HI 943500D

Conductivity Analog Controller with Direct Input from Potentiometric Probe 0.1 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.

Specifications
Range  0.0 to 199.9 µS/cm
Resolution  0.1 µS/cm
Accuracy @ 20°C  ±2% F.S.
Calibration  manual, two point, through offset and slope trimmers
Temperature
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 lbs.)

Accessories
Electrodes
HI 7638  In-line Conductivity Probe with Platinum Ring, NTC Sensor and 3 m Cable
Solutions
HI 7033L  84 µS/cm EC Solution, 500 mL Bottle
HI 7031L  1413 µS/cm EC Solution, 500 mL Bottle
HI 7030L  12880 µS/cm EC Solution, 500 mL Bottle
HI 7034L  80000 µS/cm EC Solution, 500 mL Bottle
Probes
HI 3001  Flow-thru Conductivity Probe with 3 m cable
HI 3002  Submersion EC Probe with 3 m cable