Spartan 730/730IS Dosimeter Manual
Defining a Measurement Configuration
33
Step 6.
If you want to enable additional virtual dosimeters, do the following:
Enabling or Disabling Dosimeter 2, 3, or 4
a.
From the Settings menu, highlight, then
select
Dosimeter 2
. This opens
the Dosimeter 2 menu.
Properties of a Custom Configuration
Use the dosimeter buttons
to choose values for each of the
following settings. Additional information for each term in the
Appendix B “ Glossary” on page B-1
•
Title
: Enter a unique title for the measurement
configuration.
•
Mode
: Select
Dose
or
ISO
•
Exch Rate
: Select a value for Exchange Rate from this drop-
down menu. This value is only available when you choose
Dose from the Mode drop-down menu. The Exchange Rate
defines the ratio of exposure time to level. For example, if I
choose 5 for this setting, and the sound field is constant,
this means that an increase of 5 dB in the Time-Weighted
Average (TWA) would result in the dose being doubled. A
decrease of 5 dB in the TWA would result in the dose being
50% less.
•
Criterion Lvl
: The abbreviation for Criterion Level. This
value is only available when you choose Dose as the Mode.
Use the default or enter a custom value.
•
Thresh En
: The abbreviation for Threshold Enable. Choose
Enable or Disable.
•
Threshold
: This value is only available when you choose
Dose as the Mode. Use the default or enter a custom value
(55-100 dB).
•
Shift Time
: This is the length of time in hours that a
dosimeter subject could be exposed to noise at work
•
Freq Weight:
The abbreviation for Frequency Weighting.
This is the frequency weighting used for all noise level
calculations for this virtual dosimeter except for the peak
detector, which has a separate weighting selection. Choose
A-Weight, C-Weight, or Z-Weight.
•
Pk Freq Wt:
The abbreviation for Peak Frequency
Weighting. Select from A, C, or Z.
