Transmitter Wiring; Two-Wire Transmitters; Curs100 L Terminal Connected To A Data Logger G Terminal Using A Jumper Wire - Campbell CURS100 Product Manual

NOTE
4.

Transmitter Wiring

4.1

Two-Wire Transmitters

CURS100 100 Ohm Current Shunt Terminal Input Module
FIGURE 3-1. CURS100 L terminal connected to a data logger G
terminal using a jumper wire.
Normally the L terminal on the CURS100 should be connected to
a data logger G terminal (power ground) with a jumper wire
(FIGURE 3-1). Connecting the L terminal to the adjacent ground
(⏚ or G) terminal on the CURS100 can result in unwanted return
currents on the data logger signal ground, which could induce
undesirable offset errors
measurements. The G terminal on the CURS100 can be used to
connect cable shields to ground.
Current transmitters differ mainly in how they are powered and in the relative
isolation of the current output. This section groups the transmitters by the total
number of wires the transmitter uses to obtain power and output the current.
In a two-wire transmitter, the power supply is in series within the current loop.
The transmitter regulates the amount of current that flows; the current drawn
from the battery is exactly the current used as a signal.
in low-level, single-ended
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