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Model T100U
with NumaView™ Software

 Trace-level UV Fluorescence SO2 Analyzer



  • Ranges: 0-5 ppb to 0-20,000 ppb, user selectable
  • Selectable ranges, with dual range capability
  • Large, vivid, and durable color graphics display with touch screen interface
  • Ethernet, RS-232, and (optional) USB com ports
  • Front panel USB connections for peripheral devices and firmware upgrades
  • 8 analog inputs (optional)
  • Adaptive signal filtering optimizes response time
  • Temperature & pressure compensation
  • Comprehensive internal data logging with programmable averaging periods
  • Ability to log virtually any operating parameter
  • Two-year warranty



​The following table provides a list of items that  need regular maintenance to ensure your product remains in good working condition.

ItemActionFrequencyCal CheckManual Section
1Particulate filterChange particle filterWeekly or as necessaryNo10.3.1
Verify test functionsReview and evaluateWeeklyNo10.2; Appendix C 
Zero/span checkEvaluate offset and slopeWeekly-- 9.3, 9.6, 9.9
1Zero/span calibrationZero and span calibrationEvery 3 months-- 9.2, 9.4, 9.5, 9.7, 9.8
1External zero air scrubber (optional)Exchange chemicalEvery 3 monthsNo10.3.3
1Perform flow checkCheck FlowEvery 6 MonthsNo10.3.7
Internal IZS Permeation TubeReplaceAnnuallyYes10.3.2
Perform pneumatic leak checkVerify Leak TightAnnually or after repairs involving pneumaticsYes10.3.6
2Pump diaphragmReplaceAnnuallyYes Refer to diaphragm kit instructions
Calibrate UV Lamp OutputPerform lAMP CAL Prior to zero/span calibration or PMT hardware calibration-- 5.9.6 &
3PMT sensor hardware calibrationLow-level hardware calibrationOn PMT/ preamp changes  ifYes11.7.2.8
0.7 < slope or
slope >1.3
1Sample chamber optics Clean chamber, windows and filtersAs necessaryYes11.7.2.2 &
1Critical flow orifice & sintered filtersReplaceAs necessaryYes10.3.4


1 These items are required to maintain full warranty; all other items are strongly recommended.

2 A pump rebuild kit is available from Teledyne API's Technical Support, including all instructions and required parts.

3 Replace desiccant bags each time the inspection plate for the sensor assembly is removed.

*Instrument maintenance is almost identical to that in the T100. The T100U uses a 1 micron sample filter, instead of the 5 micron sample filter used in the T100.


ESD Fundamentals - 04786.pdfFundamentals of Electro-Static Discharge (ESD)216 KB
NVS Remote Manual - 08492.pdfNumaView™ Software Remote User Guide867 KB
SAL000041G - T100U.pdfT100U Specification825 KB
SAL000041G-CN T100U.pdfT100U规格 (Chinese Specification)1348 KB
SAL000076H - Environmental Instruments Overview.pdfEnvironmental Instruments Overview614 KB
T SERIES_6PG.BROCHURE_2018_web.pdfT Series with NumaView™ Software Brochure9567 KB
T100 NVS Manual - 083730100.pdfT100/T100U/T100H with NumaView™ Software Manual15268 KB


Ranges Min: 0-5 ppb full scale
Max: 0-20,000 ppb full scale (selectable, dual ranges)
Measurement Units ppb, ppm, μg/m3, mg/m3 (selectable)
Zero Noise 25 ppt (RMS)
Span Noise 0.5% of reading (RMS) above 5 ppb
Lower Detectable Limit < 50 ppt
Zero Drift < 0.2 ppb/24 hours
Span Drift < 0.5% of full scale/24 hours
Response Time < 170 seconds to 95%
1% of full scale
Precision 0.5% of reading
Sample Flow Rate 650 cc/min ±10%
Power Requirements 100V-120V, 220V-240V, 50/60 Hz
Analog Output Ranges 10V, 5V, 1V, 0.1V (selectable)
Recorder Offset ±10%
Included I/O 1 x Ethernet: 10/100Base-T
2 x RS232 (300-115,200 baud)
2 x USB device ports
8 x opto-isolated digital outputs
6 x opto-isolated digital inputs
4 x analog outputs
Optional I/O 1 x USB com port
1 x RS485
4 x digital alarm outputs
Multidrop RS232
3 x 4 - 20mA current outputs
Operating Temperature Range 5 - 40ºC (with US EPA Equivalency)
Dimensions (HxWxD) 7” x 17” x 23.5” (178 x 432 x 597 mm)
Weight 45 lbs (20.5 kg) ​

Specifications are subject to change without notice.
All specifications are based on constant conditions.​
US EPA: EQSA-0495-100 ​​


The Model T100U Trace-level SO2 analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network.  It uses the proven UV fluorescence principle, and is designed to allow ultra-sensitive SO2 measurements while still meeting the requirements for use as a US EPA compliance analyzer.

The analyzer uses both the light and dark phases of the pulsed UV light source to continuously detect and correct for electronic noise, giving exceptionally stable and sensitive performance.  A separate UV detector allows the instrument to continuously correct for variations in lamp intensity.  Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift, and a reference detector to correct for changes in UV lamp intensity.  A hydrocarbon “kicker” and advanced optical design combine to prevent inaccuracies due to interferents.

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability.  All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.

The Model T100U comes  with NumaView  Software. NumaView Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView Software.