OPERATION AND INSTALLATION
RCI-4100 SYSTEM
MAN-1111 Rev H
©Copyright 2015 LSI-Robway Pty Ltd
Page 14
2.3.1.
Boom Angle Sensor (EEx d)
The boom angle sensor consists of a 90 degree inclinometer housed in an EEx d explosion proof
enclosure. The angle sensor comes complete with a standard mounting plate and kit suitable for
simple and fast direct mounting to either the boom butt area or chord/lacings. Ideally the angle
sensor should be mounted “inside” the boom in a convenient position close to the operators cab.
The figure below shows direct mounting to the butt area where the bracket is already tack welded
to the boom. If welding or drilling is absolutely essential please refer to proper welding procedure
and approval from the crane manufacturer. Mount the sensor on the bolts or plate, ensuring that
when you look out of the cabin, towards the boom, the angle sensor is vertical and is not tilting to
the left or right.
Figure 1 EEx d angle sensor and typical installation at the boom butt section
Alternatively, the angle sensor can be “clamped” to the chord/lacing closest to the boom butt area
by using the universal mounting plate and bolts provided. The position of the angle sensor
enclosure on the boom chord can be at an angle (inclined to follow the chord angle), so long as the
inclinometer inside is adjusted as described in section 7.4.3., Verifying Operation of Sensors. The
boom angle sensor is shipped with the inclinometer correctly mounted for right hand mounting. If
the angle sensor is fitted on the left hand side the internal inclinometer will need to be rotated for
correct operation. Refer to Section 7.4.3., Verifying Operation of Sensors.
Route the cable carefully around the boom and boom pivot to the cabin. The angle sensor cable is
passed through a gland in the controller unit before terminating into DIN mounted terminals. Fix the
cable using adequate straps and fixings ensuring that the cable is not pinched or stretched as the
boom moves through its full luffing arc (see also “Cabling (Sensors)” Section 2.3.6).
Note:
The supplied armoured cable must be used to connect the boom angle sensor to the
controller
Reference the applicable drawing(s) in APPENDIX N, System Drawings
CAUTION:
HIGH TENSILE BOOMS REQUIRE PROPER WELDING PROCEDURE
SPECIFICATIONS. OBTAIN SPECIALIST ASSISTANCE WHEREVER
APPLICABLE.
CAUTION: THE ANGES4130 INCLINOMETER HOUSES NON-INTRINSICALLY SAFE
CIRCUITS WITHIN AN EX D HOUSING. BLUE-JACKETED CABLE INDICATES
AN INTRINSICALLY SAFE CIRCUIT AND MUST NOT BE USED WITH THE
ANGES4130 IN A HAZARDOUS ZONE. LOCAL INSTALLATION GUIDELINES
GOVERNING SAFE AREA CIRCUITS TRAVERSING HAZARDOUS ZONES
MUST BE FOLLOWED. THE CABLE MUST BE PROTECTED FROM
MECHANICAL DAMAGE; LSI-ROBWAY SUPPLIES AN ARMOURED CABLE
WITH EPOXY EX D GLAND SEALING KITS FOR THIS PURPOSE.
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