No Need for a Transmitter
These controllers allow the direct connection of a potentiometric conductivity probe (HI 7638) with a cable up to 20 meters long, without using any transmitter.
Self-testing Diagnostics
Designed with built-in diagnostic functions to enable the user to check and troubleshoot the instrument. The checks performed are through the front panel keys and can be used to isolate the cause of malfunction.
Visual Indicator
The LED on the front panel indicates the operating status of the controller.
Automatic Temperature Compensation
The automatic temperature compensation (ATC) is performed directly by the HI 7638 probe with built-in temperature sensor.
Friendly Interface
The instruments are designed with a standard DIN panel mount with membrane keypads on the front, a large LCD and with auto-diagnostic functions.
Robust Design
A removable, transparent splash-proof cover protects the front panel.
| Specification Name | Detail |
|---|---|
| sku | HI943500 |
| EC Range | HI943500A: 0.0 to 199.9 mS/cm HI943500B: 0.00 to 19.99 mS/cm HI943500C: 0 to 1999 µS/cm HI943500D: 0.0 to 199.9 µS/cm |
| EC Resolution | HI943500A: 0.1 mS/cm HI943500B: 0.01 mS/cm HI943500C: 1 µS/cm HI943500D: 0.1 µS/cm |
| EC Accuracy (@20°C/68°F) | ±2% F.S |
| Temperature Compensation | automatic, 0 to 60°C (32 to 140°F), with ?=2%/°C |
| Calibration | manual, two point, through offset and slope trimmers |
| Recorder Output | 4 to 20 mA (isolated) |
| Setpoint Relay | Isolated, 2A, Max. 240V, resistive |
| Probe | HI7635 for in-line applications or HI7638 for tank (not included) |
| Power Supply | 115 or 230 Vac ±10% (user selectable); 50/60 Hz |
| Alarm Relay | load, 1,000,000 strokes |
| Environment | -10 to 50°C (14 to 122°F); RH 95% |
| Enclosure/ Case Material | DIN 43 700, 144×72 mm (5.7×2.8″), black anodized aluminum; front and back with shockproof ABS plastic, and transparent cover |
| Dimensions | 141 x 69 mm (5.6 x 2.7″) |
| Weight | 1 kg (2.2 lb.) |
