Preventive maintenance procedures

Base Unit
BU1 - Changing the DFU filter and the zero air cartridge
BU2a - Maintaining the pump (new K model)
BU2b - Maintaining the pump (old model)
BU3a - Replacing the sample filter (classic version)
BU3b - Replacing the sample filter (ext life version)
BU4a - Cleaning the air conditioner (2D and 4D airpointer)
BU4b - Cleaning the air conditionner (HC airpointer)
BU5 - Leak-checking the airpointer and the airpointer modules
BU6 - Performing a sample flow check
BU7 - Replacing the miniUPS battery
BU8 - Unmounting and cleaning the complete air conditioner (HC airpointer)
BU9 - Cleaning the sample inlet

BTEX module
BTEX1 - Replacing the GC
BTEX2 - Replacing the PID lamp
BTEX3 - Replacing the carrier gas filter

CO module (API bench)
CO A2 - Checking the capillary and replacing the DFU filter
CO A3 - Refilling the CO cylinder

CO module (Thermo bench)
CO T2 - Checking the capillary and replacing the DFU filter
CO T3 - Refilling the CO cylinder

H2S module (API bench)
H2S A1 - Replacing the scrubber

H2S module (Thermo bench)
H2S T1 - Replacing the scrubber

multiPM module
PM1 - Checking the capillary and replacing the DFU filter
PM2 - Cleaning the sample inlet

NOx module (API bench)
NOx A2 - Replacing the DFU filter
NOx A3 - Replacing the critical orifices, o-rings & capillaries
NOx A4 - Cleaning the reaction cell
NOx A5 - Replacing the permeation tube

NOx module (Thermo bench)
NOx T2 - Replacing the DFU filter
NOx T4 - Cleaning the reaction cell
NOx T5 - Replacing the permeation tube

O3 module (API bench)
O3 A1 - Replacing the scrubber

O3 module (Thermo bench)
O3 T1 - Replacing the scrubber

SO2 module (API bench)
SO2 A5 - Replacing the permeation tube

SO2 module (Thermo bench)
SO2 T5 - Replacing the permeation tube