Omega OS641C-MV-LS Manuale utente
OS641C-MV-LS
Infrared Temperature Transducer
With Laser Marker
OMEGA
OMEGAnetSM On-Line Service
http://www.omega.com
Internet e-mail
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SM
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Servicing North America:
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6311114
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Toll Free in England: 0800-488-488
e-mail: [email protected]
omega.com
TM
INTRODUCTION
Thisinstrumentisaportableeasyusecompact-sizeddigitalinfraredtempera-
ture transducer with laser marker designed for simple one hand operation.
SAFETY INFORMATION
It is recommended that you read the safety and operation instructions before
using the infrared thermometer.
The symbol on the instrument indicates that the operator must refer to an
explanation in this manual.
1
DANGER
Pressing the button turns the laser marker on and off. Exercise extreme care and do
not allow the laser beam to enter your eye or those of any other person or animal.
• Do not look directly into the laser light from the optical system.
• Whenmeasuringthetemperatureofanobjectwhichhasamirrorfinish,becarefulnot
to allow the laser light beam to be reflected off the surface into your eyes or those of
anotherperson.
• Do not allow the laser light beam to impinge upon any gas which can explode.
2
CAUTION
• Donotusetheunit nearanydevicewhichgeneratesstrongelectromagneticradiation
or near a static electrical charge, as these may cause errors.
• Donotusetheunitwhereitmaybeexposedtocorrosiveorexplosivegases.Theunit
may be damaged, or explosion may occur.
• Do not keep or use this unit in an environment where it will be directly illuminated by
sunshine, or where it will be exposed to high temperatures, high humidity or conden-
sation.Ifyoudo,itmaybedeformed,itsinsulationmaybedamaged,oritmaynolonger
function according to specification.
• Donotpointthelensatthesunoratanyothersourceofstronglight.Ifyou do,thesensor
may be damaged.
• Donotcontactthelensagainsttheobjectwhosetemperatureistobemeasured,orget
it dirty, allow it to be scratched, or allow any foreign material to adhere to it. Doing so
may cause errors.
• Do not touch or hold by the front cone. Temperature reading can be affected by heat
fromhand.
• Do not place the meter on or around hot objects (70°C/158°F). It may cause damage
to the case.
• Ifthemeterisexposedtosignificantchangesinambienttemperature(hottocoldorcold
to hot). Allow 20 minutes for temperature stabilization, before taking measurement.
• Condensationmayformonthelenswhengoingfromacoldtohotenvironment-wait10
minutes for conden sation to dissipate before taking measurements.
• Thisunitisnotconstructedtobewaterproofordustproof,sodonotuseitinaverydusty
environment or in one where it will get wet.
SPECIFICATIONS
GENERAL
Low battery indication: the "Red LED " is displayed when the battery voltage
drops below the operating level.
Operating Environment: 0°C to 50°C at < 70% relative humidity.
Storage Temperature: -20°C to 60°C, 0 to 80% R.H. with battery removed from
meter.
Battery: 4 pcs 1.5V (AAA size).
Battery Life: 100 hours (continuity) typical (Laser marker not illuminated).
Dimensions: 170mm(H) x 44mm(W) x 40mm(D).
Weight: 200g including batteries.
3
4
ELECTRICAL
Temperature Range: -20°C to 260°C.
Analog Output: 1mV/°C.
Accuracy: ±3% of reading or ±3°C, whichever is greater @ 18 to 28°C ambient
operating temperature.
Temperature Coefficent: ±0.2% of reading or ±0.2°C, whichever is greater,
change in accuracy per °C change in ambient operating temperature above
28°C or below 18°C.
Response Time: 1 second.
Spectral Response: 6 to 14µm nominal.
Emissivity: Pre-set 0.95.
Detection Element: Thermopile.
Optical Lens: Fresnal Lens.
Sighting: 1-beam laser marker <1mW(class 2).
Field of View: 65mmØ at 1000mm.
5
Spot size increases with distance from the probe tip as shown
CAUTION: Use of controls or Adjustments
or performance of Procedures other than
those Specified herein may result in
Hazardous radiation exposure.
Aperture Label (on front):
Danger, Certification & ID Label:
(Located on back of unit)
6
OPERATING INSTRUCTIONS
Push buttons
Laser Marker Button
Release MEAS button then press " " button to toggle between turn on and turn
off the Laser Marker annunciator, If " " annunciator turn on, press MEAS button
the laser marker beam is being emitted, releasing MEAS button turn off the laser
marker beam.
MEAS (MEASURE) Button
Depress MEAS button to turn on the meter for temperature measurement.
Release the MEAS button to stop temperature measurement.
7
OPERATION
1.Plugtheinfraredtemperature transducer test leads into the Vdc input jack and
common or ground input jack on the DMM. Observe polarity.
2. Set the DMM to the 2V range only, ignore the decimal point.
3. Use " " button to select turn on or turn off the Laser Marker.
4. Point the lens at the object whose temperature is to be measured.
5. Press the MEAS button. Measurement is performed as long as the MEAS
button is kept pressed.
6. Referring to the spot size figure, aim the laser beam at the object whose
temperature is to be measured.
NOTE: Although the field of measurement (or Field of View) and the spot almost
coincide, actually the field of measurement corresponds to the diameter for
90%opticalresponse.Theobjectwhosetemperatureistobemeasuredneeds
to be larger than the measurement diameter (spot of size) by an adequate
margin at least 1.5 to 2 times larger.
7. Read the DMM diaplay.
8
MEASUREMENT CONSIDERATIONS
1. Theory of Measurement
Every object emits infrared energy in accordance with its temperature. By
mesuring the amount of this radiant energy, it is possible to determine the
temperature of the emitting object.
2. About Infrared
Infrared radiation is a form of light (electromagnectic radiation), and has the
property that it, passes easily through air while it is easily absorbed by solid
matter. With an emission thermometer which operates by detecting infrared
radiation accurate measurement is possible, irrespective of the air tempera-
ture or the measrement distance.
3. Emission Thermometer Structure
Infrared radiation which has been emitted from the object is focused upon an
infrared radiation sensor, via an optical system which includes a lens is
transparent to infrared rediation, an 5.3µm cut off filter. The output signal from
the infrared radiation sensor is input to an electronic circuit along with the
output signal from a standard tempeature sensor (Thermopile).
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