3-1
Section 3
Operating Instructions
Figure 3-1 Model 4190 shown
Keypad Layout and Functions
1 ON/OFF
Button
. Pressing this key will turn on the meter. As the meter boots up it will emit a short
audible beep, display “ELF”, the model number (4180 or 4190) and then the firmware version number. All
LCD segments will then be activated and then deactivated as a check of the display. Finally the unit will
enter into normal operating mode ready for use. Pressing and holding the ON/OFF key for approximately
2 seconds will cause the meter to emit 2 short audible beeps and then turn itself off. Do not continue to
press the ON/OFF button after the two short beeps or the 4100 will remain on.
2 SHIFT
KEY.
This key is used for activating the 4190’s additional features (Hold / Reset and Analog
Output). The model 4180 meter will not respond to this key since it does not have these features.
3
AXIS Select / RESET.
The displayed reading can be changed to show the X, Y or Z axis, or the vector
summation of X, Y and Z by pressing the AXIS key.
Model 4190 only: When the SHIFT key is pressed followed by the AXIS key, any readings from max/min
hold are reset and the present field level is acquired as the new Min or Max reading.
4
UNITS / HOLD.
Pressing the UNITS key will toggle the units of measurement between µTesla and
mGauss.
Model 4190 only: Pressing the SHIFT key followed by the UNITS key will select MIN hold mode.
Pressing this key sequence again will select MAX hold mode, and a third time will turn off hold mode
again. The currently held MIN or MAX reading may be reset with the SHIFT- RESET key sequence.
