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Output
Calibration -
Current
Proportional Output/Aux Out 2 and 3 Calibration
196
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
Release M
April 2017
Procedure
The procedure for calibrating the Current Proportional Output is listed in Table 8-2. Make sure
“LOCKOUT” in the Set Up group is set to “NONE.” See
Section 3 – Configuration.
Also, “CONTROL
1/2” must be enabled and “OUT ALG” must be set to “CURRNT” in the Control Set Up group.
ATTENTION
Follow this procedure when calibrating Auxiliary Output #2 or #3. Make sure "LOCKOUT" in
the Set Up group is set to "NONE" and "AUX OUT" must
NOT
be disabled in the Auxiliary
Output group.
Table 8-2 Current proportional output/Aux Out 2 and 3 calibration procedure
Step
Operation
Press
Action/Result
1
Enter Calibration Mode
SET
UP
Until you see:
Upper Display:
CALIB
Lower Display:
CURRENT
2
Calibrate 0 %
FUNC
You will see:
Upper Display:
(a value)
(approximately 380)
Lower Display:
ZERO VAL
▲
or
▼
Until the desired 0 % output is read on the
milliammeter. Use the values shown below depending
on the action of your recorder.
4 mA
For 4 to 20 mA Direct Action
20 mA For 4 to 20 mA Reverse Action
3
Calibrate 100 %
FUNC
Stores the 0 % value and you will see:
Upper Display:
(a value)
(approximately 1890)
Lower Display:
SPAN VAL
▲
or
▼
Until the desired 100 % output is read on the
milliammeter. Use the values shown below depending
on the action of your recorder.
20 mA For 4 to 20 mA Direct Action
4 mA
For 4 to 20 mA Reverse Action
4
Exit the Calibration Mode
FUNC
The recorder stores the span value.
LOWR
DISP
or
SET
UP
To exit the calibration mode.