Calibrating Analog Input - Omron E5C series User Manual

7-5

Calibrating Analog Input

Calibrating a Current Input
In this example, calibration is shown for a Digital Controller with an analog input, with a current input
set as the input type.
adj
30
a 20
c8e7
a 1
4677
str
no
E5@C Digital Temperature Controllers User's Manual (H174)
1. Connect the power supply.
2. Connect an STV and DMM to the current input terminals, as shown in the following diagram.
E5CC
11
Input power Input power
supply supply
12
+
4
STV STV
−
DMM DMM
5
3. Turn the power ON.
4. Move to the Calibration Level.
This starts the 30-minute aging timer. This timer provides an approximate timer for aging.
After 30 minutes have elapsed, the No. 2 display changes to 0. You can advance to the next
step in this procedure even if 0 is not displayed.
5. When the M Key is pressed, the status changes as shown to the left.
The No. 2 display at this time shows the currently entered count value in hexadecimal. Set the
STV to 20 mA.
Allow the count value on the No. 2 display to fully stabilize, then press the D Key to
temporarily register the calibration settings.
If this count value is outside of the specified range, the No. 2 display will flash and the count
value will not be temporarily registered.
6. When the M Key is pressed, the status changes as shown to the left.
Set the STV to 1 mA.
Allow the count value on the No. 2 display to fully stabilize, then press the D Key to
temporarily register the calibration settings.
If this count value is outside of the specified range, the No. 2 display will flash and the count
value will not be temporarily registered.
7. When the M Key is pressed, the status changes as shown to the left.
The data to be temporarily registered is not displayed if it is not complete.
Press the U Key. The No. 2 display changes to yes. Release the key and wait two seconds or
press the M Key. This stores the temporarily registered calibration data to non-volatile
memory.
To cancel the saving of temporarily registered calibration data to non-volatile memory, press
the M Key (while no is displayed in the No. 2 display) without pressing the U Key.
8. The calibration mode is ended by turning the power OFF.
For Digital Controllers that have a transfer output, you can continue by calibrating the transfer
output. For detailed setting methods, refer to 7-6 Calibrating the Transfer Output.
E5CC-U E5EC/AC
10 1
Input power Input power
supply supply
11 2
+ +
3 22
STV STV
− −
DMM DMM
2 23
7 User Calibration
E5DC E5GC
1 1
Input power
supply
2 2
+ +
12 10
STV
− −
DMM
13 11
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