อุปกรณ์วัด Control System (Conductivity and TDS Digital Controller with Four-ring Potentiometric Probe)

HI 710

Conductivity and TDS Digital Controller with Four-ring Potentiometric Probe

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.

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 ±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 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)

Accessories

Solutions
HI 7030L  12880 µS/cm EC Solution, 500 mL Bottle
HI 7031L  1413 µS/cm EC Solution, 500 mL Bottle
HI 7033L  84 µS/cm EC Solution, 500 mL Bottle
HI 7034L  80000 µS/cm EC Solution, 500 mL Bottle