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MP Series User Manual - Pentair Environmental Systems

1. 28 8 2 Electrical COG MCI T L 28 8 3 e 28 8 3 1 Replacing Reference Protection RING cccccssssccccsssecccceeseseccesueececseaseceesueecessueesceesaeaeeeeessuaeeeessageeeeees 29 8 3 2 i re gelo TEE TET E E TOTO 29 8 3 3 Electrode T EREE EEEE EAE ENEAN 29 8 4 ORP Oxygen Reduction Potential 5 E deae ce 30 8 4 1 Replacing Reference Protection 31 8 4 2 TTE E TT RN 31 8 4 3 Electrode replacement Ce Exe eo ENTE ERO SLOPE XY OE Eee ree er 31 8 5 juge cT vr 32 8 5 1 Wiper Replacement 32 8 6 Optical Dissolved 32 9 User Calibration and Testing cus FOREVER RII ORI UY 33 9 1 PSS SUS ir EE rt 33 9 2 El ctrical ERE NOCET 34 9 3 E NN A E EE 36 9 4 s
2. 37 9 5 TO RTT CTTE UO HH 38 9 6 CT 39 10 Modbus MOLES M 41 10 1 E 41 10 2 SHOW registers TR 42 10 3 Codes and m 42 10 4 Integer and Floating Point 43 10 5 SAID AMM AC 43 10 6 rol RH ETT Tm 43 10 7 Updating Register Data iesiri eerie Er 43 10 8 Command Set Modbus Function 44 10 9 Command Set User Function CodeS ETENEE REE ENERETTEN 44 10 10 Exception RESPONSES TARE 44 11 Specii ea NON M E E ENTEN DUE 45 12 CONCACE US 47 PENTAIR ENVRONMENTAL SYSTEMS MP SERIE
3. SYSTEMS MP SERIES SENSOR USER MANUAL
4. 12 3 ADDIICAUIOnS UND MN COD ME EUER 13 4 Instrument DETANS 5 9 39 290 92 2 22092008920223002280188 92000950805 a SERRE 14 4 1 1 SENSO P1 MT THTEC PPH 14 4 1 2 RS MOND SUS 15 4 1 3 Mechanical Speci icatiO NS TD D OCT 15 4 2 Options and CCC SSO Sas os Emi DE NUI IU Dd sd PURI UM DIDI tM D DEOR 16 4 2 1 Closed Venting System 16 4 2 2 POMC IN COINS ccs sae Seen 16 4 2 3 MUNG 16 4 2 4 SMO e 16 4 2 5 lude ol RR u TET 17 4 2 6 STIS OI BOOY RR RET O 17 4 2 7 Senses FCA PE OD D 17 4 2 8 Optional Serial Output SDI Adapter 18 4 3 On Board Battery OU SIG stt v qu actam tud niat Tor dE RC 19 4 3 1 Battery Me hl UC Sl Du cose reis 19 4 3 2 Important Battery Information rrr rep ear ep ao aru E IUe Py vP aba Va pa Id pas Ve 20 4 3 3 Battery WANING PINO MINE DIM PRI ESO 20 4 4 Sensor Factory Calibration
5. Channel Name Current Value Units Last Logged Value Monitor Ext Battery 11 7 Volts 11 7 Start Logging Temperature 25 9 Celsius 25 9 Pressure Metres EC RAW Set Clock EC NORM gl uS cm Collect Data Clear Memory Salinity 0 1 psu Setup Sensor pH pH Turbidity NTU User Calibration Memory Used Bytes Add Note Memory Used Percentage View Monitor Data Sensor status Not Logging Not Logging IE Tx EHI Fc NNI The easiest way to confirm which channels are enabled and what order the data will be returned via SDI 12 is to view the SensorMate monitor screen By default the data returned via SDI 12 will be the same channels and in the same order as what is displayed in the SensorMate monitor screen Special SDI 12 commands allow the user to setup the SDI 12 to suit their application which include changing the output order how many numerals after the decimal point is returned and activate the Turbidity wiper See SDI 1000 user manual for detail NOTE Memory Used and Memory Used 96 is not returned via SDI 12 18 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 4 3 On Board Battery Housing The MP Series Sensor may be factory fitted with a non rechargeable long life battery pack This enables the sensor to be deployed at remote sites completely independent of above surface power supplies no cable connection and allows for discreet applications It also functions as a backup power supply in
6. Long term stability Resolution Measurement Technique Sensor Range Resolution Accuracy Measurement Technique Sensor Range Resolution Accuracy Measurement Technique Standard EC ranges available Other Ranges are available Overall Accuracy combined linearity hysteresis and repeatability Resolution Measurement Technique Standard ranges available factory set Resolution Linearity Temperature Coefficient Calibration Standard PENTAIR ENVIRONMENTAL SYSTEMS gt Ceramic Capacitance Sensor Gauge 2 5 5 10 20 40 75 100 m Absolute 20 40 75 100m 4 times Full Scale range Yes Calibration charge may apply refer sales office 0 1 Full Scale range 0 2 full scale per annum Depth 0 001 m Temp 0 05 C Gel filled glass electrode with internal Ag AgCl reference Field replaceable electrode 0 14 pH 0 001 pH 0 2 pH Platinum electrode with internal Ag AgCl reference Field replaceable electrode 1000 mV 1000 mV 1mV 296 full scale Toroidal Conductivity 0 1000 uS cm 0 2000 5 0 5000 p S cm 0 10000 pu S cm 0 20000 uS cm 0 60000 uS cm 0 70000 uS cm Yes calibration charge may apply refer sales office 1 full scale range 115 90 Infra red 1507027 100 NTU 400 NTU 1000 NTU 0 1 NTU 0 2 NTU 0 3 NTU t 196 1 3 0 2 C 0 1 C TOC APS AEPA polymer solutions 0 100 NTU 400 NTU 1000 NTU MP SERIES SENSOR
7. gt PENTAIR PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL FOR MP4 amp MP65 2 CONTENTS 1 MONCTON me 4 1 1 Svstem DSS CHIU O ieee E vecevaseaitaraes iacaustevesauadennaie RU MERI auswaraeeunpavataaedavags 4 1 2 gre MR X 5 1 3 Unpacking and 6 1 4 Sera IMM S oaa EE E EE EEEE E E EEE EEES E NEREA 6 1 5 Warran FO REPRISE 7 1 6 Factory Service amp REPAINT ic comcnsneswacnencntwenteaanepoatannesiaeaementuesensnivatanacotwasaenenepdacuenesvaenentanebnanesivacnuns ES PURERAA RETENAR ERA 7 2 Sensor Overview by Parameter 8 2 1 are cca eae 8 2 1 1 Absolute r TET 8 2 1 2 WO 5s 9 2 2 Electrical Conductivity Toroidal Sensing Head cccccccccssssssseecceeeeeesseeccceeeueeseeeceeesueuegsseeeeessaueeeeeeeseaegees 9 2 3 1 Me T HQ 10 2 4 ORP 11 2 5 OUI GNI AM mm 11 2 6 Optical Dissolved Gee rim Due valitura ibl NEU Co v ode tate iau 11 2 6 1 Principal OF EE 12 2 6 2 Fluorescence CUBO ETE ER YN ROI
8. 0 1 of the full scale range of the sensor 1hPa 0 010216 m H20 20 C 5 This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 0 1 FS The accuracy and calibration of the barometer should be considered when making the comparison 33 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 34 Re Calibration Method Using Digital Pressure Calibrator or Dead Weight Tester E ps 10 11 12 9 2 Ensure the sensor is clean and dry Connect the sensor to the calibrator using an appropriate BSP fitting Provide power to the sensor connect sensor to a PC with appropriate communication cable Run SensorMate In SensorMate select User Calibration from the SensorMate main menu Select the Pressure Channel Select 2 point Span and Offset Calibration Type Apply the low pressure input to the sensor from the calibrator Typically this will be zero for a gauge sensor The screen should display a window to allow entry of the new low value type in the new value to be read by the Sensor for zero e g 0000 00 click OK Apply the high pressure input to the sensor from the calibrator Typically this will be full scale for a gauge sensor The screen should display a window to allow entry of the new high value type in the new value to be read by the Sensor for the high value e g 0005 00 If the calibrator cannot set
9. Optional Battery Pack 19 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 20 hand 4 3 2 Important Battery Information The type of battery used in the battery pack is Li Mn02 Lithium Thionyl Chloride 3 6V AA cells A total of nine batteries are required for each sensor battery pack This configuration supplies a maximum 10 8 volts at 5 2A Hr and a useful field life depending on sensor type and logging frequency of up to 12 months Replacement batteries are available from Pentair Environmental Systems Note Standard AA lithium batteries Duracell or Energiser Type are NOT suitable for use in the sensor 4 3 3 Battery Warnings e Do not dispose of batteries in fire dispose of in appropriate manner Do not short circuit e Do not expose to water e Do not crush or puncture e not charge e Do not over discharge To maintain the maximum possible life of the cells before replacement it is strongly recommended that an external power supply is connected to the sensor when downloading data The power drawn when downloading is at its greatest level therefore battery depletion will be much more rapid Battery life will depend on the battery type as well as the frequency of logging Connection to a computer will drain the battery supply more quickly due to the higher current imposed by the RS232 serial data communications and will considerably reduce battery life An additional internal lithium battery maintains
10. log and covers a scale from 0 acid to 14 alkaline where H 15 the hydrogen concentration in solution at ordinary temperatures E g pH of water 2 H OH The concentration of each type of ion is 10 7gm molecule litre and hence the pH of pure water is pH log 10 7 7 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 11 2 4 The principle means of detection is by measuring the difference in potential between an inert indicator electrode and a reference electrode At redox equilibrium the potential difference between the ideal indicator electrode and the reference electrode equals the redox potential of the system Reactions involving ions are both pH and Eh mV dependent therefore chemical reactions in aqueous media can often be characterised by pH and Eh acting together with the activity of dissolved chemicals The MP Series sensor probe uses a combination Platinum ORP and reference electrode in the one body This electrode is field replaceable by the user Electrodes made of platinum are most commonly used for Eh measurements The standard hydrogen reference electrode is fragile and impractical for routine field use The Greenspan ORP sensor uses a silver silver chloride electrode and these are commonly used The reference consists of a specially coated wire in a salt filled cavity This cavity makes electrical contact with the outside aqueous solution through a small porous wick A common
11. 108 109 110 111 Pressure 112 5 113 0 114 115 116 117 EC RAW 11810 119153 120 121 122 123 EC NORM 124 11 125 53 126 127 128 129 Salinity 130 13 131 61 132 133 134 135 pH 136115 137 31 138 139 140 141 Turbidity 142 17 143 45 144 145 146 147 Each channel mapped to Modbus take 6 registers starting from 100 see table below Description decimal 001xx 0 Address 001xx 2 001 4 i 41 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 42 The sensor s configuration file contains the information of which channels are mapped to these Modbus registers 10 2 Show registers button There is also a Show registers button that provides other information that is also written to holding registers Modbus registers Register 00100 0 1 Char Char UITG UITG UITG UCSB UITG UITG Structure UITG UITG Description Firmware version Firmware version Scanning current values flag Number af enabled monitor channels Logging status Memon capacity 4 bytes Memon used 4 bytes Serial number Timestamp year CY Timestamp manth CY Timestamp day CY Timestamp hour CY Timestamp minute LY Timestamp seconds Channel current value stucture Channel number Units code 10 3 Codes and Terminology The following list of codes abbreviations and terms may be used in t
12. ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 5 The sensor includes an internal data logger to provide long term data collection at remote sites large memory capacity 4 Mb allows the MP Series Sensor to store data over long periods before being downloaded either locally or remotely by your preferred communications method Communication with the MP Series Sensor is user selectable RS232 or RS422 485 Set up data collection and other user functions are simple to access using the supplied software package Additionally key sensor information and control is available via MODBUS Sensors are also compatible with the optional SDI 12 adapter The MP Series Sensor can be powered using external batteries via the sensor cable or with Greenspan s optional Lithium battery pack which can be fitted as an extension to the sensor body making it a fully self contained measurement and logging system 1 2 Certification The MP Series sensors are assembled and tested in accordance with Greenspan s ISO 9001 Quality Certified System Each Sensor is individually manufactured and certified against a traceable Standard Following calibration the sensors undergo a range of additional control processes to ensure that all specifications are consistent and documented e The instrument is visually inspected marked and labelled e The complete sensor calibration record is archived for reference and batch number information is kept on file for statis
13. SENSOR USER MANUAL 8 3 1 Replacing Reference Protection Ring The reference protection ring can be removed and or replaced with the electrode still in place in the sensor by unscrewing the plastic shroud on the end of the electrode The white protection ring can be slid off the glass electrode 8 3 2 Electrode storage PH electrodes should be stored in such a way to prevent the electrode from drying out A rubber cap is provided with the electrode for this purpose A small amount of liquid should be placed in this cap prior to the cap being placed over the electrode 3M KCI is the preferred storage solution however tap water should be used if not available Soaking in pH 4 buffer solution overnight may restore some electrodes that have been allowed to dry out although some calibration drift can be expected until the electrode is fully re hydrated 8 3 3 Electrode replacement PH electrodes will require periodic replacement How long they last is dependent on the environment and to a lesser extent the cleaning and maintenance In a typical environment electrode life between 1 and 3 years is quite possible The electrode is sealed in its mount with 20 rings on the electrode body The electrode is removed by unscrewing it from the housing Spanner flats are machined on the electrode to assist Take care when handling the pH electrode that it is not handled by the gold contacts Contamination of this area may degrade the perform
14. This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 1 FS Re Calibration Method using the EC loop calibrator While the EC sensor is designed for long term stability it is normal for any electronics to experience some drift over time If re calibration is required QU Qe Ge we AM og Remove the shroud and ensure the sensor is clean and dry Provide power to the sensor connect sensor to a PC with appropriate communication cable Run SensorMate In SensorMate select User Calibration from the SensorMate main menu Select the EC Channel Select 2 point Span and Offset Calibration Type The zero value is read in SensorMate without the loop calibrator The screen should display a window to allow entry of the new low value type in the new value to be read by the sensor for zero eg 0000 00 click OK Loop the EC calibrator wire through the EC head and connect together Enter the value marked on the loop calibrator click OK Re Calibration Method Using EC Calibration Solutions The sensor can be checked by use of known laboratory conductivity standards a thermometer and or a third party EC sensor 9 LU OQ GAL disc ds Ensure the sensor is clean and dry the shroud should be fitted Provide power to the sensor connect sensor to a PC with appropriate communication cable Run SensorMate In SensorMate select User Calibration from the
15. an output in m of water a conversion will need to be calculated and entered click OK Refer to the SensorMate User Manual for further reference NOTE Absolute pressures must be set and entered when calibrating an absolute sensor Electrical Conductivity To maintain high quality control over monitoring programs it is recommended EC calibration is checked at least every 3 6 months If re calibration is required a method is presented here using Greenspan EC Calibrators and using Standard Solutions Alternatively sensors may be returned to an authorised Greenspan agent for re calibration Quick Check Method The following procedures detail a quick method to check the calibration for both full scale and zero using the supplied loop calibrator NOTE For new EC sensors each calibrator is clearly marked with a serial number and non normalised calibration value 1 Remove the sensor from the water unscrew the shroud and dry the EC head and temperature button 2 Connectthe sensor to a PC and run SensorMate 3 Once connected the monitor screen will display the readings The EC value should read Zero 196 of the full scale range of the sensor 4 Place the loop calibrator through the hole in the EC head and plug the connector together PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 35 The non normalised value should read the value marked loop calibrator 1 of the full scale range of the sensor
16. buffer eg 0010 00 click OK 11 Refer to the SensorMate User Manual for further reference 9 4 ORP It is not possible to calibrate Eh electrodes over a range of redox potentials as is done with pH electrodes Instead standard solutions that are stable with known redox potentials for specific indicator electrodes are used to check response There are two main solutions used for measuring redox potentials Light s solution and Zo Bell s solution The table below shows the theoretical potential of platinum ORP electrodes using two different common reference electrodes in the ORP standard Light s solution and Zo Bell s solution The actual potential of the Greenspan electrode in Light s solution is specified as 465mV 10mV Comparison Table Reference Standard Hydrogen Electrode SHE Greenspan Ag AgCl Electrode Light s Solution 675mV 465 10mV ZoBell s Solution 229mV Saturated KCL If the readings obtained are outside the expected values the electrode should be cleaned and or replaced Sensors may be returned to an authorised Greenspan agent for re calibration Quick Check Method 1 Remove the sensor from the water ensure the sensor is clean Dirty electrodes could be a key source of calibration errors ae xu Run SensorMate Provide power to the sensor connect sensor to a PC with appropriate communication cable Place the sensor in a standard
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18. logger data at all times but does not sustain the logging state This battery is not user accessible and will maintain data for up to 10 years If the sensor is fitted with on board internal battery pack option and is to be placed in storage it is recommended that the logger be powered down and lithium batteries in the battery pack be removed To turn off the logger after exiting from SensorMate disconnect the communications cable and unscrew the battery cover This exposes the battery compartment to allow removal of the batteries Removing power will not affect any data remaining in storage so sensors could be downloaded away from the site if required PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 21 4 4 Sensor Factory Calibration Pressure amp EC Sensors The sensor is assembled and calibrated to the required range using Ruska Digital Pressure controllers which are externally calibrated in NATA certified laboratories e Any sensor with EC or pressure parameters is placed in an environmental chamber and subjected to a matrix of temperature and pressure and EC inputs A typical calibration collects data for each individual sensor at 6 pressure inputs 0 20 40 60 80 and 100 96FS and 11 EC inputs 0 10 20 30 40 50 60 70 80 90 and 100 96FS at 6 temperatures 0 10 20 30 40 and 50 deg C A unique calibration curve for the transducers and electronics set is calculated from this data and loaded into the
19. sensor Sensors are supplied with a removable shroud that provides added protection for the electrode This shroud unscrews for cleaning The sensor must be cleaned with the electrode in place The sensor will be damaged by the ingress of water or other solutions into the electrode cavity The electrode should only be removed when it is to be replaced Cleanliness of the sensor and junction is critical for accurate measurement Drift and slow response is often due to unclean sensor electrodes and reference junction DO NOT use abrasive materials To remove inorganic deposits and scale Soak sensor electrode in dilute KCI for an hour Wash well with water and condition in 2096 KCl solution before use To remove solids and organics Wipe the sensor electrode with cotton or tissue soaked in mild non alkaline detergent Wash with water and condition in 2096 KCl before use To remove plated metals from ORP Tips Soak the tip in approx 0 1M nitric acid for 15 20 minutes followed by conditioning in 2096 KCI PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 8 4 1 Replacing Reference Protection Ring The reference protection ring can be removed and or replaced with the electrode still in place in the sensor by unscrewing the plastic shroud on the end of the electrode The white protection ring can be slid off the platinum electrode 8 4 2 Electrode storage ORP electrodes should be stored in such a way to prevent the el
20. sensor size OD x L 47 mm x 250 mm 9 x Lithium AA 3 6Volt Total capacity 5 2 10 8 Over 12 month s remote operation 15 minute data logging Non volatile battery backed RAM with real time clock 4 Mb capacity with user selectable wrap function User definable Metric and Imperial US units 250 000 readings Typically 5 minute data for gt 12 months User selectable from 1 second up to once per day MP47 355 mm x 47 mm 14 x 1 78 MP65 355 mm x 65 mm 14 x 2 5 Optional End Mount Batt Pack 300 mm x 47 mm MP47 550g plus cable weight 665g per 10m length MP 65 650g plus cable weight 665g per 10 m length Acetal ceramic 316 passivated stainless steel polyurethane viton MP SERIES SENSOR USER MANUAL 12 Contact Us ASIA PACIFIC pes apac pentair com 61 1300 797 246 AUSTRALIA New South Wales 268 292 Milperra Rd Milperra NSW 2214 Phone 61 2 9792 0201 Fax 61 2 9772 2960 Queensland 240 Lavarack Ave Eagle Farm QLD 4009 Phone 61 7 3866 7850 Fax 61 7 3260 1916 Western Australia 70 Cleaver Tce Belmont WA 6104 Phone 61 8 9477 1188 Fax 61 8 9479 6727 ASIA 390 Havelock Road 04 01 King s Centre Singapore 169662 Phone 65 6869 8916 USA REST OF WORLD pes us pentair com 1 407 886 3939 NORTH AMERICA 2395 Apopka Blvd Apopka FL 32703 United States Office 1 407 992 5592 Fax 1 866 260 0753 47 PENTAIR
21. whereby moist air from the surface is drawn into the sensor through the vent line This moisture can condense on sensitive electronic components due to warm surface air cooling inside the sensor Sealing the system against exposure to the atmosphere and conditioning the existing air in the vent tube can alleviate this problem Silica desiccant crystals easily absorb moisture thereby drying the air and are used in the closed loop venting system 7CVS 001 For all gauge vented sensors a Closed Vent System must also be fitted pictured left A single 7 5 001 is designed to handle sensor cable lengths up to 70 metres Multiple units may be joined together for greater capacity Please refer to the Engineering Note in the appendix section on the manual for detailed instructions on the installation of the 7CVS 001 Dimensions including filter length x width x height 16cm x 7cm x 5cm 4 2 2 Protective Nose Cones A protective copper nose cone Greenspan Part 492 0241 can be fitted to the pressure transducer end sensor configuration only to inhibit biological or marine growth on the sensor face Similarly Greenspan also offer a Stainless steel nose cone pictured left Greenspan Part 492 0246 4 2 3 BSP Fittings Brass BSP threaded adaptors Greenspan Part 492 0238 can also be fitted to the MP Series Sensor end pressure sensor configuration for connection when monitoring pressure in process applications Such applications m
22. 1 4 Serial Number Checking the Model Number and Range Before installing your Greenspan MP Series sensor check the information on the label is correct to confirm you have received the instrument you have ordered The label will look similar to this For MP47 For 65 MP47 0 14pH 0 xx M OUTPUT RS232 OUTPUT RS232 S N 012345 S N 012345 Please note where sensors have been supplied with two or more parameters the range of each parameter will be noted on the serial number label The ranges may be listed in no specific order The customer is advised to keep a record of the serial numbers in case the sensor is lost or damaged Greenspan keeps records of all sensors sold including a calibration history PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 7 1 5 Warranty Policy Greenspan warrants all new Greenspan products against defects in materials and workmanship for 12 months from the date of invoice Products that prove to be defective during the warranty period will be repaired or replaced at the discretion of Greenspan Under Greenspan warranty conditions it is the responsibility of the customer to cover shipping charges back to the factory Upon repair replacement Greenspan will cover the return shipping charges to the customer This warranty does not apply to products or parts thereof which have been altered or repaired outside of the Greenspan factory or other authorised service centre or p
23. 42 low byte first which is the same as 51 3297 See test code below PC code example CIO 025 last byte from register read ci 0x92 c 2 4 CDS 0x42 first byte from register read float amp c 0 EJ princed is 51 592 10 7 Updating Register Data As per the Modbus protocol data contained in registers is immediately sent on request This may mean that the data sent may not be recent To allow the user to obtain the most current data possible using only Modbus commands a request for data also starts the Get Current Values routine in the sensor where all parameters that are set up in the monitor screen are read Get Current Values for a typical MP sensor would be complete within 6 seconds 5 second warm up time lt 1 second process time When complete the Last Scanned Values are updated To get the most current data a user can read the registers wait until the sensor has a chance to get current values and read registers again 43 PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL Alternatively if the sensor s logging schedule is on the data in the Last Scanned Value registers will be updated according to this schedule e g if a 3 minute scan time is set the data in the Last Scanned Value registers will be no older the 3 minutes when read 10 8 Command Set Modbus Function Codes Func Modbus Function Uses for 3000 S
24. ASCII Function 506750 Wire Colour wo Voe Comms Ground Ground Green Green Ground tve supov Black Rx B RxD Comms Ground Green round ve ek ooo veeerw e comms Ground Gem Half Duplex Half Duplex NOTE Full Duplex where data is sent and received at the same time is not supported 24 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 6 1 Waking sensor MP Sensors are designed to wake on receiving any commands on its communication lines Although it wakes quickly it may miss the first few characters of a command Most generic Modbus communication programs will re try if no valid response is received so this usually causes no problems All in house programs send a Null command to wake the sensor prior to any subsequent commands Communication circuits will switch to a low powered listening mode sleep if there has been no communication activity for 60 seconds 25 PENTAIR ENMRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 26 7 Field Deployment Considerations For applications in harsh environments it is recommended that the optional Acetal casing be specified The sensor head should be periodically inspected for fouling and can be cleaned with fresh water and damp cloth In marine environments crustaceans may need removal at regular intervals The body should always be fully immersed under the water to ensure the electronic module i
25. Check Method 1 Remove the sensor from the water ensure the sensor is clean and dry 2 Place the sensor in clean water so that the sensor is at least 50mm clear of the bottom of the container Provide power to the sensor connect sensor to a PC with appropriate communication cable 4 Run SensorMate Once connected the monitor screen will display the readings The Turbidity value should read Zero 3 of the full scale range of the sensor 6 Place the sensor in a full scale Turbidity solution so that the sensor face is at least 50mm clear of the bottom of the container 7 The Turbidity value should read 3 of the full scale range of the sensor 8 This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 3 FS PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL Re Calibration Method Using Calibration Solutions 1 Ensure the sensor is clean and dry 2 Provide power to the sensor connect sensor to a PC with appropriate communication cable 3 SensorMate 4 n SensorMate select User Calibration from the SensorMate main menu 5 Select the Turbidity Channel 6 Select 2 point Span and Offset Calibration Type 7 Thezero value is read in clean filtered water Sensor should be gently agitated to remove any air bubbles 8 The screen should display a window to allow entry of the new low value type in the new value to be read
26. MP SERIES SENSOR USER MANUAL 9 This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 1 of these readings in different conditions Re Calibration Method Using Calibration Solutions 1 Ensure the sensor is clean and dry 2 There are 2 steps to complete the calibration for an MP sensor with Optical DO the 1 Point Offset zero calibration and the 1 Point Span full scale calibration 3 Connect the sensor with the appropriate communication cable and turn on the DC power 4 Run SensorMate 5 n SensorMate select User Calibration from the SensorMate main menu 6 Select the calibration channel ODO 7 Perform the zero calibration by selecting 1 Point offset in the Calibration Type 8 Place the sensor into a Sodium Sulphite solution and allow 10 minutes to stabilise Ensure the ODO head is fully submerged 9 Click on the Calibrate Channel button 10 The screen should display a window to allow entry of the new low value type in O and click OK once the value has been entered 11 Remove the sensor from the container and rinse it with clean water 12 Perform full scale calibration by selecting 1 Point Span 13 Place the sensor into an aerated full scale and allow to stabilise for at least 10 minutes Ensure the ODO head is fully submerged 14 Click on the Calibrate Channel button 15 The screen should display a window to allow entry of the n
27. S SENSOR USER MANUAL 1 Introduction 1 1 System Description Thank you for purchasing a Greenspan MP Series Sensor Model 47 or MP65 This manual provides a guide to the configuration operation and maintenance of your sensor to provide long term reliable and accurate monitoring The Greenspan MIP Series sensors provide a complete self contained measurement and data logging system for a wide range of environmental water monitoring applications The sensors provide the ability to measure single or multiple water quality parameters up to 4 parameters on the MP47 and 6 parameters on the MP65 within the single sensor providing users the choice to select the parameters which best suits their application Users have a choice of the following parameters e Pressure e pH e Oxygen Reduction Potential e Electrical Conductivity e Temperature e Turbidity e Optical Dissolved Oxygen Customers can choose various combinations of parameters to measure Options available are shown below Inline Option 3 Choose 1 parameter Inline Option Inline Option 1 2 Choose 1 parameter Choose 1 parameter End Sensor Choose 1 parameter MP Mount on MP65 only Must choose or ORP with option of a depth sensor ew eB MP MP BM BM BM BM BM BM BM BM BM BM BM BM Bw BM 4 PENTAIR
28. SensorMate main menu Select the EC Channel Select 2 point Span and Offset Calibration Type The zero value is read in air The screen should display a window to allow entry of the new low value type in the new value to be read by the Sensor for zero eg 0000 00 click OK Submerge the sensor in full scale calibration standard The sensor should be gently agitated to remove any air bubbles Allow the temperature of the solution and sensor to stabilize recommend at least 1 hour Enter the non normalised EC value of the standard solution click OK 10 Refer to the SensorMate User Manual for further reference PENTAIR ENMRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 36 9 3 pH To maintain high quality control over monitoring programs it is recommended calibration is checked every 3 6 months The sensor can be checked by use of known pH standards buffer solutions Alternatively sensors may be returned to an authorised Greenspan agent for re calibration Quick Check Method pH Sensors 1 Remove the sensor from the water ensure the sensor is clean and dry Dirty electrodes could be a key source of calibration errors Provide power to the sensor connect sensor to a PC with appropriate communication cable Run SensorMate Place the sensor in a low level pH buffer eg pH 4 so that the electrode is fully submerged Once connected the monitor screen will display the readings The pH value displayed on the moni
29. USER MANUAL 46 Measurement Technique Sensor Range Resolution Accuracy Response Time Measurement Technique Operating ranges Overall Accuracy combined linearity hysteresis and repeatability Sensor Outputs Storage Temperature Cable type Standard Cable lengths Non standard Cable Lengths Power supply Power ESD protection Current consumption Sensor warm up time On board battery pack option Battery capacity Typical field life battery pack Internal data logger Memory size Measuring units Data storage Logging frequency Dimensions L x OD Weight Wetted materials PENTAIR ENVRONMENTAL SYSTEMS Oxygen fluorescence detection method 0 200 saturation 0 20 ppm 0 196 Oxygen 196 of reading or 0 02 ppm whichever is greater 9096 of DO change within 60 seconds Integrated precision thermistor 0 50 C 0 2 Deg Internal Data Logger serial data via SensorMate software Optional adaptor provides 50112 serial output 3 wire 5 Deg 60 Deg Polyurethane sheathed cable OD 8mm with 3mm vent tube moulded entry HS7 connector for serial connection 10 20 30 50 100 150 m 32 65 100 165 325 490 ft Yes Extra cable moulding time may be required 8 to 30V DC at sensor or on board battery pack option 2000 volts Sleep 0 2 mA logging 20 mA communicating 30 mA consumption rates vary depending on parameters selected Up to 5 seconds Housing screws to
30. W PENTAIR RS422 Half Duplex only Ground ve Supply Black Live if connected 9 30 VDC ve Supply Red Shield Gnd Green Yellow Ground ve Supply Black 9 30VDC ve Supply Red RX A RXD White TX B TXD Blue TX A J TXD Yellow RX B RXD Violet Comms Ground Green MP Series Sensor Sensor Cable with 57 Connector Breakout Communications Cable Part 5CC 750 gt PENTAIR RS485 Half Duplex only Ground ve Supply Black Live if connected 9 30 VDC ve Supply Red Shield Gnd Green Yellow Ground ve Supply Black 9 30VDC ve Supply Red D Yellow White D Blue Violet Comms Ground Green MP Series Sensor Sensor Cable with HS7 Connector Breakout Communications Cable Part 5CC 750 23 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 6 Serial Communication RS232 RS422 485 Communication to the MP series sensors is via a serial link The user can select RS232 default setting or RS422 485 The Pentair MP Sensor CommsMode Utility is a software tool that provides a simple method for selecting communication modes non standard baud rates and Modbus settings NOTE SensorMate software uses the default settings Pentair MP Sensor CommsMode Utility Version 1 0 Fie About gt PENTAIR Communication mode Baud rate 19200 Default v R5232 385422 485 Modbus options Restore defaults Modbus address 1 247 Modbus
31. able for applications where a vented cable is not desirable e g Battery pack only sensors 2 1 2 Moisture Ingress To avoid moisture ingress via the vent tube on any sensor configuration with gauge pressure sensors a closed vent system is provided which maintains atmospheric pressure within the ceramic capacitance transducer while preventing moisture condensing within the sensor cable 2 2 Electrical Conductivity Toroidal Sensing Head The EC sensor uses an electromagnetic field for measuring conductivity The black plastic head contains two coils wound on toroidal i e doughnut shaped ferrite cores The hole in the EC head passes through the centre of the coils One Coil is excited with an alternating current which generates an electromagnetic field around the coil and into the water Special electronics senses the amount of electromagnetic field in the second coil which is proportional to the conductivity of the water that fills the hole and surrounds the head The main benefit derived from utilising toroidal sensing technology for the measurement of EC is the reduction in fouling and the elimination of system errors caused from electrode degradation There are no electrodes in direct contact with the water that can foul erode or corrode The sensor head should be periodically inspected and cleaned with fresh water and damp cloth The protective shroud is easily unscrewed from the head for quick access Bottle brushes are commonly us
32. aling Power and Data Cable i Moulded cable entry End Sensor Optional Inline Parameter 65mm OD 316 SS or Acetal sensor body up to 2 containing microprocessor controlled electronics The Greenspan MP47 Sensor consists of the following primary elements Optional Inline Parameter up to 2 LP Double O ring sealing Power and Data Cable Moulded cable entry End Sensor 47mm OD 316 SS or Acetal sensor body containing microprocessor controlled electronics 14 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 15 4 1 2 Cable Details All Greenspan sensors utilise a specially designed Polyurethane Cable The cable is reinforced with Aramid fibres which provide superior tensile strength and low stretch properties Changes in temperature have little effect on the overall length of the cable This feature provides users with the benefit of self suspending the sensor to depths of 300m without additional strain relief The cable contains 12 x conductors 1 x drain wire an internal vent tube and Aramid fibres The outer jacket is made from UV stabilized Polyurethane and is suitable for all external underwater or harsh environment applications This common cable construction is utilized for vented and non vented Greenspan sensors Cables are generally factory fitted at time of manufacture in specified lengths Cable Construction 1 Vent Tube Polyamide size ID x OD 2 40 x 3 20 mm 2 Aramid Fib
33. ance and expected life of the electrode Prior to removal of an electrode the sensor must be thoroughly cleaned and dried Care must be exercised to ensure that no liquids or other contaminants enter the electrode cavity The pH sensor should not be stored or transported without an electrode Immersion of a PH3000 without an electrode will likely cause damage to the sensor 29 PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 30 With the old electrode removed the electrode cavity should be carefully inspected small ring of contamination may be present at the mouth of the cavity If present this contamination should be removed with a clean cloth in such a way so that the contamination is not pushed inside the cavity Do not flush the cavity with water or other cleaning solvents as damage to the electronics inside the sensor could occur Once clean a new electrode can be screwed into the electrode mount It is recommended that the calibration of the new electrode be checked prior to re deployment 8 4 Oxygen Reduction Potential On a MP47 sensor the ORP parameter will be either an inline or an end sensor On a MP65 sensor the ORP parameter will be fitted inside the sensor mount as an inline sensor or an end sensor The sensor may be cleaned using a soft cloth mild detergents and warm water If the sensor shows signs of marine growth a light biocide can be used to clean and kill any biological growth on the
34. and possible debris loading during flow events 7 4 Other Considerations Environmental compatibility should be checked before using the sensors and advice sought from Greenspan if any doubt exists The sensor utilises some 316 stainless components that are suitable in a majority of situations but care should be taken against possible corrosion in high Chloride Sulphate or Ferric solutions The body should always be totally immersed under the water to ensure that the sensor is at water temperature and to also avoid any possible anodic cathodic action taking place on the components at the water air interface If using clamps to mount the sensor these should be of a type that evenly clamps the sensor body without excessive loading that could damage the sensor body 27 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 8 Maintenance Parameter 8 1 Pressure On a MP47 sensor the pressure parameter will be either an inline or an end sensor On a MP65 sensor the pressure parameter will be fitted inside the sensor where the pH electrode is also housed an inline sensor or an end sensor The sensor may be cleaned using a soft cloth mild detergents and warm water If the sensor shows signs of marine growth a light biocide can be used to clean and kill any biological growth on the sensor 8 2 Electrical Conductivity On both the MP47 and MP65 sensor the EC parameter will either be an inline or an end sensor The s
35. ay include pipeline monitoring gas bubblers and tanks 4 2 4 EC Sensor Shroud Please note that MP sensors with electrical conductivity are fitted with the protection shroud which is calibrated in the factory with the shroud on If the shroud is removed the calibration in water will be affected Please ensure that the shroud is always fitted for normal use in water and only removed whilst cleaning The shroud should be fitted when performing calibration checks in solutions 16 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 17 If the sensor needs to be deployed without a shroud this requirement should be noted at time of order The factory can then perform a special calibration without a shroud using large volumes of standard solutions On deployment it is necessary to maintain a space of at least 100mm 4 around the head 4 2 5 Cable Options A standard sensor is supplied with a fixed moulded cable entry and a 7 pin Hirschman connector at the end of the cable opposite to the sensor The length of cable is specified by the user 4 2 6 Sensor Body Sensor is available with a black Acetal or passivated 316 Stainless Steel body For applications in harsh environments it is recommended that the Acetal body material be specified 4 2 7 Communication Cables A communication cable is required to connect the sensor to a PC e 5 840 The standard cable has a 7 socket Hirschman connector on one end and a USB the oth
36. by the Sensor for zero eg 0000 00 click OK 9 Submerge the sensor in full scale calibration standard Sensor should be gently agitated to remove any air bubbles 10 The screen should display a window to allow entry of the new high value type in the new value to be read by the Sensor for the high value eg 0400 00 click OK 9 6 ODO To maintain high quality control over monitoring programs it is recommended ODO calibration is checked every 3 6 months The MP Sensor has a user calibration facility in SensorMate The sensor can be checked by use of known standards Quick Check Method 1 Remove the sensor from the water ensure the sensor is clean 2 Provide power to the sensor connect sensor to a PC with appropriate communication cable 3 SensorMate 4 Place the sensor into a container with Sodium Sulphite solution 2 tea spoons Sodium Sulphite per 1 litre of water for at least 10 minutes to allow the sensor to stabilise 5 Once connected the monitor screen will display the readings The DO Sat reading displayed should be 1 of 0 6 Remove the sensor from the container and rinse the sensor with clean water 7 Place the sensor into a container of full scale solution tap water aerated by an air pump and circulated using a water pump and allow the sensor to stabilise for at least 10 minutes 8 Check the reading on the monitor screen the DO sat should be 1 of 98 39 PENTAIR ENVRONMENTAL SYSTEMS
37. cause for premature ORP sensor failure is the chemical or biological contamination or fouling of the wick or salt filled cavity Added protection for the reference electrode is provided by a reference protection ring constructed of porous PTFE that is impregnated with a special conductive gel It is placed over the reference wick and should prevent most contaminants from reaching the wick while still allowing good electrical contact with the sample If the low cost protection ring is contaminated or fouled it can be simply replaced extending the life of the combination electrode 2 5 Turbidity Turbidity is the measurement that indicates the clarity of water due to fine suspended particles In the environment turbidity is often due to clay or silt These fine particles have the ability to scatter light The MP Series sensor has a light source that is projected into the water A detector measures the light that has been scattered at 90 degrees to the source As the number of particles increase more light is scattered and sensed by the detector and the higher the turbidity reading The Turbidity probes with their integral wiper assembly are designed where bio fouling or sedimentation build up is possible The probes may be submerged to a depth of 100 meters approx 330 feet The MP Series sensors use 90 optics and employs infrared light in accordance with 1507027 The optical system transmits a beam of 860nm wavelength The effective workin
38. ectrode from drying out A rubber cap is provided with the electrode for this purpose A small amount of liquid should be placed in this cap prior to the cap being placed over the electrode KCI is the preferred storage solution however tap water should be used if not available Soaking in 3M KCI solution overnight may restore some electrodes that have been allowed to dry out although some calibration drift can be expected until the electrode is fully re hydrated 8 4 3 Electrode replacement ORP electrodes will require periodic replacement How long they last is dependent on the environment and to a lesser extent the cleaning and maintenance In a typical environment electrode life between 1 and 3 years is quite possible The electrode is sealed in its mount with two O rings on the electrode body The electrode is removed by unscrewing it from the housing Spanner flats are machined on the electrode to assist Prior to removal of an electrode the sensor must be thoroughly cleaned and dried Care must be exercised to ensure that no liquids or other contaminants enter the electrode cavity The ORP sensor should not be stored or transported without an electrode Immersion of a sensor without an electrode will likely cause damage to the sensor With the old electrode removed the electrode cavity should be carefully inspected A small ring of contamination may be present at the mouth of the cavity If present this contamination sh
39. ed for cleansing the sensor hole In marine environments crustaceans may need removal at regular intervals The toroidal sensors create a magnetic field around the sensing head The standard EC sensor includes a shroud around the transducer head that constrains this field and allows the sensor to be deployed close to other objects The sensor head should always be completely submerged and positioned such that the possibility of air bubbles becoming entrapped within the sensor hole is minimised Large bubbles may cause errors if trapped Electrical Conductivity EC is the measurement that indicates the ability of a solution to carry an electric current It is defined as the inverse of resistance Ohms per unit square and is measured in units of Siemens metre or micro Siemens centimetre PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 10 EC readings are a function of the number of ions present and their mobility The electrical conductivity of a liquid changes due to the ion mobility being temperature dependant The temperature co efficient of conductance or the K factor varies for different salts and can be in the range 0 5 to 3 0 A default value of 1 84 per degree Centigrade is used in the MP Series sensors EC is a function of both salt concentration and temperature and its value can be expressed as non normalised or normalised The non normalised Raw reading will vary with temperature even if the concentration o
40. ensor may be cleaned using a soft cloth mild detergents and warm water If the sensor shows signs of marine growth a light biocide can be used to clean and kill any biological growth on the sensor 8 3 On a MP47 sensor the pH parameter will be either an inline or an end sensor On a MP65 sensor the pH parameter will be fitted inside the sensor mount as an inline sensor or an end sensor The sensor and electrode may be cleaned using a soft cloth mild detergents and warm water If the sensor shows signs of marine growth a light biocide can be used to clean and kill any biological growth on the sensor Sensors are supplied with a removable shroud that provides added protection for the electrode This shroud unscrews for cleaning The sensor must be cleaned with the electrode in place The sensor will be damaged by the ingress of water or other solutions into the electrode cavity The electrode should only be removed when it is to be replaced To assist in cleaning the glass electrode the sensor is provided with a special tool A few drops of a mild detergent can be placed in the cleaning tool which is then pushed over the glass pH bulb Carefully rotating the tool by hand should remove most contamination For heavy scaling or contamination a cleaner that contains some abrasive can be used Rinse the electrode in clean water prior to installing sensor or checking calibration 28 PENTAIR SYSTEMS MP SERIES
41. er end For connection to PC and laptops via USB port e 5 700 Has a 7 socket Hirschman connector on end and DB9 on the other end For connection to PC and laptops via serial ports e 5 750 Has a 7 socket Hirschman connector on one end and bare wires on the other end For connection to TLC dataloggers etc e 5CC 102 Has a 9 pin Conxall to D connector for serial ports To connect a sensor with battery pack only to a PC or laptop via a serial port PENTAIR ENMRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 4 2 8 Optional Serial Output SDI Adapter Unit The MP Series Sensor provides on board data logging of all data and serial output via RS232 to a Laptop or PC using the supplied SensorMate software A feature of the sensor is the ability to also provide serial output in SDI12 format using a small SDI Adapter unit connected to the end of the sensor cable The SDI12 Adapter unit Part No 7SDI 1000 provides a standard 3 wire SDI12 output for connection to a third party Data Logger or Process Controller The MP Series Sensor can simultaneously provide on board data logging as well as act as a standard 50112 sensor When data is requested via SDI 12 the sensor will wake up and take a new set of readings for all channels that are enabled in the sensor The sensor will then go into a low power sleep mode The user can enable or disable channels using SensorMate Pentair SensorMate Version 7 1 Sensor 027288 gt PENTAIR
42. eries Code Description Read multiple registers Read current values calibration data basic calibration data and confguration data 16 Write registers multiple Write current values calibration data basic calibration data and confguration data Initiate a scan 65 69 User commands See following section 10 9 Command Set User Function Codes Function User Function Uses for 3000 Series Code Description 65 SetDateandTime Futureuse 66 StartLogging Futureuse 68 Wipenow Enter passcode to gain level 0 1 or 2 access and to log out 69 Returns text string for a given channel number 10 10 Exception Responses Exception Description Uses for 3000 Series Illegal Function The received function code is not a valid Illegal Data Address The address in the data field is not valid ACK Acknowledge The function is valid and is being processed Busy message rejected The message was received without error but the 3000 Series cannot perform the operation Retry later Illegal Data Value The value in the data field is outside limits 07 Access denied operation cannot be performed 44 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 2 45 11 Specification Measurement technique Standard Pressure ranges available Max Over Range Other Ranges available Overall Accuracy combined linearity hysteresis and repeatability
43. ew high value Enter the new value e g 9896 for the full scale value and click OK 16 Click on Monitor to verify the readings on the screen 40 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 10 Modbus notes 10 1 Holding Registers Sensor information can be mapped to Modbus holding registers This provides an easy transfer of data to the many devices that support Modbus The user can select Modbus RTU default or Modbus ASCII SensorMate V2 1 software has a feature to assist with setting up Modbus holding registers When Modbus Registers is clicked in the Sensor Setup tree a list of available channels will be displayed with a selection box Selecting a Sensor channel will allocate 6 holding registers for channel information A table will update and display the holding registers allocated The Ok button must be pressed to send this setup to the sensor Pentair SensorMate Sensor Setup 027288 EC zi els Checked channels vill have General Modbus Register Information AE Field Suppl values mapped to Modbus Temperature Show registers Pressure Temperature EC RAW Pressure EC NORM RAW Salinity arabia Salinity oH Turbidity Turbidity amp Schedules Main i Modbus Registers Checked Channel Modbus Registers Known values in brackets Channel Name Channel Number Units Code Last Scanned Last Logged Field Suppl 100 0 101 28 102 103 104 105 Temperature 106 3 107 20
44. f salt in the liquid does not change Normalisation automatically compensates for temperature variations providing the salt concentration remains the same Normalisation 15 referenced to 25 C which means that the raw and normalised readings are identical at this temperature The measurement of conductivity is usually carried out to assist in the determination of the salt content of a water body the salinity The MP Series sensor calculates a salinity value based on method 2530 D Algorithm of Practical Salinity Standard Methods for the Analysis of Water and Wastewater This method is also contained in UNESCO Technical papers in marine science 44 Algorithms for computation of fundamental properties of seawater 2 3 pH The PH sensor uses a robust gel filled industrial pH electrode for field monitoring in a variety of environments The pH electrode consists of a PH sensitive glass membrane attached to a sealed insulating tube containing a solution of fixed PH in contact with silver silver chloride half cell The potential developed across the membrane is compared to a stable reference potential e g a silver silver chloride half cell in contact with an electrolyte containing chloride Completion of the circuit is by means of a porous constriction the salt bridge which allows the reference electrolyte to slowly flow into the sample OH gives an indication of the acidity alkalinity of a solution and is defined as pH
45. g area around the sensor is approximately 50mm forward and 50mm circumference The sensor uses a unique modulation technique that ensures almost total rejection of ambient light conditions as well as a unique microprocessor controlled differential sample and hold circuit for enhanced performance particularly at low turbidity levels 2 6 Optical Dissolved Oxygen The optical dissolved oxygen ODO sensor uses a robust solid state fluorescence based transducer for field monitoring in a variety of environments Fluorescence based sensors are inherently reliable and low maintenance with no need for replaceable membranes or electrolyte No Oxygen is consumed during operation making the sensor suitable for low flow applications The sensor also responds quickly to changes in Oxygen levels PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 12 2 6 1 Principal of Operation The emitter sends light at 475 nm to the back side of the sensing element e The wetted side of the sensing element consists of a thin layer of a hydrophobic sol gel material A ruthenium complex is trapped in the solgel matrix effectively immobilized and protected from water e The light from the LED excites the ruthenium complex immobilized in the sensing element e The excited ruthenium complex fluoresces emitting energy at 600 If the excited ruthenium complex encounters an oxygen molecule excess energy is transferred to the ox
46. gging sensor It is normally powered by a 12 24V DC power supply which can be battery solar or Mains Plug Pack The logger has a large memory capacity and can operate for long periods between field visits Typically the logged data is collected via laptop using the supplied SensorMate software The following diagram illustrates the typical wiring arrangement for the MP Series Sensor Ground ve Supply black 9 30VDC ve Supply red Shield Gnd green yellow MP Series Sensor Sensor cable with 5CC 840 USB Comms Cable for HS7 PC or laptop running SensorMate Software The SensorMate software provides for configuration of the data logger collection of logged data and all other functions For further information please refer to the SensorMate User Manual 22 PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 5 2 Wiring Diagrams A Breakout Communication Cable Part 5CC 750 is available if a bare wire connection is more suitable for an application The Pentair MP Sensor CommsMode Utility contains wiring information for the various modes of serial communication PENTAIR Connection Ground ve Supply Black Live if connected 9 30 VDC ve Supply Red Shield Gnd Green Yellow Ground ve Supply Black L 9 30VDC Supply Red TXD Yellow RXD Violet Comms Ground Green MP Series Sensor Sensor Cable with HS Connector Breakout Communications Cable Part 4 5CC 750
47. he software coding of these 8 bit character used to represent TRUE and FALSE structures Bool UC8 Unsigned 8 bit character Ul16 unsigned 16 bit integer 516 signed 16 bit integer UI32 unsigned 32 bit integer 532 signed 32 bit integer F32 PENTAIR ENVRONMENTAL SYSTEMS IEEE754 single precision floating point 32 bit value MP SERIES SENSOR USER MANUAL Calibration Config Configuration CV Current Values HO High order upper 8 bits of a 16 bit word LO Low order lower 8 bits of a 16 bit word 10 4 Integer and Floating Point Values The Modbus protocol specifies that the order of bytes is sent as low order first For example when sending a value of 0x1234 the first byte sent is 0x12 followed by the value 0x34 10 5 32 Bit Values The Modbus registers for 32 bit integer and floating point values are aligned on even register numbers and must be read and written in a single function call For example to read a 32 bit value from registers 00102 00103 call function code 03 start register 00102 and read two register values An attempt to read register 00103 will result in an exception response 10 6 Floating Point All floating point variables denoted as type F32 are IEEE754 Floating Point format single precision 32 bit Example Read registers 00100 and 00101 flow velocity which has a value of 51 392 The Modbus registers return 0x424d and 0x9225 from addresses 0100 and 0101 This data corresponds to 0x25924d
48. nd serial number describe the problem including how and under what conditions the instrument was being used at the time of malfunction Clean the product and cable Decontaminate thoroughly if used in toxic or hazardous environment Carefully pack product in original packaging if possible amp include a statement certifying product and cable have been decontaminated with supporting information Products returned for repair must be accompanied by a completed GRN Goods Return Notification form All sensors returned for service and repair work must be properly decontaminated prior to return A cleaning charge may be applied to sensors that require further decontamination Service work will not commence until the quotation has been accepted by the customer A purchase order for all repair and service work will be required before work is carried out PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 8 2 Sensor Overview Parameter 2 1 Pressure The pressure sensor utilizes a ceramic based capacitive element as the transducer This is designed to be of rugged construction and incorporates active electronics as an integral part of the transducer substrate to enhance reliability and accuracy Force applied to the ceramic element due to the pressure deforms its shape This deformation causes a change in Capacitance which can be measured by the electronics The inherent stability and toughness of the ceramic ensures the repeatabili
49. ould be removed with a clean cloth in such a way so that the contamination is not pushed inside the cavity Do not flush the cavity with water or other cleaning solvents as damage to the electronics inside the sensor could occur 31 PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 32 Once clean a new electrode can be screwed into the electrode mount It is recommended that the calibration of the new electrode be checked prior to re deployment 8 5 Turbidity On a MP47 or MP65 sensor the turbidity parameter will be an end sensor only 8 5 1 Wiper Replacement The effectiveness of the wiper in maintaining a clean optical surface will eventually be compromised the time being dependent on the water under investigation and the number of wiping cycles carried out We recommend periodic inspection of the wiper pad to determine if the material is deteriorating or is impregnated with material from bio fouling The wiper is a consumable item and a spare is provided with each MP sensor along with a hex key to loosen and fasten the wiper set screw Wiper packs containing two wipers and a hex key are available as a standard accessory The Greenspan part number is 5TW 001 pictured left To change the wiper loosen the set screw in the wiper arm until the wiper assembly can be removed from the wiping shaft Place a new wiper assembly on the shaft with the set screw aligned squarely with the flat on the wiping shaft Gently p
50. r is to be removed 7 1 Cabling Considerations Care should be taken with installation and field servicing to ensure the cable is not subjected to persistent pulling snagging or severe compression Cyclic loading of the cable should also be avoided through careful sensor deployment Additional stilling wells or mounting brackets may be required to prevent sensor movement which may cause long term cable movement Where cable runs are required which may be subject to environmental effects heat water movement sunlight flood debris etc it is advisable to protect the sensor cable inside a slightly larger diameter conduit such as PVC steel or polyethylene This also allows the sensor cable to be pulled out should a sensor change over be required at the site Maximum cable runs up to several hundred meters are possible without affecting electrical signals PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 7 2 Typical Sensor Installations e Edge of river stream lake embankment e Mounted within a stilling well off stream from main flow e Mounted within drainage channels pipes e Suspended from dam walls e Sensor anchored to bed of lake stream 7 3 Field Installation must ensure e The sensor is anchored or held in position or located so it is not subject to any movement during normal operations e Sensor is protected from direct sunlight to avoid high temperature fluctuations e Sensor is protected against high turbulence
51. re 3 12 x Conductors 7 x 0 20 mm Tinned Copper Section 0 22mm2 AWG24 Insulation Polypropylene size 1 10 mm 0 05 mm 4 Tape Polyester 5 Drain Wire 7 0 20 TinCu 6 Tape Polyester Aluminium 7 Jacket Polyurethane black size OD 8 05 mm 0 15 4 1 3 Mechanical Specifications e Specially manufactured Greenspan cable with 12 cores and internal vent e High chemical resilience and abrasive resistance e Conductor cross section AWG 24 e Electrical Resistance 9 ohm per 100m per conductor e Operating temperature 85 C max e Bending radius static 6 e Bending radius dynamic 12 e Max Operating voltage 250V e Jacket Printing white colour each meter e Conductor colour codes green yellow white black brown turquoise violet pink red blue grey The moulded cable is fitted to the sensor using a double o ring seal and located using 2 x grub screws The length of the cable is not critical to the long term calibration and operation of the sensor provided the electrical requirements such as minimum supply voltage are maintained PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 4 2 Options and Accessories 4 2 1 Closed Venting System CVS When MP sensors configured with a depth sensor are deployed there can be a difference between the atmospheric temperature and the temperature of the sensor at depth This temperature differential causes a pumping effect to occur
52. re reference 9 1 Pressure Sensors To maintain high quality control over monitoring programs it is recommended that pressure calibration is checked every 3 6 months If re calibration is required a method is presented here using standard methods Alternatively sensors may be returned to an authorised Greenspan agent for re calibration The sensor can be checked by use of known pressure inputs usually from an accurate digital pressure calibrator or dead weight tester However a quick check can be done at any time by reading the sensor in air Quick Check method for a gauge pressure sensor 1 Remove the sensor from the water ensure the sensor is clean and dry and the vent tube at the top of the cable is not sealed 2 Connect the sensor to a PC and run SensorMate 3 Once connected the monitor screen will display the readings The Pressure value should read Zero 0 1 of the full scale range of the sensor 4 This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 0 1 FS Quick Check method for an absolute pressure sensor 1 Remove the sensor from the water ensure the sensor is clean and dry 2 Connect the sensor to a PC and run SensorMate 3 Obtain the barometric pressure for the location where the check is being performed 4 Once connected the monitor screen will display the readings The Pressure value should read the barometric pressure
53. ress the wiper arm down until the wiper arm hits the stop on the shaft The wiper pad should now be compressed to roughly one half its original thickness Tighten the set screw do not over tighten NOTE It is imperative that the set screw be fastened squarely aligned onto the flat on the shaft otherwise proper operation will be affected CAUTION Do not over tighten the set screw or manually attempt to rotate the wiper arm once set onto the shaft Any attempt to manually rotate the wiper may cause gearbox damage and void the warranty 8 6 Optical Dissolved Oxygen On a MP47 or MP65 sensor the ODO parameter will be an end sensor only The sensor and electrode may be cleaned using a soft cloth mild detergents and warm water If the sensor shows signs of marine growth a light biocide can be used to clean and kill any biological growth on the sensor It is important to take care when cleaning around the sensor optics do not scratch the sensor lens PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL The sensor will be damaged by the ingress of water or other solutions into the electronics cavity and Warranty will be voided if disassembled Rinse the electrode in clean water prior to installing sensor or checking calibration 9 User Calibration and Testing The factory supplied Certificate of Conformance will provide detailed information regarding the sensor ranges and specifications this document should be retained for futu
54. roducts damaged by improper installation or application or subjected to misuse abuse neglect or accident This warranty also excludes items such as reference electrodes and Dissolved Oxygen membranes that may degrade during normal use Greenspan will not be liable for any incidental or consequential damage or expense incurred by the user due to partial or incomplete inoperability of its products for any reason whatsoever or due to inaccurate information generated by its products All Warranty service will be completed as soon possible If delays are unavoidable customers will be contacted immediately Any sensor should not be dismantled unless under instruction from Greenspan Service staff Incorrect handling will void the warranty 1 6 Factory Service amp Repair The correct choice of sensor and assistance with field installation can be provided by Greenspan and their sales offices A correct choice of equipment together with technical advice and field experience should result in long term success in the field Greenspan Technical Services is dedicated to customer support and provides assistance in the selection installation deployment and commissioning of sensors with a full range of consulting services All Greenspan products are designed developed and manufactured in Australia and can be supplied at short notice If for some reason sensors are required to be returned to our factory or your sales representative please note the model a
55. s at water temperature and to avoid any possible anodic cathodic action taking place on the stainless body due to the oxygen difference across the boundary Care should be taken if clamps are to be attached to the Stainless Steel body as the depletion of oxygen to the clamp probe interface can cause corrosion due to anodic cathodic action It is recommended that Acetal body sensors be used if clamping Sensors should generally be installed such that they can be easily and safely removed for cleaning servicing For environmental applications the sensor can often be mounted inside a section of PVC or steel pipe which enters the water body The sensor can then be slid down inside the pipe until the sensor head just protrudes into the water body This provides a high degree of protection for the sensor from environmental sunlight heat flood debris etc as well as from other influences such as Cattle vandalism etc Most sediment transport occurs during storm events and flood conditions Protection from floating debris damage is an important consideration along with adequate tethering of sensors The MP sensor with pH or ORP is shipped with a rubber cap covering the electrode This cap contains a small amount of 3M KCI solution and is in place to prevent the electrode from drying out during shipping and storage This cap must be removed prior to installation The cap should be retained so that it can be placed back on the electrode if the senso
56. sensor e The sensor is then re run through the environmental chamber to ensure that the calibration curves are correct over the entire working range and the sensor meets specifications pH Sensors e Sensors are calibrated using a stable precision DC source e sensor with electrode fitted is checked in pH 4 0 6 0 amp 10 0 buffer solutions which are verified against external pH buffer solutions checked in a NATA accredited facility ORP Sensors e Sensors are calibrated using a stable precision DC source e The sensor with electrode fitted is checked in Zo Bells Standard solution Optical DO Sensors e Sensors are calibrated in a stirred aerated DI water bath for 10096 saturated and an aqueous Sodium Sulphate solution for zero Turbidity Sensors e Sensors are calibrated using AMCO CLEAR TURBIDITY STANDARD for ANALITE ISO 7027 PROBES All Sensors e An extensive range of final calibration and inspection tests including tests in solutions of known standards are carried out on every sensor The sensor is visually inspected and packed ready for despatch e The complete calibration records sensor history and batch number are placed on file and archived e The sensor is visually inspected and packed ready for despatch PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 5 Sensor Wiring amp Connections 5 1 Standard Connections The MIP Series sensors are designed as a self contained data lo
57. solution so that the electrode is fully submerged Once connected the monitor screen will display the readings The ORP value displayed on the monitor screen should be the standard solution value 2 of the full scale range of the sensor PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 38 Re Calibration Method Using Calibration Solutions 1 Ensure the sensor is clean and dry Provide power to the sensor connect sensor to a PC with appropriate communication cable Run SensorMate In SensorMate select User Calibration from the SensorMate main menu Select the ORP Channel Select 1 point Offset Calibration Type DU qe EM dee SY Put the sensor in a solution with a known ORP value Allow time for the electrode to stabilize 8 The screen should display a window to allow entry of the new low value type in the value of the standard solution e g 0228 00 Click OK 9 Referto the SensorMate User Manual for further reference 9 5 Turbidity The sensor can be checked by use of known laboratory Turbidity standards Sensors are calibrated using AMCO CLEAR TURBIDITY STANDARD for ANALITE ISO 7027 PROBES The claimed advantages of these standards are e Safe non toxic and disposable e Easy to use No dilutions or preparations e Accurate to 196 lot to lot e Available in a wide range of values e Stable does not settle out of suspension e Guaranteed One Year Shelf Life e N I S T Traceable Quick
58. the event of a surface disturbance to the main supply The unit is designed to allow easy access to the battery compartments for battery changeover and is housed in a cylindrical body of approximately the same dimensions as the sensor housing thus doubling the length of the sensor Sensor Battery Pack Cover Removable Sensor with Battery Pack Cover Ready to Deploy 4 3 1 Battery Replacement Batteries are removed by unscrewing the housing cover as indicated below and gently levering the battery cells until they slip out Replacement batteries must be inserted correctly or damage to batteries may occur Align the on the battery cells with the red indicator on the housing and push batteries in Batteries are subject to leakage after depletion The leakage is Thionyl Chloride a toxic corrosive non flammable liquid that can cause damage to equipment and personal injury if in contact with the skin or eyes Please replace batteries when depleted When installing replacement batteries within the battery housing it is necessary to push firmly on the cover until it clicks home over the O rings after this it can be easily tightened on the thread by Battery Pack Housing Batt Pack Cover 9 S eS Top View showing 3 x 3 Co Ce lithium batteries Screw on Housing 9 x AA lithium
59. tical analysis e An individual Certificate of Conformance is issued to the customer PENTAIR ENVIRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 6 1 3 Unpacking and Inspection All Greenspan sensors are made to order and are individually calibrated and inspected This ensures that they leave the factory in a working condition They are packed in new cartons for shipping On receipt the customer should inspect the packaging and contents for any signs of damage during transportation The customer should also check that all items on the delivery note have been received Please contact the factory in case anything has been damaged or missing A full set of documentation including Certificate of Conformance Quick Start Guide and User Manual will be provided with all equipment either in hard copy format or in electronic format on the USB flash memory device shipped with the goods If fitted with a 316 Stainless Steel body the unit should only be used in low EC situations Care should be taken against possible corrosion in high Chloride or Ferric solutions water with high iron or sulphate reducing bacteria or low dissolved oxygen The sensor can be fitted with an Acetal body which provides superior corrosion protection in a wide range of chemically active waters Because an individual sensor may be used in a variety of locations media compatibility should be checked before installing and advice sought from Greenspan if any doubt exists
60. tor screen should be the pH buffer value 1 of the full scale range of the sensor Carefully rinse the electrode in water and shake off any attached droplets Place the sensor in a high level pH buffer e g pH 10 so that the electrode is fully submerged Record the measured output value The pH value displayed on the monitor screen should be the pH buffer value 1 of the full scale range of the sensor This confirms that the sensor electronics has remained stable and no further action should be required if the sensor is within 1 FS Re Calibration Method using pH Buffer Solutions 1 Ensure the sensor is clean and dry 2 Provide power to the sensor connect sensor to a PC with appropriate communication cable 3 SensorMate 4 n SensorMate select User Calibration from the SensorMate main menu 5 Select the pH Channel 6 Select 2 point Span and Offset Calibration Type 7 Putthe sensor in a solution with a known low pH ie pH buffer Allow time for the electrode to stabilize 8 The screen should display a window to allow entry of the new low value type in the value of the low pH buffer eg 0004 00 click OK PENTAIR ENMRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 37 9 Put the sensor in a solution with known pH ie pH buffer Allow time for the electrode to stabilize 10 The screen should display a window to allow entry of the new high value type in the value of the high pH
61. ty and long term accuracy of the readings are maintained under the harshest field conditions The on board microprocessor converts the transducer output voltage to a 24 bit digital signal and also measures the transducer temperature This information is used to temperature compensate the sensor over the range 0 50 C Both pressure and temperature are displayed in SensorMate in real units i e metres of depth and degrees centigrade Benefits of the ceramic capacitance sensors over other types of sensors are e Extremely high overload limit typically up to 10 X overload protection e Absolute resistant to wear e High temperature stability e Excellent Long term stability e Excellent Repeatability and linearity e hysteresis effects normally associated with strain type sensors e Corrosion resistant Other sensors require contact of stainless steel face e Not subject to mechanical fatigue that may affect strain gauge type sensors e Low power consumption suitable for remote monitoring amp control units 2 1 1 Absolute Gauge Gauge sensors are vented to atmosphere so that the effects of changes in barometric or atmospheric pressure do not affect water level readings Sensors that are not vented to atmosphere are referred to as Absolute Sensors The primary difference between the two types of sensors is the effect of atmospheric pressure on the water level measurements they provide Barometric Pressure acts on both sides of a Ga
62. uge sensor i e via the water on one side and via the vent tube on the other The Barometric pressure is cancelled out and has no effect on the water level readings Gauge Sensors will read zero in air Barometric atmospheric pressure acts only on one side of a non vented or Absolute Sensor on the water side Any changes in Atmospheric pressure will be detected by the sensor and measured as changes in water pressure As the Barometric pressure varies these changes will be measured as water level changes even though the actual water level may have remained steady Typical variations in barometric pressure when converted to head of water are in the order of 100mm A large change in weather pattern storm front may cause a drop in barometric pressure by up to 20Hpa PENTAIR SYSTEMS MP SERIES SENSOR USER MANUAL 9 which would cause an error of 200mm Water level variations caused by barometric pressure can removed by monitoring barometric pressure e g via a weather station or barometric sensor and then post processing the absolute water level readings The lowest standard absolute range offered is 20m which is suitable for measuring water levels of up to approximately 10m Absolute sensors will read zero in a perfect vacuum and around 10m in air depending on the atmospheric pressure Gauge sensors are suitable for most monitoring applications where water level readings are required Absolute sensors are suit
63. ygen molecule in a non radiative transfer decreasing or quenching the fluorescence signal see Fluorescence Quenching below The degree of quenching correlates to the level of oxygen concentration in contact with the sensing element 2 6 2 Fluorescence Quenching Oxygen is able to efficiently quench the fluorescence and phosphorescence of certain luminophores This effect first described by Kautsky in 1939 is called dynamic fluorescence quenching Collision of an oxygen molecule with a fluorophore in its excited state leads to a non radiative transfer of energy The degree of fluorescence quenching relates to the frequency of collisions and therefore to the concentration of the oxygen containing media PENTAIR ENMRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 3 Applications Applications in which the Greenspan MP Series sensors can be used include e Monitoring of streams and rivers e Monitoring of water storage bodies including stratification studies e Intermediate and final effluent treatment monitoring e Hydrological run off studies e Ground and bore water analysis e Drinking water filtration efficiency e Industrial process monitoring e Sludge and dredge monitoring 13 PENTAIR ENVRONMENTAL SYSTEMS MP SERIES SENSOR USER MANUAL 4 Instrument Details 4 1 1 Sensor Design The Greenspan MP65 Sensor consists of the following primary elements MP Sensor mount houses field replaceable pH electrode Double O ring se

MP Series User Manual - Pentair Environmental Systems

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