HIOKI U8554 User manual

Dec. 2021 Revised edition 2
U8550A960-02 21-12H

Plug-In Modules Dedicated to

LR8450 (-01) Memory HiLogger

Instruction Manual

EN

Model names

NO

NO

Six di󰀨erent types of built-in modules are available for the
LR8450 (-01).

U8550 Voltage/Temp Unit

U8551 Universal Unit

U8552 Voltage/Temp Unit
U8553 High Speed Voltage Unit
U8554 Strain Unit
U8555 CAN Unit

Introduction

Thank you for choosing the U8550/U8551/U8552/U8553/
U8554/U8555, built-in modules dedicated to Hioki LR8450/
LR8450-01 Memory HiLogger, The built-in modules can be
connected to the LR8450/LR8450-01. For information, such
as operating precautions and safety, see LR8450 Quick Start
Manual.

Connect the built-in module to the instrument (LR8450/
LR8450-01).
You can connect up to four modules to one LR8450 (-01).

Latest instruction manual

The contents of this manual are subject to
change, for example as a result of product
improvements or changes to specifications.
The latest edition can be downloaded from t/

Safety notations

This manual classies seriousness of risks and hazard levels
as described below.

Indicates a potentially hazardous situation

WARNING

IMPORTANT

that, if not avoided, could result in death of
or serious injury to the operator.

Indicates information or content that is
particularly important from the standpoint of
operating or maintaining the device.

You will need: A Phillip’s head screwdriver (No. 2)

Package Contents

U8550 Voltage/Temp Unit



U8551 Universal Unit

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

U8552 Voltage/Temp Unit
U8553 High Speed Voltage Unit
U8554 Strain Unit

U8555 CAN Unit ………………………… any one of them

Screw M3×35 mm (spare) ………………………………… 2



Connection conrmation label (U8554 only) …………… 1



Instruction Manual (this manual) ………………………… 1



Connecting the Module to the

NOOKNO

Instrument

If installing multiple plug-in modules on the LR8450 (-01), do
so in the order indicated in the diagram below.
Do not remove the connector covers for any plug-in module
slots not in use.

Connect the built-in module to the instrument (LR8450/
LR8450-01).
You can connect up to four modules to one LR8450 (-01).

WARNING

Turn o󰀨 the instrument and disconnect any



cables before connecting or removing any plug­in modules.

When not using a plug-in module slot, secure the



connector cover over the instrument’s module
connector with the screws.

Failure to do so could cause electric shock or damage
the plug-in module and the LR8450 (-01).

You will need: A Phillip’s head screwdriver (No. 2)

Turn o󰀨 the LR8450 (-01) and disconnect the AC

1

Adapter.

Remove the two screws from the connector cover

2

of the LR8450 (-01).

When connecting 1 plug-in module When connecting 3 plug-in

modules

OK

Connect the module to slot

Connecting plug-in units as shown below will cause an error
to be displayed on the screen.

When connecting 2 or more
plug-in modules on one side

or .

Connect the modules to slots

or slots , , and .

and

When connecting 5 or more

plug-in modules

, ,

Remove the connector cover.

3

Store the connector cover removed from the LR8450
(-01) for future use.

2

3

Connect the plug-in module to the connector on the

4

LR8450 (-01).

NO

IMPORTANT

Plug-in modules ship with two spare screws
(M3 × 35 mm).

5

Exercise care not to lose them.

Insert and tighten the two screws removed in step 2.

5

4

NO

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com