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7930 OPERATING INSTRUCTIONS

Introduction

The 7930 is an asset protection transmitter that can be used to monitor priceless artefacts and works of art, that 

are on display and easily accessible. Transmitters can be discreetly placed, without taking away the enjoyment 

of viewing interesting historical objects. Movement of the protected item immediately alerts staff or 

management ensuring swift and effective action, minimising risk.

Refer to the Iris+ Installation Guide (MK192) for details on adding the device to the system.

Device application

The unit will respond to acceleration above a pre-set limit in the direction of A, B or C or any combination of the 

three (see figure 1). 

The best way to protect a conventionally mounted painting is to suspend the unit from the underside of the 

top horizontal stretcher, slightly away from the vertical stretcher (approx. 5-8mm, see figure 2). 

The use of the gold plated suspension springs allow the unit to freely rotate and allows a certain amount of 

protection from natural vibrations. When the picture is disturbed the unit bumps against the side or front and 

will trigger an alarm condition.

The 7930 transmitter is dispatched down powered to save battery life. 

The unit has 3 internal switches. Switch 1 determines device power (on or off), 

whilst switches 2 and 3 control the device’s sensitivity. Available settings are 

shown below:

Transmitter Powering & Sensitivity

= device power off 

(Switch 1 OFF)

Low

sensitivity 

High

sensitivity

Medium / high 

sensitivity

Medium / low 

sensitivity

Figure 1

A

B

C

Figure 2

Rear view of picture frame

5 - 8mm gap 

to side

Frame

Side view of picture frame

Canvas

5 - 8mm gap to 

rear of picture

Wall

Frame

Least sensitive

Most sensitive

As 

despatched

7930

PENDANT TRANSMITTER

EN300 220-3

7930

PENDANT TRANSMITTER

EN300 220-3

7930

PENDANT TRANSMITTER

EN300 220-3

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TSD217 (Iss 6) 26/07/2018 AJM

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