The HA-710 can be configured for ON/OFF, Proportional, PI or PID control. Thanks to Hanna’s exclusive technology, they can be customized to best fit your application. A menudriven 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. Bright LED lights show the current status even from a distance. With self-diagnostic features and extractable terminals, installation and maintenance are rapid and simple. Password protection guarantees that the calibration and predetermined parameters cannot be altered unnecessarily. The controllers can operate with 4-ring probe or 4 - 20 mA signal. They accept probes with or without a built-in Pt100 temperature sensor. HA-710 monitors and controls both conductivity and TDS. If you only need conductivity or TDS, then order HA-700 or HA-705, respectively.

Ranges: 
• μS: 0.0 to 199.9/0 to 1999
• mS: 0.00 to 19.99/0.0 to 199.9
• ppm: 0.0 to 100.0/0 to 1000
• ppt: 0.00 to 10.00/0.0 to 100.0
• °C: -10.0 to 100.0

Specifications:
• Resolution: 0.1/1 0.01/0.1 0.1/1 0.01/0.1 0.1
• Accuracy (@ 20°C/68°F): ± 0.5% F.S. (EC & TDS); ± 0.5°C (0 to 70°C); ± 1°C (outside)
• Typical EMC Deviation: ± 2% F.S. (EC & TDS); ± 0.5°C
• Calibration: Automatic or manual single point
• Temp. Compensation: Automatic (with Pt100) or manual from -10 to 100°C with coeff. from 0.00 to 10.00% /°C
• TDS Ratio Adjustable from 0.00 to 1.00
• Dual-level LCD with graphic symbols & messages
• Analog: isolated 0 to 1 mA, 0 to 20 mA, and 4 to 20 mA (max. resistive load 1 KΩ); 0 to 5 V DC, 1 to 5 V DC and 0 to 10 V DC (min. resistive load 1KΩ)
• Analog Input: 4 to 20 mA
• Set Relay: 2 SPDT 5A-250 V AC contact outputs, 5A-30 V DC (resistive load)
• Alarm Relay: SPDT 5A-250 V AC contact outputs, 5A-30 V DC (resistive load)
• Environment: 32 to 122°F (0 to 50°C); max. RH 95% non-condensing
• Power Supply: 115 V ± 10% or 230 V ± 10% V AC; 50/60 Hz
• Dimensions: 1/2 DIN 5.7" x 5.7" x 6.7" (144 x 144 x 170 mm)
• Panel Cutout: 5.5" x 5.5" (140 x 140 mm)
• Weight: 3.5 lbs (1.6 kg)