Omega CDTX-90 manual Electrical Connections Sensor Selection, Sensor Connections

3. Electrical Connections

Sensor Selection

Select the sensor with a range closest to your process minimum and maximum values.

•CDCE-90-001 (0.01 cell): 0.055 to 100 ∝S (10 kΩ to 18 MΩ) Use the CDCE-90-001 for all resistivity requirements

•	CDCE-90-01 (0.1 cell):	1 to 1000 ∝S
•	CDCE-90-1 (1.0 cell):	10 to 10,000 ∝S

•CDCE-90-10 (10.0 cell): 100 to 200,000 ∝S

•CDCE-90-20 (20.0 cell): 200 to 400,000 ∝S

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.

•Sensor cable may not be extended over 100 ft.

Ultra-

CDCE-90 Series Sensor Ranges

Pure

Pure

Rinse

Models

CDCE-90-20

CDCE-90-1

CDCE-90-10

Sensor

CDCE-90-01

CDCE-90-001

0.055

1

10

100

200

1,000

10,000

200,000

400,000

(18 MΩ)

(10 kΩ)

Conductivity Range (µS)

CDTX-90

Conductivity/Resistivity	≤ 100 ft. (30 m)
25.0°C
62.50 uS/cm
ENTER

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.

2

1

3.1 Sensor Connections

CDTX-90-1 Terminals
10	Shield (Sensor Gnd)
	Black (Iso Gnd)
9	White (Temp In)
8
	Red (Signal In)
7
CDTX-90-2 Terminals

14	Shield (Sensor Gnd)
	Black (Iso Gnd)
13	White (Temp In)
12
11	Red (Signal In)
	CDCE-90 Series Standard and Certified Cells

CDTX-90-3 Terminals
14	Shield (Sensor Gnd)
	Black (Iso Gnd)
13	White (Temp In)
12
11	Red (Signal In)

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