Changing Pid Bulb Selection - MSA SIRIUS Manual De Instrucciones

4.3.4 Changing PID Bulb Selection

Several PID bulb options are available for this instrument. The two bulb options currently
available (with their associated colour codes) are:
• 10.6 eV (GREEN)
• 9.8 eV (RED).
Changing to a different type bulb involves two steps:
• physically installing the bulb (see 7.3 Removing and Cleaning the PID Bulb for
instructions on physically removing and installing the bulb)
• then updating the software to use the correct parameters for the new bulb.
To update the software:
1. Go to the Response Factor page; press the RESET/
2. Scroll to and select -BULB- (Figure 15)
3. Select the electron voltage of the desired bulb.
• If instrument is setup for use with a bulb other than the default 10.6 (GREEN) one,
current bulb voltage will be displayed at turn ON.
WARNING!
It is very important to have an understanding of PID basics when changing your PID
settings. Failure to select the correct Response Factor alarm values (exposure, STEL,
TWA) that match your desired Response Factor, and/or the correct bulb, will result in
erroneous readings.
Figure 15:
Changing PID Bulb Selection
Measuring Gas Concentrations
button.
4
27