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We recommend to use it only in certain situations, because the 
battery will discharge faster than with normal use. 

OVER-RANGE INDICATION

If the measured temperature  exceed the maximum or minimum 
temperature range, the meter will display dashes in place of a 
temperature reading.

MODE BUTTON

This button allows you to choose between 4 different functions, 
while testing.

You can choose between these options:

 Average

 

In the AVG mode, all of the readings in the current 

 

measurement session are averaged and the value is  

 

 displayed.

 Max

 

In the MAX mode, only the highest reading encountered   

 

in the current measurement session is displayed

 Min

 

In the MIN mode, only the lowest reading is displayed

 Max-Min

 

In the DIF mode, the MAX less the MIN is displayed.

FIELD OF VIEW

The meter’s 

fi

 eld of view is 12:1. For example, if the meter is 12 

inches from the target, the diameter of the target must be at least 
1 inch. Other distances are shown in the 

fi

 eld of view diagram. 

Note that measurements should normally be made as close as 
possible to the device under test. The meter can measure from 
moderate distances but the measurement may be affected by 
external sources of light.

ENGLISH

ENGLISH-5

Summary of Contents for HER-420

Page 1: ......

Page 2: ...tion Before measuring be sure to clean surfaces that are covered with frost oil grime etc If an object s surface is highly reflective apply masking tape or flat black paint to the surface before measu...

Page 3: ...BATTERY PLACEMENT This meter uses a 9V battery make sure to install before to use it 1 Open the battery compartment 1 2 3 4 5 6 7 8 9 10 ENGLISH ENGLISH 3...

Page 4: ...e reading will hold for approximately 7 seconds letter H will appear on the LCD After this time the meter will automatically shut off 4 If you want to select a temperature unit F C press the Temperatu...

Page 5: ...veraged and the value is displayed Max In the MAX mode only the highest reading encountered in the current measurement session is displayed Min In the MIN mode only the lowest reading is displayed Max...

Page 6: ...ime of response 520ms Laser power 1mW Wave length 630 670nm Weight 258 6g Dimensions 20x13x5 5cm Product design and specifications are subject to change without notice Product design and specification...

Page 7: ......

Page 8: ...r las superficies que est n cubiertas por hielo aceite suciedad etc Si la superficie de un objeto tiene alta reflexi n aplique masking tape o una capa de pintura negra antes de realizar una medici n D...

Page 9: ...COLOCACI N DE BATER A Este equipo utiliza una bater a de 9V aseg rese de instalarla antes de comenzar a utilizarlo 1 Abra el compartimiento de bater as 1 2 3 4 5 6 7 8 9 10 ESPA OL ESPA OL 3...

Page 10: ...la pantalla de LCD 3 Suelte el interruptor de medici n la ltima lectura permanecer en pantalla por aproximadamente 7 segundos la letra H aparecer en la pantalla Despu s de este tiempo el term metro s...

Page 11: ...OT N DE MODO El bot n de modo le permite elegir entre diferentes funciones al momento de realizar mediciones de temperatura Podr elegir entre las siguientes opciones Promedio AVG En pantalla se mostra...

Page 12: ...e luz ESPECIFICACIONES Entrada 9V 1 x 9V Rango 20 a 537 C Emisividad 0 95 Precisi n de lectura 1 Tiempo de respuesta 520ms Potencia de l ser 1mW Longitud de onda 630 670nm Peso 258 6g Dimensiones 20x1...

Page 13: ...the addresses mentioned later THIS WARRANTY IS VOID IN THE NEXT CASES If the product has been damaged by an accident acts of God mishandling leaky batteries failure to follow enclosed instructions im...

Page 14: ...arant a ante la propia casa comercial donde adquiri el producto Si la presente garant a se extraviara el consumidor puede recurrir a su proveedor para que le expida otra p liza de garant a previa pres...

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