Obsnap Instruments Sdn Bhd
29A, Jalan SS 15/4C, 47500 Subang Jaya, Selangor, Malaysia.
Conductivity and TDS Digital Controllers HI710
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- Fully programmable microprocessor memory
- Dual set points
- mA & VDC recorder output
- Differential input for ground loop protection
- Automatic one or two point calibration
- Last calibration data
- Manual or Automatic Temperature Compensation
- Extensive range for both conductivity and TDS
The HI 700 series of regulators offer state of the art specifications for your process control. They can be configured for ON/OFF, proportional, PI or PID control. Thanks to our exclusive technology, they can be customized to best fit your application. Bright LED's show the current status even from a distance. A menu-driven display aids the user throughout the operations with running messages and clear prompts. All relevant parameters can be simply adjusted and will remain memorized until overwritten.
With self-diagnostic features and extractable terminals, installation and maintenance are fast and simple. Password protection guarantees that the calibration and predetermined parameters cannot be altered unnecessarily. The controllers can operate with four-ring probe or 4-20 mA signal. They accept probes with or without a built-in Pt100 temperature sensor.
Order Information:
HI 710 model is provided with dual set point, ON/OFF and PID controls and is supplied with mounting brackets and instructions.
Choose your configuration
HI 710221-1 dual setpoint, on/off and PID controls, analog output, 115V
HI 710221-2 dual setpoint, on/off and PID controls, analog output, 230V
HI 710222-1 dual setpoint, on/off and PID controls, RS485 output, 115V
HI 710222-2 dual setpoint, on/off and PID controls, RS485 output, 230V
Specifications
| Range | Conductivity | 0.0 to 199.9 µS/cm; 0 to 1999 µS/cm 0.00 to 19.99 mS/cm; 0.0 to 199.9 mS/cm |
| TDS | 0.0 to 100.0 mg/L (ppm); 0 to 1000 mg/L (ppm) 0.00 to 10.00 g/L (ppt); 0.0 to 100.0 g/L (ppt) | |
| Temperature | -10.0 to 100.0°C | |
| Resolution | Conductivity | 0.1 µS; 1 µS; 0.01 mS; 0.1 mS |
| TDS | 0.1 ppm; 1 ppm; 0.01 g/L (ppt); 0.1 g/L (ppt) | |
| Temperature | 0.1°C | |
| Accuracy @ 20°C | EC/TDS | ±0.5% f.s. |
| Temperature | ±0.5°C (0 to 70°C); ±1°C (outside) | |
| EC Calibration | automatic or manual at 1 point | |
|
Temperature Compensation |
automatic or manual, -10 to 100°C with adjustable temperature coefficient from 0.00 to 10.00%/°C | |
|
TDS Conversion Factor |
adjustable from 0.00 to 1.00 | |
| Outputs | analog: isolated 0-1 mA, 0-20 mA and 4-20 mA; 0-5 VDC, 1-5 VDC and 0-10 VDC or digital: RS485 bi-directional opto-isolated | |
| Analog Input | 4-20 mA | |
| Set Point Relay | two contact outputs SPDT 5A-250 VAC, 5A-30 VDC (resistive load), fuse protected (2A, 250V fast fuse) | |
| Alarm Relay | contact output SPDT 5A-250 VAC, 5A-30 VDC (resistive load), fuse protected (2A, 250V fast fuse) | |
| Power Supply | 115 VAC ±10% or 230 VAC ±10%; 50/60 Hz | |
| Power Consumption | 15 VA | |
|
Over Current Protection |
400 mA 250V fast fuse | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | panel cutout: 140 x 140 mm, instrument: 144 x 144 x 170 mm | |
| Weight | 1.6 kg (3.5 lb.) | |
| Dimensions | 144 x 144 x 170 mm | |
| Ordering Information | Each HI710 model is supplied with mounting brackets and instructions. |
