5 MIC 1161 Manual
Product Description 1.1
1.1.1 GENERAL
This instrument is a microprocessor based single loop limit controller, user
configurable to either High Limit type or Low Limit type.
The input is user configurable to directly connect to either thermocouple,
RTD, mVDC, VDC or mADC inputs. The instrument can operate from a
90-264 VAC, 50/60 HZ power supply.
Features include fail safe operation (relay de-energized by the limit ex-
ceeded condition), front panel Reset switch, time limit exceeded display
and maximum/minimum tracking of excursions of the process variable.
1.1.2 DISPLAYS
Each instrument is provided with dual displays and status indicators as
shown in Figure 1-1. The upper display displays the value of the process
variable. The lower display displays the setpoint value. Status indication is
as shown in Figure 1-1, page 6.
1.1.3 ALARMS
Alarm indication is standard on all instruments. Up to two alarm outputs
are possible. Alarm type may be set as Process Direct or Reverse (high or
low), Logical Combination of the two alarms and Annunciator Direct or
Reverse. Alarm status is indicated by LED.
1.1.4 PROCESS VARIABLE/SETPOINT VALUE
RE-TRANSMISSION OUTPUT
If the instrument is specified with this option, this output may be scaled over
any desired range and re-transmitted.
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