Omron E5EK - MANUAL 2 User Manual page 126

CHAPTER 7 CALIBRATION
7.6 Checking Indication Accuracy
+ Checking
Indication
Accuracy
' Thermocouple
' Platinum
resistance
thermometer
7–12
After calibrating input, make sure that you check indication accuracy to
make sure that the E5EK DRT controller has been correctly calibrated.
Operate the E5EK DRT controller in the PV/SP monitor (level 0 mode)
mode.
Check the indication accuracy at the upper and lower limits and mid
point.
Preparation
The following figure shows the required device connection. Make sure
that the E5EK DRT controller and cold junction compensator are con
nected by a compensating conductor for the input type that is to be used
during actual operation.
10
21 22
SOURCE
9
8
7
6
5
4
3
2
23
1
Operation
Make sure that the cold junction compensator is at 0_C, and set STV out
put to the voltage equivalent to the starting power of the check value.
Preparation
The following figure shows the required device connection.
SOURCE
Operation
Set the 6 dial to the resistance equivalent to the check value.
20
19
18
17
16
15
Cold junction
14
compensator
13
12
11
Compensation
conductor
10 20
21 22
9 19
8 18
7 17
6 16
5 15
4 14
3 13
2 12
23
1 11
STV
6-dial