Extech Instruments 42512 Operation & User’s Manual

2 Introduction Congratulations on your purchase of the Model 42512 IR Thermometer. This Infrared thermometer measures and displays non-contact temperature readings up to 1832 oF (1000 oC). At 30”, built-in dual lasers converge to 1” target spot to insure accurate targeting and temperature measurement. The adjustable emissivity feature allows the IR thermometer to measure the temperature of virtually any surface. Proper use and care of this meter will provide years of reliable service. Safety • Use extreme caution when the laser pointer is on • Do not point the beam toward anyone's eye or allow the beam to strike the eye from a reflective surface • Do not use the laser near explosive gases or in other potentially explosive areas

5 MAX (maximum) temperature display The highest reading encountered during a single measurement scan is displayed in the MAX display Backlight 1. Press and release the Trigger 2. While HOLD is on the display, press the backlight button once to turn on the backlight on or off. 3. The backlight will illuminate in the LCD when the feature is enabled. 4. The status of the backlight will be stored in memory and will remain as the “turn-on” condition until changed. 5. Note: The backlight will shorten the battery life. Only use this feature when required. The MODE button options The MODE button is used to access the Emissivity, Lock, High alarm and Low alarm features of the instrument. 1. Press and release the Trigger 2. While HOLD is on the display, press the MODE button to step through and program the following features. A blinking icon indicates the feature is selected. E= (Emissivity Value) Press the ▲ or ▼ buttons to change the emissivity value. (Lock mode On/Off) Press the ▲ or ▼ buttons to turn the lock feature ON or OFF. (High Alarm On/Off) Press the ▲ or ▼ buttons to turn the High Alarm feature ON or OFF. (High Alarm setting) Press the ▲ or ▼ buttons to set the high alarm limit value in the main display (Low Alarm On/Off) Press the ▲ or ▼ buttons to turn the High Alarm feature ON or OFF. (Low Alarm setting) Press the ▲ or ▼ buttons to set the Low alarm limit value in the main display.