Meriam M2110L SMART LEVEL GAUGE - Manual (Page 27)

9R143 Dated 3/2011
25
INSTALLATION AND WIRING
The SetPoint model
utilizes the multi-
function terminal strip
shown at the left. This
terminal strip has a
NEMA 1 rating.
SPDT relays are not
powered by the gauge
internally. Jumpers
from the 24Vdc,
115Vac or 230Vac
power sources can be
used if required.
The Current Loop
model uses a cannon
connector that is
designed to meet
NEMA 4X
requirements. The
charts at the left show
the terminal and wiring
arrangement. Wiring
schematics for the
three and four wire, 4
to 20 mA loops are
shown on page 26.
Note: The Smart Gauge comes with 1/8” FNPT pressure port(s). Gauge and Absolute models
only use one pressure port. The unused port vents the enclosure/sensor to atmosphere. DO NOT
REMOVE THE SINTERED PLUG (ALLEN HEAD FITTING). The Smart Gauge should be
panel-mounted or held firmly in one hand while a small wrench is used to tighten the 1/8”
MNPT pipe thread. Do not tighten the fitting without using a wrench on the manifold.
GND