Hand-held
Infrared Radiation
Thermometer
IRT-100-TFs■Safety Precautions●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.
●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.

■Relation of Distance andMeasuring Diameter
The figure below shows the required minimum area (optical sensitivity: 90%) on anobject under test at a distance of 500mm and 1000mm.
The measured area increases with distance.
When measuring, the distance should be as short as possible.

●Be sure not to use the thermometer when the measuring window has beenbroken or cracked, as the user may be injured by shards.

■Maintenance
Measuring Window
Dust, stains and flaws on the measuring window cause inaccurate readings.
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.

●Always put the cap back on the measuring window after measurement toprevent foreign objects from penetrating the window.

Other Parts of the Instrument

Instruction Manual

Clean the instrument with a dry cloth. To remove tough stains, use a damp clothfrom which water-diluted neutral detergent has been rinsed out. Use of paint

Read this manual before using the instrument.

thinner, benzine, alcohol and other chemicals may blur the display window, erase

SHINKO TECHNOS CO., LTD.

markings or cause the enclosures to crack. It is preferable to keep the instrument●In order to protect the optical system of the instrument, do not subject thein the carrying case.

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

CE Marking: Conforms to EMC directive(89/336/EEC, 92/31/EEC
amendment,93/68/EEC amendment)
EN55011 Group 1, Class B, EN50082-1●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.

■Specifications
Measuring range
Detecting element
Measuring wavelength
Measuring diameter
Measuring accuracy

Repeatability
Response time
Display indications
Auto power off
Emissivity correction
Display illumination
Operating temperature
Storage temperature
Ambient humidity
Power source
Battery life
Dimension
WeightAccessories-30 to 350℃
Thermopile
6.5 μm
φ45/500mm (Optical sensitivity: 90%)
Within ±1% of measured value or within ±2℃,
whichever is greater. However, –30 to 0℃:
Ｗｉｔｈｉｎ±3℃ (at 25℃ ambient temperature)

Within ±1℃
0.8 seconds (90% response)
Current reading, Maximum reading, Minimum
reading, Reading hold, Emissivity, Low battery
Automatically shuts power off in 30 seconds
after Reading holdSelectable from DARK (0.95), BRIGHT (0.80),
STD (1.00)
Automatic back-light
0 to 50℃-20 to 55℃
90%RH or less (No condensation)
Alkaline battery, AA (UM-3) type, 2 pieces
Approx. 70 hours for continuous measurement
81 (W) x 142 (H) x 32 (D) mm
Approx. 160g
Alkaline battery AA (UM-3) type, 2 pieces
Instruction manual, 1 copyＶｉｎｙｌ case, 1 piece■Troubleshooting
Symptoms

CausesCountermeasures

No display appears.

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

Replace or insert them correctly.

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” section.

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 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,

Abnormal reading.

there are greasy fumes or corrosive gasses,
as the measuring window may become deteriorated or soiled, causing
inaccurate readings.

●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.

Reading is blinking.

SHINKO TECHNOS CO.,LTD.
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
URLTel : 81-727-21-2781: overseas@shinko-technos.co.jp
E-mailFax: 81-727-24-1760

No.IRTTF11E1 2001.12

BatteryMeasurement Display(1) Installing Batteries

While pressing MEASURE key, measurement is done continuously. MEAS
is shown on the display to indicate that the instrument is in measuringmode. Release MEASURE key to stop measurement. The display reading
is automatically frozen, with HOLD shown on the display.

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 thedisplay or the display blinks.
NoteAlways replace both batteries.

Emissivity
DARK :0.95
BRIGHT:0.80
STD :1.00

MAX ： Displayed when themaximum reading isshown
MIN ： Displayed when theminimum reading isshown

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.
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.

Low Battery Symbol
Blinks when batteries wearout.

Displays temperature
readings and emissivity value

Displayed when temperature
readings are shown
Displayed when emissivity
value is shown

MEAS：Displayed during measurement
HOLD：Displayed during hold mode

Display

Settings
Emissivity
Emissivity of an object under test can be selected from DARK (0.95),

Measure Key

BRIGHT (0.80) or STD (1:00).

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

When the instrument is turned on, emissivity is set to DARK (0.95). A
bar appears under DARK, BRIGHT or STD on the display to indicate
which one is selected. Press ε key to change selection.

■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-TF. Infrared radiation depends on

Mode Key

materials, condition of the surface and ambient temperature.

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

Material
Water, Ice

Emissivity
0.98

ε Key

Soil

0.92 to 0.96

Material
Cloth, Fabric(colored)
Leather, Fur

Concrete (wet)0.96 to 0.98

Human skin

0.99

Concrete (dry)0.91 to 0.95

Vegetable, Fruit

0.98

Ceramic

0.85 to 0.95

Dough

0.98

Plaster, asbestos

0.92

Meat0.98

Plastic0.90 to 0.95

Copper oxide

0.5 to 0.6

Rubber (black)

0.95

Ferro-oxide

0.7 to 0.8

Wood0.98

Painted surface

0.8

Paper

0.92

Tile

0.8

Selects DARK, BRIGHT orSTD

Emissivity
0.95
0.96