Description
The 918 series alarm box with rotating beacon provides an intrinsically safe audible alarm and 360° rotating visual beacon upon input signal activation. Ten red LEDs create a strobe visual effect. The unit is self-powered by a replaceable lithium battery and housed in a NEMA 4X water-resistant polycarbonate enclosure.
Features
- 360° rotating beacon with 10 red LEDs creating strobe visual effect during alarm
- 90 dB audible alarm at 4 feet
- Audible alarm ON/OFF globally selectable
- Audible alarm auto-silence mode (10 minutes) ON/OFF globally selectable
- Normally open or normally closed selectable by input channel
- Alarm indication latched until acknowledged
- Self-powered by long-life replaceable lithium battery
- Low battery indicator light turns yellow when battery power is low
- Internal ON/OFF power switch
- Simple push test button
- User-defined alarm labels
- NEMA 4X water-resistant polycarbonate enclosure
- Modular contacts for easy connection of dry contact simple switch devices
- Compatible with Morrison 918 clock gauges and 924, 924LS, and 925 level sensors
- Can be installed remote from gauge or level sensor
- 918SB: single input channel · 918DB: dual input channel with front panel indicator light · 918QB: quad input channel with front panel indicator light
Applications
- Aboveground storage tank level and leak alarm indication
- Hazardous location installations requiring intrinsically safe alarm circuits
- Remote alarm indication away from gauge or level sensor
- Integration with Morrison 918 clock gauges and 924, 924LS, 925 level sensors
- Applications requiring 360° visual alarm coverage
Certifications & Approvals
- cULus 913 Listed: Intrinsically safe for Class I, Division 1 & 2, Group D hazardous locations
- Florida DEP: EQ-868
