METTLER TOLEDO 2158/2160/2162 VERTEX Floor Scale Installation and Service Manual
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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.