Onicon F-3500 User Manual

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • sales@onicon.com
F-3500 Insertion Electromagnetic Flow Meter Manual 02/18 - 0665-11 Page 25
4.2 START-UP AND COMMISSIONING
Please read the entire procedure before proceeding. A worksheet for checking off the following steps and
recording measured values is located on the next page.
1. Conrm ow meter
location. Conrm 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 identied in this manual. Contact ONICON’s technical support
department to discuss specics of your application. If straight pipe run is very short,
consult factory PRIOR to installing the meter to discuss possibility of upgrade to an
F-3000 series inline meter.
2. Conrm pipe size. Conrm that the meter is tagged for the pipe size in which it is installed. When in doubt,
measure the circumference of the pipe. Pipe O.D. = (circumference / 3.14) – (insulation
thickness x 2).
3. Conrm insertion depth and
orientation.
Standard conguration meters come with an insertion depth gauge and instruction tag.
Small pipe conguration meters come with an insertion depth tool. Ensure that the meter
is inserted to the correct depth and that the electronics enclosure is parallel with the pipe
with the arrow in the direction of ow.
4. Conrm control system
programming.
Conrm that the control system input point is properly congured for the analog range
(or scale factor) identied on the calibration tag & certicate.
5. Conrm connection to correct
ONICON display or Btu meter
(if ordered).
Conrm that the ow 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 the wiring is correct as shown in this manual and/
or the additional wiring diagram provided with ONICON display or Btu meter. If in doubt,
contact ONICON for assistance before proceeding further.
7. Conrm correct supply voltage. Verify that 24 (±4) V is available.
8. Connect power. Wait approximately 45 seconds after power-on before proceeding further.
The following steps require ow in the pipe. Flow signal readings should be taken while holding the ow rate constant, if possible.
Otherwise, take the various output readings as quickly as possible.
9. Measure and record
frequency output.
The frequency output signal is a 0-15 VDC pulsed output ranging up to 200 Hz and
must be measured with a multimeter. Measure DC frequency (Hz) from GREEN(+)
to YELLOW(-). Also measure DC volts on same wires. Five to 7 VDC is normal for a
pulsating output. Zero VDC indicates no output.
GPM = frequency in Hz X 60
meter factor in ppg (Refer to calibration tag for meter factor.)
10. Measure and record analog or
pulse outputs.
Current Output:
Voltage Output:
Scaled Output:
Refer to ow meter wiring diagram for wire colors for the various outputs available, based
on your particular ow meter model. Use the following formulas to calculate ow rate from
measured analog signals:
GPM = (measured current in mA - 4) X Full Scale Analog Flow Rate
16
GPM = measured VDC X Full Scale Analog Flow Rate
10
Each contact closure = unit volume identied as “Scale Factor” (measure and record time
interval between contact closures)
11. Compare various output
signals to each other and to
the ow rate displayed by the
control system.
Compare the ow rates calculated in steps 9 and 10 to each other and to the ow rate
indicated by the control system. Refer to troubleshooting guide when readings are
inconsistent.
End of standard start-up and commissioning. Please contact ONICON at +1 (727) 447-6140 with any questions.

Onicon F-3500 Specifications

General

Brand	Onicon
Model	F-3500
Category	Measuring Instruments
Language	English