Johnson Level & Tool Mfg. 40-6001 User Manual

Page 27

Indoor & Outdoor Measurements

This model is designed to take measurements indoors under normal
settings. The measuring surfaces and ambient light are critical factors to
the quality of measurement (indoors and outdoors). Outdoor measurement
capability may be limited due to sunlight/UV ray interference. Please note
that in some situations the unit may have difficulty reading the surface
you try to measure if lighting or sunlight is intense and/or the surface
being measured does not reflect the laser beam appropriately.

Measurement Errors

Error messages will appear if the unit’s receiver is not getting a
sufficient laser return signal.
Common surfaces that could cause an error reading:

- Water or other fluids
- Translucent to clear surfaces like glass or acrylic
- Porous or dark surfaces may require longer reading times or

cause an error reading

- Moving surfaces or objects such as curtains
- Highly reflective or angled surfaces may deflect the laser

beam signal