Omega CDTX-90-3 Terminal Connections, Terminals 3-6 Loop Power, Loop Output Loop 2+ System Pwr

Page 7

CDTX-90-3 Terminal Connections

Terminals 3-6: 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

6 Loop 2-

10 Output 2-

5Loop 2+

4

System Pwr

9

Output 2+

Loop -

 

3

System Pwr

8

Output 1-

Loop +

2

PowerAUX

-

 

 

 

 

1

PowerAUX

+

7

Output 1+

Terminals 11-14: Sensor input 11 is conductivity input

12is temperature input

13is the isolated signal ground

14is the sensor earth ground

14 Sensr Gnd (SHIELD)

Iso. Gnd

13 (BLACK)

Temp. IN

12 (WHITE)

Signal IN

11 (RED)

Terminals 1-2: Auxiliary power

Provides DC power to measurement circuit. Required for all CDTX-90 systems.

Terminals 7-10: Open-collector Outputs •Two transistor outputs, programmable as:

High or Low setpoint with adjustable hysteresis

proportional pulse (to 400 pulses per minute maximum)

May be disabled (Off) if not used

Internal open-collector

Outputs

 

output circuit

 

 

S

15

1

_

2

 

 

 

 

D

+

Isolation

 

 

 

CDTX-90-3 System Power/Loop Connections

Stand-alone application, no current loop used

Connection to a PLC with built-in power supply

Transmitter

Terminals

 

 

 

Loop2-

6

 

 

 

 

Loop2+

5

 

 

Sys. Pwr.

4

Loop -

Sys. Pwr.

3

Loop +

AUX

2

Power -

AUX

1

 

Power +

NC NC

Power Supply DC 12 - 24 V

-PowerSupply + PowerSupply

Transmitter

Terminals

 

 

 

Loop2-

6

 

 

 

 

Loop2+

5

 

 

Sys. Pwr.

4

Loop -

Sys. Pwr.

3

Loop +

AUX

2

Power -

AUX

1

 

Power +

 

PLC

 

Terminals

-

Power Supply

Ground

+

SupplyPower

-

Channel 2

4-20 mA in

+

Channel 2

4-20 mA in

-

Channel 1

 

4-20 mA in

+

Channel 1

Internal PLC

4-20 mA in

 

Connection

 

Connection to a PLC/Recorder, separate supply

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

Transmitter

Terminals

Loop2-

6

Loop2+

5

 

Sys. Pwr.

4

 

Loop -

3

Sys. Pwr.

Loop +

2

AUX

Power -

1

AUX

 

Power +

 

DC 12 - 24 V

-

SupplyPower

+

Power

 

Supply

PLC or Recorder

-

Channel 2

4-20 mA in

+

Channel 2

4-20 mA in

-

Channel 1

4-20 mA in

+

Channel 1

4-20 mA in

 

Loop2-

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Loop2+

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sys. Pwr.

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loop -

 

 

 

 

 

 

 

 

DC 12 - 24 V

 

 

 

 

 

 

 

 

 

 

 

Sys. Pwr.

3

 

 

 

 

 

 

 

 

 

Loop +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

Power

AUX

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

Supply

 

Power -

 

 

 

 

 

 

 

 

 

 

 

 

 

+

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

AUX

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply

 

Power +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLC or Recorder

 

Loop2-

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

-

Channel 4

 

 

Loop2+

5

 

 

 

 

 

 

 

 

Transmitter

 

 

 

 

 

 

 

 

 

 

+

Channel 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

Channel 3

 

Sys. Pwr.

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loop -

 

 

 

 

 

 

 

 

+

Channel 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sys. Pwr.

3

 

 

 

 

 

 

 

 

-

Channel 2

 

 

 

 

 

 

 

 

 

 

Loop +

 

 

 

 

 

 

 

 

+

Channel 2

 

 

 

 

 

 

 

 

 

 

AUX

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

-

Channel 1

 

Power -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUX power required for all CDTX-90 systems.

 

 

 

 

 

+

Channel 1

 

AUX

1

 

 

 

 

 

 

 

 

 

 

Power +

 

 

 

 

 

 

 

 

 

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Contents User’s Guide Internet e-mail info@omega.com Specifications InstallationSensor Connections Electrical Connections Sensor SelectionCDTX-90-1 Terminal connections CDTX-90-1 System Power/Loop ConnectionsTerminals 5-10 Relay Outputs CDTX-90-2 Terminal ConnectionsLoop System Pwr Output Loop + Terminals 3-6 Loop PowerCDTX-90-3 Terminal Connections Loop Output Loop 2+ System PwrCDTX-90 Series View Menu Finished Editing? Made an Error?Step CDTX-90-1 Calibrate Menu Contrast CDTX-90-1 Options MenuCDTX-90-2 Calibrate Menu CDTX-90-2 Options Menu CDTX-90-3 Calibrate Menu CDTX-90-3 Options Menu Settings will repeat for Loop 2 and OutputRequirements Calibration ProcedureCalibration with Nist Traceable Solutions Temperature CoefficientTroubleshooting Page WARRANTY/DISCLAIMER OMEGA…Of Course