Hioki 3455 Instruction Manual
HIGH VOLTAGE
INSTRUCTION MANUAL
3455
INSULATION HiTESTER
www. .com
information@itm.com1.800.561.8187
1
2
3
4
5
6
7
8
9
10
11
付録
索引
i
Contents
Introduction ...................................................... 1
Verifying Package Contents / Open the case ..1
Safety Infor ma tion ............ .. ........................... .. 5
Operating Precautions .....................................8
1 Overview 13
1.1 Product Overview .................................13
1.2 Features .............. ............. .............. ......15
1.3 Measure me nt Overview ......... .. ............17
1.4 Names and Functions of Parts .............24
1.5 Screen Setup .......................................28
2 Measurement Preparations 31
2.1 Supplying Power ..................................31
2.1.1 Installing or Replacing the Battery ......31
2.1.2 Installing the Battery Pack
(Rechargeable nickel-hydrogen battery) 34
2.1.3 Connecting the AC Adapter ................39
2.1.4 Charging the Battery Pack .................41
2.2 Turning Power On and Off ...................44
2.2.1 Auto Power Off ...................................45
2.3 Setting and Checking Date and Time ..46
2.3.1 Setting Date and Time ........................46
2.3.2 Checking Date and Time ....................49
2.4 Connecting Test Lead ..........................50
2.5 Connecting Temperature Sensor .........52
www. .com
information@itm.com1.800.561.8187
ii
3 Measurement 53
3.1 Pre-Operation Inspection .....................53
3.2 Measuring Insulation Resistance .........56
3.2.1 Starting Measurement .........................58
3.2.2 Ending Measurement ..........................64
3.2.3 Checking and Deleting Held Data .......66
3.2.4 Automatic Discharge Function ............67
3.2.5 Switching to Leakage Current Indication 68
3.2.6 Insulation Resistance Measurement
Basis ...................................................69
3.2.7 Use of GUARD Terminal .....................71
3.3 Measuring Voltage ...............................73
3.4 Measuring Temperature .......................76
3.4.1 Measurement Procedure ....................76
4 Advanced Measurement 79
4.1 Using Time r .... .............. .............. ..........79
4.1.1 Setting Timer/Conducting Insulation
Resistance Measurement ...................79
4.2 Displaying PI and DAR .........................83
4.3 Temperature Correctio n ( T C ) ... ............87
4.3.1 Performing Temperature Correction ...88
4.3.2 Exiting Temperature Correction Mode 92
4.4 Step Voltage Test .................................93
4.4.1 Setting and Conducting a Step Voltage
Test .....................................................94
4.4.2 Viewing Detai led Da ta o f Each Ste p af ter
Step Voltage Test .......................... .....97
4.4.3 Exiting Step Voltage Test Mode ..........99
www. .com
information@itm.com1.800.561.8187
1
2
3
4
5
6
7
8
9
10
11
付録
索引
iii
5 Recording Measurement Data
(Memory Function) 101
5.1 Recording Measurement Data ...........103
5.1.1 Manual Recording (Recording result
of one measurement session) ..........103
5.1.2 Logging Recording (Recording at
regular intervals) ...............................106
5.2 Checking Recorded Data ...................115
5.3 Deleting Recorded Data .....................120
5.3.1 Deleting Data of Chosen No. ............120
5.3.2 Deleting all Data ...............................121
6 Other Functions 123
6.1 Changing and Checking Interval Setting
for PI Calculation ................................123
6.1.1 Changing Interval Setting .................123
6.1.2 Checking Interval Setting .................125
6.2 Changing and Check i ng Vol tag e
Application Time for Step Voltage Test .126
6.2.1 Changing Time Setting ..................... 126
6.2.2 Checking Time Setting .....................128
6.3 Entering Temperature and Humidity
Measured with External Thermometer
and Hygrometer .................................129
6.3.1 Entering and Saving .........................130
6.3.2 Clearing Indications of Temperature
and Humidity Stored Data ................133
6.4 Communicating with PC ..................... 134
6.4.1 Installing Data Analysis Software for
3455 .................................................135
6.4.2 Installing Driver .................................136
6.4.3 Downloading Data to Save to PC/
Setting up Tester on PC ...................145
www. .com
information@itm.com1.800.561.8187
iv
7 Specifications 147
7.1 General Specifications .......................147
7.2 Measurement Specifications .............. 152
7.2.1 Insulation Resistance Measurement .152
7.2.2 Leakage Current Measurement ........155
7.2.3 Voltage Measurement .......................156
7.2.4 Temperature Measurement ..............157
8 Maintenance and Service 159
8.1 Troubleshooting .................................160
8.2 Cleaning ............................................. 162
8.3 Error Display ......................................162
8.4 Performing System Reset ..................165
8.5 Discarding the Instrument ..................166
Appendix 169
Appendix 1 Test Voltage Characteristic
Graph ......................................169
Appendix 2 Example of Insulation Resistance
Criteria ..................................... 170
Appendix 3 Example of PI Criteria
(Polarization Index) ................. 170
Appendix 4 Temperature Correction Table 171
www. .com
information@itm.com1.800.561.8187
Introduction
1
2
3
4
5
6
7
8
9
10
11
付録
索引
1
Introduction
Thank you for purchas i ng the HIOKI “Model
3455 HIGH VOLTAGE INSULATION HiTESTER” To obtain maximum performance
from the instrument, please read this manual first, and keep it handy for future reference.
• Windows and Internet Explorer are registered trademark of Microsoft Corp oration in
the United States and/or other countries.
• Adobe and Adobe Reader are registered
trademark of Adobe Systems Incorporated.
V erifying Package Contents / Open
the case
When you receive the instrument, inspect it
carefully to ensure that no damage
occurred during shipping. In particular,
check the accessories, panel switches, and
connectors. If da mage is evide nt, or if it f ails
to operate according to the specifications,
contact your dealer or Hioki representative.
Open the case by releasi ng the two latc hes.
(See next page.)
Registered trade mark
Open the case
Appearance of Case
Cover
Latches
Handle
www. .com
information@itm.com1.800.561.8187
Verifying Package Contents / Open the case
2
Procedure
1. Draw the latch outwards with your fin-
ger.
2. While raising the entir e latch, place a
finger on the top of th e latch and pull
it out.
www. .com
information@itm.com1.800.561.8187
Verifying Package Contents / Open the case
1
2
3
4
5
6
7
8
9
10
11
付録
索引
3
Main Unit
Accessories
3455 HIGH VOLTAGE INSULATION HiTESTER 1
9750-01,-02,-03 TEST LEAD (Red, Black, Blue)
Lead length Approx. 3 m 1 each
LR6 alkaline battery 6Instruction Manual
(This book) 1
USB Cable 1
9751-01,-02,-03 ALLIGATOR CLIP(Red, Black, Blue)
1 each
CD-R (Data Analysis
Software for 3455) 1
www. .com
information@itm.com1.800.561.8187
Verifying Package Contents / Open the case
4
Options
9750-11,-12,-13 TEST LEAD
(Red, Black, Blue Lead length Approx. 10 m)
The specifications for the 9750-11 and
9750-12 models differ from the standard
specifications in regards to temperature
characteristics.
❖See 7.2"Measurement Specifications" (page
152).
9631-01,-05 TEMPERATURE SENSOR
Used for temperature measurement.
9631-01: Lead length Approx. 1 m
9631-05: Lead length Approx. 6 cm
9459 BATTERY PACK
(Rechargeable nickel-hydrogen battery)
The 9753 AC ADAPTER is required for
charging.
9753 AC ADAPTER
Input : 100 to 240 VAC
Output: 12 VDC 3.33 A
www. .com
information@itm.com1.800.561.8187
Safety Information
1
2
3
4
5
6
7
8
9
10
11
付録
索引
5
Safety Information
Safety Symbols
This manual contains information and warnings essential for safe operation of the
instrument and for maintaining it in safe
operating conditi on. Before using it, be su re
to carefully read the following safety precautions.
The following symbols in this manual indicate the relative i mp or tance of cautions and
warnings.
This instruments designed to comply
with IEC 61010 Saf ety Standard s, an d 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 instrument. 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
instrument defects.
In the manual, the symbol indicates particularly important information that the user should read before using the
instrument.
The symbol printed on the instrument indicates that the
user should refer to a corresponding topic in the manual
(marked with the symbol) before using the relevant function.
Indicates that dangerous voltage may be present at this terminal.
Indicates a double-insulated device.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
www. .com
information@itm.com1.800.561.8187
Safety Information
6
Other Symbols
Accuracy
We define measurement tolerances in
terms of rdg. (re ading) and dgt. (dig it) values, with the following meanings:
Indicates that incorrect operation presents an extreme
hazard that could result in serious injury or death to the
user.
Indicates that incorrect operation presents a significant
hazard that could result in serious injury or death to the
user.
Indicates that incorrect operation presents a possibility
of injury to the user or damage to the instrument.
Indicates advisory items related to performance or correct operation of the
instrument.
Indicates a prohibited action.
❖
Indicates the location of reference information.
Indicates quick references for operation and
remedies for troublesh oo t i ng .
*
Indicates that descriptive information is provided
below.
dgt.
(resolution)
The smallest displayable unit on a digital measuring instrument, i.e., the input value that causes
the digital display to show a "1" as the least-significant digit.
rdg. (reading
or displayed
value)
The value currently being measured and indicated on the measuring instrument.
www. .com
information@itm.com1.800.561.8187
Safety Information
1
2
3
4
5
6
7
8
9
10
11
付録
索引
7
Measurement categories (Overvoltage categories)
This instrument complies with CAT IV (600
V), CAT III (1000 V) safety requirements.
To ensure safe operation of measurement
instruments, IEC 61010 establishes safety
standards for various electrical
environment s, categorized as CAT I t o CAT
IV, and called measurement categories.
These are defined as follows.
Higher-numbere d catego rie s cor res pond to
electrical envir onments with greater
momentary energy. So a measurement
device designed for CAT III environments
can endure greater momentary ene rgy than
a device desi gned for CAT II.
Using a measurement instrument in an
environment designated with a higher-numbered category than that for which the
instrument is rated could result in a severe
accident, and must be carefu l ly avoi de d.
Never use a CAT I measuri ng i nstrument in
CAT II, III, or IV environments.
The measurem ent categories comply with
the Overvoltage Categories of the
IEC60664 S tandards.
CAT I Secondary electrical circuits connected to an AC electri-
cal 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 in-
stallations) 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).
www. .com
information@itm.com1.800.561.8187
Operating Precautions
8
Operating Precautions
Follow these precautions to ensure safe
operation and to obtain the full benefits of
the various functions.
Before using the instrument 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.
Preliminary Checks
Before using the instrum ent, make sure
that the insulation on the test leads and
cables 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 9750-01,-02,-03 TEST LEAD,
Model 9751-01,-02,-03 ALLIGATOR CLIP)
www. .com
information@itm.com1.800.561.8187
Operating Precautions
1
2
3
4
5
6
7
8
9
10
11
付録
索引
9
• Operating t em pe rature and humidity:
0 to 40°C (32 to 104
°F
)
90%RH or less (no condensation)
• Temperature and humidity range for guaranteed accuracy:
Insulation resistance measurement / leakage current measurement
0 to 28°C (32 to 82
°F)
90%RH or less (no condensation)
Voltage measurement / temperature measurement
23±5°C (73± 9
°F)
90%RH or less (no condensation)
Placement
To avoid malfunctions and accidents, do not place the tester
where it will be exposed to any of the following:
•Direct
sunlight
•High
temperature
•Corrosive or
explosive gas
• Sprayed/
splashed
water
• High humidity
with
condensation
• Strong
electromagnetic fields
• Electrically
charged
objects
•Dust
• Mechanical
vibration
www. .com
information@itm.com1.800.561.8187
Operating Precautions
10
Observe the following to avoid electric
shock and short circuits.
• Before connecting or disconn ecting the
test leads to/from the tester, be sure to
disconnect the test leads from the
object under test and turn off power.
• Do not perform measurement with the
battery cover r emoved
• Do not use the shutter if it is broken.
• Do not rem ove the
case from the main
unit.
(High-voltage/high-temperature parts
are present wi thin)
• Do not use the tester in environments
containing ignitable gases, explosiv e
powders, etc.
(Risk of explosion)
• Do not place the tester on an unstable
or uneven surfac e.
(If the tester falls, electric shock or
tester malfunction may result)
• This tester handles high voltages. To
avoid electric shock, always wear
appropriate insulated protection, such
as rubber gloves, rubber b oots, as well
as a safety helme t, as specified in the
Ordinance on Industrial Safety and
Health.
• Before using the tester, inform those
around you of your intention to do s o.
Shutter
www. .com
information@itm.com1.800.561.8187
Operating Precautions
1
2
3
4
5
6
7
8
9
10
11
付録
索引
11
• This instrument is designed for use ind oor s.
It can be operated at temperatures
between 0 and 40° C (32 a nd 104
°F
) without
degrading sa fety.
• To avoid damage to the instrument, protect
it from physical shock when transporting
and handling. Be especially careful to avoid
physical shock from dropping.
• If the protective functions of the instrument
are damaged, either remove it from service
or mark it clearly so that others do not use it
inadvertently.
• Calibration and repair of this instrument
should be performed only under the supervision of qualified technicians knowledgeable about the dangers involved.
• Never modify the instrument. Only Hioki
service engineers should disassemble or
repair the instrument. Failure to observe
these precautions may result in fire, electric
shock, or injury.
• Place the cover on the tester when not in use.
• After use, always turn OFF the power.
• To avoid damage to the tester, do not connect
an external device to the USB terminal or the
temperature sensor terminal.
• Standby State
The use of "standby state" in this manual
means that measurement is not being
performed and that no parameters are
set. This includes the state in which
is on.
• If the tester is exposed to an abrupt large
variation in temperature, condensation
may occur, resulting in measurement
errors.
Leave the tester in a new environment for
a while before starting measurement.
www. .com
information@itm.com1.800.561.8187
Operating Precautions
12
1 TΩ (Tera ohm) =1000 GΩ =1012 Ω
1 GΩ (Giga ohm) =1000 MΩ =10
9
Ω
1 MΩ(Mega ohm) = 1000 kΩ =10
6
Ω
1 mA (Milliampere) =0.001 A =10
-3
A
1 μA (Micro ampere) =0.001 mA =10
-6
A
1 nA (Nano ampere) =0.001 μA=10
-9
A
Electrical Units
Care and Handling of CD-R
• Alw ays hold the disc by the edges, s o as not
to make fingerprints on the disc or scratch the
printing.
• Never touch the recorded side of the disc. Do
not place the disc directly on anything hard.
• Do not wet the disc with volatile alcohol o r
water, as there is a possibility of the label
printing disappearing.
• To write on the disc label surface, use a spiritbased felt pen. Do not use a ball-point pen or
hard-tipped pen, because there is a danger of
scratching the surface and corrupting the
data. Do not use adhesive labels.
• Do n ot expose the disc directly to the sun's
rays, or keep it in condition s of high temperature or humidity, as there is a danger of warping, with consequent loss of data.
• To remove dirt, dust, or fingerprints from the
disc, wipe with a dry cloth, or use a CD
cleaner. Always wipe radially from the inside
to the outside, and do no wipe with circula r
movements. Never use abrasi ves or solvent
cleaners.
• Hioki shall not be held liable for any problems
with a computer sy stem that arises f rom the
use of this CD-R, or for any proble m related
to the purchase of a Hioki product.
www. .com
information@itm.com1.800.561.8187
1.1 Product Overview
1
2
3
4
5
6
7
8
9
10
11
付録
索引
13
The 3455 is an insulation resistance tester
with a wide measurement range, for use in
such environments involving low to high
voltage.
The tester has the functions and purposes
given below.
Overview 1
1.1 Product Overview
Function Purpose
Reference
page
(Basic)
Insulation
resistance
measurement
To test the insulation resistance of
an electrical facility.
❖3.2 (P.56)
Voltage
measurement
To measure the voltage of an external circuit, e.g., commercial power
supply.
❖3.3 (P.73)
Temperature
measurement
To measure a temperature ❖3.4 (P.76)
(Applied)
Timer To automatically end measurement
after a predetermined time.
❖4.1 (P.79)
Display
PI and DAR
values
To check whether the insulation resistance increases with time after a
voltage is applied.
[When the PI (polarization index)
value or the DAR (dielectric absorption ratio) value is close to 1, the
tester determines that the insulation of the object to be measured
has deteriorated.]
❖4.2 (P.83)
Temperature
correction
(TC)
To obtain the insulation resistance
at various temperatures varied from
the actual environmental temperature at which measurement is performed.
❖4.3 (P.87)
www. .com
information@itm.com1.800.561.8187
1.1 Product Overview
14
Step voltage
test
To determine whether the insulation resistance of an object changes according to test voltage
applied.
❖4.4 (P.93)
Memory
To save the measurement data.
❖5 (P.101)
PC
Communication
To create tables or graphs of the
data saved in the memory for reports, etc.
❖6.4 (P. 134)
Function Purpose
Reference
page
www. .com
information@itm.com1.800.561.8187
1.2 Features
1
2
3
4
5
6
7
8
9
10
11
付録
索引
15
Generates a wide range of test voltages, from
250 V to 5 kV
The voltage may be chosen from the commonly used presets of 250 V, 500 V, 1 kV, 2.5
kV, and 5 kV; or set to a desired level by
increments or decrements of 25 V or 100 V.
❖3.2 "Measuring Insulation Resistance" (page 56)
For automatic ca lculation and indic ation of
PI (polarization index) and DAR (dielectric
absorption ratio), step voltage testing, and
temperature correction.
❖4 "Advanced Measurement" (page 79)
Stores up to 100 manual records and 10
logging records. The stored data may be
displayed on the LCD or downloaded to a
PC.
❖5 "Recording Measurement Data (Memory Func-
tion)" (page 101)
6.4 "Communicating with PC" (page 134)
The large display provides easy viewing.
Measurements may also be displayed
using a logari thmic bar graph, offeri ng the
feel of an analog meter.
The LCD is backlit, enabling measurement
in poor lighting condi t i on s .
The tester has a USB interface. Data stored
in the memory may be downloaded to PC
using the data download softwar e.
The same softw are also en ables re ports to
be created and printed with ease.
❖6.4 "Communicating with PC" (page 134)
1.2 Features
Wide test voltage range
Insulation diagnoses
Large memory
Large, clear display
PC software with report creation/
printing feature
www. .com
information@itm.com1.800.561.8187
1.2 Features
16
The case is durable-designed to withstand
the toughest of working conditions, compact, and highly portable.
The tester may be powered by either alkaline or rechargeabl e ni ckel -hydro gen ba tter ies. (Selectable via switch)
❖2.1.1 "Installing or Replacing the Battery" (page
31)
2.1.2 "Installing the Battery Pack (Rechargeable
nickel-hydrogen battery)" (page 34)
Compact hard case
Dual battery power supply
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
1
2
3
4
5
6
7
8
9
10
11
付録
索引
17
This tester is designed for measurement of
the following:
Measurement condition
When measuring insulation resistance,
ensure that power supply to the object
under test is turned off.
Performing Measurement
• 3455 HIGH VOLTAGE INSULATION HiTESTER
• LR6 alkaline battery, or
9459 BATTERY PACK
• 9750-01,-02,-03 TEST LEAD
• 9751-01,-02,-03 ALLIGATOR CLIP
• 9631-01,-05 TEMPERATURE SENSOR
(for temperature measurement)
1.3 Measurement Overview
Purpose : Inspection of high-voltage electrical
facilities
Location : High-voltage receiving station or trans-
forming station
Test object : Large motors, transformers, cables,
etc.
• Measures insulation resistance, voltage and temperature.
• Stores measurement data in the internal memory.
• Downloads data to a PC for table, graph, or report
creation.
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
18
Flow of measurement
Before startin g mea surem ent, che ck th e f ollowing:
• The power supply method.
• The power ON/OFF method.
• That date and time are set.
• Connection of test leads, temperature
sensor, and USB cable .
Insulation Resistance Measurement
→3.2 "Measuring Insulation Resistance" (page 56)
1 Prepare for measurement
→2 "Measurement Preparations" (page 31)
2 Start measurement.
1.
Make sure that powe r supply to the object under
test is turned off.
2.
Press the key to turn on
the tester.
❖2.2 (page 44)
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
1
2
3
4
5
6
7
8
9
10
11
付録
索引
19
3.
Connect the test leads into the
"+" and "-" terminals of the tester
and to the object to be tested.
❖2.4 (page 50)
3.2.1 (page 58)
4.
Press the key and set
the test voltage.
❖3.2.1 (page 58)
GUARD
terminal
Warning: Confirm that the power supply to the
object under test has been turned off.
Object to be measured (Ex.: Motor)
+ terminal
- termina
l
Test lead (Red)
Attach to a metal
chassis or a ground
terminal.
Test lead (Black)
Attach to a metal part
of the power supply
terminal.
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
20
5.
Press the key to generate a voltage and start measure-
ment.
❖3.2.1 (page 58)
6.
Read the indication.
❖3.2.1 (page 58)
7.
Press the key to stop
voltage generation and measure-
ment.
❖3.2.2 (page 64)
8.
The automatic discharge func tion
is activated.
❖3.2.4 (page 67)
9.
Measurement is terminated when
the voltage falls below 10 V.
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
1
2
3
4
5
6
7
8
9
10
11
付録
索引
21
Voltage Measurement
→ 3.3 "Measuring Voltage" (page 73)
1.
Connect the test leads into the "+" and "-" terminals of the tester and to the object to be tested.
2.
Read the indication.
+ terminal
- terminal
GUARD
terminal
Test lead (Red) Test lead (Black)
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
22
Temperature Measurement
→ 3.4 "Measuring Temperature" (page 76)
1.
Insert the temperature sensor into the temperature sensor terminal of the tester.
2.
Read the indication.
3.
Press the key to stop temperature measurement.
www. .com
information@itm.com1.800.561.8187
1.3 Measurement Overview
1
2
3
4
5
6
7
8
9
10
11
付録
索引
23
Insulation resistance and temperat ure measurement data are held after measu rement
is completed.
This data will be cleared if power is turned
off. To store the data, use the memory function.
3 Record measurement data
→5 "Recording Measurement Data (Memory Function)
"
www. .com
information@itm.com1.800.561.8187
1.4 Names and Functions of Parts
24
1.4 Names and Functions of Parts
Front
1. 2.
3.
LCD
Slide the shutter.
Operating panel
❖(page 26)
4.
567
www. .com
information@itm.com1.800.561.8187
1.4 Names and Functions of Parts
1
2
3
4
5
6
7
8
9
10
11
付録
索引
25
Name Function
1
AC adapter
terminal
Connect the AC adapter to this terminal.
❖2.1.3 "Connecting the AC Adapter" (page
39)
2 USB terminal
Connect the USB Cable to this terminal.
❖6.4.3 "Downloading Data to Save to PC/
Setting up Tester on PC" (page 145)
3
Temperature
sensor
terminal
Connect the temperature sensor to this terminal.
❖2.5 "Connecting Temperature Sensor"
(page 52)
4 Shutter
Prevents connection to other terminals when
test leads are connected to the measurement
terminals-a safety feature.
5
+measurement
terminal
*
Connect the red test lead to this terminal.
❖2.4 "Connecting Test Lead" (page 50)
6
-measurement
terminal
*
Connect the black test lead to this terminal.
❖2.4 "Connecting Test Lead" (page 50)
7
GUARD
terminal
Connect the blue test lead to this terminal.
❖3.2.7 "Use of GUARD Terminal" (page 71)
*These are referred to simply as + and - terminals.
Back
Battery cover
Set screw
Battery pack compartment
(Under the battery cover)
Battery selector switch
(Under the battery cover)
Selects the type of battery.
LR6 alkaline battery
compartment
(Under the battery cover)
www. .com
information@itm.com1.800.561.8187
Loading...