Onicon F-1110 Owner's Manual

Owner’s Manual for ONICON Insertion Turbine Flow Meters • September 27, 2001
16
4.2 START-UP AND COMMISSIONING
Please read the entire procedure carefully before proceeding. Wiring diagrams are located in the
appendix. A worksheet for checking off the following steps and recording measured values is located on
the following pages.
1.
Confirm meter location
and adequate straight
pipe run to achieve
desired results
Is the meter located in the correct location as required by the plans?
Compare actual straight pipe upstream and downstream of the meter location to recommended
distances identified in the installation manual. Note that the manual is very conservative, assuming
worst-case pipe obstructions; contact ONICON’s technical support department to discuss specifics
of your application. If straight pipe run is very short, consult factory PRIOR to installing a single
turbine meter to discuss possibility of upgrade to a dual turbine meter.
2.
Confirm Pipe Size
Confirm that the meter is tagged for the pipe size it is installed in. When in doubt, measure the
circumference of the pipe. Pipe O.D. = (circumference / 3.14) – (insulation thickness x 2)
3.
Confirm insertion depth
and orientation
Each flow meter comes with an attached insertion gage and instruction tag. Ensure that meter is
inserted to correct depth and that the electronics enclosure is parallel with the pipe, with the arrow
in the direction of flow.
4.
Confirm control system
programming
Confirm that the control system input point is properly configured for the analog range (or binary
scale factor) identified on the flow meter calibration tag & certificate.
5.
Confirm connection to
correct ONICON display
or BTU Meter (if ordered)
Confirm that the flow meter serial number matches the ONICON display or BTU meter serial
number (when ordered together)
6.
Verify wiring before
connecting power
Prior to connecting the power, verify that wiring is correct as shown in this manual and/or additional
wiring diagram provided with ONICON display or BTU meter. If in doubt, call factory for assistance
before proceeding further.
7.
Confirm correct supply
voltage
Verify that 24 (+/- 4) V is available. Serial Numbers 115692 and later can accept 24 V DC or AC,
but earlier meters required 24 VDC. Note: ONICON display module or BTU Meter provides 24
VDC to the flow meter. ONICON display modules and BTU meters are typically powered by 120
VAC, however, low voltage versions are also available.
8.
Connect power
Wait approximately 45 seconds after power-on before proceeding further.
The following steps require flow in the pipe. Flow signal readings should be taken while holding the flow rate constant if
possible, otherwise, take the various output readings as quickly as possible.
9.
Measure and record
frequency output(s):
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) from
GREEN(+) to BLACK(-). Also measure DC volts on same wires. 5 to 7 VDC is normal for a
spinning turbine, 0 or 14+ VDC indicates a stopped turbine. (1 to 4 VDC could indicate a problem)
GPM = Frequency in Hz X 60
Meter Factor in ppg (refer to calibration tag for meter factor)
For Dual Turbine Models, also measure and record the top and bottom turbine signals
TOP: WHITE(+) to BLACK(-) BOTTOM: ORANGE(+) to BLACK(-)
10.
Measure and record
analog or binary outputs
Current Output:
Voltage Output:
Divided Output:
Scaled Output:
Refer to flow meter wiring diagram for wire colors for the various outputs available, based on your
particular flow meter model. Use the following formulas to calculate flow rate from measured
analog signals:
GPM = (measured current in mA - 4) X Full Scale Analog Flow Rate
16
GPM = measured DC volts X Full Scale Analog Flow Rate
10
Same calculation as step 9, except use “divided meter factor” (measure and record frequency)
Each contact closure = unit volume identified as “Scale Factor” (measure and record time interval
between contact closures)
11.
Compare various output
signals to each other and
to the flow rate displayed
by the control system
The top and bottom turbine frequencies (dual) should be within about 20% of each other and their
average should equal the average frequency output.
Compare the flow rates calculated in STEPS 9 and 10 to each other and to the flow rate indicated
by the control system. Refer to troubleshooting guide when readings are inconsistent.
End of standard start-up and commissioning. Please contact ONICON’s technical service department at (727) 447-6140 with any questions.

Onicon F-1110 Specifications

General

Brand	Onicon
Model	F-1110
Category	Measuring Instruments
Language	English