SE-RDA User Instructions 100507-03 B
Copyright © 2021 The S.E.A. Group
10
Operation of the SE-RDA
1.
Set the SE-RDA to STANDBY.
2.
Set the SE-RDA to RECORD. Wait until the steady RED LED changes to blinking
RED (about 50 sec). Do not disturb the unit during this warm-up period.
3.
Don the respirator and SE-RDA.
4.
Perform the workplace tasks. The wearer should keep in mind:
a.
Perform the tasks as per the normal routine.
b.
Take care not to snag or kink the pressure tube. Periodically check the
pressure tube.
c.
Periodically check that the LED is blinking RED (recording).
d.
Protect the unit from extreme environmental conditions (e.g.: hard
knocks, extreme heat).
e.
Leave the SE-RDA in RECORD mode even during breaks and when the
respirator has been doffed temporarily.
5.
When the workplace test is completed, doff the respirator.
6.
Turn the SE-RDA OFF.
Important
If the SE-RDA is inadvertently turned off during a test, the recorded data must be
downloaded to a PC before resuming the test. When recording is next started, all
recorded data in the SE-RDA unit will be overwritten.
NOTE: It is recommended, but not essential, to start recording before donning the
respirator. This results in a steady, zero-pressure trace at the start of the logged data,
which is useful later on when analysing the data. See section Vertical offset correction.
