Teledyne Monitor Labs T200 for NO, NO2, NOx

General Details

The Model T200 NO/NO2/NOx analyzer uses the proven chemiluminescence detection principle, coupled with state-of-the-art electronics to allow accurate and dependable low level measurements for use as an ambient analyzer or dilution CEMS monitor.

A unique AutoZero feature provides superb stability by continuously correcting for zero drift, while advanced Adaptive Filtering allows the analyzer to optimize performance under changing conditions.  The Model T200 includes a permeation inlet dryer for ozone generation to provide excellent reliability with no periodic replacement required.  A catalytic exhaust ozone scrubber is standard for maximum safety and pump life.

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 T200 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​.

  • Ranges: 0-50 ppb to 0-20 ppm, 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
  • Internal zero & span check (optional)
  • Comprehensive internal data logging with programmable averaging periods
  • Ability to log virtually any operating paramete
  • Two-year warranty
Ranges Min: 0 – 50 ppb full scale
Max: 0 – 20,000 ppb full scale (selectable, dual-range supported)
Measurement Units ppb, ppm, μg/m3, mg/m3 (selectable)
Zero Noise < 0.1 ppb (RMS)
Span Noise < 0.2% of reading (RMS) above 50 ppb
Lower Detectable Limit < 0.2 ppb
Zero Drift < 0.5 ppb/24 hours
Span Drift < 0.5% of full scale/24 hours
Response Time < 80 seconds to 95%
Linearity 1% of full scale
Precision 0.5% of reading above 50 ppb
Sample Flow Rate 500 cc/min ±10%
Power Requirements 100V-120V, 220V-240V, 50/60 Hz, Typical power 110W
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 Approval)
Dimensions (HxWxD) 7” x 17” x 23.5” (178 x 432 x 597 mm)
Weight Analyzer: 40 lbs (18 kg)
External pump: 22 lbs (10 kg)

Specifications are subject to change without notice.
All specifications are based on constant conditions.​
US EPA: RFNA-1194-099
EU: EN14211 TÜV Rheinland
QAL1 Certified: EN15267
MCerts: Sira MC050068/11
CNEMC: 质(认)字 No. 2015-028 Report ​​​


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
Particulate filter Change particle filter Weekly (if in stack system: As Needed) No
Zero/span check Evaluate offset and slope Weekly No
Zero/span calibration Zero and span calibration Every 3 months Yes
External zero air scrubber option Exchange chemical Every 3 months No
External dryer option Replace chemical When indicator color changes No
Ozone cleanser Change chemical Annually Yes
Reaction cell window (“optical filter”  Figure 11‑6 in manual) Clean Annually or as necessary Yes
DFU filters Change particle filter Annually No
Pneumatic sub-system Check for leaks in gas flow paths Annually or after repairs involving pneumatics Yes if a leak is repaired
Reaction cell O-rings & sintered filters Replace Annually Yes 
PMT Sensor Hardware Calibration Low-level hardware calibration On PMT/ preamp changes or if slope is outside of 1.0±0.3 Yes
Pump Rebuild head when RCEL pressure exceeds 10 in-Hg-A (at sea level) Yes
Inline Exhaust Scrubber Replace Annually No
NO2 converter Replace converter Every 3 years or if conversion efficiency drops below 96% Yes 
Desiccant  bags Replace Any time PMT housing is opened for maintenance n/a