Testing The Totalizer/Frequency Outputs; Accessing The Calibration Menu; Entering Frequency - GE DigitalFlow GC868 Service Manual

Testing the Totalizer/
Frequency Outputs
Accessing the Calibration
Menu

Entering Frequency

Calibration
Totalizer/frequency outputs may be added to the Model GC868 by
installing a Totalizer/Frequency Option Card in one (or more) of the
six expansion slots. Each option card includes four outputs, which are
designated as A, B, C and D. To test the outputs, connect a frequency
counter to the card's terminal block as shown in Figure 1-5 below.
Refer to the menu map in Figure 1-6 on page 1-15 as a guide.
8
COM
COM
COM
COM
1
Figure 1-5: Frequency Counter Connections
For this discussion, assume that the option card has been installed in
Slot x
.
[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.)
[F1]-[F4]
3. Press to select output A, B, C or D, respectively.
4. Enter a new frequency in the range of 1-10,000 Hz and press the
[ENT]
key. Verify that the frequency counter reads the correct
value.
Terminal Block (Option Card)
D
NO
D
C
NO
C
B
NO
B
IN
Frequency
A
COM
NO
A
April 2008
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