Thermo Scientific - Air Quality Instruments

Model PRO902C Modular - External Low Flow Dilution Probe



PRO902C Probe handles the toughest environments while offering significant advantages over typical in-stack dilution probes.The dilution extractive technology in combination with the thermo-electric cooler provides accurate and concise readings available in both terms of concentration and mass-emission rates. aturing an O2 fuel cell for oxygen measurement at the probe site, values are displayed and adjusted from the rack location. The PRO902C also uses an automatic purge of the filter and barrel that can be manually timed for blowback operation. The regulation of the filter temperature is performed by a dedicated, rack-mounted PID controller with alarm for user notification.

  • O2 fuel cell for oxygen measurement at the probe site
  • Automatically purges the probe filter and barrel
  • Filter temperature is controlled by dedicated rack mounted PID controllers
  • O2 levels are displayed and adjusted from the rack location
  • Heated sample line is not required
  • Developed to operate properly in harsh, dirty environments

Ordering Alerts: PRO902C Dry Basis Dilution Probe with Electrochemical Oxygen Measurement (PRO902C- __ __)
Voltage Selection

1 = 110V 50/60Hz Included
2 = 220V 50/60Hz
Orifice Flow Rate Selection (Dilution Ratio)
5L/min. Total Sample FlowB = 20:1 Dilution Ratio (250cc Orifice)
E = 50:1 Dilution Ratio (100cc Orifice)
G = 100:1 Dilution Ratio (50cc Orifice)
10L/min. Total Sample Flow
N = 50:1 Dilution Ratio (200cc Orifice)
P = 100:1 Dilution Ratio (100cc Orifice)
Other Options (Consult Factory)
Sample Pipe, Hastelloy (up to 52 in.
Sample Pipe, Hastelloy (52 to 104 in.)
Sample Pipe, Hastelloy (over 104 in.)

Compliance: Designed to meet EPA requirements as defined in 40 CFR 75 and 40 CFR 60 for continuous emission monitoring, using the dilution extractive technology for dry basis measurement.

Recommended for:
Utility boilers
Pulp mills
Waste-to-energy facilities
Petrochemical plants
Gas plants
Co-generation facilities

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