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Operation
-
Monitoring
Your Recorder
Release M
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
125
April 2017
Viewing the operating parameters
The upper display is a six-character display, four of which show the value of the PV during normal
operation.
The lower display is an eight-character display. During normal operation, you can view various
operating parameters. Press the
LOWR DISP
key to scroll through the operating parameters listed in
The lower display shows only those parameters and their values that apply to your specific model and
the way in which it was configured.
You can configure the lower display to scroll through the items in
Table 5-7 at an interval of 1, 2, or 3
seconds. Refer to
subsection 3.17 Options Set Up group, function prompt “SCROLL”
to make your
selection.
Pressing the
LOWR DISP
key will freeze the lower display at the presently viewed item; pressing it
again will advance to the next item and scrolling will resume.
Pressing ▼while pressing
LOWR DISP
will scroll backwards.
For recorders with two controllers (both enabled) remember that any controller-related values displayed
correspond with the lighted CHN indicator — “1” means that the values apply for Controller #1 and “2”
means that the values apply for Controller #2.
Table 5-7 Lower display key parameter prompts
Prompt
Description
OUT**
Output Value in Percent (%). Note that the output can only be adjusted through the
raise/lower keys when the controller in manual mode.
SP**
Local Setpoint 1. Also current setpoint of SP Ramp or SP Ramp/Soak Program.
SPN
Current setpoint for setpoint rate applications.
2SP**
Local Setpoint 2 (where remote setpoint does not apply)
RSP
Remote Setpoint (when configured)
2IN
Value of Channel 2 input (when available)
DEV
PV deviation from setpoint (±999.9 maximum)
EU
Engineering units that PV represents (when available)
RH
RH value in percent (%) (when available)
PIDSETx**
Tuning Parameter Set
x
=1 or 2
RAMP
The time (minutes) remaining in the setpoint ramp
#RA
The time (minutes) remaining in the SP Ramp segment
#SK
The time (minutes) remaining in the SP Soak segment
RECYC
The number of recycles remaining to be run in the Setpoint Program
**
Time remaining in Timer function
**
Time elapsed in Timer function
TUNExXXX**
Accutune II indicator.
x
= Loop number (1 or 2).
XXX
= ON or OFF.