International Medcom 7078230336

1
How to Use the Inspector
2
This presentation is intended to give the user a
brief overview of how to operate the Inspector.
For a complete understanding of this instrument
please refer to the operating manual.
3
What the Inspector Does

• The Inspector measures the rate of the following
  types of nuclear radiation
• Alpha
• Beta
• Gamma
• X-radiation
• The Inspector measures the amount of nuclear
  radiation in
• Counts per minute (CPM)
• Counts per second (CPS)
• MilliRoentgens per hour (mR/hr)
• MicroSeiverts per hour
• (µSv/hr)

4
How to Turn On the Inspector

• Turn the Inspector on by moving the lower switch
  from Off to On or Audio.
• On--The Inspector is measuring radiation but
  there is no audio.
• Audio--The Inspector is measuring radiation, and
  beeping with each count of radiation that is
  detected.
• When the Inspector is first turned on it does a 3
  second system check, displaying all the
  indicators and numbers.
• After the system check is finished the Inspector
  shows the current level of nuclear radiation.
• The Inspector updates its visual display once
  every three seconds.

5
How to Select the Operating Mode

• Move the upper switch to
• Total/Timer
• CPM/CPS (counts per minute or counts per second)
  
• mR/hr or µSv/hr (milliRoentgen per hour or
  microSeivert per hour).
• In Total mode the Inspector starts totaling the
  counts it registers, and the numeric display is
  updated each time a count is registered.
• The CPM mode is the easiest to understand for the
  layperson.

6
How to Switch the Mode

• To switch the mode from mR/hr to µSv/hr and from
  CPM to CPS
• Turn the Inspector off.
• Hold down the button on the end panel while
  turning the Inspector on.
• Scroll through the numbers on the screen until
  you get to 2.
• Press the CAL button on the end panel.
• Use the or - button on the end panel to toggle
  between settings.

7
What is Background Count?

• The background count is the normal level of
  nuclear radiation that is occurring at a given
  time and place.
• Some sources of background radiation are
• The sun
• Minerals in the earth
• Residual radiation from nuclear testing and other
  man made sources
• Nuclear radiation is a naturally occurring
  phenomenon. When the Inspector is on it is
  normally measuring the background count.
• A user should determine the normal background
  count in case abnormal levels of nuclear
  radiation occur.

The mesh screen covers the end window of the
Geiger-Mueller sensor.
8
How to Determine the Average Background Count

• Turn the Inspector On, and put it in Total mode.
  
• Set the Timer switch on the end panel to Set.
• Press the button until the display reads 0010
  (this means ten minutes).
• Set the Timer switch to On. The Inspector beeps
  three times and starts counting.
• At the end of the ten minutes, the Inspector
  beeps three times, and repeats beeping several
  times. Note the total reading.
• Divide this number by ten for the average count
  per minute which is the average background count
  per minute.

9
How to Change the Battery

• Turn the Inspector over.
• Remove the battery cover.
• Detach the 9 volt battery from the wire connector
  and replace.
• The battery life for the Inspector is
  approximately 200 hours.