Johnson Matthey Tracerco PED Series User Manual

MN1010 Rev. G
20 of 25
Non-critical
warning
Description
Action
Calibration due
More than one year has elapsed since the last
calibration. Tracerco recommends yearly calibration.
Return the PED to Tracerco.
Default Cal data
The default calibration values (factory setting) are set.
Return the PED to Tracerco.
Memory low
The memory is more than 70% full.
Transfer data to
DoseVision™ as soon as
practical.
Warning
Undefined warning.
Return the PED to Tracerco.
3.9.2 Critical errors
Critical errors indicate problems that prevent accurate operation. If the PED is switched on when a malfunction
occurs, the PED indicates the error as follows:
Audible alarm
An alarm sounds. The malfunction alarm sound is shorter and less frequent beep than the radiation alarm
beeps.
Dose – last reading
The dose rate area of the readings screen is replaced with a white cross on a red square background, as
shown below, and the error stated. The label Stay Time is replaced with the label Last Reading to indicate
that displayed dose is the last dose reading before the critical malfunction occurred.
The image below shows a PED with the critical error Battery Low.
If a critical malfunction occurred while the PED was switched off, the PED does not perform a full restart when
switching on. Pressing the button causes the relevant malfunction message to be displayed on the opening screen.
When the button is released (or after one second for a dead battery), the PED screen switches off.
The table below details possible critical error messages and the appropriate actions to take.

Johnson Matthey Tracerco PED Series Specifications

General

Brand	Johnson Matthey
Model	Tracerco PED Series
Category	Measuring Instruments
Language	English