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IM 4H3B1-01E
1. FEATURES AND FUNCTIONS
ALARM
Type of alarms: H: high limit
L: low limit
h: high difference limit
l: low difference limit
R: rate-of-change limit on increasing signal
r: rate-of-change limit on decreasing signal
Hysteresis: hysteresis value as a % of span which can be 0% or approx. 0.5%
Alarm output relay: when alarm occurs, the relay will be activated (optional)
Reflash: monitors repeating alarm occurrences among a group of alarms sharing the
same output relay (optional)
FAIL/Chart-end output: output relay is activated when chart reaches its end and/or when failure of
equipment occurs (optional)
INPUT
Type of inputs: TC: Thermocouple
RTD: Resistance Temperature Detector
DC-voltage
DC-current: using optional external shunt resistor
DI: Digital Input (contact)
Burnout: when TC-wire is broken, pens will move to left or right side
Filter: (signal damping) selects the time constant of signal damping (for pen model)
Moving average: selects the number of samples for moving average (for dot model)
1.2 Summary of Functions
✴
1: will not be printed when the time does not correspond with the correct place on the chart.
Figure 1.2 Recording Example for Dot Model
Alarm printout
Note: When an asterisk
appears (
✴
), the memory
buffer is full and some data will
not be printed. This asterisk
may appear in the alarm
printout, message printout,
recording start time printout
and the chart speed change
printout.
Message printout
Chart speed change
printout
Time tick (–)
*
1
Manual printout
Periodic printout
Channel printout
Recording start time
Time tick (–)
*
1
