PortaSens
III
Portable Gas Leak Detector, Model D16
Operation and Maintenance Manual
Rev-A Feb 2018
- 52 -
Timed Sampling
Description
The D16 features a type of “blind sampling” method for obtaining a
more consistent gas reading. The result is a single reading, displayed only
after sampling and filtering a consistent volume of gas. The four steps of the
method are detailed below.
1.
“Sampling” is displayed during the first step, while the pump
draws gas to the sensor for a prescribed time interval to insure a
consistent volume is sampled. This interval is determined by the
“Sample Time” setting.
2.
“Measuring” appears during the second step, while the reading is
computed and filtered for another prescribed time interval to
make certain the reading is sufficiently filtered. This interval is
determined by the “Measure Time” setting.
3.
“Done” appears at the conclusion of the second step, and the
reading is displayed and held.
4.
“Clearing” appears when the “Ok” button is touched, until the
reading falls below a configured gas level, determined by the
“Clear Level” setting.
Table 21 (below) details operation of the “Timed Sampling” method.
Operation
Table 21 Timed Sampling operation.
Description
Display
Timed Sampling Page
On the “Main Display” page, touch the “Menu”
button, and then touch the “Timed Sampling”
button. This will present the “Timed Sampling”
page. The status of the method will be “Off”, as
shown on the right.