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TelePole WR/ Operating & Maintenance Manual Page 17

5. Calibration Instructions

5.1. Preface

5.1.1. Calibration Factors

To improve the linearity, the TelePole uses five calibration factors: The two lower factors

are for the low range Geiger, from 0.01 mR/h to 800 mR/h; and the other three are for the

high range Geiger, from 1000 R/h to 600 mR/h.

Note: Optional Switching 070301 Firmware; the two lower factors are for the low range

Geiger, from 0.01 mR/h to 2500 mR/h; and the other three are for the high range Geiger,

from 1000 R/h to 2000 mR/h.

The calibration factors will be displayed on the meter, as follows:

F1 - first calibration factor for low range.

F2 - second calibration factor for low range.

F3 - first calibration factor for high range.

F4 - second calibration factor for high range.

F5 - third calibration factor for high range.

F1 and F3 are used to compensate the Geiger sensitivity tolerances.

F1 for the low range Geiger (ZP1201) and F3 for the high range Geiger (ZP1301).

F2, F4 and F5 are used to compensate the Geiger dead time tolerances.

F2 for the low range Geiger (ZP1201) and F4, F5 for the high range Geiger (ZP1301).

5.1.2. Calibration Ranges

F1 has to be set at 50 mR/h ± 20 mR/h

F2 has to be set at 350 mR/h ± 50 mR/h

Optional Switching 070301 Firmware: F2 factor must be set at the range of 800 to 1500

mR/h when using the optional switching firmware

F3 has to be set at 10 R/h ± 2 R/h

F4 has to be set at 200 R/h ± 60 R/h

F5 has to be set at 600 R/h ± 100 R/h

Measured (displayed) readings are calculated by one of the following two formulas,

depending on the intensity of the radiation field:

Low range: N(mR/h) = [n*F1 + dead time correction {n*F2}]/17

High range, up to 300 R/h: N(R/h) = [n*F3 + dead time correction {n*F4}]/300

High range, over 400 R/h: N(R/h) = [n*F3 + dead time correction {n*F5}]/300

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MGP WRM2 Especificaciones Pagina 17