925, 925S
Multi-Level Sensor
Gauges and Alarms | Alarms
FIG 918SB, 918DB, 918QB
Tank Alarm with Rotating Beacon
The Morrison 918 series alarm box with rotating beacon is designed for applications requiring an intrinsically safe audible alarm and 360º rotating visual beacon for alarm indication in addition to audible alarm horn upon activation of a simple switch input signal.
Product Features
Standard Features
10 red LED lamps create strobe visual effect during alarm indication
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
Internal ON/OFF power switch
90 dB audible alarm at 4 feet
Self-powered by long-life replaceable lithium battery
Low battery light turns yellow indicating battery power is low
Simple push test button
Alarm indication latched until alarm activation is acknowledged
User-defined alarm labels
NEMA 4X water-resistant enclosure
Compatible with Morrison 918 clock gauges and 924, 924LS, and 925 level sensors
Can be installed remote from gauge or level sensor
Modular contacts make it easy to connect a variety of dry contact simple switch devices
918SB is a single input channel tank alarm box
918DB is a dual (2) input channel tank alarm box (input channel indicator light on front panel)
918QB is a quad (4) input channel tank alarm box (input channel indicator light on front panel)
Construction Details
- Alarm Box… Polycarbonate plastic
- Battery… Lithium
Code Compliance
Florida DEP EQ-868; cULus 913 Listed; Intrinsically safe for Class I, Division 1 & 2, Group D hazardous locations
Product Ordering Instructions
| Figure | Suffix | Description | Weight (lbs) |
| 918SB | 1000 AA | Single channel tank alarm box only | 2.04 |
| 918DB | 1100 AA | Dual channel tank alarm box only | 2.04 |
| 918QB | 1100 AA | Quad channel tank alarm box only | 2.04 |
