Showa 5683 User manual

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 MANUAL VER.No.1.01
ACBRIDGESYSTEMDYNAMICSTRAINAMPLIFIRE
MODELS５６８３/５６８４ 
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ＯＰＥＲＡＴＩＯＮ ＭＡＮＵＡＬ

１
INTRODUCTION
▲Before Using▼
We would like to express our thanks to you for your purchase of our product strain amplifiers
Models 5683/5684.Please read this manual carefully before operating this instrument.
This manual provides the information necessary to operate the instrument safely. This
manual covers basic functions and operations of Models 5683/5684amplifiers and
handling precautions. Place this manual within reach of Models 5683/5684amplifiers. If
you encounter any problems in the manuals, please contact our sales representative.
▲Examining Contents in Package▼
If opening the package in a warm room during the cold season, open the package after it has
reached room temperature to avoid any operational failure due to condensation on the
surface of the product.
The warranty does not apply for the case where damages or faults caused by use against
instructions, warnings, or cautions.
This instrument is delivered after a thorough examination at the factory prior to shipment.
However, please examine the product's condition and verify that no obvious shipping
damage has occurred after opening the package. Also, examine the specifications of the
input units and accessories. If there are any missing or damaged items, please contact our
sales representative.
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▲Cautions▼
•The contents of this manual are subject to change without notice.
•This manual is copyrighted with all rights reserved. No parts of this manual may be
transcribed or reproduced without written permission.
•Please let us know if there are any points that are unclear or missing in this manual.
•We do not assume any responsibility for the outcome of the use of Models 5683/5684
amplifiers.

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PRECAUTIONS
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To avoid accidents, read this manual carefully before use. Observe the following warning
and cautions when using amplifiers. The warranty does not apply any damage caused
by the use against instructions, warnings, and cautions. To safely use the amplifiers, the
following statements are used in this manual to call the readers' attention.
This indicates a condition or practice that could result in personal injury or loss of life, or may
result in light injury or physical damage if this equipment is misused due to neglect of a
Warning
This indicates a condition or practice that could result in light injury or damage to the
equipment or other property if this equipment is misused due to neglect of a Caution.
In order to avoid electrical shock or burning, confirm that no common mode voltage or
signal is applied to the signal wire when the signal wire is connected
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W
ARNING
CAUTION

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•Power Supply
Make sure that the power supply is within the rating. If any voltage exceeding the rated voltage
were supplied, there would be risk of damage to this amplifier, or even a fire. Also, in order to
prevent electric shock and hazards such as a fire, be sure to use only the AC power cable and the
adapter (3-prong/2-prong converter) supplied with this amplifier.
•Protective Grounding
Be sure to ground this amplifier before supplying power. Grounding is necessary to use this
amplifier safely, as well as to protect the user and peripheral equipment from injury or damage.
Be sure to observe the following instructions:
1) Protective grounding
This product uses a 3-pole power cable, which has grounding. Always connect to the power
outlet having grounding. If using 3-prong/2-prong adapter, secure the grounding by connecting
either a protective terminal or a grounding lead extending from the adapter.
2) Caution on protective function
While the power is supplied to the amplifier, do not cut or remove the protective grounding line.
Otherwise, safety of the amplifier is not guaranteed.
3) Protective function failure
Avoid using this product when there is a failure in protective grounding or protective functions.
Confirm that there is no failure in the protective function before using.
•Use in Gaseous Atmosphere
Never use this amplifier in a flammable or explosive atmosphere, or atmosphere of steam. Use
in such atmosphere will result in danger to users and the amplifier.
•Disassembling the Frame
It is dangerous to remove the frame. Do not remove the frame from the amplifier other than
100VAC/200VAC switching using the selection switch.
•Input Signal Connection
Connect the signal wire to the input terminal after connecting protective grounding terminal to
the ground. When connecting the signal wire, check whether the signal wire is being properly
protected from leak signals from the environment or common-mode voltage in order to avoid
electrical shock or burning.
•Cautions during Operation
Be careful of operations because large voltage might be applied between the input terminal (input
signal wire) and ground of this amplifier or input terminal and output terminal (output signal wire).
•Installation Category and Contamination Level
Models 5683/5684 amplifiers are devices with Installation Category II and Contamination
Level II. Use them following the regulations defined in Installation Category II and
Contamination Level II.
W
ARNING

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•Caution in Handling
When using this amplifier, always follow the precautions below.
1) Users
Users who are not familiar with the operation of this recorder should avoid using it.
2) Use and storage environment
The storage temperature and humidity of the input units is –20 to 70°C and 10 to 90%,
respectively. Avoid storing in places where the temperature could rise over the storage
temperature and where there is direct sunlight exposure such as inside an automobile.
Do not use this recorder at the following locations.
1. Locations where the temperature and humidity rise due to direct sunlight or heaters. (The
operating environment of the amplifier; temperature: -10 to 50 °C, humidity: 20 to 85%)
2. Wet locations
3. Locations where salt, oil, or corrosive gases exist
4. Damp or dusty locations
5. Locations subject to strong vibrations
3) Cautions on power supply
1. Be careful of power voltage fluctuations. Do not use the amplifier when these are likely to
exceed the rated voltage.
2. If the power supply includes a lot of noise or high-voltage inductive noise, use noise filters
to avoid operation errors.
4) Calibration
We recommend a periodical calibration to maintain the accuracy. More reliable
measurements are possible by calibrating the amplifier once a year (extra cost option).
CAUTION

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CAUTIONINHANDLING
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Read this manual carefully before using the amplifier.
1. Do not apply neither voltage nor current to the output terminal of this amplifier from external
source.
2. Use this amplifier with power supply voltages from 85 VAC to 132 VAC, 180 VAC to 264 VAC,
or 10 VDC to 30 VDC. The AC power supply selection switch is provided inside the chassis. To
switch the AC power supply voltage, refer to page 7-4. If the power fuse is burnt, check the
cause of fuse blow-out. To replace the fuse, always disconnect the power plug and input/output
signal cable first, and then replace the fuse in the fuse holder. For how to replace fuse, see
page 7-3. When replacing, examine the ratings of fuse (e.g. for AC or DC).
3. The operation temperature and humidity of the input units is –10 to 50°C and 20 to 85%,
respectively. If opening the package in a warm room during the cold season, open the
package after it has reached room temperature to avoid any operational failure due to
condensation on the surface of the product.
Do not use this instrument at the following locations.
- High-humidity locations
- Locations with direct sunlight exposure
- In the vicinity of high-temperature heat source
- Location with vibrations
- Locations where salt, water, oil, or corrosive gases exist
４. When using many amplifier units, install fan units.
5. When a case is used to accommodate amplifiers, the case must be grounded.
6. This product uses a flash memory for saving setup values. Replacement of battery is not
needed accordingly.
7. As Models 5683/5684 have AC signal bridge voltage. Amplifier unit whose bridge voltage
frequency differs cannot be used in the same case. In addition, when using several units
closely, always make synchronization. Otherwise, noises may be generated. See 3-8 and 3-9
for details.
8.This amplifier unit uses rotary encoders are used for knobs to control functions. However,
indication position of the knob sometimes stays at the position between scale markings. In such
case, the settings upon power-up may differ from those upon turning off the amplifier. To avoid
such event, it is recommended to allow knob indication to be at the correct scale marking
position.

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WARRANTY
We ship our products after conducting quality control, which covers from design to manufacturing. It is,
however, possible that failures may occur in the products. If the product does not operate correctly,
please make a check of the power supply, cable connections, or other conditions before returning this
product to us. For repair or calibration, contact our sales representative. Before returning, be sure to
inform us of the model, serial number, and problematic points. The following is our warranty.
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LIMITEDWARRANTY
1. Warranty period
Two years from our shipment.
2. Warranty limit
We will repair the defects of our product free of charge within the warranty period; however, this
warranty does not apply in the following cases.
(1) Damage or faults caused by incorrect use.
(2) Damage or faults caused by fire, earthquake, traffic accident, or other natural disasters.
(3) Damage or faults caused by a repair or modification that is carried out by someone other than a
service representative of SHOWA MEASURING INSTRUMENTS.
(4) Damage or faults caused by use or storage in environmental conditions that should be avoided.
(5) Periodical calibration.
(6) Damage or faults caused during transportation.
3. Liability
We do not assume any liabilities for equipment other than SHOWA MEASURING INSTRUMENTS.
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TABLEOFCONTENTS
INTRODUCTION
Before Using ·········································································································· 1
Examining Contents in Package ············································································ 1
Cautions ················································································································· 1
PRECAUTIONS
PRECAUTIONS········································································································ 2
Warning ··················································································································· 3
Caution ··················································································································· 4
CAUTIONS IN HANDLING
Cautions In Handling································································································ 5
WARRANTY
Warranty ················································································································· 6
Limited Warranty ···································································································· 6
TABLE OF CONTENTS ·······························································································7 to 9
1.OVERVIEW
1.1 Features ··········································································································· 1-1
1.2 Amplifier Unit and Case ··················································································· 1-1 to 1-2
1.3 Accessories ······································································································ 1-2
1.4 Block Diagram of Measurement ······································································· 1-2
1.5 Features of Dynamic Strain Amplifiers ····························································· 1-3
2. NAMES AND FUNCTIONS OF PARTS
2.1 Names and Functions of Parts on Front Panel ················································ 2-1 to 2-4
2.2 How to Set Calibration Value (CAL) ······························································· 2-5
2.3 Indication upon Balancing ················································································ 2-6
2.4 Names and Functions of Parts on Rear Panel ················································· 2-7 to 2-8
3. BEFORE MEASURING
3.1 Cable Connections ···························································································· 3-1
3.1.1 Input Cable Connections············································································ 3-1
3.1.2 Connections of Power Supply Cable and Output Cable ····························· 3-2
3.2 Operation before Measuring ··············································································· 3-2
3.2.1 Standalone Operation ··············································································· 3-2 to 3-3
3.2.2 Measurement Range ··············································································· 3-4

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3.3 Bridge Check Function ······················································································· 3-5
3.3.1 Overview ································································································· 3-5
3.3.2 Error Indication List upon Cable Disconnection and Short ························· 3-6
3.4 Cable Length Compensation Function ································································ 3-7
3.5 How to Switch Special Function Setting ······························································ 3-8
3.6 Case ················································································································· 3-9
3.6.1 Names of Case Elements ········································································· 3-9
3.6.2 How to Use Case ····················································································· 3-9 to 3-12
3.6.3 Heat Release for Case ············································································· 3-12 to 3-13
4. MEASUREMENT
4.1 Cautions before Measuring ················································································ 4-1 to 4-2
4.2 Input Connection ································································································ 4-2
4.2.1 Examples of Strain Gauge Bridge Configurations ······································ 4-2 to 4-4
4.2.2 Bridge Box ······························································································· 4-5 to 4-6
4.2.3 Measurement with Transducer ·································································· 4-7
4.3 Connection of Output to Load ············································································· 4-8
4.3.1 Connection of Output to Data Recorder ···················································· 4-8 to 4-9
4.4 How to Read Measured Values ·········································································· 4-9 to 4-10
4.4.1 Correction of Calibration (CAL) Values ······················································ 4-10 to 4-11
4.5 Special Applications ··························································································· 4-12
4.5.1 Slip Ring ·································································································· 4-12
4.5.2 Differential Transformer ············································································ 4-12
5. OPERATION THEORY
5.1 Flow of Measured Signal ·················································································· 5-1
6. OPTIONAL FUNCTIONS
6.1 Current Output (56-201 4 to 20 mA output unit) ··············································· 6-1
6.2 Case Function and Type ·················································································· 6-1
6-2-1 Accommodating amplifier units ·································································· 6-2
6-2-2 How to Mount Blank Panels ······································································ 6-2
6-2-3 Connecting Ground Wire ··········································································· 6-2
6-2-4 Cautions on Rack-mount Case ································································· 6-2
7. MAINTENANCE
7.1 Items to Be Checked ························································································ 7-1 to 7-2
7.2 How to Replace Fuse ······················································································· 7-3
7.3 Changing AC Power Supply Voltage ································································ 7-4
8.SPECIFICATIONS
8.SPECIFICATIONS ······························································································ 8-1 to 8-2

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9. REFERENCES
9.1 Frequency Characteristics and Phase Property ·················································· 9-1 to 9-2
9.2 Cable List ········································································································· 9-3 to 9-4
9.3 Dimensional outline drowing·············································································· 9-5
9.3.1 Unit ········································································································· 9-5
9.3.2 Panel cut sizes························································································· 9-6
9.3.3 Bench-top Case ······················································································ 9-7
9.3.4 Rack-mounting Case ·············································································· 9-8
9.3.5 Fan Unit ·································································································· 9-9
9.3.6 Bridge Box (5370 and 5373) ·································································· 9-10
9.3.7 Compact Bridge Box (5379 and 5380) ··················································· 9-11