Onicon F-3100 Series Manuel d'utilisateur télécharger pdf (Page 27)

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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 congured 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

IMPORTANT NOTE

This option is not eld 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 Congurations

ONICON pre-programs the analog and pulse outputs based on application specic data

provided at the time the meter is ordered. The table below shows how the pulse outputs

are congured based on whether the application has bi-directional ow 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 congured for frequency if the ow meter is provided with a peripheral device.

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Onicon F-3100 Series Manuel d'utilisateur Page 27