Accessing The Calibration Menu; Calibrating The Low End; Of The Output Range - GE DigitalFlow GC868 Service Manual

Parametrics gas clamp-on ultrasonic flowmeter
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Calibrating the Analog
Outputs (cont.)
Accessing the Calibration
Menu

Calibrating the Low End

of the Output Range

Calibration
8
D
SIG
D
RTN
C
SIG
C
RTN
B
SIG
B
RTN
A
SIG
A
RTN
1
Figure 1-2: Ammeter Connection for Slots 1-6 (Output A)
[CAL]
1. Press the
key to enter the Calibration Program.
[Fx]
2. Press
to calibrate the desired slot. (The option bar will include
a slot listing for each installed option card.)
[Fx]
3. Press
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.
[F1]
1. Press
to calibrate the low end of the output range.
[F1]
[F2]
2. Press
or
to adjust the ammeter reading
a 4 mA reading is achieved. If you press
numeric value for the calibration point and press [ENT].
[F4]
STORE
3. Press
to
the setting, or press
calibration.
Note: If the ammeter reading cannot be adjusted within 5.0 μA of the
4 mA setting, contact the factory for assistance.
Terminal Block (Option Card)
+
Ammeter
-
UP
[F3], Numer
[F1]
and
April 2008
DOWN
or
, until
, enter a
ABORT
to
the
1-3

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