Quick start manual

STER PMU Quick Start Manual Instrument maintenance

5.6 PERIODIC CALIBRATION

To ensure correct measurement, it is essential that the instrument is regularly calibrated. If used continuously on a

daily basis, a six-month calibration period is recommended, otherwise annual calibration is sufficient. Contact your

distributor for calibration details.

5.7 SERVICE

For other repairs, either under or outside of warranty, please contact your distributor for further information.

5.8 TROUBLESHOOTING

 If Esc or Enter button is held pressed while switching on the instrument, the instrument will not start. In that

case, batteries might need to be removed before starting the instrument again. After the batteries have been

reinserted, power on the instrument without holding any keys to start it normally.

 If the instrument is switched on on flat batteries and without power supply adapter connected, power supply

circuitry may lock itself. In that case, the instrument will not power up even with external power supply

adapter is connected afterwards. To remedy this situation, batteries must be removed and re-inserted, and

the instrument must be switched on with the power supply adapter. After the successful boot, batteries

should be charged for at least a half of hour to avoid recurrence of this problem on next measurement

session.