background image

2                                     42520es       Ver. 1.7    8/00

 

3. SPECIFICATIONS 

3.1 General Specifications 

Display 

 

Backlit LCD display 

Measurement Ranges

 

0 to 600

o

F (-20 to 320

o

C) 

Sample rate

 

1 sec. approx.

 

Power  off

 

Automatic shutoff after 5 seconds

 

Operating  Temperature 

 

0 °C to 50 °C (32 °F to 122 °F).

 

Operating Humidity

 

Max. 80% RH.

 

Power Supply

 

9V battery

 

Power Current

 

Approx. 12 mA DC

 

Weight      

 

200 g / 6.4 oz.

 

Size       

 

6.7 x 1.7 x 1.6” (170 x 44 x 40 mm)

 

3.2 Range Specifications 

Resolution/Ranges  1

o

C/F 

0 to 600

o

F (-20 to 315

o

C) 

Accuracy 

± 2% rdg or 4

o

F/2

o

C whichever is greater 

Accuracy notes

 

1. Accuracy specified for ambient temperature 

2. Accuracy specified for emissivity of 0.95 

Emissivity settings

 

0.95 fixed 

Distance Factor

 

D/S = Approx. 6:1 (D=distance, S=spot) 

Measurement Field 

and Target Size

 

Refer to Chart on top of meter or Fig. 2 in Section 6.1

 

  

 

 

 

 

 

 

4. FRONT PANEL DESCRIPTION  

 

Laser pointer beam 

IR sensor 

LCD Display 

Units select key 

Backlight select key 

Measure key 

Laser key 

Battery compartment 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for 42520

Page 1: ...purchase of Extech s 42520 IR Thermometer This professional meter with proper care will provide years of safe reliable service 2 SAFETY Use extreme caution when the laser beam is ON Do not let the beam enter your eye another person s eye or the eye of an animal Be careful not to let the beam from a reflective surface strike your eye Do not use the laser near explosive gases or in other potentially...

Page 2: ... 6 170 x 44 x 40 mm 3 2 Range Specifications Resolution Ranges 1o C F 0 to 600o F 20 to 315o C Accuracy 2 rdg or 4o F 2o C whichever is greater Accuracy notes 1 Accuracy specified for ambient temperature 2 Accuracy specified for emissivity of 0 95 Emissivity settings 0 95 fixed Distance Factor D S Approx 6 1 D distance S spot Measurement Field and Target Size Refer to Chart on top of meter or Fig ...

Page 3: ...old the ON HOLD key and then press the BACKLITE key Repeat this procedure to turn the backlight OFF 5 6 Laser Pointer To turn the laser pointer ON press the LASER key while pressing and holding the ON HOLD key Repeat the procedure to turn the laser OFF 5 7 Measurement Considerations a Holding the meter by its handle point the IR Sensor toward the object under test b The object under test should be...

Page 4: ...ll For periodic calibration NIST certification or repair of any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity 9 WARRANTY EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limit...

Reviews: