Larson Davis System 824 User Manual

11/8/00 Using ID Setting Files 7-67
LN Centiles Check Menu
The
Ln Centile
view has access to the following Check
menu:
Menu Items Purpose
Ovll Exchange Sets the exchange rate that is used to
calculate the overall TWA.
Ovll Threshold Sets the threshold for computing the
overall time weighted average
(TWA)
Ovll Criterion Sets the TWA level which consti-
tutes 100% dose for the overall mea-
surement.
Criterion Time Sets how long of an exposure time
for the TWA level you can have
before 100% dose occurs for the
overall measurement.

Larson Davis System 824 Specifications

General

Brand	Larson Davis
Model	System 824
Category	Measuring Instruments
Language	English