Measurement Considerations; Calibration Menu - Extech Instruments CG204 User Manual

DELETE Menu
The DELETE menus allows for deleting current data, all data, and group data. The
following parameters are available in the DELETE Menu:
Delete Current data: Deletes the current reading and updates the statistics (AVG, MIN,
MAX, etc.)
Delete All data: Delete all reading and statistical data.
Delete Group data: This function duplicates the "Delete all data" function with additional,
deletions of High alarm, Low alarm, and one- and two-point calibrations.
1. Press the MENU button to access the programming menu.
2. User the DOWN ARROW button to scroll down to DELETE.
3. Press SELECT to open the DELETE function.
4. User the ARROW keys to scroll to CURRENT, ALL, or GROUP.
5. Press SELECT again to choose CURRENT, ALL, or GROUP.
6. The meter will prompt with an 'are you sure?" confirmation.
7. Press YES or NO as desired.
MEASUREMENT VIEW Menu
The Measurement View menu allows for scrolling through the readings in all of the
groups.
1. Press the MENU button to access the programming menu.
2. User the DOWN ARROW button to scroll down to MEASUREMENT VIEW.
3. Press SELECT to open the MEASUREMENT VIEW parameter.
4. User the ARROW buttons to scroll through the stored readings.

CALIBRATION Menu

The Calibration menu allows the user to enable/disable the calibration utility. The
Calibration menu also allows the user to delete Zero calibration data for both ferrous (Zero
F) and non-ferrous (Zero N) modes.
1. Press the MENU button to access the programming menu.
2. User the DOWN ARROW button to scroll down to CALIBRATION.
3. Press SELECT to open the CALIBRATION parameter.
4. User the ARROW to scroll through the available parameters detailed below.
•
ENABLE: Enable the calibration mode
•
DISABLE: Disable the calibration mode.
•
DELETE ZERO N: Delete ZERO calibration data for non-ferrous probe
•
DELETE ZERO F Delete ZERO calibration data for ferrous probe

Measurement Considerations

1. After calibration, measurements should meet the published accuracy specifications.
2. Strong magnetic fields can affect the readings.
3. When using the statistical analysis functions for obtaining a mean value, take several
readings of the same measurement area. False readings or outliers can then be
removed (deleted) using the programming menu.
4. The final reading is derived from a statistical calculation with regard to the meter's
published accuracy specifications.
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