dosemeter User Manual 
Page 51
Section 7 Troubleshooting
The following information is designed to solve common problems found when 
using the dosemeter system. If you cannot solve the problem, please contact 
your local representative or Pulsar Instruments plc directly. There are no user 
serviceable parts inside the dosemeter, Reader or Charger.  
The MODEL 22 dosemeter
Symptom  Possible Cause  Solution 
The dosemeter will not Reset  The dosemeter has not been 
used for more than 1 hour and is 
in Sleep Mode 
Wake the dosemeter by shaking. 
Refer to page 22 for details. 
  The dosemeter battery is flat  Charge the dosemeter. 
  The Infrared window on the 
dosemeter is not aligned with 
the Infrared Port on the Reader  
Align the Infrared window on the 
dosemeter with the Infrared Port 
on the Reader unit. 
The dosemeter will not Calibrate  The dosemeter has not been 
used for more than 1 hour and is 
in Sleep Mode 
Wake the dosemeter by shaking. 
Refer to page 22 for details. 
  The dosemeter battery is flat  Charge the dosemeter and then 
reset the dosemeter using the 
Reader Unit. 
  The dosemeter is not pushed 
into the Acoustic Calibrator 
Insert the dosemeter into the 
Acoustic Calibrator cavity on the 
Reader unit. 
  The Infrared window on the 
dosemeter is not aligned with 
the Infrared Port on the Reader  
Align the Infrared window on the 
dosemeter with the Infrared Port 
on the Reader unit. 
  The dosemeter and Reader unit 
have been stored at different 
temperatures and the calibration 
offset is outside of acceptable 
tolerances. 
Allow the dosemeter and Reader 
unit to return to room 
temperature. This may take up 
to 30 minutes. 
The dosemeter will not Start  The dosemeter has not been 
used for more than 1 hour and is 
in Sleep Mode 
Wake the dosemeter by shaking. 
Refer to page 22 for details. 
  The dosemeter battery is flat  Charge the dosemeter and then 
reset the dosemeter using the 
Reader Unit. 
  The Infrared window on the 
dosemeter is not aligned with 
the Infrared Port on the Reader  
Align the Infrared window on the 
dosemeter with the Infrared Port 
on the Reader unit. 
  The Reader is too far away from 
the dosemeter 
Move the Reader closer to the 
dosemeter and retry. 
  The communication between the 
Reader and the dosemeter was 
not completed 
Ensure that the communication 
between the Reader and 
dosemeter is completed before 
moving the Reader unit.