Onicon System-10 P1 Bedienungsanleitung Seite 37

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11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-P1 Manual 10/14 - 0656-9 / 18320 Page 37
11. Select the FLOW RATE
page. Note and record
the ow reading.
Scroll through the BTU meter display pages and select the FLOW RATE page.
Note the displayed ow rate and conrm that it is within the expected range
specied on the BTU meter certicate of calibration. Record the ow rate.
12. For ow meters that
provide a frequency
output, measure and
record output(s).
Compare calculated vs.
displayed ow rates.
F-1200 or FB-1200 only
Conrm both turbines
produce pulses.
The average frequency output signal is a 0-15 VDC pulsed output ranging up to
200 Hz and must be measured with a frequency counter or oscilloscope.
Measure DC Frequency (Hz) at T4 from terminal 6(+) to 7(-).
GPM = Frequency in Hz x 60
Meter Factor in ppg.
(Refer to calibration tag for meter factor.)
For the F-1200 or FB-1200 dual turbine model, also measure and record the top
and bottom turbine signals.
Top Turbine: T4-12(+) to T4-2(-). Bottom Turbine: T4-13(+) to T4-2(-)
Also, measure DC volts on same terminals. Five to 7 VDC is normal for a
spinning turbine. Zero or 14+ VDC indicates a stopped turbine. (1 to 4 VDC
could indicate a problem.)
13. Compare and record
the displayed values
with those shown by
the building control
system.
Scroll through each page of the BTU meter display menu and compare the
displayed values with those shown on the building control network. Record
the results.
End of standard commissioning. Please contact ONICON at (727)447-6140 with any questions.
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