Siemens 7MF4333 User Manual page 20

Introduction
An enclosure ground connection is located on the housing beneath the field terminal enclosure cap. The
enclosure should always be grounded by a wire connected from this terminal to an earth ground, even
when a ground may be provided by metal conduit protecting the loop wiring.
2
1
+
3
1 Digital display, optional
2 Magnetic pushbutton access cover
3 Enclosure cap
A. Digital Display
Transmitters have an intrinsically safe, explosion proof, NEMA 4x (IP67/68), field mountable, hardened
enclosure. Electrical conduit connections are 1/2-14 NPT or M20 x 1.5. All process wetted materials are
316 stainless steel or better. The flush-mount process connection of the liquid level model is compatible
with standard ANSI and metric flange sizes for tanks and pipes.
1-8
+
FIGURE 1-6 Digital Display and Field Terminals
4
1 Field terminals for analog output
2 Analog output test terminals
3 Enclosure ground
4 Electrical entrances; plug unused entrance
B. Field Terminals
UMSITRPDS3-1
4
1
_
+
-4-20mA+
2
3
November 2010