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PART THREE - OPERATION

SECTION 4 - TRANSMITTER CALIBRATION

PRO-series Model E3 Electrodeless Conductivity Transmitter

SAMPLE CAL Method

☞

The “SAMPLE CAL” method enables the sensor to remain
installed in the process.

Obtain a sample of the process solution and determine
its value using laboratory analysis or a recently cali-
brated portable meter.

Press

MENU key

to display a “MAIN MENU” screen.

If the

screen is not showing, use

key

to display it.

Press

ENTER key

to display

Press

ENTER key

again to display

Press

key

once to display

Press

ENTER key

to display

With the sensor in the process, press

ENTER key

again to confirm. This active
screen appears showing the measurement reading.

NOTE:

During calibration, the analog output is auto-
matically “held” at the last measured value.

Wait for the reading to stabilize which may take up to
30 minutes. Then press

ENTER key

. The “PLEASE

WAIT” screen may appear if the reading is still too un-
stable. After the reading has stabilized, this static

screen appears showing the “last

measured” value.

Use

arrow keys

to adjust the displayed value to

exactly match the known value of the process sample.

Press

ENTER key

to enter the value and complete cali-

bration (“CONFIRM CAL OK?” screen appears).

10. Press

ENTER key

again to display the active meas-

urement reading on the “CONFIRM ACTIVE?” output
status screen. When the reading corresponds to the

Содержание PRO-E3 series

Страница 1: ...TION 0RINTED IN 5 3 PRO series Model E3 Electrodeless Conductivity TransmitTER 1 OPERATING MANUAL PRO series Model E3 Electrodeless Conductivity Transmitter for conductivity concentration and TDS measurement ...

Страница 2: ...cts or damages are due to normal wear misapplication lack of maintenance abuse improper installation alteration or abnormal conditions GLI International s obligation under this warranty shall be limited to at its option replacement or repair of this product The product must be returned to GLI Inter national freight prepaid for examination The product must be thoroughly cleaned and any process chem...

Страница 3: ... EFT B Immunity 1 0 kV Signal Power Lines EN 61000 4 6 1996 Conducted Immunity 10 V 80 AM 1 kHz Supplementary Information The products herewith comply with the requirements of the following directives and carry the CE marking accordingly EMC Directive 89 336 EEC Products were tested in typical configurations Specific test configurations and results are published in L S Compliance s Test Report Num...

Страница 4: ...unsafe condition is likely when 1 The transmitter appears visibly damaged 2 The transmitter fails to operate properly or provide the intended measurements 3 The transmitter has been stored for long periods at temperatures above 158 F 70 C Only qualified personnel should perform wiring or repairs and only when the transmitter is not powered HELPFUL IDENTIFIERS In addition to information on installa...

Страница 5: ...CONNECTING DC POWER Refer to PART TWO Section 3 2 3 3 3 4 or 3 5 to connect DC power to the transmitter C CALIBRATING THE TRANSMITTER The transmitter must be calibrated so that measured values will correspond to actual process values Preferably use the COND CAL calibration method to enter the known value of a properly prepared conductivity reference solution To calibrate with a sample of the proce...

Страница 6: ...URE screen appears 2 Prepare a reference solution that has a conductivity value within the measuring range that you set for the transmitter For best accuracy the value of the solution should be near the typical measured process value For details on preparing a solution refer to step 1 and TABLE E in PART THREE Section 4 3 subsection COND CAL Method 3 Thoroughly rinse the clean sensor in de ionized...

Страница 7: ...erence solu tion value 10 Wait for the reading to stabilize which may take up to 30 minutes Then press ENTER key The PLEASE WAIT screen may appear if the reading is still too unstable After the reading has sta bilized this static screen appears showing the last measured value 11 Use arrow keys to adjust the last measured value to exactly match the known value of the ref erence solution and press E...

Страница 8: ...PRO series Model E3 Electrodeless Conductivity Transmitter ...

Страница 9: ...CTION 3 ELECTRICAL CONNECTIONS 3 1 GLI Electrodeless Conductivity Sensor 22 3 2 Two wire Hookup 2 3 3 Three wire Hookups load sinking or load sourcing with or without RS 485 serial communication 2 2 3 4 Four wire Hookups with or without RS 485 serial communication 2 2 3 5 Monitor Mode Hookups without current loop and with or without RS 485 serial communication 2 P A R T T H R E E O P E R A T I O N...

Страница 10: ... display format 3 4 Configuring Analog Output SET PARAMETER representation SET 4 mA and 20 mA VALUES range expand 5 SET FILTER Time 5 SET FAIL LEVEL Mode off 4 mA or 20 mA 5 3 5 SET PASSCODE feature enabled or disabled 5 3 6 Configuration Setting Summary ranges choices and defaults 5 5 SECTION 4 TRANSMITTER CALIBRATION 4 1 Important Information 5 5 4 2 ZERO Procedure first time sensor calibration ...

Страница 11: ... PRESERVING MEASUREMENT ACCURACY 2 1 Keeping Sensor Clean 7 2 2 Keeping Transmitter Calibrated 7 2 3 Avoiding Electrical Interference 7 SECTION 3 TROUBLESHOOTING 3 1 Checking Electrical Connections 7 3 2 Verifying Sensor Operation 7 3 3 Verifying Transmitter Operation 7 3 4 Verifying Sensor Interconnect Cable Integrity 7 SECTION 4 TRANSMITTER REPAIR RETURN 4 1 Customer Assistance 7 4 2 Repair Retu...

Страница 12: ...ial Communication 2 Figure 2 9 Three wire Hookup Load Sourcing 2 Figure 2 10 Three wire Hookup Load Sourcing with RS 485 Serial Communication 2 Figure 2 11 Four wire Hookup without RS 485 Serial Communication 2 Figure 2 12 Four wire Hookup with RS 485 Serial Communication 2 Figure 2 13 Monitor Mode Hookup without Current Loop without RS 485 Serial Communication 2 Figure 2 14 Monitor Mode Hookup wi...

Страница 13: ...ncentration read out only shown when transmitter is set to measure concentration For security you can enable a passcode feature to restrict ac cess to configuration and calibration settings to authorized personnel only See PART THREE Section 3 5 for details Because each sensor has a unique zero point and span always ZERO the sensor in air when calibrating it for the first time PART THREE Section 4...

Страница 14: ... Div 2 hazardous area All user entered configuration values are retained indefi nitely even if power is lost or turned off The non volatile transmitter memory does not require battery backup A label with the transmitter model number serial number and build date is located between the terminal blocks The transmitter is designed to provide protection from most normally encountered electromagnetic in...

Страница 15: ...ually fixed at a user set temperature NOTE The selected measurement conductivity conc or TDS determines which of the following temperature compensation methods are available Linear per C slope built in natural water temperature proper ties table user entered temperature table or no compensation Sensor to Transmitter Distance Maximum cable length is a function of the measuring range and allowable n...

Страница 16: ...ts for respective hookup diagrams in PART TWO Section 3 2 3 3 or 3 4 Memory non volatile All user settings are retained indefinitely without battery backup Certifications European Community EMC Certified CE compliant for conducted and radiated emissions EN 50081 2 and immunity EN 61000 6 2 General Purpose UL C UL and FM Class 1 Div 2 UL C UL and FM Accuracy 0 1 of span Sensitivity 0 05 of span Rep...

Страница 17: ...d sensor and the transmitter depends upon the full scale value you set for the transmitter measuring range 200 2000 μS cm Full scale Value 2000 2 000 000 μS cm Full scale Value 200 feet 61 m max 300 feet 91 m max NOTE When measuring concentration convert the transmitter full scale value to conductivity to determine the maximum distance The transmitter can be located in a Class 1 Div 2 hazardous ar...

Страница 18: ...tool open both cable entry knockout holes in the back cover 3 Insert and twist the back cover onto the installed wall pipe adapter and tighten its two screws to lock back cover onto the adapter 4 Attach transmitter to back cover using its four captive screws HORIZONTAL PIPE MOUNT PRO SERIES BACK COVER SCREWS CUSTOMER SUPPLIED PRO SERIES WALL PIPE ADAPTER WALL MOUNT PRO SERIES TRANSMITTER STRAPS OR...

Страница 19: ...are kit 1 Cut a 3 30 inch 84 mm square cutout hole in panel 2 Position panel mount gasket over cutout in front of panel and place retainer plate behind panel with its four threaded inserts facing away from back of panel 3 Attach transmitter to retainer plate using its four captive screws NOTE If panel is too thick remove captive screws from transmitter and use longer screws pro vided in hardware k...

Страница 20: ...he installed swivel mount assembly Tighten its two screws to lock the back cover onto the swivel mount assembly NOTE To change mounting angle loosen swivel mount assembly by lifting tab on bottom of swivel nut Posi tion to desired angle and re tighten swivel nut 4 Attach transmitter to back cover using its four captive screws GLI SENSOR COUPLING AND SENSOR APPEAR DIFFERENTLY FOR EACH MEASUREMENT T...

Страница 21: ...te compliance Locate all ferrites as close as possible to the transmitter DC Power Supply Cable GLI 1W0980 two conductor plus shield Connect cable shield to earth ground at the supply end Loop cable 2 1 2 times through ferrite Steward 28B0686 200 Fair Rite Corp 2643665702 or equivalent Analog mA Output Cable four wire hookup only GLI 1W0980 two conductor plus shield Connect cable shield to earth g...

Страница 22: ...cover Wiring Tip Route the sensor cable in 1 2 inch grounded metal conduit to protect it from moisture electrical noise and mechanical damage For installations where the distance between sensor and transmitter exceeds the sensor cable length indirectly connect the sensor to the transmitter using a junction box and interconnect cable NOTE Do not route the sensor cable in any conduit con taining AC ...

Страница 23: ...FIGURE 2 5 Connecting GLI Electrodeless Conductivity Sensor FIGURE 2 5A Install ferrite 23 PRO series Model E3 Electrodeless Conductivity Transmitter ...

Страница 24: ...This page left intentionally blank PRO series Model E3 Electrodeless Conductivity Transmitter 24 ...

Страница 25: ...ight side cable entry knockout hole in the back cover Do not open left side cable entry knockout hole in cover Wiring Tip Use high quality shielded instrumentation cable 5 7 6 1 3 4 2 Loop Power 16 30VDC Class 2 Loop Resistance See nomograph Jumper Required 16 0 600 300 RESISTANCE IN OHMS 100 200 400 500 700 800 30 DC VOLTAGE 18 20 22 24 26 28 50 Ohms Volt LOOP LOAD FIGURE 2 6 Two wire Hookup 3 3 ...

Страница 26: ...ty shielded instrumentation cable Refer to the three wire hookup that meets your application requirements and connect the transmitter accordingly 1 2 3 4 5 6 7 Loop Resistance See nomograph Jumper Required 200 0 14 16 18 RESISTANCE IN OHMS 800 400 600 1000 1200 1400 DC VOLTAGE 20 22 24 26 28 30 50 Ohms Volt LOOP LOAD Loop Power 14 30VDC Class 2 FIGURE 2 7 Three wire Hookup Load Sinking RS 485 Seri...

Страница 27: ...18 20 22 LOOP LOAD 50 Ohms Volt 26 24 28 30 Shield FIGURE 2 10 Three wire Hookup Load Sourcing with RS 485 Serial Communication 3 4 Four wire Hookups In a four wire hookup the transmitter can be wired two ways depending on whether or not RS 485 serial communication is used At least 12 VDC is required for operation 16 VDC with serial communication When using RS 485 consult GLI for Command Set Depen...

Страница 28: ... transmitter accordingly 5 7 6 1 3 4 2 Loop Resistance See nomograph 1000 RESISTANCE IN OHMS 16 14 12 400 200 0 800 600 1400 1200 LOOP LOAD 50 Ohms Volt 26 24 22 20 18 DC VOLTAGE 30 28 Loop Power 12 30VDC Class 2 External Power 12 30VDC Class 2 FIGURE 2 11 Four wire Hookup without RS 485 Serial Communication 5 7 6 1 3 4 2 RS 485 Serial communications B A Loop Resistance See nomograph Loop Power 12...

Страница 29: ... cable through right side cable entry knockout hole in the back cover Panel mounted Transmitter Route cable behind panel to the exposed TB1 terminal strip Integral Sensor mounted Transmitter Route cable through right side cable entry knockout hole in the back cover Do not open left side cable entry knockout hole in cover Wiring Tip Use high quality shielded instrumentation cable Refer to the monit...

Страница 30: ...on MENU Screens These top level and lower level sub menu screens within the three main branches of the menu tree are used to access edit selection screens for configuration EXIT screens at the end of each menu branch enable you to move up one level in the menu tree by pressing the ENTER key This is functionally the same as pressing the ESC key Edit Selection Screens These screens enter values choi...

Страница 31: ...dure to change a value or selection 4 Õ Õ and Ö Ö keys Depending on the type of displayed screen these keys do the following MEASURE Screen Changes readout in continuous loop sequence to show different measurements Menu Screens These keys are non functional Edit Selection Screens Moves cursor left or right to select digit for adjustment with and Ø Økeys 5 and Ø Ø keys Depending on the type of disp...

Страница 32: ...RE screen can show four different readout ver sions To select between them in continuous loop sequence press the Õ Õ or Ö Ö key These are examples of the different versions Ö Ö Ö Ö When set to measure concentration the transmitter can also show an uncompensated conductivity reading corre sponding to the measured concentration as illustrated by this example NOTE When the transmitter returns to its ...

Страница 33: ... Tip For operating convenience the layers within each main branch are organized with the most frequently used function screens at their beginning rather than the function screens used for initial startup 1 With the MEASURE screen displayed pressing the MENU key always shows the branch selection screen Pressing the MENU key with any other type of screen displayed always returns the display to the t...

Страница 34: ... SELECT SIM EXIT SIM SENSOR RESETCONFIGURE RESET CALIBRATE EXIT Menu Structure Tip A menu screen with a horizontal bar symbol at the start of its first line indicates there is a related submenu or edit selection screen A menu screen with a symbol at the start and a È symbol at the end of its second line indicates that you can select other screens within the same layer by pressing the Ø Ø key A sym...

Страница 35: ... screen Edit Selection Screens always have a first line ending with a Pressing the Ø Ø or key changes the value choice enclosed by parenthesis second line on screen Example With this submenu screen displayed pressing the Ø Økey displays this related choice Use arrow keys to edit change the value choice enclosed by parenthesis examples shown above and below A choice can be changed by simply using t...

Страница 36: ...d for Spanish The transmitter is factory set for English To select the other language 1 Press MENU key to display a MAIN MENU screen If the screen is not showing use Ø Ø or key to display it 2 Press ENTER key to display 3 Press Ø Økey until screen appears 4 Press ENTER key to display Use Ø Ø or key to select a language and press ENTER key to enter it NOTE After a language is selected and entered a...

Страница 37: ...FINED table See CONFIG CONC subheading for details WARNING CHANGING THE MEASUREMENT AUTOMATICALLY REPLACES ALL USER ENTERED CONFIGURA TION VALUES WITH FACTORY DEFAULTS After choosing the measurement select the desired display format for the MEASURE screen The selected units and resolution will also appear on all applicable edit selection menu screens 1 With the screen displayed press Ø Ø key once ...

Страница 38: ... and select conductivity range for USER DEFINED table if used D Press ENTER key to display a screen like Use Ø Ø and keys to select a format same choices previously de scribed for conductivity and press ENTER key to enter it TDS Display Format Display format configuration for TDS is always 0 9999 ppm Consequently there is no display for mat screen Configure the required type of temperature compens...

Страница 39: ...ture Compensation for details Only when CONCENTRATION or TDS is selected must the transmitter be further configured If CONDUCTIVITY was selected disregard this subsection no measurement configuration is needed CONCENTRATION Measurement Setup Configure the transmitter with an appropriate table to con vert measured conductivity into displayed concentration If one of the transmitter s BUILT IN chemic...

Страница 40: ...ured conductivity into displayed concentration NOTE A USER DEFINED table must contain at least two data points Pt 1 and Pt 2 but can have up to ten More points improve measuring accuracy Each point must have a conductivity value coordinate shown as X and a corresponding concentration value coordinate shown as Y The conductivity val ues and range are shown in units selected by the DISPLAY COND FORM...

Страница 41: ...transmitter is calibrated you can use the un compensated conductivity MEASURE screen to determine corresponding conductivity values 1 With the screen displayed press Ø Ø key once to display 2 Press ENTER key to display 3 Press ENTER key again to display Use Ø Ø or key to select USER DEFINED which configures the transmitter to use the special concentra tion table you create 4 With USER DEFINED disp...

Страница 42: ...h the Point 1 conductivity value and press ENTER key to enter it D Press Ø Ø key once and Õ Õ key once to display a screen like E Repeat steps 6A through 6D to enter the conduc tivity and corresponding concentration values for each remaining data point in the table F After all X and Y coordinate values are entered for each data point in the table press ESC key once to display G Press ENTER key to ...

Страница 43: ...version factor and press ENTER key to enter it NaCl Built in NaCl conductivity to TDS conversion factor USER DEFINED Conductivity to TDS conversion factor set by user see step 4 4 If USER DEFINED was selected you must set a con ductivity to TDS conversion factor A With the screen displayed press Ø Ø key once to display B Press ENTER key to display a screen like Use arrow keys to adjust to a desire...

Страница 44: ...efaults for LINEAR compensation are 2 00 C slope and 25 0 C reference temperature These values are appropriate for most aqueous solutions Use chemical handbook tables to find values for uncommon solutions To enter different values 1 With the or screen displayed press Ø Ø key until screen appears 2 Press ENTER key to display 3 Press ENTER key again to display a screen like Use arrow keys to adjust ...

Страница 45: ...ame value Use this equation to calculate the ratio value for each corresponding temperature value Ratio Value for each Cond Value at Ref Temp corresponding temperature Cond Value at Noted Temp Example Suppose the uncompensated or raw conductivity values are 100 mS cm at a 25 C refer ence temperature 120 mS cm at 50 C and 70 mS cm at 15 C Using this equation ratio values for each of the correspondi...

Страница 46: ...OTE To switch between X and Y coordinate screens of a data point use Ö Ö and Õ Õ keys To move between data points of an X or Y coordinate use Ø Øand keys A Press ENTER key to display a screen like Use arrow keys to adjust the Point 1 temperature to an appropriate value and press ENTER key to enter it B Press Ö Ökey once to display C Press ENTER key to display Use arrow keys to adjust the Point 1 r...

Страница 47: ...of 60 seconds pro vides maximum smoothing Deciding what sensor signal filter time to use is a compromise The higher the filter time the longer the sensor signal response time will be to a change in the actual process value 1 With the or screen displayed press Ø Ø key once to display 2 Press ENTER key to display a screen like Use arrow keys to adjust to a desired filter time and press ENTER key to ...

Страница 48: ... Repeat procedure until desired notation is displayed 3 Press ENTER key to enter the displayed notation The temperature element type is factory set to PT1000 for automatic temperature compensation defines built in tem perature element in GLI electrodeless conductivity sensors NOTE When PT1000 is selected but the element is not connected to the transmitter a WARNING CHECK STATUS message will appear...

Страница 49: ... for fixed MANUAL compen sation and press ENTER key to enter it GLI tests each sensor to provide a unique certified tem perature T FACTOR because Temperature greatly affects conductivity measurement accuracy The inherent ohm value of the Pt 1000 RTD temperature element varies slightly from sensor to sensor affecting temperature measurement accuracy By entering the sensor s unique T FACTOR the tran...

Страница 50: ... known solution temperature increase the T FACTOR by 3 85 ohms for each C difference Example Suppose the known solution temperature is 50 C and the transmitter reads 53 C due to interconnect cable resis tance Multiply the 3 C difference by 3 85 ohms to get 11 55 Then increase the sensor T FACTOR by adding 11 55 to it and entering that value If due to a shortened sensor cable the transmitter was re...

Страница 51: ...ion returned to its active state The output can be assigned to represent the SENSOR measured conductivity concentration or TDS or meas ured TEMPERATURE 1 With the screen displayed press key not Ø Økey twice to display 2 Press ENTER key to display 3 Press ENTER key again to display Use Ø Ø and keys to select the parameter the output will represent and press ENTER key to enter it Parameter values ca...

Страница 52: ...romise The higher the filter time the longer the analog output signal response time will be to a change in the measured value 1 With the screen displayed press Ø Ø key once to display 2 Press ENTER key to display a screen like Use arrow keys to adjust to a desired filter time and press ENTER key to enter it When a WARNING CHECK STATUS message appears indicating that a system problem may exist the ...

Страница 53: ...mpt to change a setting in the CONFIGURE menu by pressing the ENTER key a displayed notification re quests passcode entry A valid passcode entry saves the changed setting and returns the display to the MAIN MENU branch selection screen An incorrect passcode entry causes the display to momentarily show an error notification before returning to the MAIN MENU branch selection screen There is no limit...

Страница 54: ...h 25 0 C reference temperature CONFIG CONC SELECT TYPE BUILT IN or USER DEFINED BUILT IN CONFIG CONC SET CHEMICAL NaOH 0 16 CaCl2 0 22 HNO3 0 28 HNO3 36 96 H2SO4 0 30 H2SO4 40 80 H2SO4 93 99 H3PO4 0 40 HCl 0 18 or HCl 23 36 Built in NaOH 0 16 chemical concentration table CONFIG CONC USER DEFINED Edit default table by entering up to 10 data points with conductivity X coordinates and corresponding c...

Страница 55: ... or 4 0 to 392 0 F CONDUCTIVITY μS cm 0 mS cm 0 S cm 0 CONC 0 00 or 0 0 TDS 0 ppm TEMPERATURE 0 0 C or 32 0 F SET 20mA VALUE CONDUCTIVITY μS cm 0 200 0 or 0 2000 mS cm 0 2 000 0 20 00 0 200 0 or 0 2000 S cm 0 2 000 CONCENTRATION 0 99 99 or 0 200 0 TDS 0 9999 ppm TEMPERATURE 20 0 to 200 0 C or 4 0 to 392 0 F CONDUCTIVITY μS cm 200 0 or 2000 mS cm 2 000 20 00 200 0 or 2000 S cm 2 000 CONC 99 99 or 2...

Страница 56: ...als between performing maintenance will be influenced by the char acteristics of the process solution and can only be determined by operating experience Since the inherent ohm value of each sensor s Pt 1000 RTD temperature element varies slightly GLI tests each element to provide a unique GLI certified temperature T FACTOR shown on a label attached to the sensor cable If this factor was not previo...

Страница 57: ...to return the analog output to its active state MEASURE screen appears With CAL REPEAT selected press ENTER key to repeat zeroing or calibration Zero the sensor if it is being calibrated for the first time If not disregard this subsection and proceed with calibrating the sensor span Section 4 3 4 4 or 4 5 NOTE When using a new sensor always perform a RESET CALIBRATE using the TEST MAINT menu PART ...

Страница 58: ...sensor from the process immersing it into a con ductivity reference solution and entering a reference for temperature compensation and the known linear per C slope and conductivity value of the reference solution SAMPLE CAL Method This method allows keeping the sensor installed in the process but requires you to obtain a process sample determine its value by labo ratory analysis or comparison read...

Страница 59: ...nsor in the prepared reference solution Important Allow the sensor and solution temperatures to equalize Depending on their tem perature differences this may take up to 30 minutes NOTE Suspend the sensor to prevent it from touching the container Simply laying it into the con tainer will produce calibration error If the sensor is tee mounted use a smaller container Ideally convert a tee of the same...

Страница 60: ...key to confirm This active screen appears showing the measured reference solution value 9 Wait for the reading to stabilize which may take up to 30 minutes Then press ENTER key The PLEASE WAIT screen may appear if the reading is still too un stable After the reading has stabilized this static screen appears showing the last measured value 10 Use arrow keys to adjust the last measured value to exac...

Страница 61: ... the process press ENTER key again to confirm This active screen appears showing the measurement reading NOTE During calibration the analog output is auto matically held at the last measured value 7 Wait for the reading to stabilize which may take up to 30 minutes Then press ENTER key The PLEASE WAIT screen may appear if the reading is still too un stable After the reading has stabilized this stat...

Страница 62: ...reference solu tion or sample concentration value COND CAL Method This method requires removing the sensor from the process immersing it into a con ductivity reference solution entering a reference for temperature compensation temperature and entering the known linear per C slope and conductivity value of the reference solution The conductivity reference solution should have an equivalent uncompen...

Страница 63: ...ze and material as the mounting tee into a calibration container by sealing two of its ends 2 Press MENU key to display a MAIN MENU screen If the screen is not showing use Ø Ø or key to display it 3 Press ENTER key to display 4 Press ENTER key again to display 5 Press ENTER key to display With the sensor in the process or concentration ref erence solution press ENTER key again to confirm This acti...

Страница 64: ...pletes CONC CAL calibration When the transmitter is set to measure concentration but you want to calibrate using a conductivity reference solu tion please refer to Section 4 3 subsection COND CAL Method and follow steps 1 through 13 When the transmitter is set to measure TDS only the TDS CAL method is available to calibrate sensor span This method requires you to immerse the sensor into a properly...

Страница 65: ...ding on their temperature dif ferences this may take up to 30 minutes NOTE Suspend the sensor to prevent it from touching the container Simply laying it into the container will produce calibration error If the sensor is tee mounted use a smaller container Ide ally convert a tee of the same size and material as the mounting tee into a calibration container by sealing two of its ends 2 Press MENU ke...

Страница 66: ... was immersed in a reference solution re install the sensor into the process 10 Press ENTER key again to display the active meas urement reading on the CONFIRM ACTIVE output status screen When the reading corresponds to the actual typical process value press ENTER key again to return the analog output to its active state MEASURE screen appears This completes TDS CAL calibration The transmitter ana...

Страница 67: ...ue to read exactly 4 00 mA on the digital multimeter not the transmitter display and press ENTER key to com plete calibration of the minimum endpoint value 8 After the screen re appears press Ø Ø key once to display 9 Press ENTER key to display a screen like Once again the displayed value is counts not mA that dynamically change as the output is adjusted 10 Now measure the actual maximum mA output...

Страница 68: ...de feature is enabled Section 3 5 you must successfully enter the passcode before attempting to use the TEST MAINT menu screens The system diagnostic capabilities of the transmitter enable you to check the operating status of the transmitter and sensor The MEASURE screen will flash the WARNING CHECK STATUS message when a system diagnostic fail condition has been detected To determine the condition...

Страница 69: ...y holds the analog output at its last measured value for up to 30 minutes to suspend operation of any connected device 1 With the screen displayed press Ø Ø key once to display 2 Press ENTER key to immediately hold the analog output HOLD OUTPUT ENTER TO RELEASE screen appears acknowledging hold is applied NOTE If the keypad is not used within 30 minutes the analog output will automatically change ...

Страница 70: ... key The EPROM VERSION function checks the version of firm ware used in the transmitter 1 With the screen displayed press Ø Ø key until screen appears 2 Press ENTER key to view the EPROM version screen 3 To return to the previous level of the TEST MAINT menu branch press ESC key or ENTER key The SELECT SIM function selects a type of simulated measurement It is used in conjunction with the SIM SENS...

Страница 71: ...key once to display 2 Press ENTER key to display a screen like NOTE The analog output signal is now active It has a mA value that corresponds to the measurement value shown on this screen 3 Use arrow keys to adjust the displayed simulation value to the desired value 4 To remove the simulated output and return to the previ ous level of the TEST MAINT menu branch press ESC key or ENTER key The RESET...

Страница 72: ...that reset has occurred 4 To return to the previous level of the TEST MAINT menu branch press ESC key or ENTER key The RESET CALIBRATE function resets all stored calibra tion settings but not configuration settings to factory set defaults 1 With the screen displayed press Ø Ø key until screen appears 2 Press ENTER key to display the RESET CALIBRATE ARE YOU SURE screen asking if you really intend t...

Страница 73: ...ically cali brate the transmitter to maintain measurement accuracy Maintenance Tip Upon startup frequently check the system until operating experience can determine the optimum time between calibrations that provides accept able measurement results Calibrate the transmitter using a method described in PART THREE Section 4 3 4 4 or 4 5 Calibrating with old con taminated or diluted reference solutio...

Страница 74: ...transmitter connect a 1000 ohm resistor between Ter minals 4 red and 5 yellow on TB2 2 Connect a 100 000 ohm resistor between Terminals 1 white and 7 green on TB2 3 Reconnect DC power to the transmitter 4 Verify that the transmitter conductivity reading is be tween 5 00 and 50 00 mS cm Also verify that the temperature reading is between 10 and 10 C If these readings are achieved the transmitter is...

Страница 75: ...ore returning a transmitter for repair Many problems can be diagnosed and resolved over the telephone GLI will issue a Return Material Authoriza tion RMA number for a transmitter being returned All re turned transmitters must be freight prepaid and include 1 A clearly written description of the malfunction 2 Name of person to contact and the phone number where they can be reached 3 Proper return a...

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