<< Back


Conductivity Analyser

The CT700 is an on-line conductivity analyser available as a 4-wire mains powered unit or a 2-wire loop-powered unit. The loop-powered unit requires a supply voltage between 16 and 35V and re-transmits the conductivity value by varying the loop current between 4 and 20mA. The mains powered unit runs on either 110 or 230V (specify the required voltage when ordering) and re-transmits the conductivity value on a separate 24V loop.


Intuitive User Interface

Four-button programming provides intuitive navigation through the menu driven user interface

Dual Alarm Relays/Analog Outputs

AC operated systems provide two relays that are configurable as control or alarm

Diagnostic Messaging

Diagnostic messages provide a clear description of system condition, which eliminates confusing error codes that can be difficult to decipher

Flexible Calibration

Two-point and sample calibration options include stability monitors to check temperature and main parameter stability before accepting data


Tecnical Specifications:

Main Display Range 

0.0 to 200.0, 0 to 2,000 µS

0.00 to 20.00, 0.0 to 200.0, 0 to 2,000 mS


0.3% of span, or 0.1 µS, whichever is greater


0.05% of span or 0.1 µS, whichever is greater


0.3% of span, or 0.1 µS, whichever is greater

Response Time 

6 seconds to 90% of step input at lowest setting


Large, high-contrast, LCD
4-digit main display with sign, 19mm seven-segment characters
12-digit alpha-numeric second line display, 7.6mm 5 x 7 dot matrix characters


16-35 VDC for loop-powered unit; 115/230 VAC, 50/60 Hz., 10 VA max.

Control Relays 

Two SPDT relays, 6A @ 250 VAC, 5A @ 24 VDC, resistive

Relay Mode 

Programmable for control or alarm function

Analog Outputs 

Isolated 4-20 mA, 550 Ω max. load. 

Two assignable 4-20 mA outputs, 550 Ω max. (AC only)

Data Logger 

Battery version only, stores 32,000 data points

Operating Conditions 

-20-60°C, 0-95% R.H. non-condensing


NEMA 4X (IP-66) polycarbonate wall, panel, or pipe mount


2-wire or battery units: 1 lbs. (0.45 Kg) 

AC power units: 2 lbs. (0.9 Kg)

Ordering Information:

500/0026 SENSOLUTION CT700 2-Wire Conductivity Transmitter (For use with EC Toroidal Conductivity Probes - 500/9005 or 500/9008)

For use with: