Output Calibration - Omron E5AR - MANUAL 2 User Manual

Section 9 User calibration

9.6 Output calibration

• The procedure for calibration when linear current output is selected is explained in the following.
• Output calibration is displayed after input calibration is finished (after the input calibration values are
saved). (Perform aging for at least 30 minutes.)
str.i1
no
l.cal
M
(Output upper-limit)
oa20.1
0d4ad
l.cal
UD
(Output upper-limit)
oa20.1
0d4ab
l.cal
UD
(Output lower-limit)
oa 4.1
02a89
l.cal
UD
(Output lower-limit)
oa 4.1
02a87
l.cal
M
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9-12
1. The input calibration value save state appears as shown at left.
2. Connect a precision digital meter (DMM in the following) to the output
terminal of the linear current output as shown below.
A
1
2
+
DMM Current output
_
3. Press the M key to obtain the display at left and begin 20 mA calibration.
4. While viewing the output on the DMM, use the UD keys to set the output
to 20 mA. In the example at left, "20 mA" appears at a value 2 digits
smaller than before calibration.
5. Press the M key to obtain the display at left and begin 4 mA calibration.
6. While viewing the output on the DMM, use the UD keys to set the output
to 4mA. In the example at left, "4 mA" appears at a value 2 digits smaller
than before calibration.
7. Press the M key to obtain the display at left. Note that this display will not
appear if not all of the required data has been tentatively saved, or if the
data has not been changed.
Press the U key. Display 2 will show "yes". Two seconds after the key is
released or when the M is pressed, the tentatively saved calibration data is
stored in non-volatile memory. If you do not wish to save the data in non-
volatile memory, press the M key instead of the U key.
• If there is another output, connect the output as explained in step 2, and
repeat steps 3 to 7.
8. Turn off the power to quit calibration mode.