IOM WM Iss.2
May 2019
Page 1 of 2
1A Bennett House, The Dean, Alresford, Hampshire, UK. SO24 9BQ
Tel: +44 (0)1962 736736 Fax: +44 (0)1962 736737 Email: sales@influxmeasurements.com
A GUIDE TO THE INSTALLATION, OPERATION & MAINTENANCE OF
SprinklerSense Wall Mounted Connection Unit, WM
FOR USE WITH SPDB30 & SPDB90 TYPE FLOW SWITCHES
1 Specification & Operation
1.1 Introduction
The SprinklerSense WM is designed specifically for use with Influx SPDB30 and SPDB90 type LPCB approved
flow switches. The unit is permanently wall mounted at an easily accessible height to provide a means of
connection to a PTI portable user interface unit which provides access to the self-test features of the flow switch.
1.2 Construction & Specification
Housing:
2 Gang Faceplate (surface mounting rear box provided)
Operating Temperature Range: 2 to 68
°
C
Supply Voltage:
18 to 30V D.C.
1.3 Operation
The WM once installed and connected to a Sprinklersense flow switch provides a 4-way Mini-DIN connector
socket which should only be used with a Sprinklersense PTI device. When connected, the WM provides power
to the PTI and allows communication with the flow switch. The PTI manual gives further information regarding
operation.
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