Lot of 4 Alarm SAF CVM-60 Multi-function Universal Timer 12 / 24 Vac 40 Ma 1 Sec

Description

Lot of 4 Alarm SAF CVM-60 Multi-function Universal Timer 12 / 24 Vac 40 Ma 1 Sec
New old stock in their boxes.
The CVM-60 is a general purpose multifunction timer capable of timing from 1 second to 4 hours in 4
selectable ranges. The unit provides the ability to trip from power-up, or from a normally open or
normally closed contact with positive or negative trip The CVM-60 provides one single pole double throw
(SPDT - Form C) dry contact output. The timer may be powered from 12 or 24V DC or AC (limited
functionality when powered by AC) - selectable by cutting jumpers.
Applications
A
larm Verification
Timers may be used in conjunction with two or more detector types in
order to minimize or eliminate the possibility of false alarms due to the
relationship of the detector type chosen to the environment.
For example, proximity detectors tend to be false alarm prone; however
by using a PIR in conjunction with a proximity detector, the combination
may be made essentially foolproof.
The accepted method is to utilize the most unstable detector to initiate a
"time window" during which the second detector "looks" for a disturbance
upon which an alarm may be initiated.
It is possible to use the CVM-60 timer as an alarm verifier to eliminate
"swingers" by forcing the alarm detector to hold in the alarm mode for a
specific time frame.
If you're local to west Cincinnati, you can pick these up and save the shipping cost.