Care and maintenance

WARNING – DO NOT remove any covers from the instrument. This instrument is designed to withstand normal electromagnetic disturbance from the environment but it contains circuits that are sensitive to static electricity.

If an unauthorized person opens the instrument cover, the function of the instrument is not guaranteed and the warranty will be invalidated.

The instrument is designed and tested to withstand field conditions, but like all precision instruments, it requires care and maintenance. To get the best results from the instrument, take the following steps:

  • Do not subject the equipment to rough jolts or careless treatment.

  • Keep the rotating mirror lens clean. Use only lens paper or other material that is designed for cleaning optical equipment.

  • Keep the instrument protected and in an upright position, preferably in the instrument case.

  • Do not carry the instrument while the instrument is mounted on a tripod. Doing so can damage the tribrach screws.

  • Whenever manually rotating the instrument, use a slow and steady movement.

  • Do not carry the instrument by the rotating mirror. Use the handle.

  • When you need extremely precise measurements, make sure that the instrument has adapted to the surrounding temperature. Significant variations in instrument temperature can affect precision.

  • If the instrument is moved from (extreme) cold to warm temperature, leave the instrument in the closed instrument case for at least 15 minutes in order to avoid condensation. Then open and leave the instrument case open until all moisture has dried.

Cleaning the instrument

CAUTION – Strong chemicals can damage the instrument. DO NOT use strong detergents such as benzene or thinners on the instrument or the instrument case.

Except for the lenses, use a cloth damp with water to clean the instrument.

Cleaning the lens

Be careful when cleaning the lenses.

If there is sand or dust on the lenses, soak the sand and dust with water from a spray bottle.

Remove the sand and dust carefully with a soft cloth. Do not rub.

With the cleaning cloths supplied with the instrument, gently clean the lenses in a circular motion from the middle and out towards the edge of the lens. Do not rub.

Removing moisture

If the instrument has been in damp weather, take the instrument indoors and remove the instrument from the instrument case. Leave the instrument to dry naturally. If condensation forms on the mirror lens, allow the moisture to evaporate naturally. Leave the instrument case open until all moisture has evaporated.

Storing the instrument

Storage temperature range is from -40 °C to +70 °C (-40 °F to 158 °F) in a dry environment.

Remove the battery from the instrument before storage.