The instrument air connections must always be made through the attached flame arrestors.
The Air Treater must be firmly mounted to the wall, the floor, or a rack on which the analyzer
is mounted. Install the Air Treater so that it cannot be damaged during normal maintenance
operations.
4.8.2 Air Treater Specifications
Table 4-3 Air Treater
Dimensions Approximately 210 x 210 x 300 mm (8
1
/
4
" x 8
1
/
4
" x 11
3
/
4
") (w x d x h)
A minimum of 400 mm (15
3
/
4
") total clearance is required in depth for removal of the bottom cover
Weight 10.5 kg (23 pounds)
Power requirements 115 or 230 VAC, 50 watts
Installation Panel, rack, or wall mounted near the analyzer
Construction 300 Series Stainless Steel in contact with the treated air. Mounted in an explosion proof aluminum
enclosure
Input air quality
● Meet or exceed ISO8573-4 (Class 3) requirements.
● Maximum total hydrocarbon content less than 1 ppm and
● Dew point -20°C (-4°F)
Input air flow
● 250 to 1500 ml/min (depending on requirements)
Input pressure 34 to 1034 kPa (5 to 150 psig), depending on flow rate desired
Warm-up time Approximately 90 minutes
Treated air purity Up to 95% of the trace hydrocarbons typically found in instrument quality air are removed by the
air treater
Catalyst life Catalyst is not consumed as part of the air treatment so the life is indefinite. However the catalyst
can be poisoned when exposed to sulfur compounds.
Safety
● CSA certified for use in Class I, Division 1, Groups B, C, D Hazardous Locations for US and
Canada
● ATEX certified for use in Zone 1 or 2, gas group IIB + H2 explosive atmosphere (II 2 G) (Ex d
IIB+H2 T5 Gb)
● Temperature Class Rating: T5
Flame Ionization Detector
4.8 Air Treater
Maxum Edition II Detectors
56 Service Manual, May 2018, A5E42019847001
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