OXYGEN CONTROLLER CO-421


CO-421 is a stationary device used for continuous measurements of concentration of oxygen in clear water, sewage and temperature measurements. The measurement may be made in % or in mg/l.

The controller is available in two versions:
1. Equipped with two relays to control valves and signalisation system.
2. Equipped with 0 ÷ 20 mA current loop.

Characteristic features:



When ordering, the version and unit of measurement should be specified – relays or current loop and % or mg/l.

The meter enables storing of 8000 results. The built-in memory allows you to remember the results with a set time interval: the shortest 1 minute, and the next possibilities : 2, 5, 10, 15, 30, 60 minutes. When the memory is full, the oldest result is deleted and a new one is added. The results can be transferred to a computer via USB. The delivered in the set computer software allows to transfer the results of the measured function and temperature with the date and time of recording.

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 mg/l Temperature
Range 0 ÷ 199.9 % 0 ÷ 19.99 mg/l -50.0 ÷ 199.9 °C
Accuracy (± 1digit) ±2 %* ±0.2 mg/l* ±1 °C
with Pt-1000B probe
Temperature compensation - 0 ÷ 40°C -
Memory 8000 data sets collected with chosen time interval
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.