E3A-JA3A-F11 Datasheet, PDF (16/60 Pages) Magnetrol International, Inc. – Liquid Level Displacer Transmitter

White
Black
Green
Black
Red
Black
Integral
Terminal Board
Integral Wiring &
LVDT Housings
Conduit seal
within 18" of
this housing
entry for
explosion proof
installation
White
Black
Green
Black
Red
Black
Remote
Terminal Board
Remote Wiring &
Transmitter Housings
Figure 13
Remote Mount Wiring Connections
To install Intrinsically Safe wiring:
1. Make sure the IS barrier is properly installed in the safe area
(refer to local plant or facility procedures). Complete the
wiring from the barrier to the E3 transmitter.
2. After IS barrier installation, follow General Purpose and
Non-incendive wiring procedure on page 15.
3.5.3 Explosion Proof
Explosion Proof (XP) is a method of designing equipment
for installation in hazardous areas. A hazardous location is
an area in which flammable gases or vapors are, or may be,
present in the air in quantities sufficient to produce explo-
sive or ignitable mixtures. The wiring for the transmitter
must be contained in Explosion Proof conduit extending
into the safe area.
To install Explosion Proof wiring – Integral mount:
Due to the specialized design of the Integral E3 transmitter,
no Explosion Proof conduit fitting (EY seal) is required
within 18" of the transmitter. An Explosion Proof conduit
fitting (EY seal) is required between the hazardous and safe
areas. See Agency Approvals, Section 8.4.
1. Install Explosion Proof conduit from the safe area to the
conduit connection of the E3 transmitter (refer to local
plant or facility procedures).
2. Remove the cover to the wiring compartment of the
transmitter.
3. Connect shield to an earth ground at the power supply.
4. Connect an Earth ground wire to the nearest green ground
screw per local electrical code. Use a minimum 18 AWG
rated up to 85° C.
5. Connect the positive supply wire to the (+) terminal and the
negative supply wire to the (-) terminal.
6. Replace the cover to the wiring compartment of the
transmitter before applying power.
Caution: Instrument and conduit junction box covers must be in
place and tightly sealed at all times during operation.
To install Explosion Proof wiring – Remote mount:
1. Install Explosion Proof conduit from the remote mounted
E3 transmitter head to the integrally mounted terminal
housing at the LVDT. An Explosion Proof conduit fitting
(EY seal) is required within 18" of the remote mounted
transmitter head wiring housing (see figure 13). Follow
steps 2 through 7 of Remote Mount wiring procedure on
page 15.
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48-640 E3 Modulevel Displacer Level Transmitter - FOUNDATION fieldbus^™