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2.6 ALARM
The MST-1 provides a normally open and normally closed
dry contact for alarming low or high temperature
conditions. In addition, this same contact can be used to
signal a power failure. This contact may be connected to
an alarm system, or directly to a siren and/or auto-dialer.
Make normally open or normally closed connections as
indicated in Figure 3.
2.7 POWERING UP
Before powering up the MST-1, attach the faceplate to the
casing of the MST-1 using the four screws previously
removed.
Set Selector knob to position (12).
Upon power up, the unit will test it’s display by briefly
lighting all the segments of it’s LED. Make certain that all
segments light.
Following the LED display test, the unit displays the
ambient temperature of the room.
If the temperature is not displayed, refer to the Trouble
Shooting section in the appendix of this document.
Momentary power interruptions may trigger false alarms!
To avoid false alarming when the MST-1 is connected to
an alarm system, install a time delay relay between the
MST-1 and the alarm system.
CHAPTER 2 - INSTALLATION
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