Controllers
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DC 4000

Conductivity Controller for

Cooling Tower & Boilers

0-20,000 µS or Selectable PPM/TDS

4-20 mA Recorder Output (Standard)

Backlit LCD Alpha / Numeric Display

High and Low Alarm with Relay

UL and CUL Certified


DC 4500

Conductivity Controller

0-20,000 µS control range

Display units in µS or in PPM/TDS

Water meter totaliser (gallons/litres)

4-20 mA recorder output (standard)

High and low alarm with output relay

Temperature display in °C or °F



DP 5000

pH Controller

0-14 pH Scale

pH Programmable Response Delay

High and Low Set Points

Proportional Pulse or Relay Output

Limit Timers for Each Output

4-20 mA Output (Option)



DR 5000

ORP Controller

+/- 2000 mV Scale

ORP Programmable Response Delay

High and Low Set Points

Proportional pulse or relay output

Limit Timers for each output

4-20 mA Recorder Output (option)