Direct connection of up to 20 m (66′) without needing to amplify the signal to the HI 7638 probe

Automatic diagnostic controls
Available in four models, each with a different measurement range
Operational mode LED indicators
Automatic Temperature Compensation with HI 7638 potentiometric conductivity probe with built-in temperature sensor
Transparent splash-proof cover included

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.

Order Information:
The HI 943500 series is supplied complete with mounting brackets and instructions.

Product Manuals

Manual: Download

Specification :

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
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 lb.)