Simple Multi-point Type Gas Alarm System B-770
- Gas Detected
- LPG or Town gas
- Detection Principle
- Catalytic combustion, Hot wire semiconductor
- Detection Range
- 1/100 to 1/4 of LEL (1%LEL to 25%LEL)
Simple multi-point type (Max. 3 points) gas alarm system for LPG or City gas.
- Simple multi-point type (max. 3 points) gas alarm system for LPG or Town gas.
- Affordable, compact and easy to operate.
- Easy installation and maintenance.
- Pre-calibrated smart sensor for immediate installation.
- Several type of connectable gas detectors to match your installation site.
- Variety of signals outputs to meet customers needs.
- Built-in self-diagnostic function.
|Alarm Indication||Flashing red lamp (illuminated after alarm shut-off), alarm sound, non-latching
(can be set to latching using DIP switch)
|Alarm Volume||70 dB/m min.|
|Alarm Shut-off||By pressing a button|
|Malfunction Indication||Flashing yellow lamp|
|Display of alarm unit
|Illuminated green lamp|
|Power Source||100 VAC to 220 VAC, 50/60 Hz (Terminal block type)|
|Power consumption||Approx. 5W when monitoring (max.)
Approx. 10W during alarm (max.)
|External output||1) 2-stage voltage (6 VDC when monitoring, 12 VDC during alarm, 0 V during error)
2) 100 VAC to 220 VAC during alarm, 1A max. (35-second output delay,can be changed to immediate output with DIP switch)3) 1a, 1b contacts 220 VAC, 1A max., or 2 4VDC, 1A max. (35-second output
delay, can be changed to immediate output with DIP switch)
|-10 to +40 °C|
|Dimensions||W138 x H230 x D45 mm|
|Accessories||Inspection gas, Mounting plate, Wood screws, Crimp terminals, Hex wrench|
|Detection Principle||Catalytic combusion type (energy-saving type)|
|Gas Detected||Town gas||LPG||LPG|
|Gas Concentration fo alarm||1/100 to 1/4 of LEL (1%LEL to 25%LEL)|
|Response time||1 minute max.|
|Power Source||24 VDC ±20% (Supplioed from the B-770)|
|Maximum Loop Length||500m max. (CVV 1.25mm2, 3-conductor cable)||200m max. (using
|Operating Temperature Range||-10 to +60 °C||-10 to +45 °C|
|W94 x H141 x D123 mm||W43 x H116 x D37 mm|
|Weight||Approx. 1.5kg||Approx. 220g|
|Mounting method||Screws||Mounting plate and bands|
|Accessories||Stand, Rain cap, Rain cover, Screws, Curled plugs,
|Mounting plate, Wood
Connectors, Curled plugs,