DigitalFlow™ GS868 Service Manual 13
Chapter 1. Calibration
1.8 Testing the Totalizer/Frequency Outputs
Totalizer/Frequency outputs may be added to the Model GS868 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 5 below. Refer to the menu
map in Figure 6 on page 15 as a guide.
Figure 5: Frequency Counter Connections
For this discussion, assume that the option card has been installed in
Slot x.
1.8.1 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
[F1]-[F4] to select output A, B, C or D, respectively.
1.8.2 Entering Frequency
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)
A
NO
A
COM
B
B
D
D
C
C
Frequency
1
8
Counter
IN
COM
COM
NO
COM
NO
COM
NO
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