background image

such as glass. It will measure the surface temperature of 

ent accurate 

ng the unit’s optics. 

z

 

ribe the 

asure the temperature of the tape or 

ainted surface. 

the glass instead. 

   

③  

Steam, dust, smoke, etc., Can prev

measurement by obstructi

Emissivity 

Emissivity is a term used to desc

energy-emitting characteristics of materials. 

Most (90% of typical applications) organic materials 

and painted or oxidized surfaces have an emissivity of 

0.95 (pre-set in the unit). Inaccurate readings will result 

from measuring shiny or polished metal surfaces. To 

compensate, cove the surface to be measured with 

masking tape or flat black paint. Allow time for the tape 

to reach the same temperature as the material 

underneath it. Me

p

 

 

 

 

 

 

         

14

Summary of Contents for DT-8861

Page 1: ...Non Contact Infrared Thermometers Operating Manual 3p 04 07 61...

Page 2: ...TS INTRODUCTION 3 FEATURES 3 WIDERANGEAPPLICATION 4 SAFETY 4 DISTANCE SPOTSIZE 5 SPECIFICATIONS 6 FRONTPANELDESCRIPTION 8 INDICATOR 8 BUTTONS 9 MEASURMENTOPERATION 10 BATTERYREPLACEMENT 13 NOTES 13 MA...

Page 3: ...rs can be used to measure the temperature of objects surface that is improper to be measured by traditional contact thermometer such as moving object the surface with electricity current or the object...

Page 4: ...tors Plastic molding Asphalt Marine and Screen printing measure ink and Dryer temperature HVAC R Diesel and Fleet maintenance SAFETY z Use extreme caution when the laser beam is turned on z Do not let...

Page 5: ...nship between distance and spot size for each unit is listed below The focal point for each unit is 914mm 36 The spot sizes indicate 90 encircled energy D S 12 1 D S 12in 1in 6in 0 5in 25mm 300mm 150m...

Page 6: ...se 8 14um Emissivity Digitally adjustable from 0 10 to 1 0 Over range indication LCD will show Polarity Automatic no indication for positive polarity Minus sign for negative polarity Diode laser outpu...

Page 7: ...rget 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 2 FRONT PANEL DESCRIPTION IR sensor LCD Display Laser pointer beam up but...

Page 8: ...button for EMS HAL LAL MODE button for cycling through the mode loop Functional Design 1 the switches of C F sat in a cell switching 2 In the measuring time up down keys to adjust the Emissivity 3 IN...

Page 9: ...ent LOW on off LOW adjustment Each time you press set you advance through the mode cycle The diagram shows the sequence of functions in the mode cycle EMS adjustment The Emissivity EMS digitally adjus...

Page 10: ...le the Emissivity HAL LOW on off Press the up button or down button to turn on or turn off Press the Measurement Trigger to confirm the High Low alarm mode Hal LOW adjustment The high Low alarm adjust...

Page 11: ...on the LCD indicating that the reading is being held In HOLD status press the UP button to turn on or off the laser And p turn on or off the backlight The meter will automatically power down after ap...

Page 12: ...z temperature measurements are made This is a result of the co p BATTERY REPLACEMENT As battery power is not sufficient LCD will display replacement with one new required Open battery cover then take...

Page 13: ...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 su least twice as large as th Distance Spot Size As t...

Page 14: ...a term used to desc energy emitting characteristics of materials Most 90 of typical applications organic materials and painted or oxidized surfaces have an emissivity of 0 95 pre set in the unit Inac...

Page 15: ...96 Charcoal powder Earth 0 92 to 0 96 Lacquer o 0 95 0 80 t Water 0 92 to 0 96 r 0 97 Lacque matt Ice 0 96 to 0 98 0 94 Rubber black Snow 0 83 Plastic 0 85 to 0 95 Glass 0 90 to 0 95 Timber 0 90 Ceram...

Page 16: ...not use ified parts 7 MAINTENANCE z Repairs or service are not covered in this manual and should only technician z Periodically wipe the body with a dry cloth abrasives or solvents on this instrument...

Reviews: