EQN TEMPERATURE TRANSMITTER
CALIBRATION
H
-
5
Refer to Figure
for an overview of the calibration functions.
Bench Calibration
This procedure applies to EQN Transmitters configured for either
ANALOG
or
DIGITAL
. Any difference between the two are noted in
the
Comments
column.
Figure H-2. Calibration Flowchart (EQN)
T 01 3 2 8 A
E N TE R
A M B IE N T
T E M P E R AT U R E
C A L IB R AT IO N
C O M P LE T E
B EN C H
T H E R M O C O U P LE
D -TO -A
A P P LY 0 m V
S IG N A L
A D JU S T
O U T PU T TO
4 m A
A D JU S T
O U T PU T TO
2 0 m A
A D JU S T
O U T P U T TO
2 0 m A
A P P LY 2 5 m V
S IG N A L
E N T E R H IG H
C A L IB R AT IO N
U N ITS
E N T E R L OW
C A L IB R AT IO N
U N IT S
B E N C H
R T D, m V
A P P LY L O W
C A L IB R AT IO N
U N ITS
A D JU S T
O U T P U T TO 4
m A
C
A
L
I
B
R
A
T
E
A P P LY H IG H
C A L IB R AT IO N
U N ITS
DIGITAL
ANALOG
Key
Display
Comments
This operation will cause a change in output not cor-
responding to the input. Be sure the control loop is in
manual.
Select
YES
.
Select
BENCH CALIB.
C A LI-
B R AT E
OUTPUT WILL BE
AFFECTED! PROCEED?
NO
→
YES
E N T E R
CALIBRATION
D-TO-A ADJUST
→
BENCH CALIB.
