Rice Lake RL-MIS User manual

132019 - Rev A
Rice Lake Mechanical Baby Scale
RL-MIS and RL-MIS-20
Operation Instructions

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Contents
1.0 Introduction.................................................................................................................................. 1
2.0 Installation Instructions............................................................................................................... 2
2.1 Pillar Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Steelyard Rod Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0 Weigh Platter Installation............................................................................................................ 5
4.0 Zero Adjustment........................................................................................................................... 6
5.0 Weighing a Baby.......................................................................................................................... 6
6.0 Troubleshooting ........................................................................................................................... 7
7.0 Specifications.............................................................................................................................. 7
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© Rice Lake Weighing Systems. All rights reserved. Specifications subject to change without notice.
Rice Lake Weighing Systems is an ISO 9001 registered company
July 2013

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Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars.

1
1.0 Introduction
The Rice Lake Mechanical Baby Scale provides precise weighing of babies and toddlers. The scale comes in two
configurations. Those configurations include:
• RL-MIS (Lb-oz & Kg) with measuring tape in inches and centimeters
• RL-MIS-20 (Kg only) with measuring tape in centimeters
The scale is durable, having a sturdy enameled steel body and a wipe down, molded plastic weighing tray with
measuring ruler. These installation and operating instructions will guide the user through basic instructions on
pillar assembly, plastic weighing tray installation, and the zero adjustment of the scale.
Weigh
beam
Pillar
Molded plastic
weighing tray
Frame
Small poise weight
Large poise weight
Figure 1-1. Rice Lake Mechanical Baby Scale Parts Breakdown
Internet
This manual can be viewed and downloaded from the Rice Lake Weighing Systems web site
at www.ricelake.com/health. Rice Lake Weighing Systems is an ISO 9001 registered
company.

2Mechanical Baby Scale Installation and Operation Instructions
2.0 Installation Instructions
You will receive your Rice Lake Mechanical Baby Scale partially assembled. Those items that need additional
assembly are:
• Pillar assembly
• Steelyard rod connection
• Molded plastic weighing tray assembly
Remove all components from the shipping box and lay out in a convenient place.
2.1 Pillar Installation
Prior to assembly, you’ll need the following tools to finish assembling the Rice Lake Mechanical Baby Scale.
• Phillips head screwdriver
• Multi-purpose tool (included)
The pillar comes separate from the scale base and must be attached prior to use. Use the following steps to attach
the pillar to the scale base.
1. Set the scale base on a table or other convenient place with the bottom facing upwards (shown in left side
photo in Figure 2-1).
2. Remove twisty tie off of the scale base as shown on the left hand side of Figure 2-1. Remove the cable tie
that holds the steelyard rod from shifting during transit (shown in right side of Figure 2-1).
Remove cable tie from steelyard rod
Remove twisty ties
from scale parts
Figure 2-1. Remove Cable Ties

Mechanical Baby Scale Installation and Operation Instructions - Installation Instructions 3
3. Insert the pillar into the scale base assembly ensuring that the RLWS logo located on the weigh beam
faces the
Scale base
Pillar
scale base.
Figure 2-2. Attach the Pillar to the Scale Base
4. Using a phillips head screwdriver, screw in the eight bolts and washers to secure the pillar to scale base.
Figure 2-3. Attach Eight Bolts and Washers to Secure the Pillar to the Scale Base

4Mechanical Baby Scale Installation and Operation Instructions
2.2 Steelyard Rod Connection
The steelyard rod is located inside the scale pillar. Once the pillar is attached to the scale base, the steelyard rod
must be attached to the bottom of the scale.
1. Lay the scale pillar on a table so that the scale platform hangs over the edge of the table and allows you
to access the bottom of the scale.
2. Insert the hook part of the multi-purpose tool (included and shown below) to the small hole in bottom of
the steelyard rod, and pull the hook of the steelyard rod with the hook of the multi-purpose tool to
connect it to the scale base lever as shown in Figure 2-4 then push the scale base lever towards the pillar
head, and hook the bearing of the steelyard rod on the pivot of the long lever.
Multi-purpose tool
Figure 2-4. Connecting the Steelyard Rod to the Scale Base
Note
Visually ensure that the force lever assembly linkage (shown in Figure 2-5) is centered and properly
aligned. Occasionally during shipping, the alignment will become skewed The linkage must be free floating in order for
the scale to weigh properly. The linkage can be seen by looking up underneath the top weigh beam if the scale is slightly
tipped to one side.
Force lever
assembly
linkage must
be properly
aligned in
order to
weigh
Figure 2-5. View Looking up at Linkage up Underneath the Top Weigh Beam
3. Place the scale upright gently back on the table.

Mechanical Baby Scale Installation and Operation Instructions - Weigh Platter Installation 5
3.0 Weigh Platter Installation
The weighing platter comes separate from the scale base and must be attached for proper operation. To attach the
weigh platter to the scale base, use the following instructions.
1. Position the weigh platter on top of the scale platform with the inch/cm marks located next to the pillar as
shown in Figure 3-2.
2. Line up the screw holes as shown in Figure 3-1.
Figure 3-1. Weigh Platter Screw Hole Location
3. Using a Phillips head screwdriver, tighten up the four screws to secure it to the scale platform.
Inch/cm measuring ruler
located next to the scale
pillar.
Figure 3-2. Weigh Platter Attached to the Scale Base

6Mechanical Baby Scale Installation and Operation Instructions
4.0 Zero Adjustment
To ensure accurate weighments, a zero adjustment should be done to the scale upon arrival and setup. To perform
a zero adjustment, perform the following steps.
1. Ensure the scale is sitting upright on a level surface.
2. Make sure that the poise weights are pushed all the way to the left hand side (at zero) making sure that the
large poise is firmly seated in the notch and the small poise is firmly against the shoulder of the beam.
3. Check the eye loop area of the scale to ensure that the scale pointer is centered.
Zero
adjusting
screw
Weigh beam
Scale pointer
Eye loop area
Poise weights
Figure 4-1. Eye Loop Area and Zero Adjusting Screw Location (Lb and kg version shown)
4. If the scale is not balancing properly, then the small zero balance weight must be adjusted. Turn the zero
adjusting screw (shown in Figure 4-2) using the enclosed multi-purpose tool. Depending on the direction
the zero balance weight will move accordingly.
Figure 4-2. Zero Adjusting Screw Location
5.0 Weighing a Baby
To weigh a baby, place the baby on the weigh platter and slide the larger poise (on bottom) to the approximate
target weight. Next move the smaller poise on top until the weigh beam balances and the scale pointer is centered
within the eye loop area as shown in Figure 4-1.