KEYPAD SYSTEM
The DFM-IV has a simple 3-button calibration
system. Operating and calibration modes are shown
on the 16-digit alphanumeric display. The keypad is
used to move around the menu to calibrate the
DFM-IV, and to view operating mode and functions.
A beep is sounded as each key is pressed. If the
keypad is not used for 10 minutes, the DFM-IV will
automatically go to
RUN mode. Use the keypad to
explore the Menu and become familiar with its
features.
MENU - FLOW CHART
The following diagram shows the DFM-IV Menu system. Arrows show the three directions to leave a
box. Pressing a corresponding keypad arrow will move to the next box in the direction shown. Move the
cursor (or underline) under numerals and increase or decrease numerals with the È and Ç keys.
At the bottom of each Menu column is a
Store? Yes box. To store the calibration values permanently
(even through power failure), move the cursor under
Yes and press the È or Ç key. If the È key is
pressed with the cursor under
Store? no changes will be stored and the system will return to the top of
the Menu column.
DFM-IV Doppler Flow Meter
Manual Series A.6
Page 4
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