OXYGEN CONTROLLER CO-421
CO-421 is a stationary device used for continuous measurements of oxygen concentration in clean water, sewage or in the air and temperature. Measurement may be made in % or in mg/l in water and in % in the air.
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1. Equipped with two relays to control valves and signalisation system.
2. Equipped with 0 ÷ 20 mA current loop.
3. Equipped with RS-232 output with a software to collect the data on a PC. Optionally, the connection may be made by USB output with use of RS-232 – USB
converter (additional equipment).
Characteristic features:
- Meter is equipped with backlit LCD display.
- The device has an automatic temperature compensation system.
- The controller enables 2-point calibration of the oxygen sensor in 0% and 100% concentration for measurements in water and in 20.9% concentration in the air.
- It is possible to calibrate it without the need of disconnecting the outputs.
- Periodically, the sensor should be calibrated and manually cleaned.
- Powered by 12 V adapter.
- 24 months of warranty.
- High accuracy at an affordable price.
When ordering, the kind and unit of measurement should be specified – water or air and % or mg/l.
COG-2 oxygen sensor
Depending on usage, we recommend galvanic oxygen sensors: COG-1, COG-1t with built-in temperature sensor or COG-2 sensor with weight. The sensors may be mounted in immersible or flow heads, chosen depending on the measurement conditions. COG-2 may be used for measurements in water or sewage without the head.
TECHNICAL DATA
Function | Oxygen % | Oxygen % | Oxygen mg/l | Temperature |
---|---|---|---|---|
Environment | air | water | water | water or air |
Range | 0 ÷ 100% | 0 ÷ 199.9 % | 0 ÷ 19.99 mg/l | -50.0 ÷ 199.9 °C |
Accuracy (± 1digit) | ±2 %* | ±2 %* | ±0.2 mg/l* | ±1 °C with Pt-1000B probe |
Temperature compensation | - | - | 0 ÷ 40°C | - |
Constant values for measurement in mg/l | Air pressure 1013 hPa, salinity 0% | |||
Dimmensions (mm) / weight | L = 149, W = 82, H = 22 / 210g | |||
Power supply | 12 V / 100 mA power adapter | |||
Relays' parameters | 2A/250VAC/30VDC | |||
Isolation class | according to PN-83/T-06500 | |||
Radioelectric interference | N level |
* | With oxygen sensor, at calibration temperature. |