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Microprocessor based CO detector, with auto-zeroing procedure and test push button. It employs an electrochemical cell and provides an alarm intervention proportional to the CO contents. The unit is provided with audible alarm and output relay.
This CO-DETECTOR (carbon monooxid) has been realised to fulfil the newly approved European Standards on CO
detection in domestic premises EN50291. In particular, to satisfy this standard the detector relay intervention has been temporised as described in the following table:
|
CO ALARM SCHEME |
| CO CONCENTRATION |
TEMPORISED ALARM INTERVENTION |
| 50 ppm |
60 minutes |
| 100 ppm |
10 minutes |
| 300 ppm |
Immediate |
On all of the detecotr , whenever either the sensor or any electronic components get damaged a Fault condition generates, activating the corresponding warnings. All detectors are provided with an Open Collector type output (40mA load) corresponding to the watch-dog device controlling the microprocessor; this output will activate in case of any anomalous working.
| TECHNICAL SPECIFICATIONS: |
|
| MODEL |
S880CO |
| GAS |
CARBON MONOXIDE (CO) |
| Pre-Alarm |
None |
| Alarm |
Se table above |
| STANDARD |
EN50291 |
| Relay Contacts Rating |
10A-250V |
|
Operating temperature |
-10°C ÷ +45°C |
| Storage temperature |
-20°C ÷ +60°C |
|
Relative humidity |
15-90 RH |
| IP rating |
IP42 |
| Dimensions |
75x155x42 mm |
| Power supply |
230Vac (to be fitted by skilled electrician) |
| Sensor |
NEMOTO Electrochemical cell |
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