Hand-held
Infrared Radiation
Thermometer
IRT-100-TAs

CAUTION - Laser Light
Do not aim laser beam toward faces.
Do not stare into beam or into reflections of the beam
off mirror-like surfaces.
Do not attempt to open the housing, otherthan to change the batteries. There are no otheruser-serviceable parts inside.

■Relation of Distance andMeasuring Diameter
The figure below shows the required minimum area (optical sensitivity: 90%) on
an object being tested at a distance of 500mm and 1000mm.

Measuring Window

The measured area increases with distance.

Dust, stains and flaws on the measuring window cause inaccurate readings.

When measuring, the distance should be as short as possible.

Wipe stains off with a soft cloth used for lenses of camera. Use absorbent cotton
dipped into neutral detergent diluted with water to remove tough stains.

■Safety Precautions

Note
Use of other substance other than neutral detergent can damage the window to●Do not touch the instrument on an object being tested. A contact with anobject at a high temperature can cause irreparable damage to the instrument
or inaccurate readings.

cause the laser beam to scatter.

●Do not touch the measuring window of the instrument with hard objects.
Do not let foreign objects penetrate the measuring window or a hard object
drop on the window.

Instruction Manual■Maintenance

Other Parts of the Instrument
Clean the instrument with a dry cloth. To remove tough stains, use a damp cloth●Always put the cap back on the measuring window after measurement toprevent foreign objects from penetrating the window.

from which water-diluted neutral detergent has been rinsed out. Use of paintthinner, benzine, alcohol and other chemicals may blur the display window, erase

Read this manual before using the instrument.

markings or cause the enclosures to crack. It is preferable to keep the instrumentin the carrying case.

SHINKO TECHNOS CO., LTD.

CE Marking: Conforms to EMC directive(89/336/EEC, 92/31/EEC
amendment,93/68/EEC amendment)
EN55011 Group 1, Class B, EN50082-1●In order to protect the optical system of the instrument, do not subject the■Specifications
Measuring range
Detecting element
Measuring wavelength
Measuring diameter
Measuring accuracy

Repeatability
Stability
Response time
CollimationBeam diameter
Beam output
Display indications

Auto power off
Alarm
Emissivity correction

Display illumination
Operating temperature
Storage temperaturePower source
Battery life
Dimension
WeightAccessories-40 to 500℃
Thermopile
８ to 14 μm
φ45/500mm (Optical sensitivity: 90%)
Within ±1% of measured value or within ±2℃,
whichever is greater. However, –30 to 0℃:
Ｗｉｔｈｉｎ±3℃, Lower than -30℃: Ｗｉｔｈｉｎ±5℃（At ２５℃ ambient temperature）

Within ±1℃±5℃ (under EMC test)
0.8 seconds (90% response)
Laser beam marks the center of the areameasured
Approx. 5mm (at a distance of 1m)
Less than 1mW , 670nm (IEC, class Ⅱ)
Current reading, Maximum reading, Minimum
reading, Reading hold, Emissivity, Alarm value,
Low battery
Automatically shuts power off in 30 seconds
after Reading holdHigh limit alarm (with a beeper)
Selectable from DARK (0.95), BRIGHT (0.80),
FREE (variable from 0.30 to 1.90, Initial value:1.00)
Automatic back-light
0 to 50℃-20 to 55℃
Alkaline battery, AA (UM-3) type, 2 pieces
Approx. 50 hours for continuous measurement
81 (W) x 142 (H) x 32 (D) mmApprox. 180g
Alkaline battery AA (UM-3) type, 2 pieces
Instruction manual, 1 copy
Ｖｉｎｙｌ case, 1 piece

instrument to extreme shocks and vibration.
●Keep the instrument away from objects with built up static charges.

■Troubleshooting
Symptoms●Select the proper emissivity value for accurate readings.
●When there is a rapid change to the ambient temperature, wait a while to let
the temperature of instrument stabilize for accurate readings.
●When the instrument is put in storage or not in use for a long period of time,
remove the batteries from the instrument.

CausesCountermeasures

No display appears.

Batteries have been used up or they have notbeen inserted correctly.

Replace or insert them correctly.

Laser beam is not
emitted or is weak.

Battery voltage is low.

Measurement is possible. Replace batteries when the laser maker isnecessary.

Abnormal reading.

Cap is not removed.

Check if the cap has been removed.

Measuring window is dirty.

Clean the measuring window, referring to the“Maintenance” section.

Measurement was done with maximum or
minimum reading.

Check the measuring condition. Switch it to current reading.

Heat source nearby affects the measurement.

Shield the heat source with a shielding plate.

Emissivity is not selected properly.

If emissivity is unknown, refer to“Reference”. Or measure temperature
with a contact type thermometer and obtain adequate emissivity bychanging it to have same temperature as measured on condition ofemissivity selection at FREE.

Target area is too small.

Check the target area and keep a sufficient area for measurement.

Unstable reading

Unit is affected by rapid temperature change.

Leave unit alone to stabilize its temperature, then measure.

No reading appears
but display is 【---】.

Out of measuring temperature range.

Check the target to be measured.

Emissivity selection setting is not matched.

Same as above countermeasure.

Ambient temperature is out of specified range.

Check operation environment.

●Do not use or store the instrument at a location where;
temperature and/or humidity are high,the instrument is exposed to the direct sunlight,
there is a lot of dust.,
there are greasy fumes or corrosive gasses,
as the measuring window may become deteriorated or soiled, causinginaccurate readings.

Reading is blinking.

SHINKO TECHNOS CO.,LTD.
●Do not use the instrument in water or other fluids. Do not store the instrument
where it can come into contact with water.
●Keep the instrument away from objects which produce a strong magnetic field.

OVERSEAS DIVISION

Reg. Office : 2-48, 1-Chome, Ina, Minoo, Osaka, Japan
Mail Address : P.O.Box 17, Minoo, Osaka, Japan: http://www.shinko-technos.co.jp
URL
Tel : 81-727-21-2781: overseas@shinko-technos.co.jp
E-mailFax: 81-727-24-1760

No.IRTTA11E1 2001.12

BatteryMeasurement Display(1) Installing Batteries
Press the battery compartment cover on its top and bottom as shown
below to remove it. Install batteries in correct polarity as shown inside
the battery compartment.

(2) Replacing Batteries
Replace the batteries when thelow battery symbol appears on theEmissivity
DARK :0.95
BRIGHT:0.80
FREE :0.3 to 1.90 variable

While pressing MEASURE key, aim the laser beam at an object being
tested. MEAS is shown on the display to indicate that the instrument is inmeasuring mode. Release MEASURE key to stop measurement. The
display reading is automatically frozen, with HOLD shown on the display.

Low Battery Symbol
Blinks when batteries wearout
MAX ： Displayed when themaximum reading isshown
MIN ： Displayed when theminimum reading isshown
ALARM: : Displayed during
alarm setting and blinks
during alarm

Displays temperature
readings, emissivity
value or alarm value

To display maximum or minimum reading;In the HOLD mode, press MODE key to display the maximum reading.
MAX is shown on the display. Press MODE key again to display theminimum reading. MIN is shown on the display.

display or the display blinks.
NoteAlways replace both batteries.

Settings

To display only the maximum or minimum reading during measurement;
With MAX or MIN shown on the display, press MEASURE key. Updated
maximum or minimum reading is shown on the display.
If no key is pressed for 30 seconds after the reading is frozen, theinstrument automatically turns itself off. Pressing MEASURE key to turnon the instrument cancels stored maximum or minimum reading. When thebatteries wear out, stored maximum or minimum reading is canceled aswell.

(1) Emissivity

Brightness SensorEmissivity of an object being tested can be selected from DARK (0.95),

Automatically lights up the display
back-light when it becomes dim.

BRIGHT (0.8) or FREE (variable from 0.3 to 1.90).

Displayed when temperature
readings are shown

Display

When the instrument is turned on, emissivity is set to DARK. A bar

Measure Key

appears under DARK, BRIGHT or FREE on the display to indicate which

Measurements are taken while
this key is pressed. Releasing
this key freezes the lastreading and automatically turns
the instrument off in 30
seconds, if no key is pressed.

one is selected. Press ▲ key to change selection. When FREE isselected, emissivity is set to 1.00. To change this value;① Press MEASURE key to turn on the instrument.
② While pressing ENT key, push MODE key. ALARM is shown on thedisplay.

Displayed when emissivity
value is shown

MEAS：Displayed during measurement
HOLD：Displayed during hold mode

■Setting Emissivity (reference)
The table below shows emissivity for some materials. Please note that these values
are just for reference and only apply to IRT-100-TA. Infrared radiation depends onmaterials, condition of the surface and ambient temperature.

Mode Key
Display the current, themaximum or the minimum
reading, and selects setting
mode.

Material
Water, Ice

Emissivity
0.98

Soil

Up KeyConcrete (wet)Concrete (dry)0.92 to 0.96

Material
Cloth, Fabric(colored)
Leather, Fur

0.96

0.96 to 0.98

Human skin

0.99

0.91 to 0.95

Vegetable, Fruit

0.98

Ceramic

0.85 to 0.95

Dough0.98

Down Key

Plaster, asbestos

0.92

Meat0.98

Sets emissivity and alarm
value.

Plastic0.90 to 0.95

Copper oxide

0.5 to 0.6

Rubber (black)

0.95Ferro-oxide

0.7 to 0.8

on the display. To set the alarm value;

Entry Key

Wood

0.98

Painted surface

0.8① Press MEASURE key to turn on the instrument.

Registers set values andswitches
theinstrument
setting mode.

Paper

0.92

Tile

0.8

③ Press MODE key. 1.00 or the value set previously is shown on thedisplay, with the least significant digit blinking.
Press ▲ or ▼ key to change the blinking
number and press ENT key. Repeat the same stepon the other digits.
④ Press MODE key to switch the instrument to measuring mode.

(2) AlarmIf readings exceed a certain value, the beeper sounds and ALARM blinks② While pressing ENT key, push MODE key.

Selects DARK, BRIGHT or
FREE, and sets emissivity andalarm value.

Emissivity
0.95

699 or the value set previously is shown on theEstimating emissivity using the Black Body Tapedisplay, with the least significant digit blinking.

Place a piece of the black body tape (emissivity: 0.94) on an object. Set emissivity to③ Press ▲ and ▼ key to change the blinking

0.94 in FREE mode and measure the temperature of the object. Then remove the tapenumber and press ENT key. Repeat the same step on

from the object. Measure its temperature again and adjust emissivity value so thatthe other digits.

readings match the temperature measured with the black body tape attached on theTo set 2-digit value, display “0” on the most significant digit.

object. The adjusted value is the emissivity of the object. The black body tape is

To set a negative value, display ”－”on the most significant digit.

available as an option.

④ Press MODE key to switch the instrument to measuring mode.