GE DigitalFlow GC868, Руководство по обслуживанию

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Calibration 1-3
April 2008
Calibrating the Analog
Outputs (cont.)
Figure 1-2: Ammeter Connection for Slots 1-6 (Output A)
Accessing the Calibration
Menu
1. Press the
[CAL]
key to enter the Calibration Program .
2. Press
[Fx]
to calibrate the desired slot. (The option bar will include
a slot listing for each installed option card.)
3. Press
[Fx]
to select the desired output.
IMPORTANT:
The procedure for calibrating all the outputs is the
same. However, when calibrating a different output,
be sure to reconnect the ammeter to the appropriate
pins on terminal block I/O. Refer to Figure 1-1 on
page 1-2 or Figure 1-2 above for correct pin
numbers.
Calibrating the Low End
of the Output Range
1. Press
[F1]
to calibrate the low end of the output range.
2. Press
[F1]
or
[F2]
to adjust the ammeter reading
UP
or
DOWN
, until
a 4 mA reading is achieved. If you press [F3], Numer , enter a
numeric value for the calibration point and press
[ENT].
3. Press
[F4]
to
STORE
the setting, or press
Æ
and
[F1]
to
ABORT
the
calibration.
Note:
If the ammeter reading cannot be adjusted within 5.0
μ
A of the
4 mA setting, contact the factory for assistance.
Terminal Block (Option Card)
A
SIG
A
RTN
B
SIG
B
RTN
D
SIG
D
RTN
C
SIG
C
RTN
+
-
Ammeter
1
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