Checking Indication Accuracy - Omron E5EK DEVICENET User Manual

CHAPTER 7 CALIBRATION

7.6 Checking Indication Accuracy

J Checking
Indication
Accuracy
F Thermocouple
F 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 cali-
brated.
• 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
connected 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
output 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