Extech Instruments EN510 User Manual page 5

Reversible Display with Backlight
The display automatically reverses orientation depending on measurement mode.
The display is equipped with backlighting. With the meter ON, short press the power button to
switch ON the backlight. The backlight will power OFF automatically after several seconds.
Display Hold
Short press the H (Hold) button to freeze and unfreeze the displayed reading. The Hold mode is
not operational when using the MAX-MIN recording mode. The HOLD icon is shown when
Display Hold is active.
MAX-MIN Record Mode
In this mode, the meter records the maximum and minimum readings.
• Short press the R (Record) button to start recording. The REC icon will appear.
• Short press the R button to toggle MAX and MIN readings. The MAX and MIN icons indicate
which reading is shown.
• Short press the H button to reset MAX and MIN memories.
• Long press the R button to exit the Recording mode.
Measurement Modes
Air Velocity with Temperature
• With the meter ON, long press the M (Mode) button until 'An' is displayed.
• Hold the measurement vane in the air stream (in either direction).
• View the air velocity and air temperature readings on the display.
Light Measurements
• Long press the M button until 'LigHt' is displayed.
• Hold the meter so that the source of light fully encompasses the sensor dome.
• View the reading on the display (light readings are displayed in reverse orientation).
Type K, Wind Chill, RH, Dew Point, Wet Bulb, Heat index Measurements
• Long press the M button until the desired function is displayed:
• CHiLL Wind chill; rH Relative Humidity (with air temperature); dP Dew point; _Et Wet bulb;
HEAt Heat index; tYPE Type K thermocouple temperature (attach thermocouple to meter)
• Place the meter in the measurement area and view the reading on the display. For
thermocouple measurements, touch the probe tip to the object under test and read the
temperature measurement on the display.
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