CHAPTER 7 CALIBRATION
E5AK
7--12
7.6 Checking Indication Accuracy
·
After calibrating input, make sure that you check indication accuracy to
make sure that the E5AK controller has been correctly calibrated.
·
Operate the E5AK 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 E5AK controller and cold junction compensator are connected
by a compensating conductor for the input type that is to be used during
actual operation.
10
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
31 32
33
STV
Cold junction
compensator
Compensation
conductor
SOURCE
AC100-240V
(AC/DC24V
)
~
·
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.
10
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
31 32
33
6-dial
SOURCE
AC100-240V
(AC/DC24V
)
~
·
Operation
Set the 6-dial to the resistance equivalent to the check value.
F
Thermocouple
F
Platinum resis-
tance thermome-
ter