Hioki 3403 User manual

INSTRUCTION MANUAL
3403, 3404
TACHO HiTESTER
Printed on recycled paper
HEAD OFFICE
81 Koizumi, Ueda, Nagano 386-1192, Japan
TEL [phone] / FAX [phone]
E-mail: [e-mail]/
URL http: //www.hioki.com/
HIOKI USA CORPORATION
6 Corporate Drive, Cranbury, NJ 08512, USA
TEL [phone] / FAX [phone]
3403A981-02 08-07H

HIOKI 3403, 3404 TACHO HiTESTER
Instruction Manual
Publication date: July 2008 Revised edition 2
Edited and published by HIOKI E.E. CORPORATION
Technical Sales Support Section
All inquiries to International Sales and Marketing
Department
81 Koizumi, Ueda, Nagano, 386-1192, Japan
TEL: [phone] / FAX: [phone]
E-mail: [e-mail]
URL http://www.hioki.com/
Printed in Japan 3403A981-02
･All reasonable care has been taken in the production of
this manual, but if you find any points which are
unclear or in error, please contact your supplier or the
International Sales and Marketing Department at HIOKI
headquarters.
･In the interests of product development, the contents of
this manual are subject to revision without prior notice.
･The content of this manual is protected by copyright.
No reproduction, duplication or modification of the
content is permitted without the authorization of Hioki
E.E. Corporation.

Contents
Introduction 1
Inspection 1
Safety Notes 2
Notes on Use 6
Chapter 1 Overview 9
1.1 Product Overview 9
1.2 Names and Functions of Parts 10
Chapter 2 Measurement Method 13
2.1 Measurement Preparations 13
2.2 Normal Measurement 15
2.3 MAX Hold Measurement (3404 only) 16
2.4 MIN Hold Measurement (3404 only) 17
2.5 TOTAL Measurement (3404 only) 18
2.6 PERIOD Measurement (3404 only) 20
2.7 FAST/SLOW Mode Measurement
(3404 only) 22
2.8 Data Hold 23
2.9 Buzzer Off Set 24
Chapter 3 Precautions 25
Chapter 4 Analog Output (3404 only) 27
Chapter 5 Measurement with 9213
CONTACT ADAPTER 31

Chapter 6 Specifications 33
Chapter 7 Maintenance and Service 39
7.1 Battery Replacement 39
7.2 Maintenance 40
7.3 Service 40

1
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____________________________________________
Introduction
Inspection
Thank you for purchasing the HIOKI
"Model 3403,3404 TACHO HiTESTER".
To obtain maximum performance from
the instrument, please read this manual
first, and keep it handy for future
reference.
When you receive the instrument,
inspect it carefully to ensure that no
damage occurred during shipping. If
damage is evident, or if it fails to operate
according to the specifications, contact
your dealer or Hioki representative.

2
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____________________________________________
DANGER
This instrument is designed to comply
with 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 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.
・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.
・In the manual, the symbol indicates
particularly important information that
the user should read before using the
instrument.
Safety Notes
This manual contains information and
warnings essential for safe operation of
the instrument and for maintaining it in
safe operating condition. Before using it,
be sure to carefully read the following
safety precautions.
Safety symbols

3
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____________________________________________
DANGER Indicates that incorrect operation
presents an extreme hazard that
could result in serious injury or death
to the user.
W
ARNING 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 instrument.
NOTE Advisory items related to
performance or correct operation of
the instrument.
The following symbols in this manual
indicate the relative importance of
cautions and warnings.
Overvoltage Categories
This instrument complies with CAT I
safety requirements.
To ensure safe operation of
measurement instruments, IEC 60664
establishes safety standards for various
electrical environments, categorized as
CAT I to CAT IV, and called overvoltage
categories. These are defined as follows.

4
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____________________________________________
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
device designed for CAT III environments
can endure greater momentary energy
than a device designed 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 carefully
avoided.

5
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____________________________________________
f.s. (maximum display value or scale length)
The maximum displayable value or scale
length. This is usually the name of the
currently selected range.
rdg. (reading or displayed value)
The value currently being measured and
indicated on the measuring instrument.
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 leastsignificant digit.
Accuracy
We define measurement tolerances in
terms of f.s. (full scale), rdg. (reading)
and dgt. (digit) values, with the following
meanings:

6
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DANGER
To avoid damage to the instruments and
potentially life-threatening hazards,
observe the following precautions:
Be careful when measuring with the
contact adapter because rotation and
vibration of the instrument can produce
erratic results with either high or low
rotation speeds. Hold the main body
firmly against the rotator. Do not place
the instrument on a tripod when making
measurements.
If the contact tip is not fully inserted over
the contact adapter shaft, it could fall off
the shaft by touching the rotator. Make
sure the contact tip is firmly inserted over
the adapter shaft before making
measurements.
Notes on Use
Follow these precautions to ensure safe
operation and to obtain the full benefits
of the various functions.

7
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____________________________________________
WARNING
To avoid damage to the instruments and
potentially life-threatening hazards,
observe the following precautions:
Always use the screw to tighten the
contact adapter to the main body. If it
becomes loose, the instrument may
vibrate or be dislocated and become a
hazard.
When using the contact adapter for
measuring, the instrument is subject to
vibration, so measurements should be
made only below 20,000 r/min or 333 r/s.
Use either the specified Hioki 9035 AC
ADAPTER or another 300 mA/6 V adapter
with 5-mm diameter and negative center
contact that complies with IEC 60950
safety standards.
CAUTION
Do not store or use the instrument where it
could be exposed to direct sunlight, high
temperature or humidity, or condensation.
Under such conditions, the instrument may
be damaged and insulation may deteriorate
so that it no longer meets specifications.
To avoid electrical hazards and damage to
the instrument, do not apply voltage
exceeding the rated maximum to the output
terminals.

8
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NOTE Depending on the material of the object
to be measured or method of touching
the contact tip, the measurement error
may occur.
Do not perform measurements in
locations with high humidity or where
those are subject to intense ambient
light.
Avoid scratching or dirtying the two
lenses inside the detector window.
Do not switch between FAST and
SLOW modes when the instrument is
set to the MAX or MIN hold
measurement mode. (3404 only)

9
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Chapter 1 Overview
____________________________________________
Chapter 1
Overview
1.1 Product Overview
This instrument is a non-contact, highly
portable tachometer that functions by
measuring the visible light reflected from
reflective tape attached to the object to
be measured. It can also be used as a
contact type tachometer by attaching the
optional 9213 CONTACT ADAPTER,
sold separately.

10
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Chapter 1 Overview
____________________________________________
(1)
(2)
(3)
(4)
(5)
(6)
(10)
(11)
3403
(7) (8) (9)
(1)
(2)
(3)
(12)
(4)
(13)
(5)
(6)
(10)
(15)
(11)
(16)
3404
(7) (8) (9)
(17)
(14)
1.2 Names and Functions of
Parts

11
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Chapter 1 Overview
____________________________________________
(1) Power switch Turn to ON for measurement.
(2) Photoelectric
Detection
Window
Contains the light emitter and
receiver devices.
(3) Display Displays digital values.
(4) Reflected light
verification LED Lights when the instrument is detecting reflected light.
(5) HOLD switch Holds the current measured
value.
(6) Buzzer Sounds when reflected light is
detected (can be set not to
buzz).
(7) HOLD mark Lights when in a HOLD
condition.
(8) Battery low
mark Lights when battery replacement is needed.
(9) Unit symbols Indicates unit symbols.
(10) AC adapter
jack Used to connect an AC adapter (300 mA/6 V, 5 mm
dia)
(11) r/min,r/s switch Used to select r/min
(revolutions per minute) or r/s
(revolutions
per second).
(12) RESET switch Resets (initializes) at the
measurement mode.
(13) MODE switch Used to select measurement
mode.

12
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Chapter 1 Overview
____________________________________________
(14) MODE symbols
MAX
MIN
TOTAL
PERIOD
Holds maximum reading
Holds minimum reading
Total amount of rotations
Period of rotation measurement
(15) FAST/SLOW
mode switch Selects the sampling period.
(16) Analog output
range switch Selects between x 0.1 (mV) and x 0.01 (mV) for r/min
measurement and selects
between x 10 (mV) and x 1
(mV) for r/s measurement.
(17) OUTPUT
terminal Used to connect a recorder or other equipment with a 9094
OUTPUT CORD.

13
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Chapter 2 Measurement Method
____________________________________________
Chapter 2
Measurement Method
2.1 Measurement Preparations
1. If this is the first time the instrument
will be used, insert the batteries.
2. Attach the reflective tape to the
rotating object.
Before attaching the tape, make sure
that the surface of the object is free of
dirt, grease or dust.
3. Turn on the power switch, and check
that all segments of the display light
for about one second.
If the mark lights, replace the
batteries.
4. Turn the detector window so that the
red emitted light faces the reflective
tape on the rotating object. If the
reflected light is being detected, the
buzzer sounds and the LED lights.
If the reflectivity of the rotating object
itself is high and light is reflected from
portions other than the reflective tape,
tilt the instrument to restrict the
incident light and obtain a more
accurate reading.

14
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Chapter 2 Measurement Method
____________________________________________
NOTE The red light from the instrument shall
strike the reflective tape at an incidence
angle of 45 degrees or less. If the
incidence angle exceeds 45 degrees,
the instrument may not be able to
detect the reflected light and may not
be able to do measurement.
Reflective tape
Red light
Incidence angle

15
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Chapter 2 Measurement Method
____________________________________________
2.2 Normal Measurement
1. When the power is turned on, the
instrument will automatically enter the
normal measurement mode.
2. The speed of rotation of the object will
be measured and displayed.
The speed of rotation range can be
switched between r/min and r/s during
measurement. The 3404 can also be
switched between FAST and SLOW
sampling period.
On the 3403, the last digit of the
display will be fixed to 0 for counts
over 20,000.
Analog output on the 3404 will match
the displayed value.
For speed of rotation measurement
under 30 r/min in the 3404 SLOW
mode or on the 3403 or for
measurement under 120 r/min in the
3404 FAST mode, the display will
appear as indicated right.
The display will appear as "-----" for
measurement over 100,000 r/min.

16
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Chapter 2 Measurement Method
____________________________________________
NOTE When the count exceeds 20,000 on the
3404 in the SLOW mode, the last digit
will be fixed to zero, and, in the FAST
mode the last two digits will be fixed to
zero. This is the same for MIN and MAX
hold modes as well.
During r/s measurements, accuracy of
values greater than 1600 r/s is not
assured.
2.3 MAX Hold Measurement
(3404 only)
Press the MODE switch to enter the MAX
mode.
・In this mode, like the normal
measurement, the speed of rotation is
measured and the maximum detected
value is displayed where there is
variation in the speed of rotation.
・Measurement may be freely switched
between r/min and r/s.
・Pressing the RESET switch in this
mode will clear the displayed
maximum value.