HI8931AN (0.0 to 199.9 mS/cm)
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HI8931 series are panel mounted conductivity meters and controllers designed for simplicity of use in a wide range of industrial process applications.
- Available in four models with different measurement ranges
- Temperature compensation ensures fast, accurately compensated readings even during sudden temperature fluctuations
- Backlit, LCD display for easy viewing.
Measurement Specific Models
Four different models are available with different measurement ranges, each one to be used with the corresponding HI8936 model.
In-line and Tank Use
For in-line applications, use the HI7635 probe, while for tanks the HI7638 with external threads is recommended. These probes are provided with a built-in NTC sensor for temperature compensated conductivity measurements.
Automatic Temperature Compensation
Built-in temperature sensor in recommended probes ensure fast, accurately compensated readings even during sudden temperature fluctuations.
Use with Transmitter
Using the HI8931 in conjunction with a 4-20 mA output transmitter (HI8936 or HI8936L series) will assure a strong, interference free signal at distances up to 300 meters (1000’).
Direct Connection
HI8931 also features a direct connection up to 20 m (67’), without needing to amplify the signal to the conductivity probe.
Robust Design
A removable, transparent splash-proof cover protects the front panel.
| SKU | HI8931-web |
| Name | EC Analog Controller with Input from Probe or Transmitter – HI8931 |
| EC Range | HI8931AN: 0.0 to 199.9 mS/cm HI8931BN: 0.00 to 19.99 mS/cm HI8931CN: 0 to 1999 µS/cm HI8931DN: 0.0 to 199.9 µS/cm |
| EC Resolution | HI8931AN: 0.1 mS/cm HI8931BN: 0.01 mS/cm HI8931CN: 1 µS/cm HI8931DN: 0.1 µS/cm |
| EC Accuracy | ±2% F.S. (excluding probe error) |
| EC Calibration | manual, two point, through offset and slope trimmers |
| EC/TDS Temperature Compensation | automatic, 0 to 60°C (32 to 140°F), with β = 2%/°C |
| Alarm Relay Set Point | load, 1,000,000 strokes |
| Enclosure | DIN 43 700, 144×72 mm (5.7×2.8 in.), black anodized aluminum; front and back with shockproof ABS plastic, and transparent cover |
| EC/TDS Probe | HI7635 for in-line applications or HI7638 for tank (not included) |
| Power Supply | 115 or 230 Vac ±10% (user selectable); 50/60 Hz |
| Environment | -10 to 50°C (14 to 122°F); RH 95% |
| Dimensions | 141 x 69 mm (5.6 x 2.7 in.) |
| Weight | 1 kg (2.2 lb.) |
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To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
