Overrange Conditions; Reset Error - Fluke 35040 Operator's Manual

35040
Operators Manual
ADC
OVER nC
OVER pA
OVER min OVER s
ADC
Current Overrange
Reduce exposure and
Press RESET/MEASURE
Figure 3-29. The Measurement Overrange Screen
Table 3-1 specifies the conditions that cause the Model 35040 Therapy Dosimeter to display the
overrange indicator for a measurement.
Table 3-1. Overrange Conditions
Condition
charge > 2.4 μC
accumulated charge > 1.0000 C accumulated charge, accumulated dose
current > 100.0 nA
time > 59 min 59 s

3.9.14 Reset Error

Pressing the RESET /MEASURE button while on the Measurement Screen causes the Model 35040
Therapy Dosimeter to reset the electrometer, zero all readings, and restart the measurement process. If
an exposure starts during the reset operation, the instrument displays the reset error message (see
Figure 3-30).
ADC
Internal Reset Error
Press RESET/MEASURE
and Repeat Exposure
Figure 3-30. The Measurement Screen Showing a Reset Error
To remove the error condition, end the exposure, and press the RESET/MEASURE button. Wait a few
seconds and repeat the exposure.
3-18
Figure 3-28.
Charge and Current Limits Exceeded After the First
60 Seconds
Values Overranged
charge, accumulated charge, dose, accumulated dose, average
current, average dose rate, effective exposure time
all except leakage
effective exposure time
The Measurement Screen With the