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51

9900 Transmitter

N

O AVERAGING, NO SENSITIVITY

With SENSITIVITY set to 0 (zero) and AVERAGING set to OFF (0 seconds), the 9900 responds immediately to

every shift in the process. The dashed red line represents the actual output of the sensor in varying conditions.

AVERAGING ONLY

With SENSITIVITY still set to zero and AVERAGING set to MED or HIGH the rate is stabilized, but a sharp change

in rate is not represented for 8 to 32 seconds or longer.

AVERAGING AND SENSITIVITY

With SENSITIVITY at 50 and AVERAGING set to MED or HIGH, the rate is stabilized, while a sudden shift in

fl

ow

rate exceeding 50 units of measure will be displayed immediately.

NOTE:

The SENSITIVITY function applies only to FLOW.

The SENSITIVITY function has no effect if the AVERAGING function is set to OFF.

5 s

0 s

10 s

15 s

20 s

25 s

30 s

35 s

Averaging is different depending on the measurement type.
Seconds to 99.5% of Final Value for Low, Med, and High are:

Sensor Type

Low

Medium

High

Flow

10

40

120

pH

2

4

12

ORP

2

4

12

Cond/Res

4

6

12

Pressure

4

10

30

Level/Volume

4

10

30

Temperature

3

10

30

4 to 20 mA

4

10

30

Salinity

4

6

12

In Conductivity/Resistivity, the logarithmic (LOG) mode can be used when a very large measurement range is required,
yet high resolution is needed at the low end (e.g. in a clean-in-place application where a high-resolution conductivity
reading is needed at the low end, while a very high conductivity reading is needed when a cleaning cycle is in progress).

Only two parameters need to be set up, the starting or base conductivity value (4 mA SETPNT) and the ending or
maximum conductivity value (20 mA SETPNT). The 4 mA setpoint may be larger than the 20 mA point (reverse span).

What equation should be put in the PLC?

Conductivity = 10

n

n

= (mA input – 4.0) ×

(Log

10

20 mA setpnt – Log

10

4 mA setpnt)

+ Log

10

4 mA setpnt

16 mA

If only

fi

xed thresholds are of required, they can be calculated in mA. Then the mA value can be checked directly.

Inside the 9900 the following equation is used:

mA = (Log

10

Conductivity – Log

10

4 mA setpnt) ×

16

+ 4

(Log

10

20 mA setpnt – Log

10

4 mA setpnt)

NOTE:

If ADJUST 4 mA or ADJUST 20 mA is used, the mA value can be affected. To prevent any problems the adjust function
should only be used to get exactly 4.0 and 20.0 at the PLC. The 9900 is accurate and the adjust functions are only needed
to compensate for an offset due to noise or a not-so-accurate PLC input card.

The error value of either 3.6 mA or 22 mA should be tested

fi

rst before applying the conductivity equation.

Appendix

LOG Current Loop Output

Averaging

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Содержание 9900

Страница 1: ...ompatible with all GF Signet products listed in the column to the right pH and ORP electrodes require the Signet 2750 2751 DryLoc Sensor Electronics sold separately Conductivity Resistivity or Salinity measurement requires either the optional Direct Conductivity Resistivity Module part number 3 9900 394 or the Signet 2850 Conductivity Resistivity Sensor Electronics sold separately NOTE If using th...

Страница 2: ...utilize the most appropriate PPE during installation and service of Signet products NOTE Technical Notes Highlights additional information or detailed procedure Thank you for purchasing the Signet line of Georg Fischer measurement products If you would like to register your product s you can now register online in one of the following ways Visit our website www gfsignet com Under Service and Suppo...

Страница 3: ...ng pins and push module firmly into place then attach with screw s except H COMM Module Relay Module Panel Mount Only Conductivity Resistivity Module H COMM Module Base Unit H COM DC Power Loop Voltage Rating 5A VAC 5A 30 VDC 3 9900 394 Cond Res Module 3 9900 393 Relay Module CAUTION Exercise care when installing modules Do not bend connecting pins To remove modules Remove power from the 9900 For ...

Страница 4: ...wo dry contact relays In addition to the standard programmable Open Collector output in the base unit the Panel Mount version of the 9900 has a slot for an optional Relay Module which adds two programmable dry contact relays The Open Collector output in the base unit uses the Relay 1 setting in the menus If the optional Relay Module is installed these are assigned to relays 2 and 3 in the menus Dr...

Страница 5: ...0 m 100 ft 2839 2842 sensors come with a cell constant certificate to improve the accuracy of the sensor measurements see page 38 Signet Conductivity Module cannot operate when using loop power and requires an external DC power supply to be used with the 9900 Transmitter see Power Wiring pg 17 3 9900 395 H COMM Module DC Power Loop Voltage Loop Voltage H COMM Module DC Power Cond Res Module SHIELD...

Страница 6: ... be powered using Loop Power or DC Power in the 9900 base unit Independent settings for the loop currents of the Output Module and 9900 base unit Error Loop Adjustments etc The Primary or Secondary if applicable measurement of a compatible sensor can be selected as the loop source The same source Primary or Secondary measurement can be used for Loop 1 in the 9900 base unit and Loop 2 in the Output...

Страница 7: ...d remove Field Mount Installation Field mounting requires a separate mounting kit The 3 8050 Universal Mount Kit the 3 8051 or 3 8052 Integral Mount Kits and the 3 9900 396 Angle Adjustment Adapter Kit enable the transmitter to be installed virtually anywhere Detailed instructions for field installation options are included with the 3 8050 3 8051 and 3 8052 adapter kits see Ordering Information se...

Страница 8: ...ntry points to prevent moisture damage Only one wire should be inserted into a terminal Splice double wires outside the terminal or use appropriate wire ferrule not to exceed 2 mm 0 08 in diameter System Start up Step 2 Wire the transmitter for all connections with the power off Keep any 4 to 20 mA and relay actuated output devices that are connected to it offline at this time Connect the sensors ...

Страница 9: ...13 The maximum allowable cable length for sensors with frequency output is dependent upon the output signal strength of the sensors themselves and the degree to which the signals are susceptible to EMI or noise This is largely a function of whether the sensors are self powered 515 8510 and 525 or powered by an external source The input terminals on the 9900 carry frequency data signals from the se...

Страница 10: ... with Relay module When connecting a non Signet sensor to the 9900 the sensor s 4 to 20 mA signal must be converted to Digital S3 L The 8058 i Go Signal Converter accepts any 4 to 20 mA signal and converts it into Digital S3 L 1 Wire the 8058 between the 4 to 20 mA loop source and the 9900 Digital S3 L input terminals see page 14 2 In the 9900 INPUT TYPE menu see System Setup Menu discussion page ...

Страница 11: ... X X X X X X 2610 41 X X X 2610 8058 X X X X X 2724 2726 X X X X X 2734 2736 X X X X X 2750 X X X X X X 2751 X X X X X 2756 2757 X X X X X 2764 2767 X X X X X 2774 2777 X X X X X 2819 2823 X X X X X 2839 2842 X X X X X 2850 X X X X X 4150 8058 X X X X X U1000 X X X X X A minimum of 24 VDC Loop Power is required for the 2750 Loop powered systems cannot power both an H COMM Module and pH sensor If u...

Страница 12: ...tion Technical Notes Wiring terminals on the 2537 are rated for 16 to 22 AWG wires The cable must be 7 mm to 10 mm in diameter 0 275 in to 0 394 in to seal properly in the liquid tight connector The conduit ports have inch NPT threads After routing the cables seal the port with a liquid tight conduit connector 3 9000 392 1 or with conduit The 2537 models can connect to the 9900 via a relay frequen...

Страница 13: ...w regardless of the flow direction 5 VDC power required by the 2551 2552 is supplied by the 9900 No additional power is required Connect the silver wire shield to earth ground in case of EMI noise interference If EMI noise interference continues disconnect silver wire shield from 9900 2552 Technical Notes The 2552 outputs an open collector frequency signal that can be connected to the 9900 2551 Te...

Страница 14: ...Loop2 4 3 2 1 6 5 4 7 8 9 Loo p1 PW R G F N C S L DA TA 3 Loo p2 PW R Sig ne t 805 8 8058 2 7 8 9 N C S L DATA 3 close up 8058 2 DATA GND V SHLD BLACK WHITE RED 9900 S3 L Inputs Technical Notes Use three conductor shielded cable for sensor cable splices up to 305 m 1000 ft max Maintain cable shield through cable splice Route sensor cable away from AC power lines Connect the silver shield wire to e...

Страница 15: ... When using the 8058 2 with the 9900 connect the loop power supply to 8058 2 Loop 1 inputs ONLY as shown in the figure See the 8058 manual for more information Technical Notes The cable length from the 8058 to the 9900 must not exceed 60 m 200 ft PWR LOOP LOOP PWR DATA GND V SHLD BLACK BLACK BROWN RED WHITE RED 3 2 1 6 5 4 7 8 9 Loop1 PWR N C S L DATA 3 Loop2 PWR GF SIGNET 24 VDC Power Supply 7310...

Страница 16: ...stripped to a length of 6 mm 0 25 in Ensure that the watertight seal is maintained after the terminal box has been wired for operation If any of the bulkheads are not tightened properly around a cable or plug the ratings of the instrument will be jeopardized and there is a possibility of creating a shock hazard Do not run 4 to 20 mA cables in the same conduit as power Signet Turbidimeter ENTER via...

Страница 17: ...Blue Black ProcessPro for reference only 9900 Power Supply 10 8 to 35 2 VDC PLC or Recorder Loop Input 4 to 20 mA PLC or Recorder Loop Input 4 to 20 mA Connection to a PLC Recorder separate supply 4 3 2 1 PWR PWR Loop Loop Red Black 9900 Terminals System Pwr Loop System Pwr Loop AUX Power AUX Power Power Supply 12 to 24 VDC Transmitter Terminals Black Red PLC or Recorder Loop Input 4 to 20 mA Proc...

Страница 18: ...ng PWR PWR Loop Loop OC OC Power Supply V Gnd Alarm with NORMAL set to OPEN If PLC needs 0 logic input when relay is not energized set NORMAL to CLOSED in the RELAY menu when using the Open Collector R1 with NPN style wiring PWR PWR Loop Loop OC OC Pull Up Resistor ȍ Power Supply 9 WR 9 Gnd PLC Gnd Input NPN Style Wiring OC Pull Down Resistor ȍ 3 5 3 5 Loop RRS 2 PLC Gnd Input Power Supply 9 WR 9 ...

Страница 19: ...tion regulated power supply not supplied is recommended The current through the Open Collector switch also must be limited Typical Open Collector outputs allow only for 10 to 50 mA switch current Exceeding this current limit can burn out the Open Collector output components immediately Load and Pull Up Down Resistor Considerations By utilizing basic arithmetic and Ohm s Law the safe limits of load...

Страница 20: ... can stay energized for a set length of time after the process value goes above or below the setpoint The relay will stay on for the CYCLE TIME and then turn off even if the process value is still above or below the setpoint The cycle will not repeat until the process value goes below or above the setpoint minus the hysteresis after the relay times out In FLOW Cycle High activates the relay each t...

Страница 21: ...rocess value the maximum pulse endpoint and the programmed pulses minute The pulse rate will change as the process value changes and approaches the programmed endpoint This functionality can be used to precisely control the process The starting point endpoint and maximum pulse rate are selectable in the RELAY menus NOTE Relay LEDs are not lit in PULSE mode In the example The output will be 0 pulse...

Страница 22: ... automatically varies the ratio of ON time to OFF time proportional to minimum and maximum range settings The relay period is the sum of the time a relay is ON and the time it is OFF Relay pulse width is the time the relay is ON The 9900 must be programmed with the relay period and with the low and high setpoints NOTE The PWM mode is not used for Pressure applications NOTE Relay LEDs are not lit i...

Страница 23: ...elay R2 Indicator LED Backlight Sensor do not block Warning LED Bar Graph Units of Measure GPM pH sec etc Value Label Menu Indication Menu Navigation Keys Mechanical Relay R3 Indicator LED All possible segments shown in this illustration The instrument s software controls which segments are shown at any particular time Only the bar graph and GF logo are visible when the unit is turned off Warning ...

Страница 24: ...ter MENU mode 2 Press to move to the desired menu then press ENTER to select it Password may be required 3 Press or to select the desired menu item for editing 4 Press to edit the value selection 5 Press ENTER to store the new value selection 6 Press or to select another menu item if desired Repeat steps 3 5 as required 7 Press to select a different menu to edit Repeat steps 2 5 as required 8 When...

Страница 25: ...ly use the and keys to select your sensor type As you scroll through the available sensor types press to select the desired sensor and then press ENTER You may change sensor type after initial power on if the sensor type is changed after your 9900 is already in service Enter the INPUT menu scroll to TYPE press and scroll to select the desired sensor type you may be prompted for your password Press...

Страница 26: ...password is necessary to change display selection Output settings cannot be edited from the View Mode The display will return to the VIEW mode if no button is pressed for 10 minutes Error Handling Errors occurring while in the VIEW Mode show a specific message e g CHECK SENSOR This message is displayed every 10 seconds and stays on for 5 seconds Once the error is resolved or cleared the error mess...

Страница 27: ...d 4 mA output 5 digits max Default 0 ORP 999 ALL Not shown in COND RES LOG Mode Set value corresponding to desired 20 mA output 5 digits max Defaults 100 Flow Cond Res Temp 14 pH 1000 ORP 10 Lvl Prs 5 4 to 20 mA 80 Sal ALL Set desired LOOP output value when sensor error e g bad sensor broken wire is detected Select 3 6 mA 22 mA Default 22 ALL Allows fine tuning to compensate for errors in other eq...

Страница 28: ...ponding indicator lights do not light up in PROP PLS and PWM modes The LEDs light only when the Test Relay options are selected FLOW only Shown if CYC HIGH or VOL PLS mode Amount of accumulated flow that must be counted before a pulse is sent out Relay turns on if flow volume exceeds this value Set desired value Default 100 00 ALL Shown if LOW HIGH WIND IN OUT CYC LOW HIGH or USP mode Hysteresis p...

Страница 29: ...Set time in seconds up to 99999 for relay to remain on See discussion on page 20 FLOW only Shown only if VOL PULS mode Amount of accumulated flow that must be counted before a pulse is sent out Set value FLOW only Shown only if VOL PULS mode Set time value for one pulse width ALL except PRESSURE and FLOW Shown only if PWM mode Set time value for one complete pulse cycle relay ON time relay OFF tim...

Страница 30: ...on Select or Default FLOW only Set the decimal to the best resolution for the Permanent Totalizer display The display will automatically scale up to this resolution Select or Default COND RES only Displays mS or μS as set in COND UNITS in INPUT Mode Set ON OFF Default OFF FLOW only Locks the TOTALIZER output Select OFF ON Does not affect Permanent Totalizer Default OFF ALL Select STD CODE Default ...

Страница 31: ...Totalizer as a multiple of the volume unit of the K Factor Min 0 0001 max 999999 Cannot be zero Default 1 0000 Select to calibrate using Rate method see Appendix Select to calibrate using Volume method see Appendix Enter date of calibration mm dd yyyy and initials of calibrator ii VIEW Mode Menu CAL Menu Display the flow rate and the resettable totalizer Press to reset the totalizer If Reset is lo...

Страница 32: ...later Select Permanent or Resettable Totalizer as secondary value NOTE Totalizer units are transmitted as unit code 240 via HART communication Dampens display output and relay response rates Select Low Med High OFF See discussion in Appendix Default OFF The Sensitivity setting determines how the 9900 responds to sudden changes in the flow rate The value is expressed in units of measurement If the ...

Страница 33: ...age will be displayed until the measurement is completed 2751 preamp with memory chip enabled sensors only 9900 Generation IV or greater Press to access sensor data stored in sensor memory chip NOTE Pressing or changing to a sensor without a memory chip while viewing SENSOR DATA will return the 9900 to the top VIEW mode display current pH measurement 2751 preamp with memory chip enabled sensors on...

Страница 34: ...ys from activating while making adjustments and relays in PULSE mode will suspend pulsing 4 to 20 mA output is held until the user exits the CAL menu Select YES NO Default NO CAL AT INSTRUMENT only Press to start the EasyCal process You will be prompted to enter your password See pH EasyCal procedure in the Appendix CAL AT INSTRUMENT only Applies a linear offset to the pH measurement The ideal val...

Страница 35: ...or changing to a sensor without a memorychip while viewing SENSOR DATA will return the 9900 to the top VIEW mode display current ORP measurement 2751 preamp with memory chip enabled sensors only 9900 Generation IV or greater Sub menu of stored sensor data accessed by pressing on the above SENSOR DATA menu SENSOR DATA includes Sensor Serial Number S n Sensor Model Number MOD ORP Slope ORP Offset To...

Страница 36: ...rage value of your process to ORP STANDARD For two point calibrations assign the min or max value of your process to ORP STANDARD See ORP Calibration procedures in the Appendix CALAT INSTRUMENT only Applies a slope to the ORP measurement The ORP SLOPE is used for two point calibration along with the ORP STANDARD If you applied the min value of your process to the ORP STANDARD then apply the max va...

Страница 37: ... Procedure in the Appendix Shows CONDUCTIVITY on bottom line when user presses any button the live value is frozen and the user edits that value If bad cal returns ERR TOO LARGE TO CALIBRATE See Manual Cal procedure in Appendix Shows TEMPERATURE on bottom line when user presses any button the live value is frozen and the user edits that value If bad cal returns ERR TOO LARGE TO CALIBRATE Resets Co...

Страница 38: ...he information label on the sensor Shown if CELL CONSTANT CUSTOM See NOTE below Select C F Default C Select μS mS PPM PPB KOhm or MOhm Default μS NOTE In USP Relay Mode TEMP COMP must be set to NONE and Unit Of Measure must be set to μS If the COND UNITS selection is PPM or PPB set the ratio of Total Dissolved Solids to μS Default 0 50 Dampens display output and relay response rates Select Low Med...

Страница 39: ...n to factory default After pressing select YES NO Enter date of calibration mm dd yyyy and initials of calibrator II INPUT Menu Enter string up to 13 characters optional Default PRESSURE Enter units of pressure measurement Select PSI BAR or KPa Default PSI Dampens display output and relay response rates Select Low Med High OFF see discussion in Appendix Default OFF Signet strongly recommends leavi...

Страница 40: ... LEVEL on bottom line When user presses any key the live value is frozen and the user edits that value Returns either GOOD CAL or LEVEL OFFSET TOO LARGE Resets calibration to factory default After pressing select YES NO Enter date of calibration mm dd yyyy and initials of calibrator ii VIEW Mode Menu Displays the Volume value on the bottom line of the screen when LVL is the MAIN MEAS selection in ...

Страница 41: ... scale value 100 in units of measure Default 100 00 Enter the specific gravity of the fluid at normal operating temperature This setting is required only if the level measurement is made by a pressure sensor or if kg or lb volume units are selected Default 1 0000 water Enter the distance from sensor location to the Zero reference point in the vessel see discussion in Appendix Displayed in units of...

Страница 42: ... external reference Resets Temperature Calibration to factory settings After pressing select YES NO Enter date of calibration mm dd yyyy and initials of calibrator ii INPUT Menu Enter string up to 13 characters optional Default TEMPERATURE Select C or F Default C Dampens display output and relay response rates Select Low Med High OFF See discussion in Appendix Default OFF VIEW Mode Menu Displays t...

Страница 43: ...max value of your process to STANDARD Applies a slope to the measurement The SLOPE is used for two point calibrations along with the STANDARD above If you assigned the min value of your process to the STANDARD then assign the max value to the SLOPE Else assign the min value to the SLOPE The slope and standard values must be at least 0 1 units apart Resets Standard and Slope calibration to factory ...

Страница 44: ...INT and set to your desired value The 2610 is factory set for a 0 to 20 mg L output Press ENTER when done 12 Press both and simultaneously to return to the Menu 13 Press twice to select the OPTION menu and press ENTER 14 Press twice to select SET BAR MIN Change this option if desired The 2610 is factory set for a 0 to 20 mg L output Press ENTER when done 15 Press to select SET BAR MAX Change this ...

Страница 45: ...o a known standard external reference Provides a maximum 20 C offset to match to a known standard external reference Resets Salinity calibration to factory settings After pressing select YES NO Resets Temperature calibration to factory settings After pressing select YES NO Enter date of calibration mm dd yyyy and initials of calibrator II VIEW Mode Menu Displays temperature at the sensor Displays ...

Страница 46: ... from the information label on the sensor Shown if CELL CONSTANT CUSTOM Select C or F Default C Dampens display output and relay response rates Select Low Med High OFF See discussion in Appendix Default OFF Select temperature compensation NONE LINEAR Default LINEAR For LINEAR temperature compensation select a per ºC slope Maximum slope setting is 9 99 per ºC If Temperature Compensation setting is ...

Страница 47: ...on no longer exists when the TEST is performed The timer will restart if the condition still exists CAL Menu YES prevents relays from activating while making adjustments and relays in PULSE mode will suspend pulsing Output is held until the user exits the CAL menu Select YES NO Default NO Allows user to initiate the optional calibration process NOTE Dissolved Oxygen sensors are calibrated at the f...

Страница 48: ...value to match application Salinity 0 42 PSU Units in Practical Salinity Unit PSU Fresh water 0 00 PSU Default 0 00 mBAR 1013 2 BAROMETRIC Manually set Barometric value to match application altitude above or below sea level 506 62 1114 7 mBAR Default 1013 2 sea level Select C or F Default C Dampens display output and relay response rates Select Low Med High OFF See discussion in Appendix Default O...

Страница 49: ...operating on loop power Connect 9900 to 10 8 to 35 2 VDC power Relay Module installed incorrectly Remove and reseat relay module Wrong settings in RELAY menu Use test relay to verify relay operation then check relay settings Relay LEDs inoperative 9900 operating in Loop Power Use DC power Check relay states in VIEW mode for status Open Collector R1 or Relay R2 or R3 always on Hysteresis value too ...

Страница 50: ...r cap Replace Cap Dissolved Oxygen sensor cap has expired Install new Dissolved Oxygen sensor cap Broken Glass 2751 Only pH ORP sensor glass has been damaged causing very low impedance Visually inspect pH ORP sensor for cracked and or chipped glass Hi Impedance 2751 Only The measured pH sensor impedance is above the high impedance level Visually inspect the pH electrode and clean if necessary Elec...

Страница 51: ...can be used when a very large measurement range is required yet high resolution is needed at the low end e g in a clean in place application where a high resolution conductivity reading is needed at the low end while a very high conductivity reading is needed when a cleaning cycle is in progress Only two parameters need to be set up the starting or base conductivity value 4 mA SETPNT and the endin...

Страница 52: ...ove the fluid surface the 9900 will display a negative level measurement Sensor Location point SLOC The point on the level sensor where the measurement is taken The pressure sensor measures from the centerline of the diaphragm Offset O The distance from Z to SLOC Enter a positive value in the Calibrate menu if the sensor is located above Z Enter a negative value in the Calibrate menu if the sensor...

Страница 53: ...pt the sensor measurement of the Level while you assign a volumetric value to each custom point wet configuration Enter from 3 to 10 custom points to link level and volume values The first custom point must be the lowest fluid level in the vessel Each successive point must be greater than the preceding point The last point must be equal to or greater than the highest fluid level in the vessel A cu...

Страница 54: ...below Enter the Level if MAN measurement is selected at each custom point in your vessel If AUTO is selected indication will read actual tank level in LEVEL UNITS at that point in your tank Set the Volume if manual measurement is selected at each custom point in your vessel Where X is number of custom points Where X is number of custom points To set AUTO LEVEL MEAS value 1 Pour a known quantity of...

Страница 55: ...69 P SG With pressure in bar Level meters 1 019715 P SG Mass Conversion m D SG V where m mass of fluid D density of water 1000 kg m3 SG Specific Gravity of fluid V Volume of fluid m3 m kg 1000 SG V r h Length A Volume Calculations Vertical cylinder V π r2 h where r radius of cylinder h height of fluid Rectangular vessel V w l h where w width l length h height Horizontal cylinder V A L where A area...

Страница 56: ... pH buffer pH 4 0 177 mV pH 7 0 0 mV pH 10 177 mV Limit 50 mV Allow for stabilization 30 seconds To exit menus and return to 9 SUHVV Ÿ DQG ź buttons at the same time Display returns to VIEW Mode in 10 minutes To Calibrate Response to accept to accept second buffer calibration To Accept Place electrode tip in second pH buffer Allow for stabilization 30 seconds This procedure simplifies pH calibrati...

Страница 57: ...k Manual Calibration Procedures 1 Point Calibration 1 Set solution standard 2 Point Calibration recommended 1 Set solution standard 2 Set solution slope ENTER 30s 30s ENTER ENTER ENTER Allow for stabilization 30 seconds to several minutes to accept Display returns to VIEW Mode To Calibrate To Change Reading To Set Slope To Set Calibration Date Place electrode tip in pH buffer Place electrode tip i...

Страница 58: ... must not be diluted by rinse water from previous calibrations EasyCal Procedure ORP one point calibration EasyCal is the fastest and simplest periodic calibration method Requires a prepared quinhydrone solution or Light s Solution Saturate 50 mL of pH 7 87 mV or pH 4 264 mV buffers with 1 8 g quinhydrone Premixed Light s Solution 476 mV can be used instead of pH buffers with quinhydrone Acceptabl...

Страница 59: ...water from previous calibrations Single point calibration sets STANDARD only Signet recommends a two point calibration to set SLOPE in addition to STANDARD Quick Manual Calibration Procedures 1 Point Calibration 1 Set solution standard 2 Point Calibration recommended 1 Set solution standard 2 Set solution slope Acceptable ranges for the readings are 80 mV i e 87 80 mV ENTER 30s 30s ENTER ENTER ENT...

Страница 60: ...arge OUT OF RANGE USE MANUAL CALIBRATION will display Calibration is complete Return the system to service Calibration Procedure Conductivity Resistivity AutoCal is the fastest and simplest periodic calibration method Requires prepared buffer of a value appropriate to your process Available buffer values are 10 100 146 93 200 500 1000 1408 8 5000 10 000 12856 50 000 100 000 all values in μS Manual...

Страница 61: ...nd to set the flow rate in the flashing display to match the reference meter Press ENTER when completed 2 The 9900 displays the newly calculated K Factor for your reference If the calculated K Factor is less than 0 0001 or greater than 999999 out of range at either extreme the 9900 displays ERROR NEW KF OUT OF RANGE and returns to RATE CAL If flow is too low to accurately calibrate the 9900 displa...

Страница 62: ... Offset must be 20 C or equivalent Check sensor range Check reference Replace sensor Slope Too Close To Standard 4 to 20 mA Difference in calibration values must be 0 1 units Check sensor Use fresh buffer Use two different buffer values Clean sensor pH Difference in calibration values must be 2 pH units ORP Difference in calibration values must be 30 mV Standard Too Close To Slope 4 to 20 mA Diffe...

Страница 63: ... and conditions are required for a USP relay function 1 In the RELAY menu RELAY MODE must be set to USP 2 In the INPUT menu COND UNITS must be set to μS TEMP COMP must be set to None Example The water temperature is 19 ºC so the USP limit is 1 0 μS The USP PERCNT is set to 40 The relay will be activated when the conductivity value reaches 40 below the 1 0 USP limit or 0 6 μS If the water temperatu...

Страница 64: ...djust 4 mA Allows fine tuning to compensate for errors in other equipment connected to the 9900 Adjust the minimum and maximum current output Adjust 20 mA Allows fine tuning to compensate for errors in other equipment connected to the 9900 Adjust the minimum and maximum current output Supports Multi Drop Mode Allows up to four 9900 Transmitters be installed in Multidrop mode Supports all Universal...

Страница 65: ...eeze tabs grasp the module and pull straight out 3 9900 395 H COMM Module DC Power Loop Voltage PLC Device Optional ammeter recommended for 4 to 20 mA trim only Power Supply 9900 Device Connections Loop Loop Primary HART Master Hand held device Secondary HART Master Red Black Connecting HART with a Loop powered sensor Typical installation Power Supply Loop Loop 250 Load Resistor Hand held device H...

Страница 66: ... for multi drop function reset the Transmitter remove power for five seconds then apply power before use 9900 Connections Loop Loop PLC Device HART Master Hand held device Secondary HART Master Loop Loop Loop Loop Loop Loop Device 1 Device 2 Device 3 Device 4 Red Black Red Black Red Black Red Black Red Black Connecting HART in Multi Drop mode Typical four unit installation NOTE On pages 64 69 the ...

Страница 67: ...he Master due to rounding 3 Use Command 40 Enter Exit Fixed Current Mode to update the 20 00 mA current 4 Using the measured value of your reference instrument either a digital multimeter or the HART master device set the span trim using Command 46 Trim Loop Current Gain The transmitter will then trim its calibration and return the loop current value in the response message The response value may ...

Страница 68: ...code of up to four device variables Command 11 Read Unique Identifier Associated with Tag Returns all identity information associated with the device i e the device type device revision level and Device ID Issued using the tag Command 12 Read Message Read back the message stored in the device See Command 17 Command 13 Read Tag Descriptor Date Reads the tag descriptor and date values contained with...

Страница 69: ...nd 19 Command 17 Write Message Write a message to be stored in the device See Command 12 Command 18 Write Tag Descriptor Date Writes the tag descriptor and date values into the device See Command 13 Command 19 Write Final Assembly Number Writes the final assembly number of the device See Command 16 Command 20 Read Long Tag Read the 32 byte long tag The long tag is separate from the tag that is use...

Страница 70: ...ensor Controller adds a maximum of 150 ms processing delay to the sensor electronics Minimum update period is 100 ms System response is tempered by the display rate output averaging and sensitivity feature Loop Characteristics DC Powered System preferred Max loop impedance 12 V loop power 250 Ω max 18 V loop power 500 Ω max 24 V loop power 750 Ω max Loop Powered System Max loop impedance 12 V loop...

Страница 71: ...alizer 0 00 to 99999999 units Conductivity 0 0000 to 99999 μS mS PPM and PPB TDS kΩ MΩ Cond Temp 99 C to 350 C 146 F to 662 F Temperature 99 C to 350 C 146 F to 662 F Pressure 40 to 1000 psi Level 9999 to 99999 m cm ft in Volume 0 to 99999 cm3 m3 in3 ft3 gal L lb kg Salinity 0 to 99 97 PPT Dissolved O2 0 to 20 mg L 0 to 200 Output Specifications Current Loop Out ANSI ISA 50 00 01 Class H Span 3 8 ...

Страница 72: ... 6682 3104 159 001 713 Freq S3 L Plug 4 Pos Right Angle 6682 3004 159 001 725 Freq S3 L Plug In Line 7310 1024 159 873 004 24 VDC Power Supply 10 W 0 42 A 7310 2024 159 873 005 24 VDC Power Supply 24 W 1 0 A 7310 4024 159 873 006 24 VDC Power Supply 40 W 1 7 A 7310 6024 159 873 007 24 VDC Power Supply 60 W 2 5 A 7310 7024 159 873 008 24 VDC Power Supply 96 W 4 0 A 3 0252 159 001 808 0252 Configura...

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