Oxidation Redox Potential
Oxidation Reduction Potential Sensor
The ORP-1000 oxidation reduction potential sensor from Greenspan is designed to operate on a remote power source for long periods of time. Requiring only minimal field servicing the ORP-1000 can be left unattended in operation for extended monitoring periods.
Greenspan manufactures the ORP-1000 series with either an internal datalogger or analogue output. For ultimate flexibility the logging version can be supplied with interal battery power, perfect for descrete water quality monitoring.
The ORP-1000 sensor uses a platinum electrode and a reference electrode in the same body. At redox equilibrium, the potential difference between the ideal indicator electrode and the reference electrode equals the redox potential of the system.
The oxygen reduction potential (redox) sensor’s electrode is quick and easy to replace in the field. The acetal body and protective shrouds provide the ultimate protection ensuring the ORP-1000 will withstand the most extreme environments.
- Innovative, optically isolated signal conditioning
- Field-proven platinum electrode
- Innovative replaceable reference protection ring
- Robust, easy clean design
- Low power energy requirements
- Wide operating temperature range
Serial or Analogue Ouput?
The ORP-1000 series has either an analogue output (ORP-1000A) or an integrated data logger with serial output (ORP-1000L).
ORP-1000A analogue sensors have a 4-20mA output (V output is possible upon request).
ORP-1000L logging sensors have either RS-232, RS-485, or SDI-12 when the SDI-12 adaptor is connected.
*Optional internal battery pack is available for logging sensor.
Australian Made
Greenspan understands the importance of water quality monitoring in Australia. As such we design our sensors for robustness and accuracy, giving you peace of mind that you will obtain the measurements you need.
Owning a Greenspan water quality sensor means you receive; local support from our experienced sales and service technicians, local repairs and recalibration from our Melbourne-based engineers, and fast access to local spares from our factory in Melbourne.
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ORP-1000 Specifications
| SPECIFICATION | VALUE |
|---|---|
| Measurement Technique | Platinum electrode with internal reference |
| Range | +/- 500mV, +/-1000mV, 0-1000mV |
| Accuracy | +/-20mV (+/- 0.2mA) |
| Sensor outputs | 4-20mA, RS-232, RS485 Modbus, SDI-12 (adaptor required) |
| Power supply | 11-13.2 VDC (at sensor) |
| Current consumption | 10mA to 30mA while turned on |
| Internal datalogger | Non-volatile, battery-backed RAM with real-time clock (logging version only) |
| Reverse polarity protection | Yes |
| Surge current protection | to 2kV |
| Warm up time | 2 Sec |
| Operating temperature | 0-50°C |
| Storage temperature | -5°C to 60°C |
| Memory size | 4 Mb capacity, with user-selectable wrap function, typically 250,000 readings. (At 5-minute data for >12 months) |
| Dimensions | 364.20mm x 47mm (14.35” x 1.85”); 500g |
| Construction material | Platinum, Acetal, 316 passivated Stainless Steel, polyurethane, viton |
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