5Pt385/Pt3926 T1 Input RTD Probe Select
The Pt385/Pt3926 key switch the T1 input selects the Pt385 or Pt3926 RTD probe as input.
When the thermometer is turned on, it is set to the probe selected that was in use when the thermometer was last turned off.
6MIN MAX with Time record Mode
Press MIN MAX key to enter the MIN MAX Recording mode, (displays the Maximum reading with time, Minimum reading with time and Average
reading stored in record mode). In the this mode the automatic 
key, °C/°F key, REL key, SET key, Hi/Lo LIMITS key, Pt385/Pt3926 and all RECALL keys are disabled.
The beeper emits a tone when a new minimum or maximum value is recorded.
Present temperature reading displayed on second display.
Push MIN MAX key to cycle through the MAX, MIN and AVG readings. If an overload is recorded, the averaging function is stopped and average value
The true average of all the reading taken over at least 22 hours preiod can be displayed. If 22 hours is exceeded, new averages are no longer calculated. The last calcalated value is retained as the average reading, but the actual minimum and maximum reading will continue to be captured.
In the this mode, press HOLD key to stop the recording of readings, all values are frozen, press again to restart recording.
To prevent accidental loss of MIN, MAX and AVG data, in this mode can only be cancelled by pressing and hold down the MIN MAX key for 2 seconds to exit and erased recorded readings.
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