Nikon Nivo 3.C Руководство по эксплуатации - Страница 30

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Измерительные приборы Nikon Nivo 3.C. Nikon Nivo 3.C 32 страницы. Hardware

Preparation

•

Hold the prism securely in place and do not move while taking measurements.

In Prism mode, in order to avoid false measurements on objects other than the prism or reflector-sheet, targets

that are less reflective than the prism or reflector sheet are not measured. Even if you start a measurement,

measured values are not displayed. To measure less reflective objects, use the N-prism (reflectorless) mode

Measurement in Reflectorless mode

The intensity of the reflection from the target determines the distance the Nivo series

can measure in this mode. The color and condition of the target surface also affect the

measurable distance, even if the targeted objects are the same. Some less-reflective

targets may not be measured.

The following table describes some examples of targets and approximate measureable

distances.

Target

Traffic signs, reflectors

Paper (white), veneer (new)

wall (brightly painted), brick

Measurable distances may be shorter or measurement intervals may be longer in the

following cases:

•

In direct sunlight, the measurable distance may be shorter. In this case, try to throw a

shadow on the target.

Targets with completely flat surfaces, such as mirrors, cannot be measured unless the

beam and the target are perpendicular to each other.

Make sure there are no obstacles between the instrument and the target when taking measurents.

When you need to take measurements across a road or a place where vehicles or other objects are frequently

moving, take several measurements to a target for the best result.

1 8

Total Station Nivo Series Instruction Manual

When measuring a short distance, incline the prism slightly so that the EDM

can ignore unnecessary reflections on the prism surface, as shown below.

the angle of the laser against the target is small

the surface of the target is wet

You can measure approximately...

500 meters (1640 feet)

300 meters (990 feet)

100 to 200 meters (330 to 660 feet)