Emissivity Adjustment - Extech Instruments 42510A User Manual

The MODE button options

Emissivity adjustment

Temperature Units
MAX (maximum) and MIN (minimum) Temperature display
Lock feature
High and Low Alarm Feature
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The MODE button is used to access the emissivity adjustment, unit of measure selection, MAX-MIN
feature, test-lock feature, and high-low alarms
1. Press and release the trigger
2. While HOLD is on the display, press the MODE button to enter the programming mode and to
step through and configure the following features. A blinking icon indicates the feature is
selected.
E
= (Emissivity Value)
Press the ▲ or ▼ buttons to change the emissivity value from 0.10 to 1.00
C/F (Units of Measure)
Use the ▲ and ▼ buttons to select the unit of measure.
MAX-MIN (highest and lowest reading memory)
Press the ▲ or ▼ buttons to select MIN or MAX display
(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.
An adjustable emissivity allows for accurate measurements on a variety of surface colors, textures,
reflectivity, and finishes. The topic of emissivity is covered in greater detail in a subsequent section
of this guide.
The temperature units can be set to °F or °C in the programming mode using the ▲ and ▼ buttons
The highest reading (MAX) or the lowest reading (MIN) encountered during a single measurement
scan is displayed in the lower left-hand display area on the LCD. Select MIN or MAX in the
programming mode using the ▲ and ▼ buttons
The LOCK feature disables the Auto Power Off feature for the period of use when selected. The
feature is useful for long term temperature monitoring and hands free use. The meter will revert to
auto power off if the trigger is pressed during a locked scan.
The meter has a programmable high and low alarm feature. When either alarm point is reached the
meter will alert the user via an audible beep and a blinking LCD display icon. The alarm limit is set
and the feature is enabled/disabled in the programming mode. The setting is stored and memory
and will remain as the ON condition until changed.
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