Checking Calibration
Calibration is factory set. It may be checked by using a Wagner Calibration Verification Block (CVB) (P/N: 840- 60130-003). Use only to verify that L622 factory calibration is within tolerance limits. If calibration is out of tolerance, return L622 to CCW/TMMC for re-calibration. Never adjust L622 to this device. Protect CVB from direct sunlight. Store the CVB in a cool dry place.
Follow these steps for checking calibration.
- Enter the Calibration verification mode using the MENU button.
- Hold the L622 in mid-air so the bottom is several feet from any object. The correct reading for air is .0 %MC. If the reading is outside the range, -.2 to .2 %MC, the L622 is out of calibration.
- Place the CVB, rubber feet down, on a metal surface: such as a file cabinet, a piece of sheet metal, etc.
- Align the long axis of the L622 with the long axis of the CVB. Press the L622 sensor in the center of the CVB and observe the reading. The correct reading is 20.0 %MC. If the reading is outside the range, of 18.0 to 22.0 %MC, the L622 is out of calibration.
