Electrical Connections; Sensor Selection; Sensor Connections - Omega CDTX-90 Series User Manual

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 µS (10 kΩ to 18 MΩ)
Use the CDCE-90-001 for all resistivity requirements
• CDCE-90-01 (0.1 cell):
• CDCE-90-1 (1.0 cell):
• CDCE-90-10 (10.0 cell):
• CDCE-90-20 (20.0 cell):
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.
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.

3.1 Sensor Connections

page 4
1 to 1000 µS
10 to 10,000 µS
100 to 200,000 µS
200 to 400,000 µS
CDTX-90-1 Terminals
Shield (Sensor Gnd)
10
Black (Iso Gnd)
9
White (Temp In)
8
Red (Signal In)
7
CDTX-90-2 Terminals
Shield (Sensor Gnd)
14
Black (Iso Gnd)
13
White (Temp In)
12
Red (Signal In)
11
CDTX-90-3 Terminals
Shield (Sensor Gnd)
14
Black (Iso Gnd)
13
White (Temp In)
12
Red (Signal In)
11
Ultra-
CDCE-90 Series Sensor Ranges
Pure Pure Rinse
CDCE-90-20
CDCE-90-10
CDCE-90-1
CDCE-90-01
CDCE-90-001
0.055 1 10 100 200 1,000
(10 kΩ)
(18 MΩ)
Conductivity Range (µS)
CDTX-90
Conductivity/Resistivity
≤ 100 ft. (30 m)
62.50 uS/cm
25.0°C
ENTER
CDCE-90 Series Standard and Certified Cells
10,000 200,000 400,000
2
1