Temperature Alarms And Alarm Output - Teledyne T102 Operation Manual

Teledyne API - T102/501 TRS, Addendum to T101 Operation Manual

10.4.2.2. Temperature Alarms and Alarm Output

07267B DCN6485
The M501-TRS' controller has two user settable alarm points: High Alarm and Low
Alarm. A single SPST alarm output is triggered should the PV rise above the set level
of the high alarm point or fall below the level of the low alarm point.
The relay is normally open, and the contact closes in the alarm condition. The relay
contacts are isolated (dry) SPST, 220VAC / 30 VDC 1 Amp, resistive load. This alarm
output is available via a connector on the rear panel of the M501-TRS.
The M501-TRS temperature controller is programmed to hold off activation of either
alarm until after the process value rises above the lower limit for the first time after
power up.
THEORY OF OPERATION
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