HI8710 is a panel mounted pH controller with self-diagnostic test capabilities. Users can set: the setpoint for acid or alkaline dosage, the tolerance of the setpoint before an alarm is activated, the dosage mode: automatic, continuous on or OFF and the over dosage control by setting the overtime dosage knob.
Hanna’s exclusive Fail Safe Alarm System protects against problems caused by power supply failure or signal interruption. An alarm condition is indicated by a red LED, located directly on the front panel of the controller.
“Overtime dosage” function with selection knob and jumper for disable on the rear panel. If the dosing relay remains continuously activated for more than selected dosing time the alarm relay is activated, the alarm LED is blinking and the dosing relay is deactivated.
When used in conjunction with the HI8720 ORP controller, the ORP Dosing Consent Device function will ensure that the ORP dosage will start only when the pH level is correct.
A 2-wire Pt100 can be connected to provide automatic temperature compensation of the pH measurements.
Supports potential matching pin connection to avoid typical problems caused by grounding loop current, such as progressive damage of the electrode, fluctuating measurements, and poor process regulation.
A removable, transparent splash-proof cover protects the front panel.
| Weight | 0.45 kg |
|---|---|
| Parameter | pH |
| pH Accuracy | ±0.02 pH (0 to 100 °C)/ ±0.05 pH (-20 to 0 °C) (electrode); ±0.5% (transmitter) |
| pH Calibration | Offset: ±2 pH with OFFSET trimmer; Slope: 80 to 110% with SLOPE trimmer |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| SKU | HI8710 |
| Name | pH Analog Controller with Self-Diagnostic Test – HI8710 |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH (0 to 100 °C)/ ±0.05 pH (-20 to 0 °C) (electrode); ±0.5% (transmitter) |
| pH Calibration | Offset: ±2 pH with OFFSET trimmer; Slope: 80 to 110% with SLOPE trimmer |
| pH Temperature Compensation | Fixed or automatic with Pt100 from -20 to 100 °C (-4 to 212 °F) |
| Alarm Relay Set Point | 1, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Alarm Relay Range | 0.2 to 3.00 pH |
| Analog Input Signal | 4 to 20 mA |
| Analog Ouput Signal | 0-20 mA or 4-20 mA (isolated) |
| Backlight | Continuous ON |
| Voltage Output | ±5 Vcc; 150 mA max load for amplified electrodes |
| Enclosure | Black anodized aluminium body; front and back with ABS; transparent splash-proof front cover |
| Environment | -10 to 50°C (14 to 122°F); RH max 95% non-condensing |
| Dimensions | 141 x 69 mm (5.6 x 2.7”) |
| Weight | 1 kg (2.2 lb.) |
To empower customers to achieve quality
by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
