Conductivity Analog Controller with Direct Input from Potentiometric Probe 1 µS/cm resolution
These controllers allow direct connection of a potentiometric conductivity probe
(HI 7638) with a cable up to 20 m long, without needing a transmitter to amplify the signal.
The output configuration for connecting a recorder or a PLC can be chosen between
0-20 or 4-20 mA.
The LED on the front panel indicates the operating status of the controller.
The Automatic Temperature Compensation (ATC) is performed directly by the HI 7638 probe with built-in temperature sensor.
The front panel is protected behind a transparent splash-proof cover.
Range 0 to 1999 µS/cm
Resolution 1 µS/cm
Accuracy @ 20°C ±2% F.S.
Calibration manual, two point, through offset and slope trimmers
Compensation automatic, 0 to 60°C (32 to 140°F), with ß=2%/°C
Recorder Output 4-20 mA (isolated)
Setpoint Relay 1, isolated, 2A, max. 240 V, resistive load, 1,000,000 strokes
Alarm Relay 1, isolated, 2A, max. 240 V, resistive load, 1,000,000 strokes
Power Supply 115 or 230 VAC ±10% (user selectable); 50/60 Hz
Enclosure black anodized aluminum body; front panel with flame retardant ABS; transparent splash-proof front cover
Environment -10 to 50°C (14 to 122°F); RH max 95%
Panel Cutout 141 x 69 mm (5.6 x 2.7’’)
Weight 1 kg (2.2 lb.)
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