La Crosse Technology INFRASCAN IR 101 Manual de usuario

IR 101

InfraScan

Infrared Thermometer

Instruction Manual

TABLE OF CONTENTS

Page

General

Quick instructions 3

Equipment Supplied 3

Description of Measuring Principle 3

Operation

Display and Operator Controls 4

Making a Measurement 4

Minimum and Maximum Temperature

Indication

Changing the Temperature Units 5

Back Light 5

Measurement Inaccuracies 5-6

Trouble Shooting 6

Maintenance

Changing the Batteries 7

Cleaning 7

Fastening the Infrared Thermometer 7

Technical Information 8-9

Warranty Information 10

General

1. Quick Instructions

Press and hold the operating button for more than 1.5 seconds. The

temperature of the surface the lens is aimed at will read on the top of the

display. The minimum and maximum temperatures of the current

measurement are shown on the bottom of the display. When the operating

button is released “Hold” will be displayed between “min” and “max”

indicating the measurement is completed. After 4 seconds the backlight

will turn off. The unit will switch off after 8 seconds. Press and hold the

operating button again to begin a new measurement. To switch between °F

and °C simply “double click” the operating button.

2. Equipment Supplied

a. Infrared Thermometer base unit

b. 4 button cell batteries (already in unit)

c. Neck strap

d. Soft sided case

3. Description of measuring principle

When making a temperature measurement, the surface radiation of the

object to be measured is evaluated using the principle of radiation

thermometry. This is a purely passive process, i.e. no radiation is

transmitted, but instead, use is only made of the natural electromagnetic

radiation energy (heat radiation) that every body above a temperature of

absolute zero (-273 °C) has. The temperature can be determined very

accurately from this radiation energy if the emission factor of the object

being measured is known.

Operation

1. Display and operator controls

All of the functions of the measuring unit are controlled and monitored using

the operating button (7) and the back lit display.

a. Temperature display - currently measured value 7

b. Hold indicator 1

c. Temperature display - minimum value 6

d. Temperature display - maximum value 5

e. Battery symbol – low battery indicator

f. Temperature units – °F or °C 4

g. Operating Button

h. Lens

2. Making a measurement

The object being measured should be a minimum of twice the size of the

infrared thermometer’s lens. The ideal measuring distance is 3 to 12 inches,

which will yield a measurement area of ½ inch to 2 inches. As the infrared

thermometer is moved away from the object being measured the area being

measured increases (6:1 ratio).

The infrared thermometer is switched on by holding the operating button down

for 1.5 seconds or more. By continuously holding down the operating button

the measured value will be updated as long as the operating button is pressed.

Releasing the operating button will finish the measurement. The “Hold”

indication signals that measuring has stopped. The backlight will shut off 4

seconds after the operating button is released. The infrared thermometer will

automatically switch off 8 seconds after the last measurement. Holding down

the operating button again will clear the minimum and maximum memory and

begin a new measurement.

3. Minimum and maximum temperature indication

The minimum and maximum value memories are cleared at the start of a

measurement by pressing the operating button. The temperature will be

measured and the minimum and maximum temperatures will be determined for

as long as the button is pressed. The minimum temperature is shown in the

lower left-hand part of the display and the maximum temperature can be seen in

the lower right hand part. These values each apply to the current measuring

cycle and are cleared as soon as the button is pressed again.

4. Changing the temperature units ( °F/°C )

The units for the temperature display can be switched between degrees Celsius

(°C) and degrees Fahrenheit (°F) by pressing the button briefly twice (double

click).

5. Back light

The LCD back light is constantly switched ON while the operating button is

pressed. When the operating button is released, the backlight will be ON for

approximately 4 seconds before automatically switching off 8 seconds after the

last measurement.

6. Measurement inaccuracies

The following points should be observed in order to avoid measurement errors:

a. It must be ensured that the object to be measured completely fills the

Infrared Thermometer monitoring area. Errors can occur when

measuring small objects, as the unit also monitors the temperature of

the surroundings as well as the object to be measured.

b. The principle of measurement requires the ambient temperature to be

determined. This takes place at one-minute intervals or each time the

unit is switched on. Changes in the ambient temperature, which can

occur when the user holds the unit in their hand, are not monitored

within this time period and therefore neither of them is taken into

account when determining the indicated temperature. A gradual

warming of the unit (the lens) between ambient temperature

measurements can, for example, lead to the indicated temperature

slowly falling.

c. If the emission factor for the object does not correspond to the preset

value of 0.95, the temperature will not be calculated correctly. Most

surfaces have an emission factor in the range of 0.8 to 0.98. In general,

the darker and more matte the surface is, the larger their emissions

factor. If the factor is greater the 0.95, the temperature indicated will

be greater than the actual temperature of the object being measured. If

the factor is less then 0.9, the temperature indicated will be less than

the surface temperature. Polished metals have a very low emission

factor and are therefore not suitable for measuring with an infrared

thermometer. On the other hand, affixing adhesive tape to or painting

the surface will increase the emission factor and reduce the inaccuracy

of the measurement.

d. It is not possible to take measurements through transparent materials

(glass, plexiglas, etc.).

e. It is not possible to measure air temperatures.

f. Measurement errors can occur due to air contaminated with dust,

steam, smoke, etc.

7. TROUBLESHOOTING

Problem: Display shows -.-

Solution: The operating button has not been pressed for long enough. This must be

pressed for at least the duration of one measurement, i.e. for at least 1.5

seconds.

Problem: Display shows Err 1

Solution: The ambient temperature is outside the permitted range

Problem: Display shows 1

Solution: The measured value is outside the permitted range.

Problem: Battery symbol illuminates

Solution: The batteries are dead.

NOTE: For problems not solved, please contact La Crosse Technology.

Maintenance

1. Changing the batteries

If the battery symbol appears in the display, the batteries must be changed. The

four button cells are accessible after opening the battery compartment at the rear

of the unit. The used batteries must be removed from the battery holders and

replaced by new button cells of the same type. Only LR44 type batteries may be

used. Care must be taken to ensure that the polarity is correct when inserting.

The plus terminal of all four batteries should point upwards. The batteries must

be checked to see that they are properly seated before closing the battery

compartment.

2. Cleaning

Clean the unit using only a dry cloth. If the unit is very dirty, the cloth may be

slightly dampened. Do not use cleaners containing solvents. Make sure that no

moisture enters the interior of the unit. When cleaning the lens, loose particles

must be removed using compressed air. Any remaining dirt can then be

removed with a soft brush or with a cotton swab moistened with water.

CAUTION Do not use cleaners containing solvents.

Fastening the Infrared Thermometer

A soft-sided pouch with a belt loop and a quick release neck strap are included with

the infrared thermometer. To attach the infrared thermometer to the neck strap

simply insert the clip of the neck strap into the buckle end of the thermometer until it

clicks. To release, press both sides of the clip on the neck strap and pull the buckle

end until it is free.

Technical Information

1. Accuracy: The larger of the two values given is applicable in each case.

2. Distance to measuring spot size: The parameter D : S characterizes the size

of the measuring spot in proportion to the distance between the object to be

measured and the Infrared Thermometer. For example, with a ratio of 6 : 1

and a distance of 12 inches, the monitoring area will have a diameter of 2

inches.

Range :-5°F to 575°F

Resolution : 0.1 °F

Accuracy : ±1°F

Unit : °F or °C

Distance to measuring spot size D:S : 6:1

Ambient temperature range : 32°F to 104°F

Emission factor : 0.95

Power supply : 4 x LR44

button cell

batteries

Battery life (approx.) : 2000 measurements

(depending on the

usage)

Dimensions (L”xW”xH”) : 2.25” x 1” x 4”

3. Emissions factor: The physical quantity known as the emission factor

describes to what extent the infrared heat radiation that is emitted from an

object is determined by its own temperature. Accordingly, a value of 1 tells

us that the infrared heat radiation from the object is based only on its own

temperature. A value of less than 1 means that the radiation emitted from

the object is not only determined by its own temperature but also by

reflections from neighboring bodies or due to the transmission, i.e. the

diathermancy, of the object. The emission factor thus has an effect on the

result of the measurement. The Infrared Thermometer works with an

emission factor of 0.95, i.e. the measuring unit assumes that the object

being monitored has a factor of 0.95. If this is not the case, there will be

inaccuracies in the measurement (see Section 2.6 “Measurement

Inaccuracies”).

WARRANTY INFORMATION

La Crosse Technology provides a 1-year warranty on this infrared thermometer.

Contact La Crosse Technology immediately upon discovery of any defects covered

by this warranty.

Before sending the infrared thermometer in for repairs, contact La Crosse

Technology. The infrared thermometer will be repaired or replaced with the same or

similar model.

This warranty does not cover any defects resulting from improper use, unauthorized

repairs or faulty batteries.

LA CROSSE TECHNOLOGY WILL NOT ASSUME LIABILITY FOR

INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR OTHER SIMILAR

DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION OF

THIS INFRARED THERMOMETER. THIS PRODUCT IS NOT TO BE USED

FOR MEDICAL PURPOSES OR FOR PUBLIC INFORMATION. THIS

PRODUCT IS NOT A TOY. KEEP OUT OF CHILDRENS’ REACH.

This warranty gives you specific legal rights. You may also have other rights

specific to your State. Some States do no allow the exclusion of consequential or

incidental damages therefore the above exclusion of limitation may not apply to you.

For warranty work, technical support, or information contact

La Crosse Technology

1116 South Oak Street

La Crescent, MN 55947

Phone: 507.895.7095

Fax: 507.895.8000

e-mail: support@lacrossetechnology.com

web: www.lacrossetechnology.com

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