Pulsar Model 22 User Manual 
Page 13
CHR22 Charger Unit
The CHR22 Charger Unit replaces all previous versions of the dosemeter chargers and is 
compatible with all versions of the dosemeter. 
The charger has a number of new and important features which are different from the 
previous CHR-20 Chargers Units. 
Important Features
The maximum charge time is under 3 hours for a completely flat dosemeter. For 
a dosemeter that has a partially charged battery, the charge time will be much 
shorter 
The CHR22 Charger Unit always charges, ie there is no automatic discharge 
function 
The CHR22 is compatible with all previous versions of the dosemeter 
The CHR22 has a Discharge/Charge cycle button on the bottom of the unit to 
allow for the dosemeters to be fully discharged and recharged. This can be used 
where the dosemeters will not be used for more than 28 days (see page 48 for 
details) 
dosemeters to be charged