Rear panel fitting #3: SPAN GAS IN
#FT
1/4” to 1/8” bulkhead red. union
134
Rear panel fitting #2: EXHAUST OUT
#FT38
1/4” to 1/4” bulkhead union
Rear panel fitting #1 (top): SAMPLE IN
#FT
1/4” to 1/8” bulkhead red. union
134
3
1
2
Zero/Span
valve
Option: Zero air scrubber 00433
(includes filter and tubing)
Option: Zero/Span valves 04234
(includes fittings)
Sample/Cal
valve
1/8” FEP
1/8” FEP
1/8” FEP
1/8” FEP
2
1
3
04574A: M200E pneumatic flow diagram with zero / span valves and external zero air scrubber.
Rear panel fitting #5: ZERO AIR IN
#FT
1/4” to 1/8” bulkhead red. union
134
Zero air scrubber
#00433
Filter
#FL3
1/4” FEP
S2:
Vacuum pressure
Sample pressure
S1:
Vacuum manifold
FT12
1/8NPT
1/4”
xxxx=0600
FT12
1/8NPT
1/4”
FT12
1/8NPT
1/4”
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Fittings
FT10 / OR34
Orifice holder
04090 / OR34
FT17
1/4”
hv
AutoZero exit
Vacuum pressure
Exhaust to pump
Rear panel fitting #2: EXHAUST OUT
#FT38
1/4” to 1/4” bulkhead union
Rear panel fitting #1 (top): SAMPLE IN
#FT
1/4” to 1/8” bulkhead red. union
134
NO converter /
O scrubber housing
2
3
NO converter
P/N 04102
2
O3 scrubber / sample exit
Instrument chassis
3
1
2
Auto Zero
valve VA7
NO / NOx
valve VA7
1/4” Tygon
1/4” Tygon
1/4” Tygon
1/4” Tygon
1/4” SS 1/4” SS
1/8”
SS
1/8” SS
1/4” FEP black
1/8” FEP
1/8” FEP
1/8” FEP
1/8” FEP
1/8” FEP black
1/8” FEP
black
1/8” Tee
FT31
FT156
1/8” NPT Tee
FT114
Valve States:
NO / NOx - OFF in NO mode, ON in NOx mode
Auto Zero - OFF in measure mode, ON in AutoZero mode
Sample / Cal - OFF in sample mode, ON in calibration mode
Zero / Span - OFF for zero gas, ON for span gas
Valve Fitting Assignments:
Port 1 - normally closed
Port 2 - common
Port 3 - normally open
xxxx=0600
Flow control assembly
00176-1800
xxxx=0400
Filter
FL3
NO + O
3
Detector
External
Pump
To vent or
charcoal
scrubber
Outside chassis
Inside chassis
1/4” FEP
Fitting
FT63
O filter
3
1/4” FEP
1/8” FEP
black
O3 generator
#0168105 (low)
# (high)01681xx
xxxx=0100
Fittings 04447,
FT297, Ft298
2 x each
1/4” Tygon
O generator
040420200
3
2
1
3
Flow &
pressure
sensor
board
04151
Nafion dryer purge
O scrubber
P/N 042240001
3
Sample
Filter
1/8NPT
1/4tube
FT17
1/8NPT
1/4tube
FT17
1/4” Tygon
Nafion
dryer
O air
3
1/4” Tygon
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Filter
FL3
Orifice 00094xxxx
Orifice assemblies consist of:
O-ring #OR1
O-ring #OR1
Filter #FL1
Spring # HW20
S3: O3 flow
Reaction cell