Operating Instructions - Extech Instruments 42570 User Manual

Operating Instructions

IR Temperature Measurements
1. Hold the meter by its handle and point it toward the surface to be measured.
2. Pull and hold the trigger to turn the meter on and begin testing. "SCAN" and the temperature
reading will appear on the large display. The upper and lower sub-displays will indicate
values/settings previously used.
3. Release the Trigger and the reading will hold for approximately 7 seconds ("HOLD" will appear
on the LCD) after which the meter will automatically shut off. The only exception to this is if the
LOCK mode is set to ON.
The MODE button options
With the trigger pulled (SCAN displayed), Press the MODE button to view and scroll through:
MAX : Maximum value measured
MIN: Minimum value measured
DIF: Difference between the Max and Min values
AVG: Average of the measured values
LOG: A memory location is displayed in the small upper display and the value in that location
is displayed in the small lower display. Press the ▲ or ▼ buttons to scroll through the
locations.
TK: With a Type K thermocouple probe connected to the meter, the probe temperature is
displayed in the small lower display.
With the trigger released (HOLD displayed), Press the MODE button to scroll through and access
the following. The selected item is indicated by a blinking icon.
Recorded data: (Press the ▲ or ▼ button to scroll through and view)
MAX
MIN
DIF
AVG
LOG
ε
=
Emissivity (blinking
Lock mode. Press the ▲ or ▼ buttons to select ON or OFF.
High alarm ON or OFF (blinking H). Press the ▲ or ▼ button to select.
High alarm value adjustment (blinking H and
value.
Low alarm ON or OFF (blinking L). Press the ▲ or ▼ button to select.
Low alarm value adjustment (blinking L and
value.
°C or °F Temperature units. Press the ▲ or ▼ button to select.
ε
=). Press the ▲ or ▼ button to set the value.
4
). Press the ▲ or ▼ button to set the
). Press the ▲ or ▼ button to set the
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