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Hanna Panel Mounted pH Controller with Isolated Out, Transmitter - HI8710
Item #:
HI8710
Brand:
Hanna Instruments
Share this product:
HI8710 Panel Mounted pH Controller with Isolated Out, Transmitter by Hanna Instruments
HI 8710 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.
When used in conjunction with the HI 8720 ORP controller, the ODCD* function will ensure that the ORP dosage will start only when the pH level is correct.
“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.
* ORP dosing consent device
- Inputs: BNC connector, Direct wire connection with amplified probe (supports HI 1006 series probes) and 4-20 mA from a transmitter
- Extended temperature compensation range: -20 to 100°C
- Supports potential matching pin connection
- Both 4-20 and 0-20 mA output
- ±5V outputs for amplified electrodes
- Backlit LCD
- Auto-diagnostic tests for pH electrode and instrument status
- Operational mode LED indicators
- Fail Safe Function–the alarm relay is activated at power down
- Transparent splash-proof cover
Order Information:
The HI 8710 is supplied complete with mounting brackets and instructions.
| Range | 0.00 to 14.00 pH |
| Resolution | 0.01 pH |
| Accuracy @ 20 °C | ±0.02 pH (0 to 100 °C) ±0.05 pH (-20 to 0 °C) ±0.5% (input from transmitter) |
| Input | high impedance 1012 Ohm; reference and matching pin inputs are available; 4-20 mA |
| Power Output | ±5 Vcc; 150 mA max load for amplified electrodes |
| Calibration | offset: ±2 pH with OFFSET trimmer slope: 80 to 110% with SLOPE trimmer |
| Temperature Compensation | fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F) |
| Recorder Output | 0-20 mA or 4-20 mA (isolated) |
| Setpoint Relay | 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Setpoint Range | 0.00 to 14.00 pH |
| Alarm Relay | 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Alarm Range | 0.2 to 3.00 pH |
| Consent Relay | 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Dosing Control | OFF/AUTO/ON with selection switch |
| Over Dosing Control | adjustable, from 5 min to 60 min with knob or disable by wire strap - on rear panel |
| Backlight | continuous on |
| Power Supply | 115 VAC ±10% or 230 VAC ±10%; 50/60 Hz |
| Enclosure | flame retardant ABS body and front panel; transparent splash-proof front cover |
| Environment | -10 to 50°C (14 to 122°F); RH max 95% non-condensing |
| Panel Cutout | 141 x 69 mm (5.6 x 2.7") |
| Weight | 1 kg (2.2 lb.) |
