DigitalFlow™ Multipurpose Ultrasonic Liquid Flowmeter Service Manual 11
Chapter 1. Calibration
1.7 Totalizer/Frequency Option Card
Totalizer/Frequency outputs may be added to the Model DF868 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 13 as a guide.
Figure 5: Frequency Counter Connections
For this discussion, assume that the option card has been installed in
Slot x.
1.7.1 Accessing the Calibration Menu
1. Press the [CAL] key to enter the Calibration Program.
2. Press
[Fx] to select Slot x. (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.
1.7.2 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)
B
COM
B
NO
A
COM
A
NO
8
1
Frequency
D
COM
D
NO
C
COM
C
NO
Counter
COM
IN
To Next Page
Loading...
Need help?
General
