407910 Datasheet, PDF (6/7 Pages) Extech Instruments Corporation. – Heavy Duty Differential Pressure Manometer

MIN/MAX Record/Recall Mode
The Record/Recall function tracks the maximum and minimum readings for recall at any
time.
1. Press the RECORD/RECALL button once. The REC indicator will appear on the
display.
2. Press the RECORD/RECALL button again to view the highest (MAX) reading taken
since the RECORD/RECALL button was first pressed. The MAX indicator and
maximum reading will appear on the display.
3. Press the RECORD/RECALL button again, the MIN indicator and the minimum value
will appear on the display.
4. To return to normal operation, press and hold the RECORD/RECALL button until the
display indicators REC, MAX, and MIN disappear.
RS-232 PC Interface
The meter has a built-in RS-232 serial port for use with the optional PC Interface Data
Acquisition Software/Hardware kit Model 407001.
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Model 407910 - Version 2.0 - March 2005