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testo 335
Analyzer for the Industrial, Engine and Process Markets
 
The 335 combustion analyzer is engineered to deliver highly accurate testing
quickly and reliably. It offers an exceptional testing range, intuitive operation,
and rugged portability that combine to deliver superior performance for the
most demanding applications. The 335 is ideal for hi-range engine testing to
low NOx burner and boiler tuning with field exchangeable sensors. The more
you look, the more you need the testo 335 combustion solution.
 

Engine and Combustion
Tuning Simplified
 
 The new 335 offers a powerful combination of advanced measuring capabilities that simplify boiler and burner tuning, set up, efficiency tuning, and troubleshooting. With the option of an NO or NO low sensor, NOx tuning and testing is simplified.
Plug and Play Sensors
 
 At the heart of the 335 are testo’s innovative pre-calibrated plug and play Smart Sensors. Plus they can be replaced in the field without calibration gases. Sensor output and calibration log can be displayed or printed to ensure accuracy. Auto dilution expands CO to 50,000 ppm.
Built-in Diagnostics
 
 More built-in conveniences include advanced moisture protection, intuitive diagnostics, expandable probe system and powerful data management. The unique "i" button is at your fingertips. Read battery levels, gas flow rate and water trap with a single press of a button.
 
Sampling Probes
 
 The 335 has a large array of sampling probe options to meet the
most demanding applications.
Technical Data
 
Parameter Measuring range Accuracy Resolution
O2 0 to 25 Vol.% ±0.2 Vol.% 0.01 Vol.%
CO (H2 compensated) 0 to 10,000 ppm ±10 ppm or ±10% of mv
  (0 to 200 ppm)
±20 ppm or ±5% of mv
  (201 to 2,000 ppm)
±10% of mv (2,001 to 10,000 ppm)		 1 ppm
COlow (H2 compensated) 0 to 500 ppm ±2 ppm (0 to 39.9 ppm)
±5% of mv (remaining range)*		 0.1 ppm
NO 0 to 3,000 ppm ±5 ppm (0 to 99 ppm)
±5% of mv (100 to 1,999 ppm)
±10% of mv (2,000 to 3,000 ppm)		 1 ppm
NOlow 0 to 300 ppm ±2 ppm (0 to 39.9 ppm)
±5% of mv (remaining range)		 0.1 ppm
NO2** 0 to 500 ppm ±10 ppm (0 to 199 ppm)
±5% of mv (remaining range)		 0.1 ppm
SO2** 0 to 5,000 ppm ±10 ppm (0 to 99 ppm)
±10% of mv (remaining range)		 1 ppm
CO2 calc. 0 – CO2 max.
0.1 Vol. %		    
Temperature
Probe type K (NiCr-Ni)		 -40 to +2192°F 0.9°F (32 to 212°F)
±0.5% of rdg. (remaining range)		 0.1°F
Differential pressure
 
Absolute pressure		 -80 to 80 "H20
 
240 to 460 "H20		 0.2 "H20 (-20 to 20 "H20)
±1.5% of rdg. (remaining range)
4 " H20		 0.04 "H20
 
0.4"H20
Efficiency
Flue gas loss		 0 to 120%
0 to 99.9%		 calculated
calculated		  
© 2010 testo, USA