Sensor selection, 1 sensor connections 3. electrical connections, Cdtx-90 – Omega CDTX-90 User Manual

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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


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.

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 μS (10 kΩ to 18 MΩ)

Use the CDCE-90-001 for all resistivity requirements

CDCE-90-01 (0.1 cell): 1 to 1000 μS

CDCE-90-1 (1.0 cell):

10 to 10,000 μS

CDCE-90-10 (10.0 cell): 100 to 200,000 μS

CDCE-90-20 (20.0 cell): 200 to 400,000 μS

(18 MΩ)

(10 kΩ)

CDCE-90-001

CDCE-90-20

Conductivity Range (µS)

CDCE-90 Series Sensor Ranges

Sensor Models

Ultra-

Pure

Rinse

Pure

CDCE-90-1

CDCE-90-10

CDCE-90-01

0.055 1 10

100

200 1,000

10,000

200,000

400,000

CDTX-90

≤ 100 ft. (30 m)

Conductivity/Resistivity

62.50 uS/cm

25.0 °C

ENTER

14
13
12
11

Shield (Sensor Gnd)
Black (Iso Gnd)
White (Temp In)
Red (Signal In)

CDTX-90-2 Terminals

CDCE-90 Series Standard and Certified Cells

14
13
12
11

Shield (Sensor Gnd)
Black (Iso Gnd)
White (Temp In)
Red (Signal In)

CDTX-90-3 Terminals

10

9
8
7

Shield (Sensor Gnd)
Black (Iso Gnd)
White (Temp In)
Red (Signal In)

CDTX-90-1 Terminals

3.1 Sensor Connections

3. Electrical

Connections

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