FIG 918AC
System Interface
Gauges and Alarms | Alarms | Clock Gauge Alarms
FIG 918S, 918D, 918Q
Tank Alarm
The 918 alarm box can be paired with a variety of Morrison 918 clock gauges or level sensors. The alarm provides an audible alarm and visual indication upon the receipt of a signal. Connect a variety of Morrison gauges or sensors to meet your requirements.
- 918D is a dual channel alarm box- Connect two devices
- 918Q is a quad channel alarm box- Connect up to four devices
Product Features
Standard Features
Visual alarm indicators lights turn red identifying which input channel is alarming
Self-powered by long-life replaceable lithium battery
Monitor up to four sensor signals
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
Low battery light turns yellow indicating battery power is low
90 dB audible alarm at 4 feet
Modular contacts make it easy to connect a variety of dry contact simple switch devices
In compliance with UL 913 intrinsic safety standards
Intrinsically safe for Class I, Division 1 and 2, Group D hazardous locations
Internal ON/OFF power switch
ON/OFF switch for audible alarm
ON/OFF switch for auto-silence mode
Normally open or normally closed selectable by input channel
Construction Details
- Alarm box: Polycarbonate plastic
- Battery: Single-cell lithium
Certifications & Listings
cULus 913 Listed; Florida DEP EQ-527; Intrinsically safe for Class I, Division 1 & 2, Group D hazardous locations
Product Ordering Instructions
| Figure | Suffix | Size | Description | Weight (lbs) |
| 918S | 1100 AA | 2” | Single channel tank alarm box, use with 918 gauge & 918 TCPS sensors | 1.40 |
| 918D | 1100 AA | 2” | Dual channel tank alarm box, use with 918 gauge & 918 TCPS sensors | 1.40 |
| 918Q | 1100 AA | 2” | Quad channel tank alarm box, use with 918 gauge & 918 TCPS sensors | 1.40 |
