Hitachi Koki USA Ltd. Marine Instruments UG 50Y Manual Do Utilizador

17

If the accuracy is found to be faulty, contact the dealer for repairs.

Checking repeated measuring accuracy 
1

 Fix the position of the instrument and measure a distance of 

approximately 3 ft (1 m) to 16 ft (5 m) ten times.

2

  Accuracy is normal if the variation in the measurements is within 

0.12˝ (3 mm).

Measuring accuracy may vary depending on the characteristics of 

the laser beam refl ected from the target surface or the surrounding 

brightness. Measure the target surface under the following conditions.

○  Dark place away from direct sunlight

○ Smooth surface

○  Not too strongly refl ecting surface (mirror, etc.)

○  White or gray wall

○  Free from steam, mirage or dust
Causes of error and remedies 

Error 

code

Cause

Remedy

201

Outside measuring 

range

Use within measuring range.

202

Refl ected signal is 

too weak

Measure target surface in 

good condition.

203

Exceeded display 

range

Press on/off  button to reset.

204

Calculation error 

(Pythagorean theorem)

Measure in correct order.

205

Exhausted battery

Replace with new battery.

206

Temperature too high

Use in range of 0oC to 40oC.

207

Temperature too low

Use in range of 0oC to 40oC.

208

Surroundings too 

bright

Measure away from strong 

light (direct sunlight, etc.).

○  After use, be sure to turn off  the power and store the instrument in 

the provided case.

○  If the instrument is not to be used for a long period, remove the 

battery.

○  Avoid storing the unused instrument or accessories in the following 

places. Store in a safe, dry place.

○  Keep out of reach of children

○  Keep out of the rain, such as under the eaves, and away from 

humidity

○  Store out of direct sunlight

○  Store away from rapid changes in temperature

○  Store away from vibration

Dispose of the instrument appropriately by a method specifi ed by the 

local government of the area.

Disposing of the instrument inappropriately may result in the following 

problems.

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2009/05/15   16:52:22

2009/05/15   16:52:22