3-F. T1-T2 Difference, 800007 Only; Auto Power Off - Sper scientific 800004 Instruction Manual

• Press the REL (6) button again to exit.
EXAMPLE: A temperature reading of 75.0°F
was stored in memory by pressing the REL but-
ton. Next, the probe was placed in an environ-
ment where the temperature is 55.0°F. "REL"
and "-20.0 " are displayed.
°F

3-F. T1-T2 Difference, 800007 only

This function uses two probes to
display the difference between
the T1 and T2 temperatures.
With the meter on, press the
T1-T2 (9) button once.
In this example, the T1 value is
79.5°F, the T2 value is 52.3°F,
and the difference is 27.2°F. Or,
T1 (79.5) - T2 (52.3) = 27.2°F.
NOTE: The MAX/MIN (4) and REL (6) buttons
will not operate in Difference mode.

4. AUTO POWER OFF

If no buttons are pushed for about 20 minutes,
the meter will automatically turn off.
T1
79.5
K
52.3
K
T2
T1-T2
27.2
K
52.3
K
T2
- 6 -
°F
°F
°F
°F