FAQs

Run a manual non-uniformity correction from the settings menu with the lens cap fitted. This re-baselines the sensor and clears fixed-pattern artefacts.

Each lens has a minimum focus distance listed in the specification sheet. Move further from the target, or fit the close-up lens accessory for the model.

Download the firmware package for your exact model from the Download Center, unpack it to the root of an empty USB drive, and follow the update procedure in the release notes. Do not power the instrument off during the update.

Repeat the procedure with a freshly formatted USB drive and fully charged batteries. If the instrument no longer starts, submit a service request rather than retrying further.

The installed version is shown in the system information screen of the settings menu, and is also printed on the start-up splash screen.

Store it dry, between −10 and 50 °C, with the batteries removed if it will be idle for more than a month. Leaking cells are the most common cause of avoidable damage.

Wipe with a soft cloth dampened with water or a mild detergent. Do not use solvents or abrasives, and never immerse the instrument.

Replace leads as soon as the insulation is nicked, stiff or discoloured, or when the continuity reading between the tips is unstable. Damaged leads defeat the instrument’s safety rating.

Open the settings menu, select the logging option, and choose a sample interval. Logged records are written to internal memory and can be exported over USB.

Hold freezes the current reading on the display so it can be read after the probes are removed. Press the button again to resume live measurement.