Testo 350 XL Replacement Sensors Specifications

The Testo Model 350XL is the most innovative portable combustion analyzer to date. Keystone features include interchangeable, precalibrated sensors with temperature control; a CO sample dilution system for test range expansion; complete, onboard sample conditioning; and an abundance of opportunities to interface with the entire system. The cells can be easily replaced or exchanged for greater testing flexibility.
testo 350 sensor
testo 350 sensor seal
Part Number
Range
Accuracy
Resolution
Response Time
0350XLO2
0-25% vol.
  • < 0.2% of m.v.
0.1 vol. %
20 s (t95)
0350XLCOL
0-500 ppm H2 comp.
  • < 2 ppm (0 to 39.9 ppm)
  • < 5% of m.v. (40 to 500 ppm)
0.1 ppm
40 s (t90)
0350XLCO
0-10,000 ppm H2 comp.
  • < 5ppm (0 to 99 ppm)
  • < 5% of m.v. (100 to 2,000 ppm)
  • < 10% of m.v. (2,001 to 3,000 ppm)
1 ppm
40 s (t90)
0350XLNO2
0-500 ppm
  • < 5 ppm (0 to 99 ppm)
  • < 5% of m.v. (500 ppm)
0.1 ppm
40 s (t90)
0350XLSO2
0-5,000 ppm
  • < 5ppm (0 to 99 ppm)
  • < 5% of m.v. (100 to 2,000 ppm)
  • < 10% of m.v. (2,001 to 5,000 ppm)
1 ppm
30 s (t90)
0350XLNOL
0-300 ppm
  • < 2 ppm (0 to 39.9 ppm)
  • < 5% of m.v. (300 ppm)
0.1 ppm
30 s (t90)
0350XLNO
0-3,000 ppm
  • < 5ppm (0 to 99 ppm)
  • < 5% of m.v. (100 to 2,000 ppm)
  • < 10% of m.v. (2,001 to 3,000 ppm)
1 ppm
30 s (t90)
0350XLHC
0.01-4% vol.
  • < 400 ppm (100 to 4,000 ppm)
  • < 10% of m.v. (> 4,000 ppm)
0.1 ppm
40 s (t90)
0350XLH2S
0-300 ppm
  • < 2 ppm (0 to 39.9 ppm)
  • < 5% of m.v. (40 to 300 ppm)
0.1 ppm
35 s (t90)
0350XLCO2
0-50% vol.
  • ± 0.3%vol.+1% of m.v. (0-25%vol.)
  • ± 0.5%vol.+1.5% of m.v.(>25-50%)
  • 0.01%vol (0-25% vol.)
  • 0.01%vol (>25% vol.)
10 s (t90)
CO2 (Calculated)
O to CO2 max vol.%
  • Calculated from O2
0.1 vol. %
Range
Accuracy
Resolution
Differ. Press. 1
± 80" H2O
  • < 1% m.v. (-20" to 80" H2O)
  • < 1% m.v. (+20" to +80" H2O)
  • < 0.5% m.v. (-19" to +19" H2O)
0.01" H2O
Differ. Press. 2
± 16 " H2O
  • < 1% m.v. (16" to 1.2 " H2O)
  • < 1% m.v. (+16" to +1.2" H2O)
  • < 0.5% m.v. (-1.2" to +1.2" H2O)
0.01" H2O
Efficiency
0-100%
  
0.1%
Flow Velocity
0-7900 ft/min
 
10 ft/min
Current
0-20 mA
  • ± 0.04 mA
± 0.01 mA
Voltage
0-10 V
  • ± 0.01 V
± 0.01 V
rpm
20-20,000 rpm
 
1 rpm
Temperature
-40-2192 °F
  • ± 0.9 °F (-40 TO +212 °F)
  • ± 0.5% m.v. (+212 TO +2,192 °F)
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