Vertex 2158 Analog Manual

B14691400A
(2/01).00
2158 Analog
2160 DigiTOL®
2162 IDNet
VERTEX®Floor Scales
Installation and Service
Manual

© Mettler-Toledo, Inc. 1996, 2001
No part of this manual may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, for any purpose without the express written
permission of Mettler-Toledo, Inc.
U.S. Government Restricted Rights: This documentation is furnished with Restricted Rights.

METTLER TOLEDO
Publication Revision History
An overview of this manual’s revision history is compiled below.
Publication Name: 2158 VERTEX Floor Scales Installation and Service Manual
Part Number: A14691400A Publication Date: 11/96
Part Number Date Revisions
B14691400A 2/01 Replaced declarations of conformity. Added standard model numbers table. Replaced
NIST and OIML acceptance tolerance graphs. Replaced analog junction box drawing.
Removed information about DigiTOL smart mode junction box.

INTRODUCTION
This publication is provided solely as a guide for individuals who have received Technical Training in
servicing the METTLER TOLEDO product.
Information about METTLER TOLEDO Technical Training can be obtained by writing, calling, or faxing:
METTLER TOLEDO
1900 Polaris Parkway
Columbus, Ohio 43240 USA
Phone: [phone]
Fax: [phone]
www.mt.com
WARNING!
This equipment generates, uses, and can radiate radio frequency energy and if not installed and used
properly, i.e., in accordance with the instructions manual, may cause harmful interference to radio
communications. It has been tested and found to comply with the limits for a Class A computing device
pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection
against such interference when operated in a commercial environment. Operation of this equipment in a
residential area is likely to cause interference to radio communications in which case the user at his own
expense will be required to take whatever measures may be required to correct the interference.
METTLER TOLEDO RESERVES THE RIGHT TO MAKE REFINEMENTS OR
CHANGES WITHOUT NOTICE.

Declaration of conformity
Konformitätserklärung
Déclaration de conformité
Declaración de Conformidad
Conformiteitsverklaring
Dichiarazione di conformitá
We/Wir/Nous/Wij/Noi: Mettler-Toledo, Inc.
1150 Dearborn Drive
Worthington, Ohio 43085 USA
declare under our sole responsibility that the product,
erklären, in alleiniger Verantwortung, daß dieses Produkt,
déclarons sous notre seule responsabilité que le produit,
declaramos, bajo nuestra sola responsabilidad, que el producto,
verklaren onder onze verantwoordelijkheid, dat het product,
dichiariamo sotto nostra unica responsabilitá, che il prodotto,
Type: Analog Load Cells
Models: 744, 745 and 745A
(when used within the technical requirements listed in Mettler Toledo documentation and installed as a Load receptor as
listed in Type approval certificate T2206, Table 4.)
to which this declaration relates is in conformity with the following standard(s) or other normative document(s).
auf das sich diese Erklärung bezieht, mitder/den folgenden Norm(en) oder Richtlinie(n) übereinstimmt.
Auquel se réfère cette déclaration est conforme à la (aux) norme(s) ou au(x) document(s) normatif(s).
Al que se refiere esta declaración es conforme a la(s) norma(s) u otro(s) documento(s) normativo(s).
Waarnaar deze verklaring verwijst, aan de volende norm(en) of richtlijn(en) beantwoordt.
A cui si riferisce questa dichiarazione è conforme alla/e sequente/i norma/e o documento/i normativo/i.
CE Conformity / CE-Konformität / Conformité CE
90/384/EU Nonautomatic Balances and Scales / Nichteselbsttätige Waagen / Balances à Functionnement non automatique
Article 1.2.a.
89/336/EU EMC Directive / EMU-Richtlinie / Directive concernant la CEM
EN55 022, B: 1987 Emissions / Funkstörungen
EN50 082-2: 1995 Immunity
73/23/EU Low Voltage / Niederspannung / basse tension
EN61010-1 el. Safety / el. Sicherheit / sécurité el.
94/9/EC concerning equipment and protective systems intended for use in potentially explosive atmospheres
EN 50 014 : 1977 + A1…A5, General requirements
EN 50 020 : 1977 + A1…A5, Intrinsic safety “i”
Other Directives and Standards / Andere Richtlinien und Normen / Autres documents
corresponding to local requirements / entsprechend lokalen Anforderungen / correspondant aux exigences locales
R60 OIML International Recommendation, Metrological regulation for load cells
EEx ib IIC T4 el. Safety / el. Sicherheit / sécuritéel. (PTB Nr. Ex-95.D.2051, for models 744 and 745)
EEx ib IIC T4 el. Safety / el. Sicherheit / sécuritéel. (KEMA No. Ex-98.D.0965, for model 745A)
Darrell Flocken, Manager - Weights & Measures
Office of Weights and Measures
Worthington, Ohio USA
September, 1996
Revised January 1999 (Added: model 745A, conformity to 89/336/EU – 73/23/EU – 94/9/EC)
according to EN45014

PROPRIETARY NOTICE
The information contained in this publication is derived in part from proprietary and patented data of METTLER TOLEDO. This
publication shall not be copied in whole or in part without prior written approval of METTLER TOLEDO, nor shall it be used for
any purpose other than that intended. This document is subject to change without notice.
STANDARD WARRANTY
METTLER TOLEDO warrants that the equipment covered by this warranty will be free from defects in workmanship and material
for two years from date of installation or twenty-six (26) months from date of shipment to the buyer, whichever comes first.
Should any such defects be found and reported during the first thirty (30) days after installation (if installation occurs during
the warranty period), METTLER TOLEDO (herein referred to as the “Company”) will, at its option, refund the purchase price or
correct such defects, furnishing replacement parts and service free of charge to the buyer. For the remainder of the first 12
months of the warranty term, the Company will furnish necessary replacement parts and on-site technician’s service free of
charge, provided the Buyer agrees to pay reasonable technician’s travel time, vehicle mileage, and associated travel expenses
to and from the nearest authorized Company service location. If the equipment is covered by a two-year warranty, for the last
12 months or remaining balance of the warranty period, whichever comes first, the Company will furnish the necessary
replacement parts to the Buyer free of charge, provided that the Buyer agrees to pay reasonable technician’s on-site labor
services, travel time, mileage, and expenses to and from the nearest authorized Company service location. The following are
NOT covered under any of these warranties:
1. Initial installation and ongoing scale calibration.
2. Damage to scale components by gross abuse, fire, flooding, explosion, water, voltage surges, or civil disturbance.
3. Normal maintenance or consumable items.
This warranty covers only Model 2158, 2160, and 2162 VERTEX floor scales. Refer to METTLER TOLEDO Standard Product
Warranty for coverage of other scale system components, including scale instrument, printer, and/or other accessories.
THE COMPANY EXPRESSLY WARRANTS THE EQUIPMENT MANUFACTURED BY IT AS SET FORTH HEREIN. THE COMPANY
MAKES NO OTHER WARRANTIES EITHER EXPRESSED OR IMPLIED (INCLUDING WITHOUT LIMITATION WARRANTIES AS TO
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE). IN ADDITION, THIS DOCUMENT SHALL CONSTITUTE THE SOLE
AND EXCLUSIVE REMEDIES OF THE BUYER FOR ANY BREACH BY THE COMPANY OF ITS WARRANTIES HEREIN.
COMPANY LIABILITY UNDER THIS WARRANTY OR ANOTHER WARRANTY, WHETHER EXPRESSED OR IMPLIED IN LAW OR
FACT, SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE MATERIAL AND WORKMANSHIP, AND IN NO
EVENT SHALL IT BE LIABLE FOR CONSEQUENTIAL OR INDIRECT DAMAGES.
This warranty coverage is applicable only to the United States of America.
Export Products: The Company warrants equipment destined for export or sold for export to be free from defects in
workmanship and material for a period of one year from date of installation or 18 months from date of shipment to the Buyer,
whichever occurs first. Should any such defect be found within that period, parts will be furnished free of charge (ex works)
point of origin or final distribution center. If the Buyer requests the performance of warranty work provided for under the
foregoing warranty outside of the contiguous United States, the Buyer shall be required to pay for labor, travel time, living, and
travel expenses of any personnel required to perform such warranty work.
APPLICATION GUIDES
The only warranty of METTLER TOLEDO is for the product it supplies under the Product Warranty Statement listed above.
Weighing application guidelines pertain to METTLER TOLEDO products.

Precautions
WARNING
PERMIT ONLY QUALIFIED PERSONNEL TO SERVICE THIS
EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS,
TESTS, AND ADJUSTMENTS THAT MUST BE MADE WITH
POWER ON. FAILING TO OBSERVE THESE PRECAUTIONS CAN
RESULT IN BODILY HARM.
WARNING
FOR CONTINUED PROTECTION AGAINST SHOCK HAZARD,
CONNECT TO PROPERLY GROUNDED OUTLET ONLY. DO NOT
REMOVE THE GROUND PRONG.
WARNING
DISCONNECT ALL POWER TO THIS UNIT BEFORE INSTALLING,
SERVICING, CLEANING, OR REMOVING THE FUSE. FAILURE
TO DO SO COULD RESULT IN BODILY HARM AND/OR
PROPERTY DAMAGE.
CAUTION
BEFORE CONNECTING/DISCONNECTING ANY INTERNAL ELECTRONIC COMPONENTS OR
INTERCONNECTING WIRING BETWEEN ELECTRONIC EQUIPMENT, ALWAYS REMOVE
POWER AND WAIT AT LEAST THIRTY (30) SECONDS. FAILURE TO OBSERVE THESE
PRECAUTIONS COULD RESULT IN BODILY HARM OR DAMAGE TO OR DESTRUCTION OF
THE EQUIPMENT.
CAUTION
OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES.
READ this manual BEFORE
operating or servicing this
equipment.
FOLLOW these instructions
carefully.
SAVE this manual for future
reference.
DO NOT allow untrained
personnel to operate, clean,
inspect, maintain, service, or
tamper with this equipment.
ALWAYS DISCONNECT this
equipment from the power
source before cleaning or
performing maintenance.
CALL METTLER TOLEDO for
parts, information, and service.

CONTENTS
1Introduction ..................................................................................................1-1
Model Numbers.................................................................................................................. 1-1
Load Cells.......................................................................................................................... 1-2
Load Cell Specifications........................................................................................................1-2
Scale Accuracy ................................................................................................................... 1-3
End Loading ....................................................................................................................... 1-4
Platform Assembly.............................................................................................................. 1-4
Support Frames ..................................................................................................................1-4
Standard ............................................................................................................................ 1-4
Above-Floor Frame...............................................................................................................1-4
Quick-Pit In-Floor Frame......................................................................................................... 1-5
Forklift Channel Frame..........................................................................................................1-5
Truck Dock Frame ............................................................................................................... 1-6
Access Ramps ....................................................................................................................1-6
2 Inspection and Site Selection .........................................................................2-1
Inspection .......................................................................................................................... 2-1
Site Selection..................................................................................................................... 2-1
3 Installation (Top of Floor) ..............................................................................3-1
Locate Scale....................................................................................................................... 3-1
Remove Platform ................................................................................................................ 3-1
Anchor Frame..................................................................................................................... 3-1
Route/Attach Instrument Cable ............................................................................................ 3-3
Modes of Operation ............................................................................................................ 3-5
Analog Mode ...................................................................................................................... 3-5
DigiTOL DLC Mode............................................................................................................... 3-6
IDNet Mode......................................................................................................................... 3-7
Reinstall Platform............................................................................................................... 3-8
4 Optional Ramp Installation.............................................................................4-1
5 Optional Scale Guard Installation ...................................................................5-1
6 Optional Forklift Frame Installation.................................................................6-1
7 Quick-Pit Installation (In-Floor) ......................................................................7-1
8 Calibration....................................................................................................8-1
Shift Adjust ........................................................................................................................ 8-1
Analog Junction Box Shift Adjustment.................................................................................. 8-1
DigiTOL Junction Box Shift Adjustment................................................................................. 8-3
IDNet Junction Box Shift Adjustment.................................................................................... 8-3

Scale Calibration................................................................................................................ 8-4
9 Routine Care and Maintenance.......................................................................9-1
General.............................................................................................................................. 9-1
Site Inspection ................................................................................................................... 9-1
Platform Inspection.............................................................................................................9-1
10 Troubleshooting ..........................................................................................10-1
General............................................................................................................................ 10-1
Isolate the Problem .......................................................................................................... 10-2
Check Wiring.................................................................................................................... 10-2
Check Load Cells.............................................................................................................. 10-3
Check Mechanical Components ......................................................................................... 10-4
Load Cell Replacement ..................................................................................................... 10-4
11 Service Parts ..............................................................................................11-1
12 Reference Material......................................................................................12-1
Reference Drawings.......................................................................................................... 12-1
Recommended Spare Parts ............................................................................................... 12-1

Chapter 1: Introduction
Model Numbers
(2/01) 1-1
1Introduction
VERTEX® industrial floor scales are heavy-duty scales that can be installed in a pit or
on top of the floor. Three models are available: 2158 for use with analog indicators,
2160 for use with DigiTOL® indicators, and 2162 for use with IDNet systems.
Model Numbers
The following table shows how standard model numbers are determined for VERTEX
floor scales.
XXXX X X X X X X -X
Model Revision Platform Load Cell
Metrology
Junction Box Size Scale Capacity Scale
Metrology
2158
2160
2162
0 0 = Mild steel,
tread plate
1 = Mild steel,
smooth plate
2 = Stainless
steel, tread plate
3 = Stainless
steel, smooth
plate
0 = 744 H44
2 = 745 H44
4 = 745 R60
0 = Analog
1 = DigiTOL
3 = IDNet
0 = 30"x30"
1 = 3x3 feet
2 = 4x4 feet
3 = 4x5 feet
4 = 5x5 feet
5 = 4x6 feet
6 = 5x7 feet
A = 1x1 m
B = 1.2x1.5 m
C = 1.2x1.2 m
D = 1.5x1.5 m
0 = 500 lb
1 = 1,000 lb
2 = 2,500 lb
3 = 5,000 lb
4 = 10,000 lb
5 = 20,000 lb
6 = 250 lb
A = 600 kg
B = 1,500 kg
C = 3,000 kg
D = 6,000 kg
E = 10,000 kg
-b1
-A2
-B3
-C4
-F5
12,500d for 500-lb, 2,500-lb, and 5,000-lb capacities; 2,000d for 1,000-lb, 10,000-lb, and 20,000-lb capacities.
25,000d for 500-lb to 10,000-lb capacities; 4,000d for 20,000-lb capacities.
310,000d for 500-lb to 20,000-lb capacities.
41,250d for 250-lb capacities.
53,000d for 600-kg to 6,000-kg capacities; 2,000d for 10,000-kg capacities.

METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
(2/01)1-2
Load Cells
All VERTEX floor scales include stainless steel, cantilever-beam load cells with integral
four-conductor, shielded cables (see note). The load cell suspension uses a rocker pin
positioned between the cell and a fixed receiver in the frame (see Figure 1-1). Individual
load cell capacities for Models 2158, 2160, and 2162 are listed below:
Scale Platform
Capacity
Capacity of Each
Load Cell
Minimum Approved
Graduation Size
500 lb
1,000 lb
2,500 lb
5,000 lb
10,000 lb
20,000 lb
250 lb
500 lb
1,250 lb
2,500 lb
5,000 lb
10,000 lb
0.1 lb
0.2 lb
0.5 lb
1.0 lb
2.0 lb
5.0 lb








Bumper Gap
Platform
Frame
Lower Receiver O-Ring
Rocker Pin
Load Cell Load Cell Mounting Screws
Overload
Stop Gap
Figure 1-1: Load Cell and Suspension Detail
Load Cell Specifications
Model number: 745 (744 for 250-lb load cells)
NTEP certificate of conformance: 92-108A2 (91-089 for 250-lb load cells)
EC test certificate: T2154 EC Type Approval: T2206
Maximum excitation voltage: 15 VDC or VAC rms
Recommended excitation voltage: 15 VDC
Full scale output: 2 mV/V
Input terminal resistance: 385 Ohms minimum
Output terminal resistance: 350 + 2 Ohms
Temperature range compensation: -10°C to +40°C (+14°F to +104°F)
Safe side load: 100% of full load cell rating
Safe overload: 150% of full load cell rating
Note: Scales 4’ x 6’ and smaller
use cables that are 7.5’ long.
Scales larger than 4’ x 6’ and all
20K capacity scales use cables
that are 15’ long. DO NOT mix
cables of different lengths within
a platform.

Chapter 1: Introduction
Scale Accuracy
(2/01) 1-3
Scale Accuracy
Models 2158 and 2160 VERTEX floor scales meet or exceed the National Institute of
Standards and Technology (NIST) Handbook 44 requirements for Class III scales.
Standard VERTEX scales meet 5000-division accuracy. Certificates of Conformance No.
91-097 (2158) and No. 94-010 (2160) were issued under the National Type
Evaluation Program (NTEP) of the National Conference on Weights and Measures. The
Model 2162 VERTEX floor scale has not been submitted for approval.
Applied Weight Allowable Error
0 - 500 Divisions
501 - 2,000 Divisions
2,001 - 4,000 Divisions
4,001 - 10,000 Divisions
± 1/2 Division
± 1 Division
± 1.5 Divisions
± 2.5 Divisions
Figure 1-2: NIST Class III Acceptance Tolerances
Applied Weight Allowable Error
0 - 500 Divisions
501 - 2,000 Divisions
2,001 - 10,000 Divisions
± 1/2 Division
± 1 Division
± 1.5 Divisions
Figure 1-3: OIML Acceptance Tolerances (Model 2158 only)
4000d
2000d
500d 10,000d
-2.5
-2.0
-1.5
-1.0
-0.5
+2.5
+2.0
+1.5
+1.0
+0.5
0
Number
of
Divisions
4000d
2000d
500d 10,000d
-2.5
-2.0
-1.5
-1.0
-0.5
+2.5
+2.0
+1.5
+1.0
+0.5
0
Number
of
Divisions

METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
(2/01)1-4
End Loading
Models 2158, 2160, and 2162 may be end loaded up to 100% of the platform’s rated
capacity or two times the individual load cell rating (whichever is less) across any end
of the scale.
Platform Assembly
VERTEX floor scales have a single-channel reinforced platform with a plate that can be
removed to gain access to the junction box. Standard mild steel scales have a safety
tread plate surface. Stainless steel scales have a platform structure very similar to the
mild steel unit. Standard stainless steel scales have a smooth deck surface with a glass
bead blast finish. Threaded holes are provided in the platform. When installing or
removing a platform, screw eyebolts into these holes and lift the platform by the
eyebolts.
Support Frames
Standard
Above-Floor Frame
Standard VERTEX scales have a formed-angle frame with all sides turned under the
scale for a fully captured assembly (see Figure 1-4). When used for top-of-floor
installations, the scales can be equipped with optional ramps to provide access to all
four sides of the scale. Optional scale guards can be mounted on sides of the scale that
do not have ramps, to provide protection in high-traffic areas. Standard VERTEX frames
can be used for in-floor applications; however, a Quick-Pit frame is recommended.
Figure 1-4: VERTEX Frame
VERTEX Scale Platform VERTEX Scale Frame
Floor Line

Chapter 1: Introduction
Support Frames
(2/01) 1-5
Quick-Pit In-Floor Frame
The Quick-Pit frame option provides a unitized scale assembly, eliminating the need for
additional pit coping with in-floor installations. The upper flange of the rugged C-channel
frame acts as the pit coping around the perimeter of the scale platform. The Quick-Pit
frame provides the following benefits:
•Pits are correct depth
•Pits are always square
•No field assembly or welding of coping
•Easy to install, no pit forming required
•Ability to move the scale in the future
Figure 1-5: Quick-Pit Frame
Forklift Channel Frame
The Forklift Channel frame is used when scale portability is required. The rugged C-
channel construction and fork blade guides ensure safe lifting and transport.
Figure 1-6: Forklift Channel Frame
V
ERTEX Scale
VERTEX Quick-Pit Frame
3/8" Typical
Floor
Floor
Frame Support Leg Fork Blade Guides

METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
(2/01)1-6
Truck Dock Frame
The Truck Dock frame option offers maximum scale protection in high-traffic, above-floor
applications. The heavy-duty, C-channel frame is compatible with all standard ramps to
allow access to any side of the scale.
Access Ramps
Access ramps are available for all 2158, 2160, and 2162 VERTEX floor scales. VERTEX
ramps can accommodate single or multi-directional traffic. Ramps are available in 36"
or 60" lengths, depending on the width of the scale. The maximum ramp angles are
listed below:
Scale Capacity Scale Height Ramp Length Ramp Angle
500 to 5,000 lb
500 to 5,000 lb
10,000 lb
20,000 lb
3"
3"
3 3/8"
4"
36"
60"
36"
36"
4.4°
2.6°
4.9°
5.9°

Chapter 2: Inspection and Site Selection
Inspection
(2/01) 2-1
2Inspection and Site Selection
Inspection
When the VERTEX floor scale is delivered, visually inspect it for any damage that might
have occurred during shipment and handling. Inspect the following:
1. Frame assembly for any warping or bent angles
2. Load cell and suspension assemblies
3. Load cell cables
4. Load cell summing junction box
5. Overall platform assembly
If you find any damage, contact your freight carrier immediately.
Site Selection
Many problems associated with floor scale installations are caused by improper site
conditions. Before installing the scale, check the proposed location for the following
conditions:
1. The area where the scale will be located should be level to within 1/4" from the
highest to the lowest corner.
2. The floor/support at each corner of the scale must be strong enough to maintain
support throughout the entire weighing capacity of the scale.
3. There should be proper drainage away from the scale.
4. There should be no heavy vibrations or wind currents at or near the scale.
5. The scale should not be subjected to excessive or unusual loading due to the
location or type of equipment used.
If the site is acceptable, proceed with the installation. If not, choose a new location or
select another scale.

Chapter 3: Installation (Top of Floor)
Locate Scale
(2/01) 3-1
3Installation (Top of Floor)
Locate Scale
After inspecting the site, place the VERTEX floor scale in the desired location.
Remove Platform
To remove the scale platform from the frame, install eyebolts (two 3/4-10 UNC eyebolts
are required) in the threaded holes provided in the platform. Make sure that the eyebolts
are snug and completely threaded into the holes before lifting the platform. Attach a
chain or strap to the eyebolts, and lift the platform with a forklift or crane.
WARNING
USE EXTREME CAUTION WHEN LIFTING AND MOVING
THE SCALE TO THE DESIRED LOCATION. DO NOT
ATTEMPT TO LIFT AND MOVE THE SCALE BY YOURSELF
OR INJURY COULD OCCUR.
Anchor Frame
1. Locate the anchor holes in all four corners of the frame. There are a total of eight
anchor holes, two holes per corner (see Figure 3-1). Scale frames with sides 7 feet
long or longer require an additional anchor at the midpoint of each of those sides.
2. Drill anchor holes into the floor, using the frame as a guide. The 1/2" anchors are
to be provided by others or can be purchased from METTLER TOLEDO. Drill anchor
holes to the diameter and depth specified by the supplier.
3. All corners of the frame must touch the floor and must be level within ±1/16". If the
scale is out of level or if gaps exist between the frame and floor, shim between the
frame and the floor. Corner shims (1/16" thick) can be purchased from METTLER
TOLEDO (Part No. 58-030025) or fabricated using Figure 3-2 as a guide.
4. Secure the frame to the floor by installing the anchors and flat head socket cap
screws (1/2-13 UNC x 1.5" long). The screws are provided with the scale. Be sure
to use flat head screws to maintain clearance between the head of the screw and
the bottom of the deck throughout the weighing range.

METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
(2/01)3-2
Figure 3-1: Frame Corner Detail (Top View)
Figure 3-2: Leveling Shim Detail
1.25"
6.88"
6.25"
1.25"
1.19"
45°
1.19"
6.25"
6.88"
1.88"
Two 1.06" Diameter Holes
Countersunk Anchor Holes
for 1/2" Flat Head Screws
(typical each corner)
Fixed Receiver
Frame
6.5"
1.5"
1.5"
6.5"

Chapter 3: Installation (Top of Floor)
Route/Attach Instrument Cable
(2/01) 3-3
Route/Attach
Instrument Cable
1. Remove the junction box access plate from the platform.
2. A loose coil of instrument cable is located inside the platform channel on either side
of the junction box assembly.
3. Thread the instrument cable through the hole provided in the scale frame and
platform, continuing through the inside of the platform channel and stopping at the
junction box (see Figure 3-3).
Figure 3-3: Instrument Cable Access Locations
Scale Platform
Frame
Instrument Cable Access Hole
(
T
yp
ical two holes
p
er corner
)
Conduit
Quick-Pit Frame
To
p
of Floor
Ram
p
To
p
of Floor
Frame
A
lternate instrument cable
access hole in ram
p
a
pp
lication
Ram
p
Attachment Hole
Scale Platform
Instrument Cable Access Hole
(
T
yp
ical two holes
p
er corner
)
VERTEX Scale (without ramp)
Frame
Ram
p
Attachment Hole
To
p
of Floor
Instrument Cable
VERTEX Scale
(
with ramp
)
1.5" (500 lb to 5K)
2" (10K to 20K)

METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
(2/01)3-4
4. Remove the junction box lid.
5. Loosen the instrument cable connector, and thread the cable through the connector
(pull enough cable to reach the INPUT terminal on the junction box PCB).
6. Route the cable as shown in Figure 3-4.
7. Connect the instrument cable to the INPUT terminal on the PCB as shown in Figure
3-6 For Analog, Figure 3-7 For DigiTOL, or Figure 3-8 For IDNet.
8. Place the desiccant bag inside the junction box.
9. Reinstall the junction box lid. Make sure that the rubber gasket is clean and
correctly positioned. Tighten all screws and make sure all cord grip caps are secure
(see Figure 3-5).
Figure 3-4: Instrument Cable Routing
Cord Grip Cap
Nut
Spherical Washer
Junction Box
Enclosure
Home Run Cable
Rubber Grommet
Body Insert
Figure 3-5: Cord Connector Details
Incorrect Routing
Load
Cell
Correct Routing
Load
Cell
CableCable