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Operation
-
Monitoring
Your Recorder
Release M
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
123
April 2017
Meaning of indicators
During normal operation, the indicators will light for the reasons shown in
Table 5-6 Meaning of indicators
Indicator
Definition when lit
ALM 1 2
Alarm condition exists for alarm 1 or 2.*
CHN 1 2
PV displayed is for channel 1 or 2.
RSP
Remote Setpoint (when available) or 2nd setpoint is active.
OUT 1 2
Control relay 1 or 2 is ON.
A or MAN
Indicates the mode of operation:
A = Automatic
MAN = Manual
F or C or blank
Indicates the temperature units of PV: F = Fahrenheit
C = Celsius
R or H or G or blank
(in upper display)
Indicates the state of the setpoint ramp or program if enabled:
R = Run
H = Hold
G = Guar Soak
blank = Disabled
T
Totalizer
LIMIT
(in lower display)
Alternately displayed with limit SP value in lower display when limit
condition exists.
KEY ERR
(in lower display)
Indicates parameter not available, not in set up mode, or key
malfunction.
* ALM1 indicator can also mean the Interval Timer has timed out. Alarms 3-6 are indicated by a message
on the lower display. See