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3

8850-2 Conductivity/Resistivity Transmitter

3.2 System Power/Loop Connections

-

+

4

3

2

1

4

3

2

1

-

+

4

3

2

1

+
-

+
-

-

+

4

3

2

1

4

3

2

1

4

3

2

1

+
-

-
+

-

+

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

Channel 2

4-20 mA in

Stand-alone application, no current loop used

(NOTE: AUX power must be connected to the power supply for the relays to function.) 

Transmitter

Terminals

Power

Supply

12-24 VDC

Connection to a PLC with built-in power supply

Internal 

PLC Connection

Connection to a PLC/Recorder, separate supply

Example:  Two transmitters connected to PLC/Recorder with separate power supply

PLC or Recorder

Loop Input

4-20 mA

System Pwr Loop -

System Pwr Loop +

AUX Power - 

AUX Power +

Transmitter

Terminals

Power

Supply

12-24 VDC

System Pwr Loop -

System Pwr Loop +

AUX Power - 

AUX Power +

AUX power required for all 8850-2 systems

PLC or Recorder

Channel 1

4-20 mA in

Transmitter 1

Terminals

System Pwr Loop -

System Pwr Loop +

AUX Power - 

AUX Power +

Transmitter 2

Terminals

PLC Terminals 

Loop Input

4-20 mA

Transmitter

Terminals

System Pwr Loop -

System Pwr Loop +

AUX Power - 

AUX Power +

Power

Supply

12-24 VDC

Power

Supply

12-24 VDC

System Pwr Loop -

System Pwr Loop +

AUX Power - 

AUX Power +

Red

Black

Red

Black

Black

Red

Black

Black

Red

Black

Black

Black

Select the sensor with the range that best suits your application 
requirements.
•  2818, 2819-1, 2839-1 (0.01 cell):  0.01 to 100 

μ

S

    (10 

k

Ω

 to 100 M

Ω

)

Use the 2818, 2819-1 or the 2839-1 for all resistivity requirements.

•  2820-1, 2840-1 (0.1 cell): 

1 to 1000 

μ

S

•  2821-1, 2841-1 (1.0 cell): 

10 to 10,000 

μ

S

•  2822-1, 2842-1 (10.0 cell): 

100 to 200,000 

μ

S

•  2823-1 (20.0 cell): 

 

200 to 400,000 

μ

S

μ

S

1 M

Ÿ

10 

μ

S

100 K

Ÿ

1,000 

μ

S

10,000 

μ

S

50,000 

μ

S

200,000 

μ

S

100 

μ

S

10 K

Ÿ

400,000 

μ

S

100,000 

μ

S

0.054 

μ

S

18.3 M

Ÿ

3-2818, 3-2819, 3-2839

3-2820, 3-2840

3-2821, 3-2841

3-2822, 3-2842

3-2823

0.010 

μ

S

100 M

Ÿ

200 

μ

S

(0.01 Cell)

( 0.10 Cell)

(1.0 Cell)

(10.0 Cell)

(20.0 Cell)

Bottled

Water

Brackish Sea Water

(Salinity)

UPW @ 25°C

USP

Cooling Tower
Waste Waters

Deionization Regen. Chemicals

Alkali Cleaners, Acids/Bases

Rinse 
Water

Содержание Signet ProcessPro 8850-2

Страница 1: ...nder ISO 9001 and ISO 14001 CAUTION Remove power to unit before wiring input and output connections Follow instructions carefully to avoid personal injury Contents 1 Installation 2 Specifications 3 El...

Страница 2: ...val Procedure 1 Press the orange terminal lever downward with a small screwdriver to open terminal jaws 2 When fully open remove wire from terminal Wiring Tips Do not route sensor cable in conduit con...

Страница 3: ...Loop AUX Power AUX Power Transmitter 2 Terminals PLC Terminals Loop Input 4 20 mA Transmitter Terminals System Pwr Loop System Pwr Loop AUX Power AUX Power Power Supply 12 24 VDC Power Supply 12 24 VD...

Страница 4: ...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 edite...

Страница 5: ...2 The Key Code is keys in sequence After entering the Key Code the display will show the first item in the selected menu Step 3 Scroll menu with or arrow keys Step 4 Press key to select menu item to b...

Страница 6: ...ut Loop Range S 0 0000 100 00 Select the minimum and maximum values for the 4 to 20 mA current loop output Be sure to modify this setting if you change the Cond Units Relay1 Source Cond Select Conduct...

Страница 7: ...able display and output response Temp Display C Select temperature units C or F Temperature Comp 2 00 Set the percent change in Conductivity caused by a 1 C change in temperature May be from 0 00 to 1...

Страница 8: ...t value If the instrument does not display the correct value Temperature 0 5 C Conductivity 2 of reading service is required A Accuracy Verification with Precision Resistors Electronic Calibration 1 S...

Страница 9: ...ayed temperature and conductivity values in the spaces provided Displayed temperature T1 _______ C Displayed conductivity C1 _______ S 3 Cool the sample solution close to the minimum process temperatu...

Страница 10: ...condition if your process operates at or near the limits of the electrode range Check sensor for correct range Check Decimal setting in OPTIONS menu Check Calibrate menu settings for incompatible SOUR...

Страница 11: ...11 8850 2 Conductivity Resistivity Transmitter Notes...

Страница 12: ...085 CR Sanitary 0 01 SS 1 to 1 1 2 in 3 2819 S1C 159 000 087 CR Sanitary 0 01 SS 1 to 1 1 2 in Certified 3 2819 S2 159 000 086 CR Sanitary 0 01 SS 2 in 3 2819 S2C 159 000 088 CR Sanitary 0 01 SS 2 in...

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