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CEMS & Air Analyzer Spare Parts

Find Thermo Scientific iSeries gas analyzer and particulate monitoring spare parts by part number, component or instrument. Browse pumps, filters, sensors, circuit boards, valves and maintenance parts below, or send your instrument details for help selecting a replacement.

Common iSeries components42i NOx analyzer43i SO2 analyzer48i CO analyzer49i O3 analyzer146i calibratorModel 111Model 11505014i / 5030i monitors2025i sampler

Common iSeries components

Part numberComponentSelection notes
111553-01Air pumpiSeries; 43i, 48i and 49i
109141-00MotherboardiSeries common component
100907-0024 VDC faniSeries common component
101023-00Pressure sensoriSeries common component
101055-00AC input filter / receptacle assemblyiSeries common component
101681-0024 V power supplyiSeries common component
102496-00DisplayiSeries common component
102701-00Filter holderiSeries common component
102055-00Flow sensoriSeries; 43i, 48i and 49i
4320-PKFilter membranes (25 per box)iSeries common component
4800-PKO-ringiSeries common component
108002-00Pump diaphragm / repair kitiSeries; 43i, 48i and 49i

42i NOx analyzer

Part numberComponentSelection notes
4119Ozone capillaryOzone line
4127Sample gas capillarySample gas line
9212-PKCapillary holder O-ringBelow the capillary holder
109604-00Molybdenum converter heater—
101009-00Molybdenum converter assembly—
9269-EIFMolybdenum converter cartridge—
9973Ozone generator—
101419-00Ozone generator high-voltage assembly—
100536-00Measurement interface board—
9367Photomultiplier tube—
1010324-00Photomultiplier tube socket—
100856-00Temperature control board—
101020-00Thermoelectric cooler assembly—
4808Cooler-side reaction chamber O-ring—
101021-00Flow sensor—
101390-00NO/NOx switching solenoid valve—
101620-00Ozone flow switch—
6998Desiccant—
101016-00Ozone silica scrubber—
101024-00PMT high-voltage supplyAlso listed for the 43i SO2 analyzer
100545-00Signal input board—
102648-01Reaction chamber—
9454Reaction chamber, cooler side—
9455Reaction chamber, converter side—
433842i optical filter—
101399-00Transformer—
117900-01Air pumpFor use after August 2020
107751-00Pump diaphragm / repair kitFor pump 101011-01
117901-00Pump diaphragm / repair kitFor pump 117900-01
110570-01Processor board—

43i SO2 analyzer

Part numberComponentSelection notes
8919Sample gas capillary—
8666UV lamp—
8774UV lamp socket—
120242-00Light intensity detector—
113507-00Photomultiplier tube—
8746-EIFHydrocarbon kicker / scrubber—
110570-07Processor board—
100862-00Measurement interface board—
100883-00Signal amplifier board—
8888-EIFOptical filter assembly—

48i CO analyzer

Part numberComponentSelection notes
7336Capillary—
110570-10Processor board—
7358-EIFGas correlation wheel—
7361-EIFInfrared source—
117999-00Measurement interface board—
101427-00Gas correlation wheel motor—
101780-00Infrared detectorDetector

49i O3 analyzer

Part numberComponentSelection notes
4124Capillary—
110570-15Processor board—
8540UV lamp—
14697Ozone scrubber—
100874-00Measurement interface board—
102441-01Solenoid valve assembly—
102443-00Solenoid valve—
100895-00Ozone power board—
8542-EIFReaction chamber tube—
120129-00Light intensity detectorDetector assembly

146i calibrator

Part numberComponentSelection notes
100895-00Ozone generator control board—
102488-0210 L mass flow controller assembly—
102494-02100 mL mass flow controller assembly—
102631-0010 L mass flow controller—
102628-00100 mL mass flow controller—
110570-17Processor board—
110430-00Ozone lamp—
103206-00Calibration gas solenoid valve—
102570-00Photometer assembly—
110608-00Ozone generator assembly—
AQ-0121PTFE solenoid valve—
1516026Calibration solenoid valve—
8645-EIFOzone generator lamp—
100880-00Measurement interface board—

Model 111

Part numberComponentSelection notes
8186-01CO converter furnace—
4291Charcoal canister with charcoal—
4158Activated charcoal—
7075Molecular sieve oxidizer—
4233Temperature controller—
4291-AEmpty canister—
6996Oxidizer canister with media—

Model 1150

Part numberComponentSelection notes
8186-02Heating furnace—

5014i / 5030i monitors

Part numberComponentSelection notes
105869-00DetectorLAN4335
30-012126Three-way valve5030i only
57-002758Filter5030i only
106443-00Filter tape—
425454008Preamplifier—
110570-29Processor board—
104290-00Measurement interface board—
106535-00Heater, earlier version—
110836-00Sampling pump—
106470-00Proportional valve—
104578-00Pressure board—
104100-00Temperature / humidity board—
104381-00Measurement platform sealing ring—
108151-00Nephelometer5030i only
AQ-0066Tripod—
108111-00Flow-path temperature sensor—
105938-00Photo-interrupt board—
106037-00Filter tape loading motor—
106032-00Filter tape advance motor—
106536-00Temperature / humidity assembly with shield—
106923-00Pressure solenoid valve—
1518707Mechanical platform—
105868-00Complete platform assembly—
107500-00Source protection membrane—
105880-00Detector protection membrane—
115369-00Sampling pump maintenance kit—
SE240-136PM10 inlet O-ring—
SE246-81PM10 nozzle O-ring—
59-008986VSCC PM2.5 separator O-ring pack—
110182-005030i heater O-ring—

2025i sampler

Part numberComponentSelection notes
22-005957Lower V-seal—
22-010318Upper V-seal—

Get the correct replacement part

Send your part number, instrument model, serial number and required quantity. For pump kits, electronic boards and updated instrument versions, include a label photo to help confirm the correct version.

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