Conductivity Controller


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Conductivity Controller

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Ten Selectable Conductivity Measurement Ranges in one controller via its IP54 front panel. High-level accuracy of �1% of full scale can be obtained with appropriate cells and correct temperature coefficient
User-Customization through Setup Menu in matching the functions to suit specific operation
Tri-Level Password Protection against authorized tampering
Non-Volatile Memory retains all stored measurement parameters and calibration data
Selectable Cell Constant (0.01, 0.1, 1.0, 10.0) to cater for different applications for more accurate measurements
Two contact relays and 1 Alarm Relay with independent timer control
Hysteresis Band Protection against rapid control switching of relays from wear and tear
Temperature Coefficient for more accurate measurement with a pure water compensation option available to automatically compensate for linearity in linear/pure water applications
Line Resistance Compensation against intrinsic cable resistance for longer cable connection
Choice of Temperature Sensor Pt100/Pt1000 with 2-wire or 3-wire temperature input selection
Electrode Diagnosis can be obtained after each successful calibration with cell characteristics displayed, useful for tracking the cell efficiency
Scalable 0/4..20 mA transmitter isolated output for use to maximize the resolution on the chart recorder
IP54 rated front panel against dust and accidental water spills
Installation and wiring are easily performed with detachable plug-in connectors

The microprocessor-based conductivity controller is CE and UL certified in compliance to meet international standards against electromagnetic interference. Ideal for power plant, drinking water, boiler and cooling towers, water treatment applications.

Specifications

Product Code
Conductivity Range	0.000-1.999, 19.99, 199.9, 1999.9, 5000 �S/cm; 0.00-19.99, 199.9 mS/cm
Resolution & Accuracy	0.001, 0.01, 0.1, 1 �S/cm; 0.01, 0.1 mS/cm & � 1% Full Scale
Cell constants	0.01, 0.1, 1.0, 10.0 (s/w selectable)
Signal output range (0/4 - 20 mA)	Max. 100% Full Scale; Min. 10% Full Scale
Temperature Range	-9.9 to 125.0 ^oC
Resolution & Accuracy	0.1 ^oC & � 0.5 ^oC
Sensor (for ATC)	PT100/PT1000
Type of Controller Setting	Limit
Pickup/Dropout Delay	0 to 2000 seconds
No. of Relays Maximum Voltage Maximum Current High/Low Hysteresis Band	2 SPDT; 1 Alarm 250 VAC 3A; 0 to 10% Full Scale
Contact Set-points	Lo/Lo; Lo/Hi; Hi/Lo; Hi/Hi (selectable)
Alarm Function	Latching / Pulse (software)
Power Requirement	120 or 240 VAC
Dimensions	1/4 DIN (96 x 96 mm)