Calibration And Adjustment; Calibration; Adjustment; Hilti Calibration Service - Hilti PD4 Manual De Instrucciones

Printed: 07.07.2013 | Doc-Nr: PUB / 5070017 / 000 / 00
once again. On doing so, the last valid distance measure-
ment shows in the result line on the display.

7. Calibration and adjustment

7.1 Calibration

The inspection, measuring and test equipment for the range
meter must be certified in accordance with ISO 900X ...
You may carry out the inspection, measuring and test of the
PD 4 range meter as specified in ISO 900x yourself. (See DIN
18723-6 Field Process for Accuracy Examinations of Geo-
detic Instruments: Part 6, Close-range Opto-electrical Range
Meters.)
Select a readily accessible measuring distance of a known
length approx. 1 to 5 meters long which is a stable distance
(does not vary with time, expand or contract with tempera-
ture) and take 10 measurements of the same distance.
Determine the mean of the deviations to the known distance.
This value should lie within the specific accuracy tolerance
for the range meter.
Keep a record of this value and note the time for the next
test.
Repeat this check measurement at regular intervals as well
as before and after important measuring tasks.
Apply a sticker to the PD 4 documenting this control of the
measuring, inspection and test for the range meter and keep
a record of the entire control process, inspection procedure
and the results.
Please refer to the technical data contained in the operating
instructions and the information concerning measuring accu-
racy.

7.2 Adjustment

For optimal adjustment, have the range meter adjusted at a
Hilti workshop where accurate adjustment of the range meter
will be confirmed with a calibration certificate.

7.3 Hilti calibration service

We recommend that you undertake a regular check of the
range meter through the Hilti calibration service in order to
verify its reliability in accordance with standards and legal
requirements.
The Hilti calibration service is available at all times, but a
check at least once a year is recommended.
As a part of the Hilti calibration service, it is verified that on
the day of the check the specifications of the range meter
comply with the technical information given in the operat-
ing instructions.
If there are deviations from the manufacturer's information,
the range meter will be re-adjusted. After the check and
adjustment, a calibration sticker will be applied to the range
meter, and it will be verified in writing in a calibration cer-
tificate that the range meter functions in compliance with
the manufacturer's information.
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