Omron e5ck User Manual page 158

CHAPTER 7 CALIBRATION
7.6 Checking Indication Accuracy
JChecking indication accuracy
F Thermocouple
AC100-240V
(AC/DC24V
F Platinum resis-
tance thermome-
ter
AC100-240V
(AC/DC24V
7–12
• After calibrating input, be sure to check indication accuracy to make
sure that the E5CK T controller has been correctly calibrated.
• Operate the E5CK T 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 E5CK T controller and cold junction compensator are con
nected by a compensating conductor for the input type (thermocouple)
that is to be used during actual operation.
~
)
5
11
SOURCE
4
3
2
13
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.
~
)
5
11
SOURCE
4
3
2
13
1
• Operation
Set the 6 dial to the resistance equivalent to the check value.
10
12
9
8
7
14
6
Compensation
conductor
10
12
9
8
7
6-dial
14
6
Cold junction
compensator
STV