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CHAPTER 7 CALIBRATION
7.6 Checking Indication Accuracy
J Checking indication accuracy
F Thermocouple
AC100-240V
(AC/DC24V
F Platinum resis-
tance thermome-
ter
7--12
• After calibrating input, be sure to check indication accuracy to make
sure that the E5EK-T controller has been correctly calibrated.
• Operate the E5EK-T controller in the PV/Present 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-T controller and cold junction compensator are con-
nected by a compensating conductor for the input type (thermocou-
ple) that is to be used during actual operation.
~
)
10
20
21 22
SOURCE
9
19
8
18
7
17
6
16
5
15
4
14
3
13
2
12
23
1
11
• 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.
~
AC100-240V
(AC/DC24V
)
SOURCE
• Operation
Set the 6-dial to the resistance equivalent to the check value.
Cold junction
compensator
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
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Change output pulse lenght