Chromalox 3101 User Manual

30 Chromalox 3101 Operator's Manual
Limit
Control
Operation
(continued)
Normal Operating Condition (no Limit Alarm):
Limit Output Relay: Energized
LIMIT LED: Off
Limit Alarm Condition:
Limit Output Relay: De-Energized
LIMIT LED: ON
If the controller type is set as a high limit con-
troller, the output is activated when the process
variable exceeds the setpoint. If set as a low
limit controller, the output is activated when the
process variable drops below the setpoint (see
Figure 5.1 on the following page).
Power Down Recovery:
In the event of a power failure, the 3101 will re-
tain the current status of the Limit Alarm, record
the Time Over Setpoint (TOSP) and Peak Tem-
perature value (PEAK). The controller will return
to this status when power is restored. If a limit
alarm occurred and power was interrupted, the
controller will restart in the Limit Alarm condition
when power is reapplied.

Chromalox 3101 Specifications

General

Brand	Chromalox
Model	3101
Category	Controller
Language	English