GF Signet 8850-2 User Manual

Page 1
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
ENGLISH
3-8850.090-2
CAUTION!
Remove power to unit before wiring input and output connections.
Follow instructions carefully to avoid personal injury.
D-10/01 English
Contents
1. Installation
2. Specifications
3. Electrical Connections
4. Menu Functions
Conductivity/Resistivity
Relay 1
1. Installation
ProcessPro transmitters are available in two styles: panel mount and field mount. The panel mount is supplied with the necessary hardware to install the transmitter. This manual includes complete panel mounting instructions. Field mounting requires a separate mounting kit. The 3-8050 Universal kit enables the transmitter to be installed virtually anywhere. Detailed instructions for field installation options are included with the 3-8050 Universal kit.
1.1 Panel Installation
1. The panel mount transmitter is designed for installation using a 1/4 DIN Punch. For manual panel cutout, an adhesive template is provided as an installation guide. Recommended clearance on all sides between instruments is 1 inch.
2. Place gasket on instrument, and install in panel.
3. Slide mounting bracket over back of instrument until quick-clips snap into latches on side of instrument.
4. To remove, secure instrument temporarily with tape from front or grip from rear of instrument. DO NOT RELEASE. Press quick-clips outward and remove.
96 mm (3.8 in.)
96 mm
(3.8 in.)
FRONT VIEW Field Mount &
Panel Mount
106 mm (4.18 in.)
SIDE VIEW Field Mount
82 mm (3.23 in.)
41 mm
)
(1.6 in.
SIDE VIEW
Panel Mount
Optional Rear Cover
56 mm (2.2 in.)
97 mm (3.8 in.)
92 mm (3.6 in.)
gasket
latch
Panel Mount Installation Detail
panel
terminals
d
n G r
s n
)
e S
D L E
I
H S (
7
N I r
s
n e S
) D E
R (
­t
6
u p
t
r
+
u
w
V
O
P
r s
m
n
e
e t s
y S
­p o
o L
2
m
e t s
y S
+ p o
o L
1
)
S
K
4
C A L
B (
5
r w
P
+
t u p
t u
O
3
mounting
bracket
quick-clips
62.50 uS
25.0°C
Relay 2
ENTER
General
Compatible electrodes: +GF+ SIGNET 3-28XX-1 Standard and
Certified (NIST) Series Conductivity/Resistivity Electrodes
Accuracy: ±2% of reading Enclosure:
Rating: NEMA 4X/IP65 front
Case: PBT
Panel case gasket: Neoprene
Window: Polyurethane coated polycarbonate
Keypad: Sealed 4-key silicone rubber
Weight: Approx. 325g (12 oz.) Display:
Alphanumeric 2 x 16 LCD
Contrast: User selected, 5 levels
Update rate: 1 second
Electrical
Power: 12 to 24 VDC ±10%, regulated, 290 mA max. Sensor input range:
Conductance: 0.055 to 400,000 µS
Resistivity: 10 K to 18.2 M
TDS: 0.023 to 200,000 ppm ( Measurements from 10 M to 18 M (0.055 µS to 0.1 µS) must be performed in solution temperatures from 20 °C to 100 °C. )
Temperature: PT 1000, -25 to 120°C (-13 to 248°F) Current output:
4 to 20 mA, isolated, fully adjustable and reversible
Max loop impedance: 50 max. @ 12 V 325 max. @ 18 V 600 max. @ 24 V
Update rate: 0.5 seconds
Accuracy: ±0.03 mA @ 25°C, 24 V
Relay outputs (2 sets mechanical SPDT contacts):
Maximum voltage rating:
5 A @ 30 VDC, or 5 A @ 250 VAC, resistive load
Hi or Lo programmable with adjustable hysteresis
Pulse programmable (maximum 400 pulses/minute)
Environmental
Operating temperature: -10 to 70°C (14 to 158°F)
Storage temperature: -15 to 80°C (5 to 176°F)
Relative humidity: 0 to 95%, non-condensing
Maximum altitude: 2000 m (6562 ft)
Insulation category: II
Pollution degree: 2
Standards and Approvals
CSA, CE, UL listed
Immunity: EN50082-2
Emissions: EN55011
Safety: EN61010
Manufactured under ISO 9001 and ISO 14001
U.S.A. Patent # 5,708,363
page 1 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 2
3. Electrical Connections
Caution: Failure to fully open terminal jaws before removing wire may permanently damage instrument.
Wiring Procedure
1. Remove 0.5 - 0.625 in. (13-16 mm) of insulation from wire end.
2. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.
3. Insert exposed (non-insulated) wire end in terminal hole until it bottoms out.
4. Release orange terminal lever to secure wire in place. Gently pull on each wire to ensure a good connection.
Wiring Removal Procedure
1. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.
2. When fully open, remove wire from terminal.
Terminals 11-14: Sensor input
Terminals 3 and 4: Loop Power
12-24 VDC ±10% system power
and current loop output.
Max. loop impedance:
50 max. @ 12 V 325 max. @ 18 V 600 max. @ 24 V
System Pwr
4
Loop -
System Pwr
3
Loop +
AUX
2
Power -
AUX Power +
1
10
Relay 2 (NO)
Relay 2
9
(COM)
Relay 2
8
(NC)
Relay 1
7
(NO)
Relay 1
6
(COM)
Relay 1
5
(NC)
11 is conductivity input 12 is temperature input 13 is the isolated signal ground 14 is the sensor earth ground
Sensr Gnd
14
(SHIELD)
Iso. Gnd
13
(BLACK)
Temp. IN
12
(WHITE)
Signal IN (RED)
11
2 1
Terminals 1-2: Auxiliary power
Provides DC power to measurement circuit. Required for all 8850 systems
page 2 of 12
Terminals 5-10: Relay Outputs
• Two SPDT mechanical relays, programmable as:
• High or Low setpoint with adjustable hysteresis.
• Proportional Pulse (400 pulses per minute maximum).
• May be disabled (Off) if not used.
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 3
3.1 System Power/Loop Connections
Stand-alone application, no current loop used
Transmitter
Terminals
Sys. Pwr. Loop -
Sys. Pwr. Loop +
AUX Power -
AUX Power +
4 3 2 1
Power Supply DC 12 - 24 V
Powe r
-
Supply Powe r
Supply
+
Connection to a PLC/Recorder, separate supply
Transmitter
Terminals
Sys. Pwr. Loop -
Sys. Pwr. Loop +
AUX Power -
AUX Power +
4 3 2 1
DC 12 - 24 V
Powe r
-
Supply Powe r
Supply
+
PLC or Recorder
Loop Input
-
4-20 mA in Loop Input
+
4-20 mA in
AUX power required for all 8850 systems
Connection to a PLC with built-in power supply
Transmitter
Terminals
Sys. Pwr. Loop -
Sys. Pwr. Loop +
AUX Power -
AUX Power +
4 3 2 1
Internal PLC Connection
PLC
-
+
-
+
Terminals
Power Supply Ground
Powe r Supply
Loop Input 4-20 mA
Loop Input 4-20 mA
Example: Two transmitters connected to PLC/Recorder
Transmitter 1
Sys. Pwr. Loop -
Sys. Pwr. Loop +
AUX Power -
AUX Power +
Transmitter 2
Sys. Pwr. Loop -
Sys. Pwr. Loop +
AUX Power -
AUX Power +
4 3 2 1
4 3 2 1
with separate power supply
DC 12 - 24 V
Powe r Supply
Powe r Supply
PLC or Recorder
Channel 1 4-20 mA in
-
Channel 1
+
4-20 mA in
Channel 2
-
4-20 mA in
Channel 2
+
4-20 mA in
3.2 Sensor Input Connections
Wiring Tips:
Do not route sensor cable in conduit containing AC power wiring. Electrical noise may interfere with sensor signal.
Routing sensor cable in grounded metal conduit will help prevent electrical noise and mechanical damage.
Seal cable entry points to prevent moisture damage.
Only one wire should be inserted into a terminal. Splice double wires outside the terminal.
Select the sensor with a range closest to your process minimum and maximum values.
2819-1 (0.01 cell): 0.055 to 100 µS (10 k to 18 M)
Use the 2819-1 for all resistivity requirements
2820-1 (0.1 cell): 1 to 1000 µS
2821-1 (1.0 cell): 10 to 10,000 µS
2822-1 (10.0 cell): 100 to 200,000 µS
2823-1 (20.0 cell): 200 to 400,000 µS
Shield (Sensor Gnd)
14
Black (Iso Gnd)
13
White (Temp In)
12
Red (Signal In)
11
Ultra-
Pure
2819-1
Sensor Models
0.055 1 10 100 200 1,000 10,000 200,000 400,000
(18 MΩ)
Pure
Rinse
2822-1
2821-1
2820-1
(10 kΩ)
Conductivity Range (µS)
+GF+ SIGNET Sensor Ranges
2823-1
Terminals
+GF+ SIGNET 28XX-1
Standard and Certified Cells
Conductivity/Resistivity
62.50 uS/cm
25.0°C
100 ft. (30 m)
ENTER
page 3 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 4
3.3 Relay Output
The relays can be used as a switch that responds when the process value moves above or below a setpoint, or to generate a pulse at a rate proportional to the process value.
Low: Relay triggers when process is less than the setpoint. The relay will relax when the process moves above the setpoint plus the hysteresis value.
High: Relay triggers when process is greater than the setpoint. The relay will relax when the process moves below the setpoint plus the hysteresis value.
Proportional Pulsing The relay will generate a 100 mS pulse at the rate defined by settings in the CALIBRATE menu.
In the example below:
The output will be 0 pulses/min. when value is less than 5.
The output will be 50 pulses/min. when value is 7.5.
The output will be 100 when value is greater than 10.
The starting point, endpoint and maximum pulse rate are selectable in the CALIBRATE menu.
Hysteresis
Low Setpoint
High Setpoint
Hysteresis
VIEW menu
Process
Relay energized¤
Relay relaxed
Process
Time
Time
Relay Output Rate:
0 to 100 Pulses/min.
0 pulses
5
Starting point
100 pulses
Pulse rate
10
endpoint
During normal operation, ProcessPro displays the VIEW menu.
When editing the CALIBRATE or OPTIONS menus, ProcessPro will return to the VIEW menu if no activity occurs for 10 minutes.
To select a VIEW display, press the UP or DOWN keys. The selections will scroll in a continuous loop.
Changing the VIEW display does not interrupt system operations.
No key code is necessary to change display selection.
Output settings cannot be edited from the VIEW menu.
View Menu
Display Description
1234.5 µS
+67.89 ºC
The VIEW displays below are temporary. The permanent display will return after 10 minutes
Loop Output:
13.75 mA
Last CAL:
06-30-01
page 4 of 12
Monitor the Conductivity and temperature values from the sensor. This is the permanent display.
Monitor the Loop Current output.
Check the Last Calibration date.
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Conductivity/Resistivity
62.50 uS
25.0°C
Relay 1
Relay 2
ENTER
Page 5
ProcessPro Editing Procedure:
Step 1. Press and hold ENTER key:
• 2 seconds to select the CALIBRATE menu.
• 5 seconds to select the OPTIONS menu.
Step 2. The Key Code is UP-UP-UP-DOWN keys in sequence.
• After entering the Key Code, the display will show the first item in the selected menu.
Step 3. Scroll menu with UP or DOWN arrow keys. Step 4. Press RIGHT ARROW key to select menu item to be edited.
• The first display element will begin flashing.
Step 5. Press UP or DOWN keys to edit the flashing element.
• RIGHT ARROW key advances the flashing element.
Step 6. Press ENTER key to save the new setting and return to Step 3.
Notes on Step 1:
• The View Menu is normally displayed.
• The CALIBRATE and OPTIONS menus require a KEY CODE.
Press & hold for access:
VIEW
ENTER
Notes on Step 2:
If no key is pressed for 5 minutes while display is showing "Enter Key Code", the display will return to the VIEW menu.
2s 5s
CALIBRATE
OPTIONS
Notes on Steps 3 and 4:
• Refer to pages 6 and 7 for complete listing of menu items and their use.
• From the Step 3 display, pressing the UP and DOWN keys simultaneously will return the display to the VIEW menu.
• If no key is pressed for 10 minutes, display will also return to the VIEW menu.
Step 3: Finished Editing?
Press the UP and DOWN keys simultaneously after saving the last setting to return to normal operation.
CALIBRATE: ----
Enter Key Code
CALIBRATE: *---
Enter Key Code
CALIBRATE: **--
Enter Key Code
CALIBRATE: ***-
Enter Key Code
Cell Constant:
Standard >
Cell Constant:
Relay1 Setpnt:
20.0 uS >
First item in CALIBRATE menu
Standard >
Step 3
Step 4
Notes on Steps 5 and 6:
• All output functions remain active during editing.
• Only the flashing element can be edited.
• RIGHT ARROW key advances the flashing element in a continuous loop.
• Edited value is effective immediately after pressing ENTER key.
• If no key is pressed for 10 minutes unit will restore the last saved value and return to step 3.
• Step 6 (pressing ENTER key) always returns you to Step 3.
• Repeat steps 3-6 until all editing is completed.
Step 5: Made an Error?
Press the UP and DOWN keys simultaneously while any element is flashing. This will recall the last saved value of the item being edited and return you to Step 3.
Relay1 Setpnt:
2
0.00 uS
Relay1 Setpnt:
1
0.00 uS
Relay1 Setpnt:
1
0.00 uS
Relay1 Setpnt:
Step 6
Relay1 Setpnt:
19.00 uS >
Step 5
9
1
.00 uS
Relay1 Setpnt:
Saving
ENTER
page 5 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 6
Calibrate Menu
Display
(Factory settings shown)
Cell Constant:
Standard >
Description
Select CUSTOM only if you are connecting a certified conductivity sensor. Select STANDARD for all other systems.
Cell: Standard
1>
Cell: Custom
1.0000 >
Cond Units:
µS>
PPM Factor:
2.00 >
Set:
Temperature >
Set:
Conductivity >
Loop Source:
Cond >
For STANDARD sensors: Select from these options: 0.01, 0.1, 1.0, 10.0 or 20.0.
For CUSTOM sensors: Enter the precise cell constant from the certificate provided with your sensor, or from the information label on the sensor.
Select from these options: µS/cm, mS/cm, k•cm, M•cm, PPB
If the Units selection is PPM, set the ratio of Total Dissolved Solids to µS. The maximum allowable is 3 µS = 1 PPM. The TDS factor can only be set in PPM.
Adjust the temperature of the system based on an accurate external reference.
For use with STANDARD sensors: Perform this single-point wet calibration for most accurate results. Not required for CUSTOM sensors except for periodic system accuracy confirmation. Enter all zeroes to restore factory calibration to TEMP and COND settings.
Select the input (Conductivity or Temperature) source to be associated with the current loop output:
Loop Range: µS
0.0000 100.000 >
Relay1 Source:
Cond >
Relay1 Mode:
Low >
Relay1 Setpnt:
10.0000 µS>
Relay1 Hys: µS
0.5000 >
Relay1 Rng: µS
10.0000 40.0000 >
Relay1 PlsRate: 120 Pulses/Min >
Select the minimum and maximum values for the current loop output. Be sure to modify this setting if you change the Cond. Units.
Select the source (Conductivity or Temperature) for this relay output:
Select the mode of operation for the relay. Options available are High, Low or proportional Pulse. The relay may be disabled (Off) if not in use.
In Low or High Mode, the relay will be activated when the process reaches this value. Be sure to modify this setting if you change the Cond. Units.
The relay will be deactivated at Setpoint ± Hysteresis, depending on High or Low Setpoint selection.
In Pulse mode, set the process values where the proportional pulse will start and where it will reach the maximum rate. Be sure to modify this setting if you change the Cond. Units.
In Pulse mode, set the maximum rate for the proportional Pulse. The 8850 will accept any value from 0 to 400.
Last CAL:
Use this “note pad” to record important dates, such as annual recertification or scheduled maintenance.
06-30-01 >
page 6 of 12
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 7
Options Menu
Display
(Factory settings shown)
Contrast:
3>
Cond Decimal:
****.* >
Averaging:
Off >
Loop Adjust:
4.00 mA >
Loop Adjust:
20.00 mA >
Temp Display:
ºC>
Temperature Comp %: 2.00 >
Description
Adjust the LCD contrast for best viewing. A setting of 1 is lower contrast, 5 is higher. In general, select lower contrast if the display is in warmer ambient surroundings.
Set the decimal to the best resolution for your application. The display will automatically scale up to this restriction. Select *****., ****.*, ***.** **.*** or *.****
OFF provides the most instantaneous response to process changes. Select LOW (4 sec) or HIGH (8 sec) averaging if your process experiences frequent or extreme fluctuations.
Adjust the minimum and maximum current output. The display value represents the precise current output. Adjustment limits:
• 3.80 mA < 4.00 mA > 5.00 mA
• 19.00 mA < 20.00 mA > 21.00 mA Use this setting to match the system output to any external device.
Select ºC or ºF.
Set the percent change in Conductivity caused by a 1ºC change in temperature. May be from 0.00 to 10.00.
Test Loop:
Test Relay1:
Press UP and DOWN keys to manually order any output current value from 3.8 mA to
21.00 mA to test the output loop.
>
Press UP and DOWN keys to manually toggle the relay state.
>
page 7 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 8
Calibration Procedure
This instrument has been electronically calibrated at the factory.
Procedure A verifies the accuracy and linearity of the instrument by simulating temperature and conductivity values with precision
(±0.1%) fixed resistors.
Procedure B is a wet calibration. This procedure uses the sensor input and NIST traceable test solutions. When done correctly, this procedure offers the most accurate system calibration.
A) Accuracy Verification with Precision Resistors (Electronic Calibration):
1. Simulate the Temperature
The temperature input to the 8850 is a PT-1000 thermistor, where 1000 Ohms () is equal to 0 ºC and a change of 3.84 equals
a 1ºC change. (1000 = 0 ºC, 1003.84 = 1.0 ºC, 1007.68 = 2.0 ºC...................1096 = 25 ºC)
Connect a resistor (1000 to 1096 ) between "Temp IN" and "Iso. Gnd" terminals.
Set Temp; Adjust the temperature to exact value based on the measured resistance. (see Editing Procedure, Calibrate menu).
To verify the temperature linearity, connect a second resistor value to the terminals.
If the instrument does not display the correct value, service is required. ( ± 0.5 ºC)
2. Simulate the Conductivity
You may calculate the exact Resistance needed to simulate a specific conductivity value , or you may calculate the exact Conductivity based on a resistor value:
Resistance =
Cell constant e.g. 0.1 Cell = 5,000 or 5 K conductivity (Siemens*) 0.000020 (Siemens*)
Conductivity = Sensor cell e.g. 0.1 Cell = 0.000001 Siemens*
Simulation resistance () 100,000 () or 1µS/cm
(*1 µS = 1 X 10-6 Siemens or 0.000001 Siemens)
Connect the conductivity resistor between the "Signal IN " and "Iso Gnd" terminals.
Set Cond: Adjust the conductivity value based on the resistor value. (see Editing Procedure and Calibrate menu).
Verify the linearity of the instrument by connecting a second resistor of a different value.
If the instrument does not display the correct value (± 2% of reading), service is required.
9 8 7
Iso. Gnd (BLACK)
Temp. IN (WHITE)
Signal IN (RED)
TC resistor
Simulation resistor
B) Wet Calibration with NIST Traceable Solutions:
When using NIST traceable standards, review the temperature information provided with the test solution. Prevent contamination of the test solution. The sensor must be at the temperature specified on the test solution label.
Remove the sensor from the system. Rinse the sensor in a small amount of test solution.
Place the sensor into the test solution.
Place a reference thermometer into the same solution.
Allow sufficient time for the temperature to stabilize.
Set Temp: Adjust the temperature value based on the reference thermometer. (see Editing Procedure.)
Set Cond: Adjust the conductivity value based on the test solution value. (see Editing Procedure.)
Verify the linearity by placing the sensor into a second test solution of a different value.
If the instrument does not display the correct value (Temperature ± 0.5 ºC, Conductivity ± 2% of reading), service is required.
page 8 of 12
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 9
Temperature Coefficient
Conductivity measurement is highly dependent on temperature. Temperature dependence is expressed as the relative change per °C, commonly known as percent/°C change from 25°C, or slope of the solution.
Slopes can vary significantly depending on process solution type. The factory default temperature compensation factor is 2.00%/°C. Process solutions may require adjustment for maximum accuracy. To determine the optimum temperature compensation factor for a process:
1. Disable the 8850 temperature compensation % factor by entering 0.00.
2. Heat the sample solution close to the maximum process temperature. Place sensor in the sample solution allowing several
minutes for stabilization. Access the VIEW menu and record the displayed temperature and conductivity values in the spaces provided:
Displayed temperature: T1 = _______ °C Displayed conductivity: C1 = _______ °C
(Do not use this procedure for solutions from 0.055 µS to 0.1 µS (10 M to 18 M). An internal pure water curve is used for these ranges. The factory default setting of 2.00%/°C should be used.)
3. Cool the sample solution close to the minimum process temperature. Place sensor in the sample solution allowing several minutes for stabilization. Record displayed temperature and conductivity values in the spaces provided:
Displayed temperature: T2 = _______ °C Displayed conductivity: C2 = _______ °C
(A 10% change in conductivity between steps 2 and 3 is recommended.)
4. Substitute recorded readings (steps 2 and 3) into the following formula:
TC Slope =
100 x (C1 - C2)
(C2 x (T1 - 25)) - (C1 x (T2 - 25))
Example: A sample solution has a conductivity of 205 µS @ 48°C. After cooling the solution, the conductivity was measured at 150 µS @ 23 °C. (C1 = 205, T1 = 48, C2 = 150, T2 = 23) The TC is calculated as follows:
TC Slope =
(150 x (48 - 25)) - (205 x (23 - 25)) 3860
100 x (205 - 150) = 5500
=
1.42%/°C
Parts Per Million (PPM) Factor
This feature is only applicable when PPM display units are selected. The programmable PPM Factor is adjustable from 0.01 to
3.00 (factory default = 2.00). Determine the best PPM Factor for a process solution by calculating the solution's conductivity (µS) and the percent of total
dissolved solids (PPM).
PPM Factor =
TDS (PPM) =
Solution conductivity (µS/cm) Total dissolved solids (PPM)
Solution conductivity (µS/cm) PPM Factor
Example: • Solution conductivity = 400 µS/cm
• TDS = 200 PPM (mg/L)
PPM Factor =
400 µS/cm 200 PPM
= 2.00
page 9 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 10
Troubleshooting
Display Condition Suggested SolutionsPossible Causes
"- - - -"
Value Must be less than 3
Value must be greater than 0
"Value must be 400 or less"
Display erratic, shows "0" or "------" intermittently
"Too much Error Check Sensor"
Display is over range. This may be a normal condition if your process operates at/near the limits of the sensor range.
The PPM factor must be a value from
0.00 to 3.00
Custom cell constant cannot be set to 0
Pulse Rate cannot be greater than 400
Aux Power not connected
• Defective or dirty/coated sensor
• Wiring error
• Fluid conductivity too low
• Defective temp element
• Check sensor for correct range.
• Check Decimal setting in OPTIONS menu.
• Check Calibrate menu settings for incompatible SOURCE and RANGE values.
Set a PPM value less than 3.
Set cell constant to a value greater than 0
set a pulse rate value less than 400
Wire 8850 according to diagram (Section 3.1)
• Clean or replace sensor
• Check and correct wiring
• Replace sensor
Technical notes
If a Current Loop is locked at 3.6 mA, the problem is related to the temperature circuit: This occurs only if the 8850 detects a resistance from the temperature sensor that is less than 250 or greater than 2800.
Check the sensor wiring for open/short or poor connections on white (TEMP IN) and black (ISO GND)wires.
The PT1000 temperature device in the sensor is defective.
The transmitter is defective.
Auxiliary Power (terminals 1 and 2) must ALWAYS be connected for the 8850 to operate.
page 10 of 12
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 11
Notes
page 11 of 12‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Page 12
Ordering Information
Mfr. Part No Code Description
3-8850-2 159 000 230 Conductivity/Resistivity transmitter Field mount with relays 3-8850-2P 159 000 231 Conductivity/Resistivity transmitter Panel mount with relays
Parts and Accessories
Mfr. Part No Code Description
3-8050 159 000 184 Universal mounting kit 3-8050.395 159 000 186 Transmitter NEMA 4X cover 3-8052 159 000 188 3/4” Integral mounting kit 3-0000.596 159 000 641 Heavy duty wall mount bracket 3-8050.392 159 000 640 Model 200 retrofit adapter 3-5000.598 198 840 225 Surface mount bracket 3-5000.399 198 840 224 5 x 5 inch adapter plate for +GF+ Signet retrofit 3-8050.396 159 000 617 RC Filter kit (for relay use) 3-9000.392 159 000 368 Liquid-tight connector kit, 3 sets, 1/2 in. NPT 3-9000.392-1 159 000 839 Liquid-tight connector kit, 1 set, 1/2 in. NPT 3-9000.392-2 159 000 841 Liquid-tight connector kit, 1 set, PG 13.5 7300-7524 159 000 687 24 VDC Power Supply 7.5 W, 300mA 7300-1524 159 000 688 24 VDC Power Supply 15 W, 600mA 7300-3024 159 000 689 24 VDC Power Supply 30 W, 1.3 A 7300-5024 159 000 690 24 VDC Power Supply 50 W, 2.1 A 7300-1024 159 000 691 24 VDC Power Supply 100 W, 4.2 A
‡ SIGNET
Signet Scientific Company, 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057 For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): (800) 854-4090
GEORGE FISCHER ‡ Piping Systems
3-8850.090-2/(D-10/01) English © Signet Scientific Company 2001 Printed in U.S.A. on recycled paper
page 12 of 12
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
Loading...