Troxler EGauge Combo 4540 - Radiological Information

D-2
Radiological Information
The Model 4540 contains 3.3 MBq (90 µCi) of Cesium-137
(Cs-137) in the form of a sealed source. The source is located in
an extendable source rod. The source rod provides protection
against release of radioactivity under normal use and likely
accident conditions, including fire.
The radiation levels near the Model 4540 are very low.
Therefore, no special radiological precautions are necessary for
operation of the device:
 Radiation safety training is not required to operate the
gauge.
 Personnel radiation monitoring is not required.
 Sealed source leak testing is not required.
 Radiation area posting is not required.
The maximum radiation levels in or near the Model 4540 are
shown in the table below:
Location
Dose Rate
mrem/h
μSv/h
External surface (5 cm)
0.35
3.5
Distance of 30 cm
0.03
0.3
Distance of 100 cm
0.002
0.02
NOTE
The receipt, possession, use, and transfer of the Model
4540 in the US and its territories are exempt from
licensing by the U.S. Nuclear Regulatory Commission
(NRC) or Agreement States.
WARNING
Do not attempt to disassemble or remove
the radioactive source from this device.