DigitalFlow™ DF868 Multipurpose Ultrasonic Liquid Flowmeter Programming Manual (2-Channel) 37
Chapter 1. Programming Site Data
Setting Up Alarms
Complete the following steps to set up the three alarm relays of an option card installed in Slot x:
1. Press [F1]-[F3] to set up alarm relays A, B, or C, respectively.
Note: The set up of alarm A is used as an example. Identical procedures would be used to set up the other alarms.
2. Press [F1]=OFF to disable Alarm A and return to the previous prompt, or press [F2]=HIGH, [F3]=LOW, [F4]=FAULT
to specify Alarm A as the type indicated.
3. Press [F1] for standard operation or [F2] for Failsafe operation. See Chapter 1, Installation, of the Startup Guide for
wiring instructions for each mode.
4. Use the [
and [ and [F1]-[F4] keys to select a Channel option for the data source, as shown in Table 20 on
page 35.
5. The program now varies, depending on your selection in step 2.
• If you selected FAULT as the alarm type, press [F1]-[F3] to select the type of error (flow, non-flow, or both) you
wish to trigger the alarm.
Note: If you have enabled the Energy Option, the DF868 treats the E8 and E9 errors (supply and return
temperature) as flow errors.
• If you selected HIGH or LOW:
a.
Use the [ and [ and [F1]-[F4] keys to specify the desired Output Measurement parameter. See Table 21 on
page 36 for a description of the available options.
Note: The measurement units that appear in these prompts are those selected in the GLOBL-SYSTM menu earlier
in this chapter.
b. Enter a value for the trigger point of the alarm and press [ENT].
c. Press [F1]-[F3] to set up another alarm or press [EXIT] to select another slot for set up.
Option Card Totalizer/Frequency Outputs
Complete the following steps to set up the four totalizer/frequency outputs of an option card installed in Slot x:
1. Press [F1]-[F4] to set up outputs A, B, C or D, respectively.
Note: The set up of output A is used as an example. Identical procedures would be used to set up the other
outputs.
2. At the Slot X Pulse Out prompt, press [F1] 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.
3. Use the [
and [ and [F1]-[F4] keys to select a Channel option for the data source, as shown in Table 20 on
page 35.
Proceed to step 4 on page 38 for instructions on programming a frequency output or to step 9 on page 39 for
instructions on programming a totalizer output. If the selected output was disabled above, skip both sections.
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