3200 Series
Part No HA028651 Issue 7.0 Apr-09 97
16.3.4
To Calibrate mA Outputs
I/O1, Output 2 and/or Output 3 may be supplied as mA outputs. The outputs may be adjusted as follows:-
Connect an ammeter to the output – terminals 1A/1B, 2A/2B or 3A/3B as appropriate.
Then, in configuration level:-
Operation
Do This
Display View
Additional Notes
Select low point calibration phase
for the mA output to be
calibrated (eg OP1)
1.
From the ‘CAL’ list header press
°
to select
‘PHASE’
2.
Press
V
or
W
to choose
‘
1ma.L
’
Scrolling message ‘
calibration
phase
’
Set the low point output
3.
Press
°
to select ‘V A L U E ’
4.
Press
V
or
W
to adjust this value so that
it reads the same value as shown on the
ammeter. For example if the meter reads 2.06
then set the controller reading for 206. The
decimal point is not displayed on the
controller so that 200 represents 2.00.
Scrolling message ‘
dc output
reading
’
Select high point calibration
phase for the mA output to be
calibrated (eg OP1)
5.
Press
°
to go back to ‘PHASE’
6.
Press
V
or
W
to choose
‘
1ma.H
’
Scrolling message ‘
calibration
phase
’
Set the high point output
7.
Press
°
to select ‘V A L U E ’
8.
Press
V
or
W
to adjust this value so that
it reads the same value as shown on the
ammeter. The value represents 18.00mA
Scrolling message ‘
dc output
reading
’
The above procedure may be repeated for outputs 2 and 3 if they are fitted with analogue output modules.
Controller
A +ve
B -ve
2.00
Digital ammeter
