FLUKE 481-DESI 481 DESI Ion Chamber Survey Meter

User Manual for the Fluke 481 DESI Ion Chamber Survey Meter - Page 9

For 481-DESI.

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481-DESI photo
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Ion Chamber Survey Meter
Receiving Inspection
5
Model 481B Typical Energy Dependence
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
00001000100101
Effective (keV)
Indicated/Actual
Side
Slide - Closed
Slide - Open
gpl03.eps
Receiving Inspection
Upon receipt of the unit:
1. Check the shipping cartons(s) and their contents for in-shipment damage.
2. Check that all items listed on the packing slip are present and in good condition.
If damage is evident, make a claim with the carrier and contact Fluke immediately. If
items are missing, contact Fluke. See the How to Contact Fluke section in this manual.
Operation
The following sections describe the operation of the Survey Meter.
External Controls
There are two external controls on the survey meter: an ON/OFF button and a MODE
button.
ON/OFF Button
Press the ON/OFF button to turn the unit on. All the elements in the display turn on and
the microprocessor runs through an initialization procedure. Part of the procedure
includes reading the calibration coefficients stored in EEPROM. If an EEPROM read
error occurs, an error code (E1) will be displayed at power-on and unity calibration
coefficients will be used.
The bar graph and digital display will show a reading that decreases as the instrument
stabilizes. The initial reading usually starts in the 50 R/h (50 mSv/h) range and decreases
through the lower ranges to a reading of less than 0.5 mR/h (5 μSv/h) within 40 seconds.
When the elements in the display turn off, with the exception of those necessary for
normal operation, the user can begin the measurement process.
Note
Background fluctuations may occur (less than 0.5 mR/h (5
μ
Sv/h))
returning to the original reading typically in less than 3 seconds.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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