DigitalFlow™ GF868 Programming Manual (1-Channel) 17
Chapter 1. Programming Site Data
1.9.4 Setting Up the Totalizer/Frequency Outputs
1. Press [F1]-[F4] to set up outputs A, B, C or D, respectively.
2. Press [F1] = OFF to disable output A and return to the previous prompt, or press [F2] = FREQ or [F3] = TTLZR to
designate output A as a frequency or a totalizer output, respectively.
Note: The setup of output A is used as an example. Identical procedures would be used to set up the other outputs.
• To program a frequency output, go to step 3.
• To program a totalizer output, go to step 4.
1.9.4a Programming a Frequency Output
3. The FREQ output, [F2], produces a frequency pulse that is proportional to the output measurement. Complete the
steps below to program the frequency output.
a. Use the and [ and [F1]-[F4] keys to specify the desired Output Measurement parameter.
b. Enter the Base value for the low end of the frequency output range and press [ENT].
c. Enter the Full value for the high end of the frequency output range. Press [ENT].
d. Enter a value between 1 and 10,000 for the Full Scale Frequency. Press [ENT].
Programming a Totalizer Output
4. The TTLZR output, [F3], issues one pulse per selected volume of flow. The meter produces a pulse each time the
programmed amount of flow passes through the pipe. Complete the steps below to program the totalizer output.
a. Press [F1] = +TOTL to totalize the forward flow, [F2] = -TOTL to totalize the reverse flow, [F3] = +MASS (if
available) to totalize the forward mass flow or [F4] = -MASS (if available) to totalize reverse mass flow.
b. Enter a value from 50 to 500,000 sec for the Minimum Pulse ON Time and press [ENT].
Note: A complete pulse consists of equal amounts of ON and OFF times. Choose a value that is compatible with the
frequency counter to be used.
c. Enter a value for the number of measurement Units/Pulse and press [ENT].
5. Press [F1]-[F4] to set up another totalizer/frequency output or press [EXIT] to select another slot for setup.
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