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D01344301A

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Strain gauge load cell Instructions for Use

TC-LPR(T)-G6

Compression Load Cell

Introduction

Thank you for purchasing the TC-LPR(T)-G6 load cell.
Please read this document completely before using this 
load cell to achieve its best performance and ensure safe 
and proper operation.

Included accessories

If anything is missing or damaged, contact the retailer 
where you purchased the product.

Test report × 1
Instructions for Use (this document) × 1
Load button × 1

 

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Company names and product names in this document are the 
trademarks or registered trademarks of their respective owners.

IMPORTANT SAFETY INSTRUCTIONS

V

WARNING

If something abnormal occurs

In the unlikely event that the product produces smoke, a 
strange smell or noise, for example, continuing to use it in 
this abnormal state could cause fire or electric shock. After 
cutting off the power, confirm that smoke is no longer being 
produced. Then, request repair from the retailer where you 
purchased the product.

Do not open the cover.

Never remove the cover from this unit. Doing so could 
cause electric shock. Request inspection and repair from 
the retailer where you purchased the product. Do not 
alter this unit. Doing so could cause fire or electric shock.

Do not put foreign objects or water, for example, 
into the unit.

Do not place a container that holds water, for example, 
on top of this unit. Liquid overflowing or entering the unit 
could cause fire or electric shock.

Do not use the unit with any power supply voltage 
other than that specified.

Do not use the unit with any power supply voltage other than 
that specified. Doing so could cause fire or electric shock.

V

CAUTION

Unsuitable installation locations

Do not place the unit in the following types of locations. 
Doing so could cause fire or electric shock.

 

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Locations where it might be exposed to smoke or steam, 
such as near a kitchen table or humidifier

 

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Unstable locations, including unsteady stands and 
tilted places

 

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Location that are very humid or dusty

 

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Locations that are exposed to direct sunlight

When not using the unit for a long time

For safety, cut the power supply when not using this unit 
for a long time.

Do not operate a damaged unit.

Precautions for use

 

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This unit is not built to be water or splash resistant, 
and it cannot be used in conditions when the relative 
humidity is high. Moreover, use in atmospheres with 
corrosive gases should be avoided.

 

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Be careful to prevent water, oil and other substances 
from getting on the unit.

 

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Avoid use in conditions where condensation could occur.

 

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Connect cores to the load cell after discharging (eliminating) 

static electricity from your body.

 

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If the surrounding temperature changes suddenly, the 
values output by this device could become unstable, 
making accurate measurement impossible.
(This could occur, for example, in a location blown by 
warm or cold air.)

 

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Conduct load calibrations periodically.

Installation procedures

 

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Tighten with the torque shown in the table below to prevent 
the load button from becoming loose. When removing 
an attached load button, be sure not to apply torque 
that exceeds the tightening torque shown in the table.

Rated capacity Tightening torque

Load button 

screw dimension

500 N – 3 kN

13 N·m

M8

5 kN – 10 kN

6 N·m

M6

A thread-locking fluid can be used on the screw, but be 
aware that this could prevent removal of the load button.

 

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Install this unit in a place where the structure is level 
and can sufficiently bear the load being used.

 

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Screw holes for attachment are located in four places.

 

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The screw hole dimensions are shown in the table below.

Model

Screw hole 

dimensions

Tightening 

torque

TC-LPR(T)-G6

M4 (depth 4)

3.5 N·m

Use class 12.9 strength screws.

ATTENTION

When using TC-LPR(T)500N-G6 – TC-LPR(T)3KN-G6

As shown in the illustration below, there is a 0.5mm level 
change between the outer circumference and the central 
screw portion of the load cell attachment surface.
For this reason, be aware that if the attachment surface is 
uneven, rough, dusty or dirty, for example, and it contacts 
the bottom of the unit, inaccurate measurement results 
could occur at loads lower than the rated capacity.

0.5

Dimensions in millimeters (mm)

When using TC-LPR(T)5KN-G6 – TC-LPR(T)10KN-G6

As shown in the illustration below, there is a 1mm level 
change between the outer circumference and the central 
screw portion of the load cell attachment surface.
For this reason, be aware that if the attachment surface is 
uneven, rough, dusty or dirty, for example, and it contacts 
the bottom of the unit, inaccurate measurement results 
could occur at loads lower than the rated capacity.

Dimensions in millimeters (mm)

(1)

Installation 

surface

Do not use the central 

indentation as an 

installation surface.

Precautions when placing loads on the 

unit

 

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Make sure the load is perpendicular to the surface to 
which this unit is attached.

 

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Apply the load so that it is centered on the center of 
the unit. If the load is not centered (eccentric load), 
twisting, for example, and measurement errors could 
occur. This could even result in damage.

F1

F2

F

F is the correct load orientation
F1 is an eccentric inclined load
F2 is an eccentric load

 

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Be careful to avoid turning and twisting from lateral 
loads. This could cause troubles like those described 
in the previous item.

 

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Be careful to avoid applying loads that exceed the 
rated capacity. In particular, use caution when there are 
vibrations because loads that exceed the rated capacity 
could occur due to sympathetic vibrations, for example.

 

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If the load receiving area is contacted by something that 
is at a different temperature and the load is increased, 
the values output by this device could become unstable, 
making accurate measurement impossible.
In such a case, wait until the temperature difference 
ceases to exist before measuring.

Electrical connection of load cell with 

built-in TEDS

 

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Connect as shown in the illustration below. Incorrect 
connections could result in inability to balance and 
in errors occurring in the output voltage when loads 
are applied.

Using a cable with bare lead wires

Red 

Input (+)

Black 

Output (−)

Blue 

Input (−)

White  Output (+)

Orange  TEDS signal (+)

Green  TEDS signal (COM)

Yellow Shield

TEDS

 

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This unit has a built-in TEDS function.
The orange and green cores in the cable and the F and 
G pins in the connector are wired for TEDS.

 

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This unit does not support remote sensing.
Since products that support remote sensing use the 
same cables and connector pins as TEDS, be careful not 
to try mistakenly to use these pins for remote sensing.
See the operation manuals of indicators and strain 
amps that support remote sensing for how to connect 
sensors with those units.

 

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The shield is not connected to the main body of this 
product. For this reason, if grounding is necessary because 
of external noise, for example, arrange to ground the 
shield to a part other than the body of this unit.

 

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Since the cable is directly connected to this unit, use 
a specialized cable to increase the length. (Please 
consult with us.)

 

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When conducting insulation resistance tests, limit them 
to the red, black, blue and white cores. Do not apply to 
the TEDS cores (orange and green).

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