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ORP Analog Controller with Self-Diagnostic Test – HI8720
HI8720 ORP panel mounted controller is ideal for process control monitoring in a wide range of industrial applications, allowing for the selection of a set point for oxidizing or reducing dosage.
- Auto-diagnostic tests for electrode and instrument status.
- Displays values on the easy to read LCD.
- A removable, transparent splash-proof cover protects the front panel.
2,270.00 AED
Inquire NowAuto-Diagnostic Feature
Built-in autodiagnostic functions to enable the user to check and troubleshoot any malfunctions. The functions are made via front panel keys to isolate the cause of malfunction.
Consent Contacts
These contacts (maximum 2A, 220 V) are for reduction and oxidation reactions when the pH controller is used with an ORP Controller. In these applications, the consent contacts of both meters are connected together to link the ORP and pH controllers so that ORP dosage will occur only if the actual pH value is correct, to avoid overdosage of oxidants or reductants that can lead to pollution.
Alarm Contacts
If the measured ORP is not within the tolerance of the set value, the alarm contact is closed. This can occur if there is insufficient dosage or if there is overdosage.
Outputs
You can choose the output configuration for connecting a recorder or a PLC, between 0-20 or 4-20 mA
ORP Dosing Consent Device
When used in conjunction with the HI 8710 pH controller, the ODCD (ORP dosing consent device) function (featured by the HI 8710) will ensure that the ORP dosage will start only when the pH level is correct.
Robust Design
A removable, transparent splash-proof cover protects the front panel.
Specifications
| SKU | HI8720 |
| Name | ORP Analog Controller with Self-Diagnostic Test – HI8720 |
| mV Range | ±1000 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±0.5% |
| mV (ORP) Calibration | Offset: ±2 pH with OFFSET trimmer; Slope: 80 to 110% with SLOPE trimmer |
| mV (ORP) Dosing Relay | 1, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| mV (ORP) Dosing Set Point | 0.00 to 14.00 pH |
| Alarm Relay Set Point | 1, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Alarm Relay Range | 10 to 300 mV |
| Over Dosing Control | Adjustable, from 5 min to 60 min with knob or Disable by wire strap ‐ on rear panel |
| Analog Input Signal | 4 to 20 mA |
| Analog Ouput Signal | ±5 Vcc; 150 mA max load for amplified electrodes |
| Backlight | Continuous ON |
| Enclosure | Black anodized aluminum body; front and back with ABS; transparent splash‐proof front cover |
| Power Supply | 115 or 230 Vac; 60/50 Hz |
| 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.) |
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