| Detection Principle |
Electrochemical |
| Gas Detected |
Carbon Monoxide (CO) |
| Detection Range |
0 ~ 150 ppm (1ppm / digit) |
| Display Resolution |
1ppm |
| Detection method |
Diffusion or remote sampling method with optional sensor extender cable |
| Indication Accuracy |
+ / – 5% of reading or + / – 2% full scale (whichever is greater) |
| Response Time |
90% Response within 30 seconds (T90) |
| Alarm Levels |
Two preset alarms (L-H) alarm 1 = 50 ppm alarm 2 = 100 ppm (other settings available) |
| Display of Alarm |
1st gas alarm: gas concentration reading blinks, flashing AL 1 icon, orange back light, buzzer 2nd gas alarm: gas concentration reading blinks, flashing AL 2 icon, red back light, buzzer |
| Alarm Logic |
Latching or Non-latching (including trouble alarm) |
| Alarm Contact |
Dry contact, normally open or normally closed (default setting is normally open) |
| Display |
Digital LCD (3 digits, 7 segments / Green, Orange, Red) (For Alkaline battery version, the back light will be OFF during normal operation) |
| Trouble Alarm / Self-Diagnosis |
System trouble / sensor connection trouble |
| Display of Trouble Alarm |
Buzzer / flashing of red error message |
| Relay Contact Rating |
125VAC, 1A or 30VDC, 1A (Resistive load) |
| Output Signal |
4 ~ 20mA (Non-isolated, Resistive load under 300Ω) or 0 – 1VDC (Non-isolated) *only for 0 – 1VDC Alkaline battery specification |
| Extender Cable (optional) |
Extender cable with remote box (3m, 5m, 10m or 20m lengths available) |
| Power Sources |
24VDC±10%, or AA alkaline battery (2 each) |
| Power Consumption |
AC specification: MAX 3.5VA, DC specification: MAX 2W |
| Continuous Operation |
1 year (no alarm, no indication) for alkaline battery option |
| Operating Temperature |
-17°C ~ 40°C |
| Operating Humidity |
0 – 90%RH (non-condensing) |
| Mounting Equipment |
Wall mounting type (by using accessory mounting plate or mount at one switch box) Cable inlet: Up, down and left/right, or rear side |
| Dimension |
Body: approx. 80mm (W) x 120mm (H) x 35.5mm (D) |
| Weight |
DC specification: approx. 180g, Alkaline battery specification: approx. 230g |
| Approvals |
CE Marking |