| Detection Principle |
Galvanic cell |
| Gas Detected |
Oxygen (O2) |
| Detection Range |
0 ~ 25 vol% |
| Display Resolution |
0.1 vol% |
| Sampling Method |
Diffusion or remote sampling method with optional extender cable |
| Indication Accuracy* |
Within ±0.7 vol% |
| Response Time* |
90% Response within 30 seconds |
| Alarm Delay Time* |
Within 5 seconds, after detecting 10 ~ 11 vol% gas at Oxygen deficiency alarm (18 vol% alarm). |
| Alarm Accuracy* |
Within ±1 vol% of preset alarms |
| Alarm Levels |
Two preset alarms (L-LL), alarm 1 = 19.0% vol, alarm 2 = 18.0% vol (other settings available) |
| Display of Alarm |
1st gas alarm: gas concentration reading blinks or orange light, flashing AL1 light or orange light, buzzer
2nd gas alarm: gas concentration reading blinks or red light, flashing AL2 light or red light, buzzer |
| Alarm Method |
Latching or Non-latching |
| Alarm Contact |
Dry contact, Form A or Form B, Form A standard Factory Setting, normally open (closed in ALARM) |
| 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 / content indication (flashing of red error message) |
| Trouble Alarm Method |
Non-latching or Latching |
| Contact Capacity |
125VAC, 1A or 30VDC, 1A (Resistive load) |
| Output Signal |
4 ~ 20mA (Non-isolated, Resistive load under 300Ω) or 0DC-1V (Non-isolated) *only for 0DC-1V Alkaline battery specification |
| Extender Cable |
Extender cable with remote box (3m, 5m, 10m or 20m lengths available) |
| Power Sources |
120VAC±10%, 50/60Hz, 24VDC±10%, or AA alkaline battery (2 each) |
| Continuous Operation (for Alkaline Battery version) |
1 year (no alarm, no indication) |
| Initial Clear |
About 25 seconds |
| Operating Temperature |
0 ~ 104°F (no sudden change) |
| Operating Humidity |
Below 90%RH (non-condensing) |
| Mounting Equipment |
Wall mounting, sensor integrate type or remote type |
| Dimension |
Body: approx. 3.15”(W) x 4.72”(H) x 1.2”(D) (80(W) x 120(H) x 35.5(D)mm) Remote sensor: approx. 1.57”(W) x 3.78”(H) x 1.2”(D) 40(W) x 96(H) x 35.5(D)mm (exclude the protrusion) |
| Weight |
AC specification: approx. 7.05 oz (200g), DC specification: approx. 6.34 oz (180g), Alkaline battery specification: approx. 8.11 oz (230g) Remote sensor: approx. 1.94 oz (55g) (exclude the cable) |
| Warranty |
One year materials and workmanship |