Panametrics PT878GC, Instruction Manual

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TransPort™ PT878GC User’s Manual 157
Chapter 9.
3. The next prompt, the transmitter sample size, is the number of pulses each transmitter (upstream and
downstream) emits. It is set to 8 by default.
Note: Consult Panametrics Sensing before performing this step.
a.
Press
[ENTER]
to open the drop-down list.
b. Use the [

] or [

] arrow keys to scroll to the recommended number.
c. Press [ENTER] to confirm your selection.
4. The next prompt asks for the zero cutoff. Near “zero” flow, the PT878GC may have fluctuating readings due to
small offsets (caused by factors such as thermal drift in the fluid). The zero cutoff causes velocity measurements
less than the cutoff to be reported as zero. To set the cutoff:
a.
Press
[ENTER]
to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press [ENTER] to confirm your entry.
5. The next prompt asks for velocity averaging, the number of velocity measurements to average together to
smooth out noise in the system.
a.
Press
[ENTER]
to open the drop-down list.
b. Use the [

] or [

] arrow keys to scroll to the desired number.
c. Press [ENTER] to confirm your selection.
6. The final prompt, errors allowed, specifies the number of errors the meter can record before displaying an error
message.
a.
Press
[ENTER]
to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press [ENTER] to confirm your entry.
You have finished entering data in the Signal Parameter window. To leave this window,
• Press the [

] key to return to the Signal Parameter tab, and the [

] arrow key to move to the Measurement
Mode tab.
• Press [F2] (Cancel) to return to Operate Mode without confirming the changes.
• Press [F3] (OK) to confirm the new data and return to Operate Mode.