User manual

CG304-en-GB_v2.3 5/17

ZERO Calibration

Calibration Introduction

The meter is factory calibrated before shipment to the customer; however the customer should

perform a Zero Calibration before any critical measurements are taken.

Preparing for ZERO Calibration

1. Clean the probe tip (grease, oil, metal scrap, and the slightest impurity will affect

measurement and will distort readings).

2. Switch the meter ON at a 10 cm (4”) minimum distance from any metal.

3. Ready the supplied metal substrate.

4. The meter is now ready for calibration.

Zero Calibration

The user can access the ZERO Calibration utility from the normal measurement mode or from

the Programming Menu.

ZERO Calibration from the normal measurement mode

1. Press and hold the UP arrow button to access the NFE (non-ferrous) Zero Calibration

screen

2. Press and hold the DOWN arrow button to access the FE (ferrous) Calibration screen.

3. At the desired calibration screen press the sensor against the FE or NFE zero reference

substrate.

4. Press the LEFT button (OK) to accept the calibration value or press the RIGHT button

(CANCEL) to abort the calibration.

ZERO Calibration screens from the Programming Mode

1. From the normal measurement mode, press the LEFT button to access the menu.

2. Use the DOWN button to scroll to the CALIBRATION mode.

3. Press LEFT (SELECT) to open the CALIBRATION parameter.

4. Scroll to ‘CAL ZERO OF FE’ or ‘CAL ZERO OF NFE’

5. Press the LEFT button (SELECT) and ‘CAL FE’ or ‘CAL NFE’ should be displayed on the

LCD’s lower right.

6. Press the sensor against the FE or NFE zero reference substrate.

7. Press the LEFT button (OK) to accept the calibration value or press the RIGHT button

(CANCEL) to abort the calibration.

8. Note that the user can delete ZERO Calibration data by selecting ‘Del ZERO of FE’ or ‘Del

ZERO of NFE’ from the CALIBRATION mode in the Programming menu.