Nitrogen Compound Instruments
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 ​Model T500U

with NumaView™ Software

CAPS Trace-level NO2 Analyzer

 

 Features

 

  • True, Direct NO2 measurement
  • Extended maintenance interval
  • No converter or reagent required
  • No known ambient air interferences
  • Fast response
  • Exceptional measurement sensitivity
  • Low power consumption
  • Ranges: 0-5 ppb to 0-1 ppm, user selectable
  • Adaptive signal filtering optimizes response time
  • Temperature & Pressure compensation
  • All standard T-Series platform features
  • Two-year warranty

 Maintenance

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

Item

Action

Frequency

Cal Check Required

Test Functions

Review and evaluate

Weekly

No

Zero/Span Check

Evaluate offset and slope

Weekly

No

Zero/Span Calibration

Zero and span calibration

Every 3 months

Yes

Sample Filter

Change sample filter

Annually (may need more frequently in a high dust load environment)

No

AREF Filter and Charcoal Filter

Change both

Annually

Yes

Spectrometer Mirrors

Contact Technical Support

As necessary due to excessive Measured Loss

Yes

Pneumatic sub-system

Check for leaks in gas flow paths

Annually or after repairs involving pneumatics

Yes if a leak is repaired

Internal Pump

Replace

Measured Flow less than 800 cm3/min

Yes​


 Downloads

  
  
  
07834D - Manual, T500U.pdfT500U Manual5606 KB
08296D - Addendum,  NumaView(TM)Software-for-Analyzers.pdfNumaView™ Software Addendum for Analyzers7097 KB
ESD Fundamentals - 04786.pdfFundamentals of Electro-Static Discharge (ESD)216 KB
NVS Remote Manual - 08492.pdfNumaView™ Software Remote User Guide867 KB
SAL000078G - T500U.pdfT500U Specification780 KB
SAL000078G-CN T500U.pdfT500U规格 (Chinese Specification)5243 KB
SAL000082D - T500U Brochure.pdfT500U Brochure6871 KB
T SERIES_6PG.BROCHURE_2018_web.pdfT Series with NumaView™ Software Brochure9567 KB

 Specifications

Ranges
0 - 5 ppb to 0 - 1 ppm NO2
Measurement Units
ppb, ppm, μg/m3, mg/m3 (selectable)
Zero Noise
< 20 ppt (RMS)
Span Noise
< 0.2% of reading (RMS) + 20 ppt
Lower Detectable Limit < 40 ppt
Zero Drift
< 0.1 ppb / 24 hours
Span Drift
​< 0.5% of reading / 24 hours
Rise/Fall Time < 30 seconds to 95%
Linearity
1% of full scale
Precision 0.5% of reading above 5 ppb
Sample Flow Rate
900 cm3/min ±10%
Power Requirements 80W; 100-250VAC (50-60Hz)
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 - 40°C (with US EPA Approval)
Dimensions (HxWxD) 7” x 17” x 23.5” (178 x 432 x 597 mm)
Weight
33 lbs (15kg)
​ Certifications
​US EPA: Federal Equivalent Method (EQNA-0514-212)
EU: EN14211 TÜV Rheinland​
QAL1 Certified: EN15267​​
MCerts: Sira MC160304/00
Specifications are subject to change without notice.
All specifications are based on constant conditions.​
​​

 Description

 

The T500U CAPS NO2 Analyzer represents the next generation of criteria pollutant monitoring technology for the direct measurement of Nitrogen Dioxide (NO2) in air. The instrument utilizes a patented Cavity Attenuated Phase Shift (CAPS) technique to provide an extremely sensitive, fast and accurate NO2 measurement in a cost effective and low maintenance instrument package.

The T500U provides a direct NO2 measurement, eliminating the need for catalytic conversion or reagents which introduce measurement artifacts inherent in traditional heated metal converter based chemiluminescence instruments. The CAPS measurement approach also reduces maintenance items, and removes the nee​d for hazardous materials and high temperature scrubbers within the instrument. The T500U has an expec​​​ted maintenance interval of one year under typical ambient monitoring conditions.

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/0, 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 T500U 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.