ONICON F-3100 Series - Manual (Page 27)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]
F-3100 Flow Meter Manual 06/14 - 0670-7
Page 27
3.3 ELECTRICAL INSTALLATION
3.3.1 Input Power Requirements
F-3000 Electromagnetic Flow Meters equipped with standard transmitters are available
with two different options for input power. This is not a user selectable function and must
be configured at the factory.
Special care is required to ensure that the F-3100 is properly connected to earth through
an earth wire. This connection is required to prevent random electrical noise from
interfering with the operation of the meter. (See section 3.3.3 for details.)
* Low Voltage: 10 – 63 VDC, 15 – 45 VAC 45/66 Hz, 300 mA maximum
* High Voltage (Mains): 90 – 265 VAC 45/66 Hz, 35 mA maximum
!
!
i
IMPORTANT NOTE
This option is not field selectable. Contact the factory if you need to change the input voltage
rating.
CAUTION/WARNING
This product must be connected to earth ground for proper operation. Failure to do so will result in
erratic operation and an increased risk of injury.
WARNING
All mains voltage connections must be made through pre-drilled conduit/strain relief opening
located at the bottom of the enclosure. Failure to do so will result in an increased risk of injury.
3.3.2 Power and Output Signal Wiring Instructions
Factory Default Output Configurations
ONICON pre-programs the analog and pulse outputs based on application specific data
provided at the time the meter is ordered. The table below shows how the pulse outputs
are configured based on whether the application has bi-directional flow and if the meter
will be connected to an ONICON peripheral device such as an ONICON Btu meter or
display module.
In all applications the analog 4-20 mA output is available at terminals 9 (+) and 10 (-).
Application Pulse Output #1
Terminals: 16 (+) & 17 (-)
Pulse Output #2
Terminals: 18 (+) & 19 (-)
Standard Frequency Scaled Pulse
Bi-directional *Scaled Output Flow Direction
* This output will be configured for frequency if the flow meter is provided with a peripheral device.