2.5 Setting the Upper and Lower Alarm
Temperatures
2.6 Displaying the Maximum and Minimum
Temperatures
2.7 Switching On the Laser Marker Beem
(3415-01)
2.8 Turning the Power Off
2.9 Changing the Batteries
12
12
13
13
14
14
15
Chapter 3 Specification 17
3.1 General Specification 3415-01 17
3.2 General Specification 3416-01
3.3 General Specification 3418
19
21
1
3
7
Page 39
Chapter 4 Maintenance and Service 23
4.1 Troubleshooting 25
4.2 Questions and Answers about
Measurement
26
Page 40
―――――――――――――――――――――――――――
Introduction
Tha n k you for purc hasi ng the Hioki "341501/3416-01/3418 Te mp e r a t u r e Hi T es t er . To
obtain maxi mum performance from the
product, please r ead this manu al first, an d
keep it h an dy for futur e reference.
i
――――――――――――――――――――――――
Introduction
Page 41
ii
―――――――――――――――――――――――――――
Safety Notes
WARNING
Mishandling this product 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.
This Instruction Manu al provides information
and warnings essential for operating this
equipment in a safe manne r and for
maintaining it in safe operating condition.
Before using this equipment, be sure to
carefully r ea d t he following safety notes.
Safety symbols
In the manual, this mark indicates
explanations which it is particularly
important that the user read before using
the product.
Indicates warnings relating to the laser.
――――――――――――――――――――――――
Safety Notes
Page 42
―――――――――――――――――――――――――――
iii
The following symbols ar e us ed in th i s
Instru ction Man u al to in dicate t he relative
importanc e of cautions an d war nin gs.
Indicates that incorrect operation
DANGER
presents extreme danger of accident
resulting in death or serious injury to
the user.
Indicates that incorrect operation
WARNING
presents significant danger of accident
resulting in death or serious injury to
the user.
Indicates that incorrect operation
CAUTION
presents possibility of injury to the user
or damage to the equipment.
Denotes items of advice related to
NOTE
performance of the equipment or to its
correct operation.
Accuracy
rdg. (displayed or indicated value)
This signifies t h e va lue actu all y being
measured, i.e., t he value t h at is currently
indicated or displayed by th e me asu ri ng
instrument.
――――――――――――――――――――――――
Safety Notes
Page 43
iv
―――――――――――――――――――――――――――
Check before use
Before usin g th e product, inspect it and check
the operation to ma ke s ure th at the product
was no t da ma ge d d ue to poor stor ag e or
tra ns po rt conditions. If da mag e is found,
contact your dealer or Hioki representative.
Inspection
Whe n you receive t h i s p rod uct, before use,
please check th at no abnormality or damage
has occurred during delivery. In particular,
be s ur e to check th e accessories, t h e liquid
cryst al displ ay, th e control keys, a n d th e lens.
In t he unlikely event of damage, or if t he
product does not function accord ing t o
specification, you should immediately contact
the dealer from whom you bought the
product, or th e ne ar es t Hioki service facility.
――――――――――――――――――――――――
Inspection
Page 44
―――――――――――――――――――――――――――
Notes on Use
In order to e nsure safe operation and to
obtain maxi mum performance from the
product, observe the cautions listed below.
DANGER
Operation of this product according to any
・
procedure not specified in this manual may
cause explosion due to dangerous laser
radiation.
The 3415-01 (2-beam laser marker type product)
・
uses as a light source a s emiconducting laser
which emits visible light, and which conforms to
JIS standard class 2 (JIS C6802). (Wavelength
670nm, maximum power output 1 mW)
Since there is considerable danger of this laser
light causing damage to the eyes, be very
careful not to direct this laser light into your
eyes or those of another person.
Do not look directly into the laser light from the
・
optical system.
When measuring the temperature of an object
・
which has a mirror finish, be careful not to allow
the laser light beam to be reflected off the
surface into your eyes or those of another
person.
Do not allow the laser light beam to impinge
・
upon any gas which can explode.
v
――――――――――――――――――――――――
Notes on Use
Page 45
vi
―――――――――――――――――――――――――――
WARNING
To avoid electric shock, do not allow the product
・
to get wet, and do not use it when your hands
are wet.
If the protective functions of the product are
・
damaged, either remove it from service or mark
it clearly so that others do not use it
inadvertently.
CAUTION
Do not use the product near a device that
・
generates a strong electromagnetic field or
electrostatic charge, as these may cause erroneous
measurements.
The product should always be operated indoors in a
・
range from 0
to 40 (3415-01), 0to 50 (341601, 3418) and 35% to 80% RH or less.
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.
――――――――――――――――――――――――
Notes on Use
Page 46
―――――――――――――――――――――――――――
CAUTION
This product is not designed to be entirely water- or
・
vii
dust-proof. To avoid damage, do not use it in a wet
or dusty environment.
Do not use the product where it may be exposed to
・
corrosive or combustible gases. The product may
be damaged or cause an explosion.
To avoid damage to the product, protect it from
・
vibration or shock during transport and handling,
and be especially careful to avoid dropping.
Do not point the lens at the sun or at any other
・
source of strong light. If you do, the s ensor may be
damaged.
Do not contact the lens against the object whose
・
temperature is to be measured, or get it dirty, allow
it to be scratched, or allow any foreign material to
adhere to it. Doing so may cause errors.
・ Before use, verify tha t no d a mag e ha s
NOTE
occurred due to careless stor age or t ran sp ort ,
and check th e appearance an d operation of
the product.
・ The "
" indicator flashes when the
remaining battery capacity is low. I n this
case, th e i nst rument 's reliability is not
guaranteed . Replace the b attery immediately.
――――――――――――――――――――――――
Notes on Use
Page 47
viii
―――――――――――――――――――――――――――
――――――――――――――――――――――――
Notes on Use
Page 48
―――――――――――――――――――――――――――
Chapter 1
Summary
1.1 Product Summary
1. Theory of M easure ment
Every object emits infrared energy in
accordance wit h its te mp e r at u r e. By
measuring the amount of this radiant energy,
it is possible to det er min e t h e t e mp er at ur e of
the emitting object.
2. About infra red
Infrared radiation is a form of light
(electromagnetic radiation), and has the
property tha t it passes easily throu gh air,
while it is easily absorbed by solid mat ter .
With a n emission th ermome ter which
operates by detecting i nfrared radiation,
accurate meas ureme nt is possible,
irrespective of the a ir temp er atu re or the
measurement distance.
1
3. Emission Ther mometer Structure
Infrared radiation which has been emitted
from t he object is focused upon an infrared
radiat io n sensor, via a n optical syste m which
includes a lens which is tr an s pa re n t to
――――――――――――――――――――――――
Chapter 1 Summary
Page 49
2
―――――――――――――――――――――――――――
infrared radiat ion, an 8 μmcutonfilter,etc..
The output signal from the infrared radiation
sensor is in p ut to a n electronic circuit along
with the output signal from a stand ard
temperature sensor.
The electronic circuit calculates the object
temperature while applying stan dard
tempe ratu re compensation, t her mal
emissivity compensation, etc., and displays
the result.
――――――――――――――――――――――――
Chapter 1 Summary
Page 50
―――――――――――――――――――――――――――
1.2Names and Functions of Parts
3415-01 2-beam laser
marker type
3418 Standard type
3416-01 LED spot
marker type
(1) Lens
3
(2) Laser mark beam
emission openings(3415-01)
(5) Numeric input keys
(6) MEAS key
(4) MODE key
――――――――――――――――――――――――
(3) LED mark beam
emission opening
(7) LCD display
Chapter 1 Summary
Page 51
4
―――――――――――――――――――――――――――
(1) Lens
Infrared rays from the object whose
temperature is to be measured are received
here.
(2) Laser marker beam emission openings (3415-
01)
The laser ma rke r bea ms are emitted from
here.
(3) LED mark beam emission opening (3416-01)
The LED ma rk beam is emitted from here.
(4)
MODE
key
Pressing this key switches th e mode around
the cycleε→ALM
.
HOLD
→
ALM→MAX→MIN→
HOLD: After measurement is completed,
the HOLD indication appears, is
illuminated, an d the measured value is
held.
ε: The inherent thermal emissivityof the
object is set using theandkeys.
: The upp er limit a la rm t emp erat ur e
ALM
is set using the
andkeys.
ALM: The lower limit a la rm t emp era tur e
is set using the
andkeys.
MAX: The maxi mum t emper atur e du ring
measurement is displayed.
MIN: The mini mum temper atur e during
measurement is displayed.
――――――――――――――――――――――――
Chapter 1 Summary
Page 52
―――――――――――――――――――――――――――
(5) Numeric input keys
key: The numerical value is reduced.
key: The nu merical value is increased.
If either of these numerical value keys is held
down, th e n umer ical value ch anges rapid ly in
the appropriate direction.
(6) MEAS key
When pressed, th e power is t urn ed on and
measurement starts. When released,
measurement is terminated.
(7) LCD display
:Indicates wheth er th e laser marke r b eam
is on or not. During measurement with the
laser mark er be am on, this indication
fla s h e s (3415-01).
:Shows the amount of battery
capacity r emaining. If t he batt ery voltage
drops below the minimum level to
guarantee accuracy, the
mark (only)
flashes.
:Turned on when th e display is showing
tempe ratu re in products of degrees Celsius.
HOLD: Appears when the last measured
tempe ratu re value is being held.
ε: Appears wh en th e th ermal emissivity is
being set.
: Appears when the upper limit
ALM
alarm temperature is being set.
ALM: Appears when th e lower limit
――――――――――――――――――――――――
Chapter 1 Summary
5
Page 53
6
―――――――――――――――――――――――――――
alarm temperature is being set.
MAX: Appears when the maximu m
temperature during measurement is being
displayed.
MIN: Appears when the minimum
temperature during measurement is being
displayed.
SET: Blinking when a numerical value can
be set.(during setting of ε, ALM
,and
ALM)
――――――――――――――――――――――――
Chapter 1 Summary
Page 54
―――――――――――――――――――――――――――
Chapter 2
Making Measurements
2.1 Turning the Power On
When th e power is off, pressing th e MEAS
key t u rn s on th e power.
The values an d sett ings on the LCD display
return to the state before the power was last
turned off.
7
・ If, fr om th e pow er off co nditio n, the
NOTE
key is held down for more t h an one second,
measurement starts.
MEAS
2.2 Measuring Temperature
1. P r e ss the
until the (ε) ma rk lights up.
Ref e r to t he followin g ta bl e and , us i ng t he
andkeys, set the the rma l emissivity for
the object whose temperature is to be
measured.
MODE
――――――――――――――――――――――――
key, repeated ly if n ecessary,
Chapter 2 Making Measurements
Page 55
8
―――――――――――――――――――――――――――
SubstanceThermal
emissivity
Asphalt0.90 to 0.98Cloth (black)0.98
Concrete0.94Human skin0.98
Cement0.96Leather0.75 to 0.80
Sand0.90Charcoal
Earth0.92 to 0.96Lacquer0.80 to 0.95
Water0.92 to 0.96Lacquer
Ice0.96 to 0.98Rubber
Snow0.83Plastic0.85 to 0.95
Glass0.90 to 0.95Timber0.90
Ceramic0.90 to 0.94Paper0.70 to 0.94
Marble0.94Chromium
Plaster0.80 to 0.90Copper
Mortar0.89 to 0.91Iron oxides0.78 to 0.82
Brick (red)0.93 to 0.96Textiles0.90
SubstanceThermal
emissivity
(powder)
(matt)
(black)
oxides
oxides
0.96
0.97
0.94
0.81
0.78
・ Variations in the surface condition and color
NOTE
of the object whose temperature is to be
measured may cause the th ermal emissivity ε
to be som ewhat different from th e va lues i n
the above table. If an accurate
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 56
―――――――――――――――――――――――――――
temperature measurement is desired for an
object whose therma l emissivity is not known,
black body ta p e or bl ack body sp r a y (sold
separately) should be used. In th is case the
setting for thermal emissivity (ε) should be
th e val u e i nd ic at ed on bla ck body ta p e o r
black body spr ay .
2. P oi nt th e len s a t th e object whose
temperature is to be measured.
3. P r e ss the MEAS key.
Measurement is performed as long as the
MEAS ke y is kep t pressed .
DANGER
With the 3415-01, whenever the indicationis
flashing, the laser marker beam is being emitted.
Exercise extreme care not to allow the laser
marker beam to enter your eyes (because of this
laser light causing damage to the eyes) or those
of another person.
9
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 57
10
―――――――――――――――――――――――――――
4. Referring to the figure, aim the laser beam a t
the object whose temperature is to be
measured.
・ All dimension a re millimeters, and φ
represents a diameter.
3415-01/3418
φ14φ40
(60)
φ72
(95)
φ140
(163)
500
The dimensions in parenthesis show the target.
――――――――――――――――――――――――
Chapter 2 Making Measurements
1000
2000
Target object
Measurement
field diameter
The laser marker beams
is aimed both sides of the
measurement field
diameter. (3415-01)
(mm)
Page 58
―――――――――――――――――――――――――――
3416-01
φ10.1φ32.4
φ2.5
11
30
The marker beam is focused at a distance of 30 mm.
・ Although th e field of measuremen t and the
NOTE
sig h t i n g al m ost coincide, act u a l l y the field of
50
The place at which the "◎"
mark is clearest is where
the diameter of the spot is
smallest (2.5 mm).
100
measurement corresponds to the d iameter for
90% optical re spo ns e. The object whose
temperature is to be measured needs to be
larger t han t he measurement diameter by a n
adequate margin‐a t least 1.5 to 2 times
larger.
5. Read the display.
・ On releasin g
NOTE
key, measurement is
MEAS
terminated. Then, the marker is turned off
and the measurement dat a is held in display.
・ When the measurement value is out of the
measurement temperature range (-50 to 500
), the displa y wil l fla sh .
(mm)
Target object
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 59
12
―――――――――――――――――――――――――――
2.3 Continuous Measurement
1. With the power source off, th e product is pu t
into the continuous measu reme nt mode by
holding th e MODE key down and t he n
pressing the MEAS key.
2. An yti me
HOLD modes toggled.
・ An auto power off function does not operate
NOTE
in th e continuous meas ur emen t mode. Be
sure to retu rn to HOLD mode. The power goes
off a fte r 15 seconds.
・ During the continuous measu remen t mode,
the laser mark er (3415-01) or LED marke r
(3416-01) is n ot t u r n e d on. ( Ma rk e r is t u r n e d
on whenever MEAS key is p ressed.)
MEAS
key is pressed,
MEAS
and
2.4 How to Specify the Thermal
Emissivity (ε)
1. St ick black body ta p e on t h e object whose
temperature is to be measured, or spray it
wit h black body spr ay .
2. Set t he the rma l emissivity value(ε)onthe
display screen to the value in dicated on b lack
body ta p e (black body spr ay).
3. P r e ss the
temperature (T
body ta p e (or black body spr ay) is app lie d.
key, so as to measure t he
MEAS
) of the part on which black
real
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 60
―――――――――――――――――――――――――――
4. Measure the temperature (T) of the parts to
which blac k body t a p e (or black body spra y) i s
not applied.
5. Change the th erma l emissivity (ε).
6. The val ue of t he th er mal emissivity (ε)at
which T comes out to be equal to T
correct valu e for t h e i n h er e n t th e r m a l
emissi vit y of th e body whose te mp e r a t u r e is
to be measu red.
real
13
is th e
2.5 Setting the Upper and Lower Alarm
Temperatures
1. P r e ss the MODE key, repeate dly if necessary,
until the ALM
desired, appears.
2. P r e ss the
temp era tur e for the upper or lower limit
alarm.
mark or the
key or t hekey to s et th e
ALM ma rk, as
2.6 Displaying the Maximum and
Minimum Temperatures
1. P r e ss the
until the MAX mark or the MIN ma rk, as
desired, appears.
2. The maximum (or minimum) temperature
during measurement will be displayed on the
display.
MODE
――――――――――――――――――――――――
key, repeated ly if n ecessary,
Chapter 2 Making Measurements
Page 61
14
―――――――――――――――――――――――――――
2.7 Switching On the Laser Marker
Beam (3415-01)
Switch the laser marker beam on and off by
pressing the
while the display shows
While the laser mar ker beam is on, t he m ar k
appears in the display.
key during measurement, or
HOLD,MAX
,or
MIN
.
2.8 Turning the Power Off
The product ha s a n auto power off function.
The power goes off a fte r 15 seconds if no
control act ion is pe rfor med.
If you need to check the measured
temp er at u re value agai n, just p ress th e
MEAS k e y on ce.
・ During measurement, the auto power off
NOTE
function does not operate.
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 62
―――――――――――――――――――――――――――
15
2.9 Changing the Batteries
DANGER
When changing the batteries, be careful not to
press the MEAS key by mistake.
It is ve ry dangerous to allow the laser beam to
shine into your e yes or those of another person.
Also, after changing the batteries, be sure to
close the cover before using the product.
WARNING
Do not mix old and new batteries, or different
・
types of batteries. Also, be careful to observe
battery polarity during installation. Otherwise,
poor performance or damage from battery
leakage could result.
To avoid the possibility of explosion, do not
・
short circuit, disassemble or incinerate
batteries.
Handle and dispose of batteries in accordance
・
with local regulations.
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 63
16
―――――――――――――――――――――――――――
Ref e r to the fi g u r e and follow the follo wing
procedure to change the batteries:
Lower case
R03 x 4
batteries
Rear lid
Rear lid
1. Lay the product down with the lower case
(the bo ttom surfa ce of t he product)
uppermost, an d remove the rea r lid.
2. Change the batteries, while being sure to pu t
the m in t he r ight way round.
3. Close t he rea r lid a ga i n.
――――――――――――――――――――――――
Chapter 2 Making Measurements
Page 64
―――――――――――――――――――――――――――
17
Chapter 3
Specification
3.1 General Specification 3415-01
Product type3415-01 Tem p era t u r e Hi Tes te r
Measurement
temperature range
Display resolution1
Temperature and
humidity for
guaranteed accuracy
Guaranteed accuracy
period
Accuracy of
measurement
Repeatability1(0 to 500 )
Diameter of field of
measurement
Detection element /
optical lens
Measurement
wavelength
Sampling rate2 times/second
201 to 500
0 to 200
-50 to -1
(2-beamlasermarkertype)
-50 to 500(-58to 932 )
235(739 ),
80% RH or le ss
1year
1% rdg .
2
10%rdg.2
ε=1.0, t emperature of case 23
ambient humidity 55 %RH
2(-50 to -1 )
72 mm (2.83") a t 1000 (39.37") m m
ther mop ile / silicon
8to16μm
5 ,
――――――――――――――――――――――――
Chapter 3 Specification
Page 65
18
―――――――――――――――――――――――――――
Response time1.5 seconds (95% res ponse)
Sighting2-beamlasermarker(class2)
Thermal emissivity
compensation
Upper and lower limit
alarm function
Auto power off15 seconds (except when set to
Other functionsInstant, hold, maximum, minimum
Power sourceFour R03/AAA dry batteries (1.5
Maximum rated power 342mVA (max.)
Batt-Lo light flashing
voltage
Ambient temperature
for use
Ambient humidity for
use
Storage temperature-20 t o 55(-4to 131 ); no
Location for useIndoor, altitude up to 2000 mm
DimensionsApprox. 40W x 1 70H x 36D mm
MassApprox. 140 g (4.9 oz.)
Applicable standardsEMC: EN61326
Accessories suppliedinstruction manua l
0.10 to 1.00 by ste ps of 0.01
setting ran ge -55 to 505(-67to
)
941
continuous measu rem ent mode)
VDC x 4) (Approx. 40 hou rs
continuous operation, with laser
mark er not illuminated)
4.4 0.2V
0to40 (32to 104 )
35 to 85% RH; no condensat ion
condensation
(6562-ft.)
(1.57"W x 6.69"H x 1.42"D)
(excluding ba t teri es)
carrying case,
batteries (4 st anda rd dry cells,
R03/AAA x 4)
――――――――――――――――――――――――
Chapter 3 Specification
Page 66
―――――――――――――――――――――――――――
19
3.2 General Specification 3416-01
Product type3416-01 Tem p era t u r e Hi Tes te r
Measurement
temperature range
Display resolution1
Temperature and
humidity for
guaranteed accuracy
Guaranteed accuracy
period
Accuracy of
measurement
Repeatability1(0 to 500 )
Diameter of field of
measurement
Detection element /
optical lens
Measurement
wavelength
Sampling rate2 times/second
Response time1.5 seconds (95% res pons e)
Sightingred LED spot mark er
Thermal emissivity
compensation
Upper and lower limit
alarm function
201 to 500
0 to 200
-50 to -1
――――――――――――――――――――――――
(LED spot ma rk e r type)
-50 to 500(-58to 932 )
235(739 ),
80% RH or le ss
1year
1% rdg .
2
10%rdg.2
ε=1.0, t emperature of case 23
ambient humidity 55 %RH
2(-50 to -1 )
2.5 mm (0.1") at 30 m m (1.18")
ther mop ile / silicon
8to16μm
0.10 to 1.00 by ste ps of 0.01
setting ran ge -55 to 505(-67to
)
941
Chapter 3 Specification
5 ,
Page 67
20
―――――――――――――――――――――――――――
Auto power off15 seconds (except when set to
Other functionsInstant, hold, maximum, minimum
Power sourceFour R03/AAA dry batteries
Maximum rated power 180 mVA (ma x.)
Batt-Lo light flashing
voltage
Ambient temperature
for use
Ambient humidity for
use
Storage temperature-20 t o 55(-4to 131 ); no
Location for useIndoor, altitude up to 2000 mm
DimensionsApprox. 40W x 1 70H x 36D mm
MassApprox. 140 g (4.9 oz.)
Applicable standardsEMC: EN61326
Accessories suppliedinstruction manua l
continuous measu rem ent mode)
(1.5 VDC x 4)
(Approx. 40 h ou r s conti nuous
operation, wit h LED ma rk er not
illuminated)
4.4 0.2V
0to50 (32to 122 )
35 to 85% RH; no condensat ion
condensation
(6562-ft.)
(1.57"W x 6.69"H x 1.42"D)
(excluding ba t teri es)
carrying case,
batteries (4 st anda rd dry cells,
R03/AAA x 4)
10%rdg.2
ε=1.0, t emperature of case 23
ambient humidity 55 %RH
2(-50 to -1 )
72 mm (2.83") a t 1000 mm (39.37")
ther mop ile / silicon
8to16μm
0.10 to 1.00 by ste ps of 0.01
setting ran ge -55 to 505(-67to
)
941
Chapter 3 Specification
5 ,
Page 69
22
―――――――――――――――――――――――――――
Auto power off15 seconds (except when set to
Other functionsInstant, hold, maximum, minimum
Power sourceFour R03/AAA dry batteries
Maximum rated power 72 mVA (max.)
Batt-Lo light flashing
voltage
Ambient temperature
for use
Ambient humidity for
use
Storage temperature-20 t o 55(-4to 131 ); no
Location for useIndoor, altitude up to 2000 mm
DimensionsApprox. 40W x 1 70H x 36D mm
MassApprox. 140 g (4.9 oz.)
Applicable standardsEMC:EN61326
Accessories suppliedinstruction manua l
continuous measu rem ent mode)
(1.5 VDC x 4)
(Approx. 40 h ou r s conti nuous
operation)
4.4 0.2V
0to50 (32to 122 )
35 to 85% RH; no condensat ion
condensation
(6562-ft.)
(1.57"W x 6.69"H x 1.42"D)
(excluding ba t teri es)
carrying case,
batteries (4 st anda rd dry cells,
R03/AAA x 4)
――――――――――――――――――――――――
Chapter 3 Specification
Page 70
―――――――――――――――――――――――――――
23
Chapter 4
Maintenance and
Service
WARNING
If the protective functions of the product are
damaged, either remove it from service or mark it
clearly so that others do not use it inadvertently.
――――――――――――――――――――――――
Chapter 4 Maintenance and Service
Page 71
24
―――――――――――――――――――――――――――
CAUTION
To clean the product, wipe it gently with a soft cloth
・
moistened with water or mild detergent. Never use
solvents such as benzene, alcohol, acetone, ether,
ketones, thinners or gasoline, as they can deform
and discolor the case.
To avoid corrosion from battery leakage, remove
・
the batteries from the product if it is to be stored for
alongtime.
If the product seems to be malfunctioning, confirm
・
that the batteries are not discharged before
contacting 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
instrument cannot move within the package. Be
sure to include details of the problem. Hioki cannot
be responsible for damage that occurs during
shipment.
If the lens is dirty, clean dust etc. off it using a
・
camera lens cleaning tissue, blower or similar
means.
If the lens is very dirty, clean it using a cotton bud
・
containing a small quantity of alcohol.
――――――――――――――――――――――――
Chapter 4 Maintenance and Service
Page 72
―――――――――――――――――――――――――――
25
4.1 Troubleshooting
ProblemCauseSolution
No displayBatteries exhausted,
Measured
temperature
value peculiar
The display
shows "Err"
poorly contacting, or
wrongly inserted.
Lens dirtyClean the lens.
A heat source such
as a high
temperature body is
present close by.
The thermal
emissivity value is
not appropriate.
The product is faulty. Contact a service
Service
If th e above sho wn solu tions fail to solve the
problem, it is possible th a t your product is
malfunctioning. Please contact your sales
agent or th e manufacturer to arrange for
repair.
Change the
batteries, or insert
them correctly.
Intercept radiation
from the heat source
by using an
insulation plate etc.
Set the thermal
emissivity to an
appropriate value.
facility.
――――――――――――――――――――――――
Chapter 4 Maintenance and Service
Page 73
26
―――――――――――――――――――――――――――
4.2 Questions and Answers about
Measurement
Q: Why can't I measure the temperature on the
other side of a glass pane?
A: Normal glass absorbs infrared radiation of the
wavel eng th (8 to 16 μm) which t hi s device
uses for temperature measurement.
Therefore thi s device can not mea su re the
te m p e r a t u r e of a n object on th e ot he r side of
a glass sheet, but instead measures the
temperature of the glass sheet itself.
Q: Light is shining on an object. Why can't I
meas ur e it s t emp er at ur e accurately?
A: Since fluorescent light includes almost no
infrared radiation, it ha s almost no effect
upon normal tempe ratu re mea surem ent.
However sun light a nd incandescent lights
emit radiation which includes substantial
amounts of the infrared radiation used by this
device for temperature measurement, and
accordingly m a y p rod uce s igni ficant
mea s u r e m e n t d iscr epan cies.
――――――――――――――――――――――――
Chapter 4 Maintenance and Service
Page 74
―――――――――――――――――――――――――――
27
Q: Why can't I measure the temperature of a
gas, vapor, or flame?
A: Since gases, vapors, and flames are
transpar ent to infrared radiation, their
temperatures cannot be measured in this
way.
Q: Why can't I measure temperature through
rain or fog?
A: Since rain and fog reflect and absorb infrared
radiation, accurate measurement through
th e m is impossible.
Q: Doesn't the measurement distance affect the
resulting measured value for temperature?
A: Air hardly absorbs at all infrared radiation of
the wavelengths (8 to 16 μm) used by this
device for temperature measurement.
Therefore accurate t emperature measurement
is possible, irrespective of the measurement
distance.
――――――――――――――――――――――――
Chapter 4 Maintenance and Service
Page 75
Page 76
HIOKI 3415-01, 3416-01, 3418
TEMPERATURE HiTESTER
Instruction Manual
Publication date: September 2008 Revised edition 6
Edited and published by HIOKI E.E. CORPORATION
Technical Support Section
All inquiries to International Sales and Marketing
Department
81 Koizumi, Ue da, Nagano , 386-1192, J ap a n
TE L: +81-268-28-0562 / FAX: +81-268-28-0568
E-mail: os-com@hioki.c o.jp
URL:http://www.hioki.com/
Printed in Japan 3418A980-06
・
All reas onable care ha s been tak en in th e production of
this manual, but if you find any points which are
unclear or i n error, please contact your supplier or the
Sales and Marketing International Department at
HIOKI headquarters.
・
In the in terest s of product development, the contents of
this m anua l are subject to revision without prior
notice.
・
Unauthorized reproduction or copying of this manual is
prohibited.
Page 77
HEAD OFFICE
81 Koizumi, Ueda, Nagano 386-1192, Japan
TEL +81-268-28-0562 / FAX +81-268-28-0568
E-mail: os-com@hioki.co.jp/
URL http: //www.hioki.com/
HIOKI USA CORPORATION
6 Corporate Drive, Cranbury, NJ 08512, USA
TEL +1-609-409-9109 / FAX +1-609-409-9108
3418A980-06 08-09H
Printed on recycled paper
Page 78
Page 79
※お問い合わせは、最寄りの営業所または本社販売企画課まで。
3418A980-06 08-09H
この取扱説明書は再生紙を使用しています。
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