Teledyne 200E - Page 157

Instrument Maintenance Model 200E Instruction Manual
Table 9-1: M200E Preventive Maintenance Schedule (continued)
NO
2
converter
Check
conversion
efficiency
Every 3
months
Yes on
change,
else no
9.3.8
External zero
air scrubber
(optional)
Exchange
chemical
Every 3
months
No 9.3.7
External dryer
(optional)
Replace
chemical
When
indicator
color
changes
No
Ozone filter
Change
chemical
Annually Yes 9.3.3
Reaction cell
window
Clean
Annually or
as
necessary
Yes 9.3.9
DFU filter (air
inlet filter of
Perma Pure
dryer, pump
dust filter
and IZS
filter)
Change
particle filter
Annually No
9.3.2
9.3.7
Pneumatic
sub-system
Check for leaks
in gas flow
paths
Annually or
after
repairs
involving
pneumatics
Yes on
leaks,
else no
11.5.1,
11.5.2
Reaction cell
and O
3
O-
rings and
sintered
filters
Replace Annually
Yes on
Rcell or
PMT O-
rings.
9.3.10
PMT Sensor
Hardware
Calibration
Low-level
hardware
calibration
On PMT/
preamp
changes or
if slope is
outside of
1.0±0.3
Yes 7.9
Pump Rebuild head
when RCEL
pressure
exceeds 10
in-Hg-A (at
sea level)
Yes 9.3.4
NO
2
converter
Replace
converter
Every 3
years or if
conversion
efficiency
drops below
96%
Yes (if
CE factor
is used)
9.3.8
Items shown in bold face are required to maintain full warranty, all other items are strongly
recommended.
142 044100102 Rev A