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 21
3.5 WIRING CONNECTIONS
Make all connections to the attached 10 ft cable.
The most common causes of electronic failures are mis-wired connections during installation.
When adding additional cable, record and carefully document any substitution of wire colors.
Additional cable may be purchased from ONICON that will allow you to maintain the existing
color coding.
All electrical connections to the F-3500 must be made through the 10 ft cable provided with the
meter. This cable is not designed to be removed in the eld, and any attempt to do so will
compromise the weather tight integrity of the enclosure. Special care is required to ensure that
the F-3500 is connected to earth through the green/yellow earth wire. This connection is required
to prevent random electrical noise from interfering with the operation of the meter. (See section
3.5.2 for details.)
CAUTION
Do not attempt to remove the existing cable or to remove the factory installed connection tting.
Doing so will compromise the weather tight integrity of the enclosure and may void the warranty.
CAUTION
Only qualied personnel should attempt to make electrical connections to the F-3500. Failure
to properly connect the F-3500 power, signal or earth connections may result in damage to the
F-3500 and/or to associated peripheral equipment.
!
!
½" FNPT
conduit connection
Insertion depth
gage provided
with each meter
FLOW
Customer provided
conduit and adapters
Output signal(s)
to control
system
ONICON
Display or
BTU Meter
(Optional)
Allow enough slack
in the flexible conduit
to permit the meter
to be removed
from the valve.
3.5.1 Signal and Power Wiring Connections
* Small pipe conguration meters utilize an insertion depth tool
Install meter as shown using ex conduit and junction box. Leave sufcient slack in ex conduit to allow the
meter to be removed without disconnecting cable. Run factory installed meter cable to junction box through
ex conduit making connection to eld wires at this point.
*

Onicon F-3500 Specifications

General

Brand	Onicon
Model	F-3500
Category	Measuring Instruments
Language	English