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Dosimetry 
          The Edge Models 
053-644, Rev E  
Page   6 
 
eg4 & eg3 
 
Quest Technologies offers two Edge models.  The “eg4” model features two virtual 
dosimeters with data logging.  Once the parameters are set and saved in the dosimeter, you 
can monitor two different dosimeters by a single press of the Enter button.  This will toggle 
you between the two dosimeters.  The “eg3” model is equipped with one dosimeter setting 
and will not data log.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 1-3:  Parameter setup screen for eg4 
You can monitor and log noise studies by enabling two different parameter settings in one 
dosimeter, also referred to as “virtual dosimeters”.   For instance, you may want to set one 
dosimeter to log using the OSHA HC (Occupational Safety and Health Administration -  
Hearing Conversation) parameters and also monitor noise with the OSHA PEL 
(Occupational Safety and Health Administration – Permissible Exposure Level) settings. 
 
  A few scenarios of virtual dosimeters include: 
Industrial noise control  
Hearing conservation compliance  
Work site assessments  
Personal noise verification  
Military applications  
Regulatory compliance (i.e., OSHA, MSHA, IEC, ACGIH)