Sealoff Fittings - Rice Lake IQ plus 810 XPCD Installation Manual

2.2

Sealoff Fittings

The utmost care must be taken to completely seal the inside of the enclosure off from the outside world. To do
this all wiring into and out of the enclosure must be in conduit using sealoff fittings between the enclosure and
the conduit. The sealoff fittings ensure that the hazardous atmosphere does not travel either through the conduit
or through insulation or wiring back to the safe area. The graphic shown below illustrates the location of sealoff
fittings.
SEAL FITTING
18" MAX.
FROM BOX
AC POWER
IN 115 VAC
I.S. GROUND
These fittings, once installed and sealed are very difficult to remove so make sure all the wiring has been double
checked before beginning. If rigid conduit is not being used for connection to the scale base, be sure to install an
approved strain relief fitting to avoid pulling the wires out of the sealoff fittings in an accident. Doing so would
open a flame path to the enclosure and defeat its purpose.
Note: The inside of an explosion proof enclosure is considered a Division II area when the enclosure has
been properly sealed by having the bolts torqued down to approximately 35-45 ft.-lb.
ZERO G/N TARE UNITS PRINT
DISP NEW
1 2 3
ACCUM I.D.
START
DISP SCALE
4 5 6
R.O.C. #
ABORT
DISP
7 8 9 SET
TARE
POINT
0 TIME/
• CONFIG RUN
ENTER CLEAR
DATE STOP
MODE MODE
DIGITAL
SERIAL
I/O
MAKE SURE THE MOUNTING SUPPORT IS CAPABLE
OF HOLDING CONDUIT TIGHT AGAINST IT. NO
STRAIN MUST BE PLACED ON THE SEALOFF
FITTING ASSEMBLY.
WHEN USING FLEXIBLE CONDUIT, USE
MULTIPLE PIPE STRAPS TO SECURE
R I G I D C O N D U I T T O T H E S U P P O R T
STRUCTURE. ATTACH THE FLEXIBLE
CONDUIT TO THE RIGID CONDUIT ONLY
AFTER MULTIPLE STRAPS HAVE BEEN
ATTACHED TO PREVENT ANY STRAIN
FROM REACHING THE SEAL-OFF FITTINGS.
TO LOAD CELLS
INTRINSICALLY SAFE
WIRING AND GROUND
Installation and Wiring 7