Carbon Compound Instruments
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​Model T300U

with NumaView™ Software

​Gas Filter Correlation CO Analyzer​





  • Ranges: 0-100 ppb to 0-100 ppm, user selectable
  • Dual 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
  • GFC wheel guaranteed for 5 years
  • 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.

Particulate FilterReplaceWeekly or As NeededNo
Verify Test FunctionsRecord and AnalyzeWeekly or after any Maintenance or RepairNo
Pump DiaphragmReplaceAnnuallyYes
Perform Flow CheckCheck FlowAnnuallyNo
Perform Leak CheckVerify Leak TightAnnually or after any Maintenance or RepairNo
Pneumatic linesExamine and CleanAs NeededYes if cleaned
CleaningCleanAs NeededOnly if cover removed


06864D - T300&T300M Manual.pdfT300/T300M Manual11263 KB
06867D - Addendum, Manual, T300U.pdfT300U Manual Addendum3413 KB
T SERIES_6PG.BROCHURE_2018_web.pdfT Series with NumaView Brochure9567 KB
T300U_Literature.pdfT300U Specification1244 KB


Ranges Min: 0 - 100 ppb full scale
Max: 0 - 100 ppm full scale (selectable, dual-range supported)
Measurement Units ppb, ppm, μg/m3, mg/m3 (selectable)
Zero Noise < 10 ppb (RMS)
Span Noise < 0.5% of reading (RMS) above 2.5 ppm
Lower Detectable Limit  < 20 ppb​
Zero Drift < 20 p​​pb/24 hours​​
Span Drift < 0.5% of reading ​​/24 hours​​ above 5 ppm​
Lag Time 10 seconds​
Rise/Fall Time < 60 seconds to 95%​​
Linearity 1% of f​ull scale
Precision 0.5% of reading
Sample Flow Rate1800 cm3 /min ±20%​​​​
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
8 x analog inputs (0-10V, 12-bit)
4 x digital alarm outputs
Multidrop RS232
3 x 4 - 20mA current outputs
Operating Temperature Range 5 - 40ºC 
10 - 40°C (with US EPA Equivalency)​​
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.​

50​​ lbs (22.7 kg) ​

US EPA: RFCA-1093-093


The Model T300U Trace-level CO analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network.  Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyzer.

The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift.  The objective and field mirrors in the sample cell are gold plated to maximize signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimizes water interference caused by ambient humidity changes.  Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber.  This Auto Reference function corrects zero drift and reduces the effect of interferences.

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 T300U 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. ​