HI710221 Conductivity and TDS - 2 setpoints with PID
HI710221 Conductivity and TDS - 2 setpoints with PID
THB 33,000.00 * Prices plus VAT plus shipping costs
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Product information "HI710221 Conductivity and TDS - 2 setpoints with PID"

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.

HI 710221-2 dual setpoint, on/off and PID controls, analog output, 230V

Product Manual:

HI 710 Series (Process Instrumentation)

Specification :

RangeConductivity0.0 to 199.9 µS/cm; 0 to 1999 µS/cm 0.00 to 19.99 mS/cm; 0.0 to 199.9 mS/cm
 TDS0.0 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
ResolutionConductivity0.1 µS; 1 µS; 0.01 mS; 0.1 mS
 TDS0.1 ppm; 1 ppm; 0.01 g/L (ppt); 0.1 g/L (ppt)
Accuracy @ 20°CEC/TDS±0.5% f.s.
 Temperature±1°C (outside)
EC Calibration automatic or manual at 1 point
 automatic or manual, -10 to 100°C with adjustable temperature coefficient from 0.00 to 10.00%/°C
TDS Conversion
 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
 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.)
 Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)


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