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​Model T101
with NumaView™ Software  

UV Fluorescence Analyzer



  • Ranges: 0-50 ppb to 0-10 ppm H2S and up to 20 ppm SO2, user selectable
  • Independent ranges and auto ranging
  • 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
  • Auto zero system
  • 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.

SO2 scrubberReplace As required Yes7.3.3
H2S & SO2 Converter CatalystReplace As required Yes7.3.5
1Particulate filterChange particle filterWeeklyNo7.3.1
Verify test functionsReview and evaluateWeeklyNoAppendix C in manual
Zero/span checkEvaluate offset and slopeWeekly -- 6.3, 6.6, 6.9
1Zero/span calibrationZero and span calibrationEvery 3 months -- 6.2, 6.4, 6.5, 6.7, 6.8
1External zero air scrubber (optional)Exchange chemicalEvery 3 monthsNo7.3.4
1Perform flow checkCheck FlowEvery 6 MonthsNo8.5.2
1Critical flow orifice & sintered filtersReplaceAnnuallyYes7.3.7
Internal IZS Permeation TubeReplaceAs requiredYes7.3.2
Perform pneumatic leak checkVerify Leak TightAnnually or after repairs involving pneumaticsYes8.5.1
2Pump diaphragmReplaceAt least Every 2 years or if pres is ≥ 33.00 in-Hg-AYesSee instruction in diaphragm kit 
PMT sensor hardware calibrationLow-level hardware calibrationOn PMT/ preamp changes  if  0.7 < SLOPE or  SLOPE >1.3Yes8.6.4
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 Technical Support, including all instructions and required parts (see Appendix B of Manual for part numbers).



083730101A - MANUAL, USER, NVS, T101-T102.pdfT101/T102 with NumaView™ Software Manual18048 KB
ESD Fundamentals - 04786.pdfFundamentals of Electro-Static Discharge (ESD)216 KB
NVS Remote Manual - 08492.pdfNumaView™ Software Remote User Guide867 KB
SAL000042D - T101.pdfT101 Specification452 KB
SAL000042D-CN T101.pdfT101规格 (Chinese Specification)1404 KB
SAL000076H - Environmental Instruments Overview.pdfEnvironmental Instruments Overview614 KB
T SERIES_6PG.BROCHURE_2018_web.pdfT Series with NumaView™ Software Brochure9567 KB


Min: 0 - 50 ppb full scale
Max: 0-10,000 ppb full scale
Up to 0-20,000 ppb full scale (selectable, dual range supported)
Measurement Units ppb, ppm, μg/m3, mg/m3 (selectable)
Zero Noise < 0.2 ppb (RMS)
Span Noise​ < 0.5% of reading (RMS) above 50 ppb
Lower Detectable Limit < 0.4 ppb
Zero Drift < 0.5 ppb/24 hours
Span Drift < 0.5% of full scale/24 hours
Response Time < 140 seconds to 95%
1% of full scale
Precision 0.5% of reading above 50 ppb
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
Dimensions (HxWxD) 7” x 17” x 23.5” (178 x 432 x 597 mm)

Specifications are subject to change without notice.
All specifications are based on constant conditions.​
Analyzer 41 lbs (18.3 kg)



​The Model T101 H2S analyzer uses the proven UV fluorescence principle to measure hydrogen sulfide at levels commonly required for ambient air monitoring.

The Model T101 is equipped with an internally mounted catalytic converter set at 315°C to convert H2S to SO2.  A switching mode alternately measures H2S and SO2 while showing both readings concurrently on the front display.

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 T101 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ S​oftware. ​