ELECTRONIC PERSONAL DOSEMETER HANDBOOK
EPD/HB/40521/000
TECHNICAL DESCRIPTION
ISSUE 5
Thermo
Page 61
4.6.11 Event History Store
The EPD logs up to 23 events in non-volatile store, together with a time stamp.
These comprise alarm and fault events see tables 4.1 and 5.2. From software
version 11, EPD ON and OFF events are also recorded (see Table 4.1).
Note: The Event History time store wraps round after 194 days of operation.
After this time previous event-associated day/date(s) cannot be considered
as accurate. In addition elapsed time during loss of power is not recorded.
Events On Events Off
Code
Text as displayed by
EasyEPD2
Code Text as displayed by
EasyEPD2
200 Failure Alarm on 220 Clear Faults
201 Over Range Alarm on 221 Over Range Alarm off
202 Hp10 Dose Alarm 2 on 222 Hp10 Dose Alarm 2 off
203 Hp07 Dose Alarm on 223 Hp07 Dose Alarm off
204 Hp10 Dose Alarm 1 on 224 Hp10 Dose Alarm 1 off
205 Hp10 Rate Alarm 2 on 225 Hp10 Rate Alarm 2 off
206 Hp07 Rate Alarm on 226 Hp07 Rate Alarm off
207 Hp10 Rate Alarm 1 on 227 Hp10 Rate Alarm 1 off
208 Battery Alarm on 228 Battery Alarm off
209 Return for read Alarm on 229 Return for read Alarm off
210 Count Down Alarm on 230 Count Down Alarm off
211 Abuse Alarm on 231 Abuse Alarm off
219 Detectors ON* 239 Detectors OFF*
* Version 11 and later software only
Other Events
Code Text as displayed by
EasyEPD2
240 Power Converter Switched
On
241 Power Up Cold Start
242 Power Up Warm Start
Table 4.1 ( 3 parts ) EPD Events logged to the Event History Store.
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