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DM330 Series - Magnetostrictive Level System User's Manual
2.7
Wiring
PROGRAM
PROGRAM INPUT
(White wire)
The AMETEK Drexelbrook Magnetostrictive Level sensor uses
solid state surface mount electronics within the probe itself,
providing a two-wire 4-20 mA output externally powered from
the loop itself. Operating voltage is from 13.5 to 30 Vdc.
Refer to Figures 2-13, 14, & 15 for the wiring connections.
CAUTION
Before setting the Span in a hazardous area, make sure the
programming wire is properly protected through a Safety
Barrier. See the wiring instructions and Installation Drawing
420-0004-233-CD for the proper connections.
Wiring Colors
Signal
US
IN +
RED
IN -
BLACK
WHITE
CHASSIS
GREEN
LOOP IN (–)
(Black wire)
1
4
2
3
Figure 2-11
"M" Probe Connector
For Explosion-Proof Installations See Page 38
EU
BROWN
BLACK
BLUE
WHITE
CHASSIS
(Sheild for Cable)
(Green wire for cord set)
LOOP IN (+)
(Red wire)
EARTH
GROUND
20
LOOP (+)
LOOP (–)
PROGRAMMING
BUTTONS
–
+
ZERO
SPAN
SHIELD
RED
GREEN
BLACK
WHITE
From Sensor - Through Center Hub
on Housing Bottom (Not Shown)
Figure 2-12
"H" Housing Option
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