Extech Instruments VIR50 Manual do Utilizador descarregar pdf (Página 14)

VIR50-EU-EN v2.3 5/14

Emissivity setting

Use the arrow buttons to highlight an emissivity setting and then press ENTER to choose it. Select

emissivity by description (concrete, glass, etc.) or select ε=0.94 to set the emissivity manually using

the arrow buttons. Press the ESC button to exit and save.

Alarm High

Use the ▲ and ▼ buttons enable or disable the alarm. If the high alarm is enabled, press the

ENTER button to adjust its value; use the ▲ and ▼ buttons to adjust the value. Press the ENTER

button to conform and then press the ESC button to exit and save.

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Extech Instruments VIR50 Manual do Utilizador Página 14