right keys at the same time See ZEROING SOURCE Figure 1 above Bottom line of display reads Press the PRGM key to enter Zeroing is complete when unit REF TO ABS ZERO the final value returns to Measure Mode Press A or V arrow key Bottom line of display reads until desired zero function is USER ADJ ZERO shown on the bottom line User s Manual 9R122 IR Rev 1 May 2010 Note that the User Adjusted Zero feature will not accept entries in altitude units FEET or METERS When the current engineering unit is FEET the User Adjusted Zero function will automatically prompt for an entry in Inches of Mercury 0 C When the current engine
6. R122 IR Rev 1 May 2010 Data Logging Data Logging can be used to record pressure measurements Two record modes are supported automatic and manual In automatic mode a pressure value is captured every 5 seconds for 20 minutes resulting in 240 stored values In manual mode a pressure value is captured each time the PRGM key is pressed up to 240 values The data collected during a logging session can be viewed upon completion Keystroke Display 1 From the Measure Mode Top line reads PROGRAM press the PRGM key MODE and bottom line reads UNITS SELECT 2 Press the up arrow key Bottom line reads DATA five times LOGGING 3 Press the PRGM key Top line reads DATA LOGGING and bottom line reads RECORD 4 Press the PRGM key Top line reads RECORD MODE and bottom line reads AUTO or MANUAL 5 Press the PRGM key at Top line reads AUTO to start automatic RECORDING X and logging or at MANUAL to bottom line reads XX XX start manual logging mode UNITS AUTO records value every 5 seconds Manual records value each time PRGM key is pressed 6 To stop recording values Top line reads DATA at any time press the LOGGING and bottom akey line reads RECORD 7 To access recorded Top line reads DATA values press the 4 key LOGGING and bottom line reads VIEW 8 To view recorded Top line reads DATA values press the PRGM LOG
7. SELECT and bottom line shows current engineering unit 3 Press the Aor V arrow Top line reads UNITS key until ALT IAS is SELECT displayed Bottom line reads ALT IAS 4 Press the PRGM key Top line reads UNITS SELECT and bottom line reads ENGLISH 5 a If ENGLISH units are Top line reads UNITS desired press the PRGM SELECT and bottom line key reads KNOTS Note For METRIC units Go To the altitude unit FEET is associated with Knots 5 b If KNOTS unit are desired Go To Step 7 For MPH units Go To Step 5 C 5 c If MPH units are Top line reads UNITS desired press the Aor V SELECT and bottom line arrow key until MPH is reads MPH Note the displayed altitude unit FEET is associated with MPH User s Manual 9R122 IR Rev 1 May 2010 6 If METRIC units are Top line reads UNITS desired press the Aor V SELECT and bottom line arrow key reads METRIC Units are set to METERS and km h 7 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT 8 Press the lt key Manometer returns to Measure Mode displaying Altitude Important Notes 1 2 Altitude is the default measurement when ALT IAS Mode is active If ALT IAS Mode was active upon manual or automatic shut off ALT IAS Mode will be restored upon cycling power and altitude will be displayed When th
8. User s Manual 9R122 IR Rev 1 May 2010 M203 Altimeter Indicated Air Speed Tester USER S MANUAL Hs outs precision A wi manome Meriam Process Technologies M203 Altimeter Air Speed Tester is a microprocessor based pressure sensing device used to measure pressure up to 900 mm Hg relative to absolute zero When used in Pressure Measure Mode pressure can be displayed in a variety of engineering units Select the ALT IAS engineering unit and the M203 converts to Altitude Mode for checking altimeter instruments Pressing the TARE button from Altitude Mode changes the M203 to Air Speed Mode for checking air speed instruments A timed leak test function is available for Pressure Altitude and Air Speed Measure Modes Other features include a Min Max capture selectable damp rates and field re calibration A meriam process technologies a Scott Fetzer company User s Manual 9R122 IR Rev 1 May 2010 Table of Contents User Interface nencen iae a a 1 1 Keypad Functions cecceeeseeseceeeeeeeseeeeeeeeeeeaeeseaeeeeeeees 1 ON OFF amp BACK q KEY 0000 ceeceecceecceeeeeeeeeeeeeeeeeeeeneeneeees 1 MIN MAX amp UP A KEY 0 cceeeccceccceeceeceeeeceeeeeeeeeeeeaeseaeenaeeaeeeas 1 TARE amp DOWN W KEY 0 ccecceeeeeseeeeeeeeeeeeceeeeeeeeaeeeaeeeaeeeaes 1 PRGM amp ENTER DP KEY 2 c cceseeeeeeeeceeeeeeeceeeeeeeeenaeeees 2 BACKLIGHT KEY esisiecsotgsisigeccuestvass ectlacssies inaari aae 2 2 Zeroing the Ma
9. bration follow the steps below NOTE If the factory default values are acceptable skip this section and proceed to the re calibration 5 Point START procedure Display 1 With unit OFF press and Top line reads RE CAL hold the MIN MAX key turn Bottom line reads EDIT the unit on using the ON OFF key then release 2 Press the PRGM key Top line reads CAL POINT 1 Bottom line displays the cal point value 3 Press the up down arrow Bottom line displays the cal keys to edit the selected point value The cursor flashes digit Use the left right at the first position while the arrow keys to change the value is changed then moves cursor position Note For to the right position when the 0 go directly to step 4 right arrow key is pressed 4 Press the right arrow key Top line reads CAL POINT 2 while on the right most digit Bottom line displays the cal to proceed point value 5 Repeat steps 3 and 4 for Top line reads CAL POINT CAL POINTS 2 3 4 and 5 2 3 4 5 Bottom line displays the cal point value 6 After editing CAL POINT Top line reads RE CAL 5 press the right arrow key Bottom line reads EDIT while on the right most digit to proceed 7 To perform the 5 point Top line reads RE CAL re cal press the up arrow Bottom line START key until START is Continue with 5 Point Re displayed on the bottom calibration procedure at ste
10. e M203 is displaying air speed and power is turned off manually or automatically Program Mode is entered or the Tare key is pressed the unit will be returned to altitude display once power is cycled or the unit is returned to Measure Mode This is a feature designed to prevent errors in air soeed measurement necessary because of the tare function employed on barometric pressure to arrive at air speed measurements Barometric pressure fluctuates with changes in weather conditions Reverting to altitude measurement upon powering down entering Program Mode or pressing the Tare button forces a new tare value to be taken prior to each air speed measurement session User s Manual 9R122 IR Rev 1 May 2010 Damp Rate Select Adjustable exponential type damping is available to steady the display when measuring pulsating pressures The M203 has a range of damping rates 0 1 0 2 0 5 1 2 5 10 or 25 seconds Damping is done by averaging new data from the pressure sensor against previously collected data The microprocessor collects data from the sensor every 0 1 seconds The display updates every 0 5 seconds showing the current 0 1 second pressure reading When set at 25 seconds the display updates every 0 5 seconds with the average of the previous 25 seconds readings Therefore it takes up to 25 seconds from the time pressure is applied until the manometer displays the full scale applied pressure Min Max display updates every 0 1 second
11. e PRGM key Top line reads CONTRAST SELECT Bottom line shows a numerical value left 5 If header is correct press Top line reads PROGRAM backspace key If editing is MODE and bottom line desired proceed to step 7 reads USER INFO SELECT 4 Press the A or W keys LCD lightens or darkens to increase or decrease the depending on the value contrast value A low set 7 Press the up or down Displays a number between number gives maximum arrow keys to set the 0 and 9 a letter from A to Z contrast and a high number correct alpha numeric or a blank space gives minimum contrast value 5 Press the PRGM key Top line reads PROGRAM 8 Press the right arrow Cursor advances one MODE and bottom line key to accept entry space to right reads UNITS SELECT 9 Repeat steps 8 and 9 Returns to Measure Mode until the desired Header is shown If an error is made during the contrast adjustment pressing the lt 10 If an error is made key returns the display to the previous contrast setting press the back arrow key until the cursor is over the incorrect value Follow step 8 to correct Press the right arrow key to advance the cursor without changing values 11 When the Header is Top line reads PROGRAM complete press the PRGM MODE and bottom line key until header accepted reads UNITS SELECT 12 Press the left arrow Returns to Measure Mode key User s Manual 9
12. ering unit is METERS the User Adjusted Zero function will automatically prompt for an entry in Millimeters of Mercury 0 C 3 Program Mode The Program Mode is used to configure the manometer for Measure Mode operation After the PRGM key is pressed in Measure Mode the top line of the display reads PROGRAM MODE The bottom line reads UNITS SELECT Press the v or A arrow keys to scroll through the Program Mode to the desired register The configurable registers found in the Program Mode are Units Select Damp Rate Select User Info Select Contrast Select Data Logging Leak Test and Exit Press the PRGM key to select any of these configurable registers The manometer can be put into Program Mode at any time during Measure Mode operation by pressing the PRGM key If Lockout is set the correct code must be entered when prompted see the User Info Lockout section of this manual for more information on Lockout Units Select User s Manual 9R122 IR Rev 1 May 2010 The standard engineering units available on the M203 are Inches of Mercury at 0 C in Hg 0 C absolute Millimeters of Mercury at 0 C mm Hg 0 C absolute PSI absolute Mbars absolute Bars absolute kPa absolute Torr absolute ALT IAS selecting this unit gives access to English knots MPH and Feet or Metric km h and Meters units To change the engineering units the manometer should be ON and in Measure Mode The
13. ference temperature for these units in the M203 is 0 C 1 point within upper 50 of Full Scale 5 point nominal values of 0 25 50 75 amp 100 of Full Scale and restore factory default re calibration options are offered For the 5 Point re calibration points 2 3 and 4 can be adjusted within 1 of reading around the nominal values Point 5 can be adjusted within 1 of reading around nominal Point 1 is fixed at zero For example for a 900 mm Hg Abs sensor nominal 17 PSIA Point 2 25 can be edited form 216 to 234 mm Hg Abs Point 5 100 can be edited from 891 to 900 mm Hg Abs The unit can only be re calibrated if the calibration points are within 5 times the accuracy of the original factory calibration e g 0 05 accuracy the point limit is 0 25 of Full Scale If the re calibration procedure generates a new value outside this limit the procedure will fail In this case the unit would need to be returned to the factory for service Once a re calibration has been performed either 1 point or 5 point the unit will continue to allow future re calibrations only with that type of re calibration In order to enable the other re calibration type the user must first restore the re calibration data to the factory defaults 21 User s Manual 9R122 IR Rev 1 May 2010 RE CALIBRATION 1 Point EDIT and START To perform a 1 point re calibration apply a pressure between 50 and 100 of Full Scale and then
14. follow these steps Keystroke Display 1 With unit OFF press and hold the MIN MAX key turn the unit on by pressing the ON OFF key then release MIN MAX 2 Press the up arrow key until START is displayed on the bottom line 3 Press the PRGM key 4 Press the PRGM key 5 Press the up down arrow keys to edit the selected digit Use the left right arrow keys to change the cursor position Value entered must be 50 100 of FS 6 Press the right arrow key while on the right most digit to proceed 7 Apply the input pressure indicated using an appropriate reference standard press PRGM key Top line reads RE CAL Bottom line reads EDIT Top line reads RE CAL Bottom line reads START Top line reads RE CAL START Bottom line reads 1 POINT Top line reads CAL POINT and bottom line displays the cal point value Bottom line displays the cal point value The cursor flashes at the first position while the value is changed then moves to the right position when the right arrow key is pressed Top line reads APPLY Bottom line displays the CAL POINT value Top line reads RE CAL Bottom line reads START Manometer has been recalibrated 8 Press the left arrow Returns to Measure Mode key 22 User s Manual 9R122 IR Rev 1 May 2010 RE CALIBRATION 5 Point EDIT To edit the calibration points for a 5 Point re cali
15. he unit off It also serves as a backspace key when editing in the Program Mode The key takes the user out of a programmable register without changing the previous setting Pressing this key repeatedly will return the user to the Measure Mode and then shut off the manometer MIN MAX amp UP A KEY In the Measure Mode activates the Min Max function of the manometer When activated the minimum value is displayed on the upper left of the display and the maximum value on the upper right This key also deactivates and resets this function The 4 key is used to scroll through the programmable registers when the unit is in the Program Mode Once a programmable register is selected the 4 key can be used to edit that register TARE amp DOWN VW KEY In the Pressure Measure Mode toggles on off the Tare function The Tare function nulls the applied pressure and sets the display value to 0 With Tare activated the letter T appears in the lower left of the display In the ALT IAS Measure Mode selected from Program Mode under Units Select menu the Tare button toggles between ALTITUDE function and AIR SPEED function The v key is used to scroll through programmable registers when the unit is in Program Mode Once a programmable register is selected the w key can be used to edit that register User s Manual 9R122 IR Rev 1 May 2010 PRGM amp ENTER gt KEY Puts the manometer into the Program Mode from the Measure Mode When i
16. ifold when installing user s 1 8 NPT fitting Do not tighten the fitting without using a wrench on the pressure manifold Failure to use a wrench on the manifold will damage the plastic enclosure and void warranty No torque should be applied to the manifold with respect to plastic enclosure 26 User s Manual 9R122 IR Rev 1 May 2010 Battery Type 4 each AA alkaline Battery Operation gt 100 hours continuous use 1 year shelf life auto power off programmable at Disabled 10 20 30 60 or 90 minutes Enclosure 6 9 x 3 8 x 2 3 Polycarbonate Permanently Static Dissipative ESD Protection Enclosure with Boot 7 2 x 4 2 x 2 5 Rating IP 40 Certification Safety Warnings Note the following cautions and requirements e Substitution of components may impair operation and safety e Disconnect power before servicing e To prevent unsafe conditions gt DONOT mix old batteries with new or mix batteries from different manufacturers gt DONOT replace batteries in potentially hazardous atmospheres gt DONOT operate in potentially hazardous atmospheres e User must use a wrench on the pressure manifold when installing user s 1 8 NPT fitting Do not tighten the fitting without using a wrench on the pressure manifold Failure to use a wrench on the manifold will damage the plastic enclosure and void warranty No torque should be applied to the manifold with respect to plastic enclo
17. imes reads ENTER TO SELECT 4 Press the right arrow Bottom line shows the old key then press the up or Lockout Code The cursor down arrow keys to flashes at the first change the first digit Press position while the value is the right arrow key to changed the cursor proceed moves to the right position once the right arrow key is pressed 5 Press the right arrow Top line reads LOCKOUT key when the desired code CODE and bottom line is set Lockout is activated reads ENTER TO SELECT 6 Press the left arrow Returns to Measure Mode key twice User s Manual 9R122 IR Rev 1 User s Manual 9R122 IR Rev 1 May 2010 May 2010 Header Name Contrast Select Follow the steps below to edit the Header Name The Contrast Select register allows the user to adjust the character contrast of the LCD display to provide the best 1 From the Measure Mode Top line reads PROGRAM visibility for the ambient light conditions press the PRGM key MODE and bottom line reads UNITS SELECT To adjust the contrast follow these steps 2 Press the up arrow key Bottom line changes to Keystroke Display twice USER INFO SELECT number press the PRGM key MODE and bottom line reads UNITS SELECT Bottom line reads times CONTRAST SELECT 4 Press the up arrow key Top line reads HEADER five times NAME and bottom line reads MERIAM The cursor flashes at bottom 3 Press th
18. ison purposes and should not be used for real pressure measurement as any zero drift since shipment will not be accounted for 3 User Adjusted Zero This method allows the user to enter any pressure value when a known reference is applied for example the local barometric pressure reading The manometer will compare its actual measured value with the entered value and calculate a new zero reference based on the offset 1 To zero the manometer using Referenced to Absolute Zero start with the unit turned OFF and use the following keystroke sequence User s Manual 9R122 IR Rev 1 May 2010 1 Press ON OFF button The display briefly shows the header name and full scale range in the last engineering units selected The manometer then goes into the Measure Mode showing the pressure and engineering unit 2 Connect the M203 to a vacuum source capable of 100 microns absolute or less 3 Pull a full vacuum Display should read close to zero See note on next page 4 Press MIN MAX and Top line of display reads TARE keys at the same ZEROING SOURCE Bottom line time See Figure 1 of display reads REF TO ABS below ZERO 5 Press the PRGM key Top line of display reads ZERO IN PROGRESS while bottom line counts down from 9 Zeroing is complete when unit returns to Measure Mode NOTE The M203 can be zeroed only if the new applied zero is within 1 FS of the original factory calibration zero If
19. key 1 and bottom line displays the value Continue pressing the 4 key to view all values 9 Press the key 3 Returns to Measure Mode times User s Manual 9R122 IR Rev 1 May 2010 The Auto Shut Off timer is disabled for Data Logging sessions Be sure to end the session to re enable the Auto Shut Off timer User s Manual 9R122 IR Rev 1 May 2010 Leak Test The Leak Test feature allows the user to determine the leak rate in the pneumatic system being monitored Once configured Leak Test monitors the measured pressure altitude or air speed over time and displays the leak rate in units per minute at the conclusion of the test The maximum configurable leak test period is 1440 min 1 day Pressing any key during the leak test aborts the test To enable Leak Test follow these steps Keystroke Display 1 From the Measure Mode Top line reads press the PRGM key PROGRAM MODE and bottom line reads UNITS SELECT Bottom line reads LEAK key twice TEST 3 Press the PRGM key Top line reads LEAK TEST and bottom line reads CONFIGURE Top line reads Leak Test Period amp bottom X X MIN 5 Use the up down amp right Bottom line reads desired keys to input test period period Ex 20 0 MIN 6 Press the PRGM key Top line reads LEAK TEST and bottom line reads CONFIGURE 7 Press the up arrow key Top line reads LEAK once TEST and b
20. n follow these steps Display 1 Press the PRGM key 2 Press the PRGM key 3 Press the A or V arrow key until desired engineer ing unit is displayed 4 Press the PRGM key to select the engineering unit 5 Press the V arrow key Bottom line reads EXIT 6 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT Top line reads UNITS SELECT and bottom line shows current engineering unit Engineering units on bottom line of display change Top line reads PROGRAM MODE and bottom line reads UNITS SELECT Display returns to Measure Mode in new engineering unit User s Manual 9R122 IR Rev 1 May 2010 ALT IAS Altitude Indicated Air Speed Mode The model M203 is capable of displaying altitude feet or meters based on U S Standard Atmosphere 1962 tables and air speed knots MPH or km h The ALT IAS Mode is selected from Program Mode in the Units Select menu Once ALT IAS Mode is selected the M203 s default measurement is altitude Pressing the Tare key nulls the prevailing barometric pressure and converts the display to air speed indication To revert back to altitude the Tare key is toggled again To set up the M203 for ALT IAS Mode use the following steps 1 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT 2 Press the PRGM key Top line reads UNITS
21. n the Program Mode pressing this key selects the programmable register to be edited with prompt for password if Lockout is set After the register has been edited pressing the PRGM key enters the new setting into the manometer s non volatile memory This key also acts as a forward space gt key when editing user inputs such as the header name BACKLIGHT KEY The BACKLIGHT key represented by the standard light bulb symbol toggles the display backlight between on and off User s Manual 9R122 IR Rev 1 May 2010 2 Zeroing the Manometer The M203 Precision Smart Manometer is a stable and precise instrument However on occasion the M203 should have a new zero taken This is done to remove zero drift that can occur since the manometer was last zeroed The M203 can be zeroed only if the new applied zero is within 1 FS of the original factory calibration zero This prevents accidental zeroing at atmospheric pressure or other relatively high pressures If outside this limit a ZERO RANGE ERROR message appears and the manometer will not zero The M203 provides three mechanisms for re zeroing 1 Referenced to Absolute Zero This traditional and preferred method takes a snapshot of the measured pressure when a vacuum of less than 100 microns Absolute is applied to the sensor 2 Factory Zero This method restores the calibration curve to the original zero taken at the factory Note that this feature is intended for compar
22. nometer eeeeeeeeeceneeeeneeceeeeceeeeeeaeeseneeeees 3 3 Program MOTO rca aE 7 UNITS SO lO Chis siececiectiestdeardiessedia tac aiaalstyataiaetelaciacentuegiande dicate 8 ALT IAS Altitude Indicated Air Speed Mode 9 Damp Rate Select cecceeesceceneeceneeceeeceaeeseaeeseaeeeeaeeenaeeesas 11 User Info Select Accuracy SW version Mfr date SN 12 Auto Shut Off 2 ceeceeeceecceeeeeeeeeeeeaeeaeeseeeeeeeeeeeeeeeeeteeeneeeees 13 Lockout Selot esris ni ennea EnA TEA REE 14 Header Name is iskeiieiststeni caascssansandliensstenee 15 Contrast Select i t cenit ani Gena aenainies 16 Data Logging 0 ceeeceeeeeeeeeeeeeeeeeeaeeeeeeeeaaeeeaaeeeeaeeeaaeeeaaeeseaeenaas 17 keak TeSt ne anaana a aa a aeaa 19 R Calibration asin ae aee aieia a eR 21 RE CALIBRATION 1 Point EDIT and START 0 006 22 RE CALIBRATION 5 Point EDIT aseeseen eeens 23 RE CALIBRATION 5 Point START seese 24 RE CALIBRATION Restore Factory Defaults 00 25 OPSCIICATIONS seinri aaa 26 Certification Safety WarningS ccecseeeseeeeeeeeeeeeneeenaeeeeaeeeaes 27 Changing the Batteries 0 0 00 eeceesseeseceeneeeeneeeeeeeeaeeeaeeeaeeeaas 27 Contact Informati n 29 User s Manual 9R122 IR Rev 1 May 2010 User Interface 1 Keypad Functions ON OFF amp BACK 4 KEY Turns the manometer on and enters the unit into the Measure Mode Pressing the key while in the Measure Mode turns t
23. ns to set OFF and bottom line reads AUTO SHUT OFF later in ENTER TO SELECT this manual 8 Press the A arrow key Top line reads LOCKOUT See instructions for using CODE and bottom line reads LOCKOUT later in this ENTER TO SELECT manual 9 Press the A arrow key Top line reads HEADER See instructions for editing NAME and bottom line reads the Header later in this MERIAM The cursor manual flashes at bottom left 10 Press the lt arrow Top line reads PROGRAM key to go back to USER MODE and bottom line INFO SELECT screen reads USER INFO SELECT User s Manual 9R122 IR Rev 1 May 2010 Auto Shut Off Enabling the Auto Shut Off feature allows the manometer to turn itself off after a user selected period of keypad inactivity Selectable options include DISABLED 10 Minutes which is the factory shipped default 20 Minutes 30 Minutes 45 Minutes and 60 Minutes Disabling this feature limits the manometer to being turned off by using the ON OFF key only To configure auto shut off follow these steps Keystroke Display 1 Follow steps 1 6 in the Top line reads AUTO User Info Select table SHUT OFF and bottom line reads ENTER TO SELECT 2 Press the PRGM key Top line reads AUTO then the up or down arrow SHUT OFF and bottom keys until the desired shut line toggles to off time is shown DISABLED 10 20 30
24. ottom line reads PRGM TO START 8 Press the PRGM key Top line displays MIN MAX pressure values at left right Bottom line reads the current pressure value and units At end of test period top line displays the leak rate in units per minute Bottom line shows the current pressure reading 9 Press the PRGM key Return to Measure Mode User s Manual 9R122 IR Rev 1 May 2010 The Auto Shut Off timer is disabled for Leak Test sessions Be sure to end the session to re enable the Auto Shut Off timer 20 User s Manual 9R122 IR Rev 1 May 2010 Re Calibration The Manometer can be re calibrated in the field for zero span and linearity The proper primary standards must be available prior to calibrating the Manometer These standards should meet the accuracy requirements for your company or industry Meriam Process Technologies follows the guidelines established by ANSI NCSL Z540 1 1994 which requires that the primary standard be 4 times more accurate than the unit under test The re calibration is not intended to replace the Factory Lab Calibration Procedure It is intended to correct the curve fit if the actual sensor characteristics change slightly over time For sensors up to 200 PSI Meriam recommends a 0 0015 of reading deadweight tester If calibrating using inches or millimeters of mercury be sure to match the reference temperature of mercury in both the M203 and the deadweight tester The re
25. outside this limit a ZERO RANGE ERROR message appears and the manometer will not zero Contact the factory for support in this case User s Manual 9R122 IR Rev 1 User s Manual 9R122 IR Rev 1 May 2010 May 2010 Press the PRGM key Top line of display shows the current non zero compensated pressure value Bottom line of display shows the same value along with the engineering unit 2 To zero the manometer using Factory Zero start with the unit turned ON and in Measure Mode Then use the following keystroke sequence Keystroke Display Press any of A or V arrow Top line of display continuously key or the PRGM key to updates Bottom line of display begin editing data is ready for editing the first character location is blinking Press MIN MAX and Top line of display reads TARE keys at the same ZEROING SOURCE Bottom time See Figure 1 line of display reads REF TO above ABS ZERO Press A or V arrow Bottom line of display reads Example set current pressure value to 29 5 In Hg 0 C Abs Press the A or V arrow key Current xxx xx to set the first digit to 0 Oxx xx INHG key until desired zero FACTORY ZERO function is shown on the bottom line Using the A arrow key the character sequence is 0 9 NOTE this feature is intended for comparison purposes only negative decimal point and should not be used for pressure measurement as any The sign is
26. p 3 line on next page OR OR To exit without Returns to Measure Mode performing the 5 point re cal press the left arrow key 23 User s Manual 9R122 IR Rev 1 May 2010 RE CALIBRATION 5 Point START To begin the 5 point re calibration procedure turn the unit OFF and follow the steps below 1 Press and hold the Top line reads RE CAL MIN MAX key and turn the unit Bottom line reads EDIT on by pressing the ON OFF key 2 Press the up arrow key until START is displayed on the bottom line 3 Press the PRGM key Top line reads RE CAL Bottom line reads START Top line reads RE CAL Bottom line reads 1 POINT 4 Press the up arrow key until Top line reads RE CAL 5 POINT is displayed on the START bottom line Bottom line reads 5 POINT 5 Press the PRGM key Top line reads POINT 1 ZERO Bottom line displays live applied pressure 6 Vent P1 and P2 ports to Unit takes new zero Top atmosphere and line reads POINT 1 simultaneously press the ZERO MIN MAX and HOLD keys Bottom line displays live then release applied pressure POINT 1 has been taken 7 Press the right arrow key Top line reads POINT 2 while on the right most digit to APPLY proceed Bottom line displays the cal point value to apply 8 Apply the indicated cali Top line reads POINT 3 bration point pressure using
27. s To set the damp rate Keystroke __ Display 1 Enter Program Mode by Top line reads PROGRAM pressing the PRGM key MODE Bottom line reads UNITS SELECT RATE SELECT 3 Press the PRGM key Top line reads DAMP RATE SELECT Bottom line shows current value 4 Press the A or W keys Bottom line shows damp until the desire damp rate rate settings in seconds is displayed on the bottom line 5 Press the PRGM key Top line reads PROGRAM MODE Bottom line reads UNITS SELECT 7 Press the PRGM key Returns to Measure Mode User s Manual 9R122 IR Rev 1 May 2010 User Info Select Accuracy SW version Mfr date SN The User Info Select registers are designed to provide the user with information on the hardware and software in the manometer This register provides read only information on the sensors accuracy software version date of manufacture and serial number It also allows the user to edit the Auto Shut Off Lockout and Start Up Header Name features To access the User Info Select registers follow the steps below To configure a User Info Select register follow the steps shown on the following page 1 From the Measure Mode Top line reads PROGRAM press the PRGM key MODE and bottom line reads UNITS SELECT 2 Press the A arrow key Bottom line changes to twice USER INFO SELECT 6 Press the A arrow key Top line reads AUTO SHUT See instructio
28. sure Changing the Batteries The manometer is powered by four 1 5 volt AA size batteries When the output of the batteries under load drops the display will alternate between LOW POWER DETECT and REPLACE BATTERY Low power may affect performance The unit should not be used to measure pressure in this condition All four batteries should be replaced To replace the battery locate the battery compartment at the bottom rear of the manometer as shown here 27 User s Manual 9R122 IR Rev 1 May 2010 Remove the two screws on either side of the battery cover by turning them counterclockwise until the fully disengaged from the manometer base Lift the cover from the back of the unit Remove the batteries by pulling the positive side first straight out of the battery compartment Note the positive and negative battery polarity markings at the bottom of the compartment as shown here To install the four batteries 1 Make sure polarity of battery matches the markings in the compartment 2 1st place the end of the battery into the bottom of the battery slot 3 Then push in end of the battery until it is seated in the bottom of the battery slot The battery compartment has stand offs molded into the side of the compartment When a battery is installed with the polarity reversed the stand offs prevent the negative battery terminal from contacting the positive terminal in the battery compartment The
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