Rice Lake BenchMark LP - Manual (Page 5)

Introduction 1
About This Manual
This manual is intended for use by service technicians
responsible for installing and servicing the
Benchmark ™ LP low-profile bench scale.
Warning
Some procedures described in this
manual require work inside the summing
board enclosure. These procedures are
to be performed by qualified service
personnel only.
Authorized distributors and their employees
can view or download this manual from the
Rice Lake Weighing Systems distributor
site at
www.ricelake.com
.
1.0 Introduction
The Benchmark LP is a four-cell, low-profile scale.
Features include:
• Available in sizes from 18 in. x 18 in (.46 m x
46 m) to 36 in x 36 in (.91 m x .91 m).
• Capacities from 100 to 1000 lbs (45 - 453 kg).
• Fully electronic low-profile load receivers.
• Four corner-mounted, FM-approved planar
beam load cells.
• Signal-trim summing board for any necessary
corner corrections, mounted under a stainless
s t e e l c o v e r t h a t c a n b e s e a l e d f o r
legal-for-trade.
• All models come pre-trimmed; corner
corrections should not be necessary.
• Load cell cables are held down with
replaceable cable ties near each corner.
• Adjustable feet can be used to allow leveling
of the scale to compensate for minor floor
irregularities.
• Holes are located in the lower frame to be
used for permanent mounting applications.
Model Designations
The model identification label is located on the side of
the frame. Include both model number and serial
number when ordering replacement parts.
Electrical Grounding
For systems where the scale is connected to a 115
VAC circuit, the indicator must be directly connected
to an earth ground with a ground interface cable of no
more than 3 Ω resistance throughout its length.
Load Cells
• Four (4) Rice Lake RLBLP (planar beam)
• Rated Excitation: 5-15 VDC
Grade Level Requirement
The supporting surface of the scale (encompassing
four feet) must be level within
1
/
4
in of horizontal.
End Load Capacity
60% of full scale capacity.
Platform Dimensions, Capacity, and Torque Specs
Table 1-1. Platform dimensions and capacity
*Non-NTEP
Part Number Capacity Platform Dimensions (LxWxH) Torque To
97662 100 lbs. 18” x 18” x 1.67” (2.63“ with leveling feet) 50 LB S PER IN
97663 250 lbs. 18” x 18” x 1.74” (2.50“ with leveling feet) 125 LB S PER IN
97664 500 lbs. 18” x 18” x 1.93” (2.69“ with leveling feet) 125 LB S PER IN
97665 100 lbs. 24” x 24” x 1.69” (2.66“ with leveling feet) 50 LB S PER IN
97666 250 lbs. 24” x 24” x 2.07” (2.83“ with leveling feet) 125 LB S PER IN
97667 500 lbs. 24” x 24” x 2.26” (3.02“ with leveling feet) 125 LB S PER IN
97668 500 lbs. 30” x 30” x 2.26” (3.02“ with leveling feet) 125 LB S PER IN
97669* 1000 lbs. 30” x 30” x 2.70” (3.47“ with leveling feet) 20 LB S PER FT
97670 500 lbs. 36” x 36” x 2.26” (3.02“ with leveling feet) 125 LB S PER IN
97671* 1000 lbs. 36” x 36” x 2.70” (3.47“ with leveling feet) 20 LB S PER FT