Model 3000 Survey meter User’s Manual Section 9
Ludlum Measurements, Inc. Page 9-1 April 2021
Revision History
NOTE: This section of the manual will be updated with each revision of
the Model 3000 in order to document changes over time. Ludlum
Measurements’ policy is to provide free software upgrades to instruments
for the life of the instrument.
December 2013: New manual.
May 2014: Added HV range, Threshold range, and maximum load on
supply to Specifications, Section 3.
July 2014: Added standard parts list, Section 8. Added note about foam
grip in Intro. Added sentence on page 4-6 about setting DTC to zero
when checking with pulser.
September 2014: In second paragraph on page 4-4, corrected “Mode”
button to “Units” button twice. Also changed to hold down button for
4 seconds instead of 3. Updated ON/ACK and AUDIO button
operational descriptions to reflect Sigma Audio operation. On page 3-1
changed ON/OFF/Quiet button to ON/OFF/ACK.
November 2014: Added a note explaining entering Setup Mode while
in Sigma Mode on page 4-3. Added a note on page 4-14 regarding the
audio and background.
December 2015: Added description of headphone option. Corrected
the location of the low-battery indicator. Updated the table on page 4-
13. Removed “Units selected as Primary will not be available as
Secondary” on page 4-11.Updated Sigma Audio Note on page 4-14.
April 2016: Added information about rate reset on page 2-6. Added
different options for protect mode to firmware on page 4-3. Took out
references to Triad software and replaced with Lumic.
November 2016: Added information about the new parameters
Backlight Threshold, Device COUNT Display Mode, Device COUNT
Audio Mode, and DTC2. Connection information, to most pcs.
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