Hioki 3550 User manual

INSTRUCTION MANUAL
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3550
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BATTERY HiTESTER

Contents
Introduction i
Inspection i
Safety ii
Precautions v
Organization of this Manual viii
Chapter 1 Overview 1
Chapter 2 Names and Functions of Parts 3
Chapter 3 Specifications 9
3.1 General Specification 9
3.2 Measurement Range 13
3.2.1 Maximum Input Voltage 14
3.2.2 Floating Voltage 15
3.2.3 Dielectric Strength 15
Chapter 4 Standard Measurement 17
4.1 Preparing for Measurement 17
4.2 Measurement 19
Chapter 5 Advanced Measurement Functions 23
5.1 Comparator Function 23
5.1.1 What is the Comparator Function? 23
5.1.2 Comparator Settings 24
5.1.3 Comparator Decision Result Table 29
5.1.4 Switching the Comparator On and Off 30
5.1.5 Changing the Comparator Number 31

5.2 Measurement Value Memory Function 32
5.2.1 Memory 32
5.2.2 Clear 34
5.2.3 Readout 35
5.2.4 Printing 36
5.3 Beeper On/Off Function 38
5.4 Hold Function 38
5.5 Moving Average Function 39
5.6 Zero Adjust Function 41
5.7 Battery Low Warning 42
5.8 Auto Power Off 43
5.9 AC Four-Terminal Method 45
5.10 Internal Resistance of Lead-Acid Batteries 47
Chapter 6 Maintenance 49
6.1 Troubleshooting 49
6.2 Message Reference 51
6.3 Cleaning 51

i
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Inspection
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Introduction
Inspection
Thank you for purchasing the HIOKI "3550 BATTERY
HiTESTER." To obtain maximum performance from the
product, please read this manual first, and keep it handy for
future reference.
When you receive the product, inspect it carefully to ensure
that no damage occurred during shipping. In particular,
check the accessories, panel switches, and connectors. If
damage is evident, or if it fails to operate according to the
specifications, contact your dealer or Hioki representative.
Accessories
9460 CLIP TYPE LEAD WITH TEMPERATURE SENSOR
9382 CARRYING CASE
Six LR6 alkaline batteries
Instruction Manual
Dust cover (for the printer interface)
Shipping
Use the original packing materials when reshipping the
product, if possible.

ii
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Safety
___________________________________________________________________
DANGER This product is designed to conform to IEC 61010
Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling
during use could result in injury or death, as well as
damage to the product. Be certain that you
understand the instructions and precautions in the
manual before use. We disclaim any responsibility for
accidents or injuries not resulting directly from
product defects.
The symbol printed on the product indicates
that the user should refer to a corresponding
topic in the manual (marked with the symbol)
before using the relevant function.
In the manual, the symbol indicates
particularly important information that the user
should read before using the product.
Indicates DC (Direct Current).
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
Safet
y
Safety symbols
This manual contains information and warnings essential for
safe operation of the product and for maintaining it in safe
operating condition. Before using the product, be sure to
carefully read the following safety notes.

iii
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Safety
___________________________________________________________________
DANGER
Indicates that incorrect operation presents an
extreme hazard that could result in serious injury
or death to the user.
WARNING
Indicates that incorrect operation presents a
significant hazard that could result in serious
injury or death to the user.
CAUTION
Indicates that incorrect operation presents a
possibility of injury to the user or damage to the
product.
NOTE Advisory items related to performance or correct
operation of the product.
The following symbols in this manual indicate the relative
importance of cautions and warnings.

iv
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Safety
___________________________________________________________________
Measurement categories (Overvoltage categories)
This product conforms to the safety requirements for CAT I
measurement products.
To ensure safe operation of measurement products, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT I to CAT IV, and called measurement
categories. These are defined as follows.
CAT I : Secondary electrical circuits connected to an AC
electrical outlet through a transformer or similar device.
CAT II : Primary electrical circuits in equipment connected to an
AC electrical outlet by a power cord (portable tools,
household appliances, etc.)
CAT III : Primary electrical circuits of heavy equipment (fixed
installations) connected directly to the distribution panel,
and feeders from the distribution panel to outlets.
CAT IV: The circuit from the service drop to the service entrance,
and to the power meter and primary overcurrent
protection device (distribution panel).
Higher-numbered categories correspond to electrical environments
with greater momentary energy, so a measurement product
designed for CAT III environments can endure greater momentary
energy than one designed for CAT II. Using a measurement
product in an environment designated with a higher-numbered
category than that for which the product is rated could result in a
severe accident, and must be carefully avoided.
Never use a CAT I measuring product in CAT II, III, or IV
environments.
The measurement categories comply with the Overvoltage
Categories of the IEC60664 Standards.

v
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Precautions
___________________________________________________________________
DANGER The floating voltage between input terminals and
ground is 450V DC/AC. Attempting to measure
voltages exceeding 450V with respect to ground
could damage the product and result in personal
injury.
When voltages higher than 30 Vrms, 42.4 Vpeak or
battery circuits with more than 60 VDC are to be
measured, be sure to establish the floating state
first. Carrying out such measurements in the
grounded state involves the risk of electric shock.
When measuring batteries, always ensure sufficient
ventilation. Sometimes sparks may occur when the
test leads are connected to batteries, which can
ignite any accumulated inflammable gases such as
hydrogen.
To avoid electric shock accidents, when measuring
batteries being charged wear proper protective gear
such as rubber gloves.
WARNING
Do not allow the product to get wet, and do not take
measurements with wet hands. This may cause an
electric shock.
Do not use the product where it may be exposed to
corrosive or combustible gases. The product may be
damaged or cause an explosion.
Precautions
Follow these precautions to ensure safe operation and to
obtain the full benefits of the various functions.

vi
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Precautions
___________________________________________________________________
WARNING
Before using the product, make sure that the
insulation on the leads is undamaged and that no
bare conductors are improperly exposed. Using the
product in such conditions could cause an electric
shock, so contact your dealer or Hioki representative
for replacements. (Model 9460)
Be sure to connect the SOURCE and SENSE
terminals (banana plugs), and TEMP SENSOR
terminal (mini-plug) correctly. See Section 4.2,
"Measurement" for details of the connections.
To avoid injury or damage to the product, do not
attempt to measure AC voltage, or DC voltage
exceeding 50 V.
50 VDC max.
Do not apply a voltage between the SOURCE(+) and
SENSE(+) or SOURCE(-) and SENSE(-) terminals.
This could result in damage to the unit.
CAUTION This product is not designed to be entirely water- or
dust-proof. To avoid damage, do not use it in a wet or
dusty environment.

vii
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Precautions
___________________________________________________________________
CAUTION Do not store or use the product where it could be
exposed to direct sunlight, high temperature or
humidity, or condensation. Under such conditions, the
product may be damaged and insulation may
deteriorate so that it no longer meets specifications.
Do not use the product near a device that generates a
strong electromagnetic field or electrostatic charge, as
these may cause erroneous measurements.
NOTE Use the specified 9460 CLIP TYPE LEAD WITH
TEMPERATURESENSORwhenthistesterisused.
Correct measurement may be impossible in the presence of
strong magnetic fields, such as near transformers and high-
current conductors, or in the presence of strong
electromagnetic fields such as near radio transmitters.
Service
Before using the product the first time, verify that it
operates normally to ensure that the no damage occurred
during storage or shipping. If you find any damage,
contact your dealer or Hioki representative.
When sending the product for repair, remove the batteries
and pack carefully to prevent damage in transit. Include
cushioning material so the product cannot move within the
package. Be sure to include details of the problem. Hioki
cannot be responsible for damage that occurs during
shipment.

viii
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Organization of this Manual
___________________________________________________________________
Or
g
anization of this Manual
This manual consists of the following chapters.
"Introduction", "Inspection", "Safety", "Precautions" include
some important notes which you should read before using
the unit.
Chapter 1 Overview
describes an outline of the unit, and lists its features.
Chapter 2 Names and Functions of Parts
lists the names of the parts of the unit, and the functions of
all of the indications, terminals, and switches.
Chapter 3 Specifications
lists the specifications of the unit.
Chapter 4 Standard Measurement
describes the basic operation of the unit.
Chapter 5 Advanced Measurement Functions
describes miscellaneous functions.
Chapter 6 Maintenance
gives troubleshooting information.

1
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Chapter 1 Overview
___________________________________________________________________
NOTE
Chapter 1
Overview
The 3550 is designed for measuring the internal resistance,
open-circuit voltage, and terminal temperature of secondary
batteries, including lead-acid batteries, nickel-cadmium
batteries, nickel-metal hydride batteries, and lithium-ion
batteries.
Features
Since it uses the AC four-terminal method to measure the
internal resistance, it provides accurate results with the lead
resistances and contact resistances eliminated.
It is possible to display the readings for the battery internal
resistance, voltage, and terminal temperature, without
changing functions. Moreover, a composite comparator
function, which can be set on resistance and voltage values,
enables reliable detection of battery deterioration.
The unit's memory function also allows a number of sets of
readings to be stored at a touch, and later output to a
printer.
These functions make this an ideal tool for checking
batteries which are under constant trickle charging and
cannot be disconnected.
Measurements are taken by using noise reduction technology to
attenuate noise at frequencies other than the measurement
frequency (1 kHz). Incorrect measurements may result if a large
1-kHz noise component from the charger is present at the battery
terminals.

2
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Chapter 1 Overview
___________________________________________________________________

3
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Chapter 2 Names and Functions of Parts
___________________________________________________________________
Chapter 2
Names and Functions of
Parts
This chapter explains the keys, input and output terminals,
display, LED indicators, and leads.

4
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Chapter 2 Names and Functions of Parts
___________________________________________________________________
15
12
13
14
1 2 4 5 3 6 7 10 11 9
16
17
8
18 19 20
Front Panel
Side Panel

5
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Chapter 2 Names and Functions of Parts
___________________________________________________________________
Selects the resistance range.
Selects the voltage range.
●Keys and input/output terminals
1. POWER key Turns the power on or off.
2. 30m Ωkey
300m Ωkey
3Ωkey
3. 3Vkey
30 Vkey
4. 0ADJ key Zero adjustment key.
5. key Turns the beeper on and off.
6. HOLD key Locks out changes to the display.
7. key Left cursor (flashing) key.
8. COMP key Switches the comparator on and off, and
changes display to the comparator setting
screen.
9. key Right cursor (flashing) key.
10. UP key Increases the value of a numeric setting.
11. DOWN key Decreases the value of a numeric setting.
12. MEMO key Stores the display data in memory.
13. CLEAR key Clears data captured with the MEMO key.
14. READ key Reads data captured with the MEMO key.
15. PRINT key Prints data captured with the MEMO key.
16. SOURCE Connects to the 9460 banana plug on the
SOURCE side.
17. SENSE Connects to the 9460 banana plug on the
SENSE side.
18. TEMP SENSOR Connects to the 9460 mini-plug.
19. EXT.MEMO Connects to an external foot switch or
similar, and stores the displayed data in
memory.
20. PRINT Connects to the printer.

6
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Chapter 2 Names and Functions of Parts
___________________________________________________________________
1
2 3
●LCD (view with all elements displayed)
●Display
1. Measured resistance
2. Temperature measurement value [comparator resistance
lower limit setting]
3. Temperature measurement value [comparator resistance
lower limit setting]
mΩIndicates the unit of resistance.
V Indicates the unit of voltage.
Indicates the unit of temperature.
HOLD Appears when the display is locked.
COMP Appears when the comparator function is on.
Appears when the beeper is turned on.
DATA Indicates that data captured data with the
MEMO key is present.
No. Indicates the number of data points captured
with the MEMO key.
Usually, this is the number of the last data
point captured.
[The comparator table number.]
[]: Appears in on the comparator setting screen.

7
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Chapter 2 Names and Functions of Parts
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MEMO Flashes once when the MEMO key is
pressed.
Appears when the battery voltage of the
tester is low, to prompt the user to replace
the battery.
COMP.SET Appears during display of the comparator
setting screen.
OHM Appears during display of the screen for
setting the comparator resistance upper and
lower limit values.
VOLT Appears during display of the screen for
setting the comparator voltage threshold
value.
●LEDs
PASS Indicates that the tested battery is
satisfactory for operation.
WARNING Indicates that the tested battery is
beginning to deteriorate.
FAIL Indicates that the tested battery has
deteriorated.
These indications appear when the upper and lower
comparator limits for internal resistance and the
comparator threshold value for voltage are all set.

8
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Chapter 2 Names and Functions of Parts
___________________________________________________________________
SOURCE SENSE
Temperature
sensor
Clip (red)
Clip (black)
Banana plug (black)
Banana plug (red)
Mini-plug
(TEMP.SENSOR)
●9460 CLIP TYPE LEAD WITH TEMPERATURE SENSOR