This product appears in the PureSample Source Book Vol. 4 (ERE)
Overview
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)
Compare models
Your selection is highlighted. Select a row to switch.| Part Number | Model |
| HA-710221 | EC & TDS Controller, Dual Set Point, On/Off & PID Control, Analog Output |
| HA-3011 | Flow-Thru, 4-Ring Conductivity Probe W/ Platinum Sensor & 10' (3 m) Cable |
| HA-7639 | Conductivity / TDS Pt100 Probe & 10' (3 m) Cable |
| HA-7610 | Stainless Steel Temperature Probe, Pt100 Sensor |
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
Related equipment we stock

Solinst Levelogger Edge to Levelogger 5 / 6 Direct Read Cable (DRC) Adaptor
Loggers: Levelogger Edge and Gold

Solinst Model 122 Interface Meter P8 Replacement Probe and Model 101 / 107 / 122 Replacement Laser-Marked Tape with Tape Seal
Probe Diameter: 16 mm | Tape Length: 30 m

Heron H.OIL Interface Meter and dipper-T Replacement Parts: Probe, Electronic Panel, Connector Link, Ground Lead & Thumb Screws
Interface Probe: 3/4 in | Dipper-T Probe: 5/8 in

YSI ProQuatro 4 m Quatro Cable With Conductivity/Temperature Sensor (605790-4)
Length: 4 m | Ports: 4