Comark KM814FS Manuel d'utilisateur télécharger pdf

HOW TO MEASURE TEMPERATURE

ACCURATELY

LOCATING A HOT SPOT

To nd a hot spot aim the thermometer outside the area of interest,

then scan across with an up and down motion until you locate the

hot spot.

FIELD OF VIEW

Make sure that the target is larger than the unit’s spot size. The

smaller the target, the closer you should be to it. When accuracy is

critical, make sure the target is at least twice as large as the spot

size.

DISTANCE & SPOT SIZE

As the distance from the object increases, the spot size of the area

measured by the unit becomes larger.

REMINDERS

• Not recommended for use in measuring shiny or polished metal

surfaces (stainless steel, aluminium, etc.).

See Emissivity.

• The unit cannot measure through transparent surfaces such

as glass. It will measure the surface temperature of the glass

instead.

• Steam, dust, smoke, etc., can prevent accurate measurement

by obstructing the units optics.

CE CERTIFICATION

This instrument conforms to the following standards:

• EN50081-1:1992, Electromagnetic Emissions

• EN50082-1:1992, Electromagnetic Susceptibility

Tests were conducted using a frequency range of 27–500 MHz with

the instrument in three orientations. The average error for the three

orientations is ±4.8°C (±8.6°F) at 3 V/m throughout the spectrum.

However, between 190 MHz and 500 MHz at 3 V/m, the instrument

may not meet its stated accuracy.

WARRANTY

All Comark instruments have a minimum one year warranty unless

otherwise stated. The warranty period for temperature probes is for

six months and all other probes and electrodes are unwarranted

because the conditions of use are beyond our control.

The Comark warranty covers manufacturing defects and component

failure and applies worldwide. The warranty does not affect your

statutory rights. In line with our policy of continuous development

we reserve the right to alter any product specications

without notice.

Comark Instruments,

52 Hurricane Way,

Norwich, Norfolk

NR6 6JB

United Kingdom

Tel: +44 844 815 6599

Fax: +44 844 815 6598

Email: [email protected]

EMISSIVITY

Most organic materials and painted or oxidized surfaces have an

emissivity of 0.95 (pre-set in the unit) NOTE: KM814FS pre-set

at 0.97. Inaccurate readings will result from measuring shiny or

polished metal surfaces. To compensate, cover the surface to be

measured with masking tape or matt black paint. Allow time for the

tape to reach the same temperature as the the material underneath

it. Measure the temperature of the tape or painted surface.

MAINTENANCE

Lens Cleaning: Blow off loose particles using clean compressed

air. Gently brush remaining debris away with a camel hair brush.

Carefully wipe the surface with a moist cotton swab. The swab

may be moistened with water.

NOTE: DO NOT use solvents to clean the plastic lens.

Case Cleaning: Use soap and water on a damp sponge or soft cloth.

NOTE: DO NOT submerge the unit in water

TROUBLESHOOTING

CODE PROBLEM ACTION

– – – (on display) Target temperature

is over or under range

Select target

within

specications

Battery icon appears Possible low battery Check and/or

replace battery

Blank display Possible dead battery Check and/or

replace battery

Laser doesn’t work Low or dead battery Replace battery

HOW TO OPERATE THE UNIT

°C/°F AND BATTERY

Pull open the unit’s handle using the nger indents near the trigger

to access the C/F switch or to insert/remove the battery. To toggle

between °C and °F, push the switch (see g 1). Insert the 9v battery

positive side rst into the battery compartment. NOTE: The battery

door is detachable.

OPERATING THE UNIT

To measure a temperature, point unit at object and pull the trigger.

Be sure to consider distance-to-spot size ratio and eld of view. If the

unit is equipped with a laser, use the laser only for aiming. See How

to Accurately Measure Temperatures.

DISPLAY

The backlit LCD displays the current temperature in Celsius or

Fahrenheit. The unit will hold the reading for 7 seconds after trigger

is released; the word HOLD appears. The presence of the battery

icon indicates a low battery.

WARNING

(units with laser sighting)

DO NOT POINT LASER DIRECTLY AT EYE OR

INDIRECTLY OFF REFLECTIVE SURFACES.

CAUTIONS

ALL MODELS SHOULD BE PROTECTED FROM THE

FOLLOWING,

• EMF (electro-magnetic elds) from arc welders, induction

heaters

• Static electricity

• Thermal shock (caused by large or abrupt ambient

temperature changes—allow 30 minutes for unit to stabilize

before use)

• Do not leave the unit on or near objects of high temperature

INTRODUCTION

We are condent you will nd many uses for your handheld

noncontact thermometer. Compact, rugged, and easy to use—

just aim, pull the trigger, and read current surface temperatures

in less than a second.

You can safely measure surface temperatures of hot, hazardous,

or hard-to-reach objects without contact.

HOW IT WORKS

Infrared thermometers measure the surface temperature of an

object. The units optics sense emitted, reected, and transmitted

energy, which is collected and focused onto a detector. The units

electronics translate the information into a temperature reading

which is displayed on the unit. In units with a laser, the laser is used

for aiming purposes only.

SPECIFICATIONS

Temperature Range

KM812 and KM814

KM814FS

-18°C to +260°C (0°F to +500°F)

-30°C to +200°C (-25°F to +400°F)

Temperature display 0.5°C or 1.0°F

Accuracy

(assumes ambient

operating temperature

of 23°C [73°F])

KM812/KM814 for targets at:

-1°C to +260°C (+30°F to +500°F):

±2% of reading or ±2°C (±3.5°F),

whichever is greater

-18°C to -1°C (0°F to +30°F) ±3°C (±5°F)

KM814FS for targets at:

0°C to 65°C (+32°F to +150°F):±1°C (±2°F)

below 0°C (+32°F): ±1°C +0.1°C/°C (±2°F

+0.2°F/°F)

above +65°C (+150°F): 1.5% of reading

Response time 500 mSec, 95% response

Spectral response

KM812/KM814

KM814FS

7–18 μm

8–14 μm

Emissivity

KM812/KM814

KM814FS

pre-set 0.95

pre-set 0.97

Ambient operating range 0°C to +50°C (+32°F to +120°F)

Relative humidity 10–95% RH noncondensing,

@ up to +30°C (+86°F)

Storage temperature +20°C to +65°C (-4°F to +150°F)

without battery

Weight / dimensions 227 g (0.5 lb); 152 x 101 x 38 mm

(6 x 4 x 1.5 in)

Power 9V Alkaline battery

Typical battery life

(Alkaline)

Non-laser models: 22 hrs

Laser Models: 12 hrs

Distance to spot size

KM812/KM814

KM814FS

6:1

4:1

Specications subject to change without notice.

KM812, KM814 AND KM814FS

INFRATRACE COMPACT

NONCONTACT THERMOMETERS

5432

876

17241/8 (11/12)

www.comarkinstruments.com

Résumé du contenu

Page 1 - SPECIFICATIONS

HOW TO MEASURE TEMPERATURE ACCURATELYLOCATING A HOT SPOTTo nd a hot spot aim the thermometer outside the area of interest, then scan across with an u

Modèles reliés KM812 | KM814 |

Commentaires sur ces manuels

Pas de commentaire

Comark KM814FS Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Thermomètres Comark KM814FS. Comark KM814FS User Manual Manuel d'utilisatio

Résumé du contenu

Modèles reliés KM812 | KM814 |

Commentaires sur ces manuels

Produits connexes et manuels pour Thermomètres Comark KM814FS