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4. Electrical Installation
All wiring connections should be made with good quality shielded instrument cable; wiring
between terminals which are inside the instrument enclosure, or between a flowmeter and an
integrally mounted instrument may use non-shielded wire. Cable shields or drain wires should
be connected to the instrument ground (GND) at the instrument end only – isolate the
shield/drain wire at the flowmeter end of the cable.
The terminal connections on the instrument will allow for usage of wiring up to 2.5mm
2
cross
section (14AWG) – if two wiring connections into the same terminal are required the
maximum cross section of each wire is 0.75mm
2
. Wire insulation should be stripped to a length
of 6.5mm and conductors should be fitted to the terminals so that there is minimal exposed
conductor. Terminals can be tightened with a No.1 Phillips head screwdriver, or a 3mm or 1/8”
flat blade screw driver.
4.1 Terminal Identification
The terminal connections are divided into 4 separate sections by their function; all input
terminals are on the left and all output terminals on the right - see below for more detail.
There is a separate ground (GND) terminal in each section of terminals; as this instrument has
a common ground, all GND terminals are internally connected.
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General