USA SALES ONLY

Southeastern Automation, Inc.
PO Box 22820
Knoxville, TN 37933-0820
Phone: (865) 675-3080
Fax: (865) 675-3060
www.southeastern-automation.com
Southeastern Automation Product Sheet
Baldwin™ Pure Probes

Filter Probe PDF Files
Baldwin™-Series Direct Extractive Filter Probes General Purpose Applications

Baldwin's Direct Extractive Filter Probes feature an advanced design to extract sample gas and remove particulate while preventing condensation prior to the gas sample entering the heated sample line.

New Machine-Lathed Sure-Lock™ Filter Assembly Baldwin's new Sure-Lock filter assembly is precision machined and features a unique design to help ensure proper insertion into the assembly and to reduce the possibility of leaks. The filter head is inserted into a notch in the assembly to ensure proper alignment before locking it in place. The o-rings are tightened under compression, rather than being located on the sides of the filter head, to reduce the risk of leakage.
  • Sure Lock™ filter assembly reduces risk of leakage
  • Broad rang of filter elements designed for various applications
  • Insulated enclosure with heat-shrink sample line boot to maintain constant temperature
  • Available with air blowback system
Options Available:
  • Schedule 40, Schedule 80, Hastelloy, and Durinert+ stinger probes
  • Sintered stainless steel, screen mesh, ceramic, glass fiber, and Hastelloy filter elements
  • Air blowback system with 115 VAC, 230 VAC, 12 VDC, or 24 VDC solenoid
  • Solenoid to close sample line when blowback is initiated
  • Gas cooling spool piece for high temperature gas sources
  • Eliminates the complexity of separate temperature controllers heater bands and Kalrez o-rings for high temperature sampling requirements
  • Various size flanges
  • Durinert® or Teflon coated filter assembly option for corrosive gas streams
Baldwin™-Series Direct Extractive Filter Probes
Hazardous Area Applications
Class 1 Division 1 & Class 1 Division 2

Baldwin's Direct Extractive Filter Probes feature an advanced design to extract sample gas and remove particulate while preventing condensation prior to the gas sample entering the heated sample line.

New Machine-Lathed Sure-Lock™ Filter Assembly
Baldwin's new Sure-Lock filter assembly is precision machined and features a unique design to help ensure proper insertion into the assembly and to reduce the possibility of leaks. The filter head is inserted into a notch in the assembly to ensure proper alignment before locking it in place. The o-rings are tightened under compression, rather than being located on the sides of the filter head, to reduce the risk of leakage.
  • Available for Class 1 Division 2 and Class 1 Division 1 applications
  • Sure-lock filter reduces risk of leakage
  • Range of filter elements designed for various applications
  • Available with air blowback system
Options Available:
  • Schedule 40, Schedule 80, Hastelloy, and Durinert+ stinger probes
  • Sintered stainless steel, screen mesh, ceramic, glass fiber, and Hastelloy
    • filter elements
  • Air blowback system with 115 VAC, 230 VAC, 12 VDC, or 24 VDC solenoid
  • Solenoid to close sample line when blowback is initiated
  • Gas cooling spool piece for high temperature gas sources
  • Various size flanges
  • Durinert® or Teflon coated filter assembly option for corrosive gas streams
  • NEMA 4X stainless steel or fiberglass enclosure
Baldwin
Baldwin™ -Series Model 45 Dilution Probe conditioning systems from Perma Pure draw, filter and dilute sample gases in preparation for analysis. The out-of-stack conditioning system dilutes the sample gas 10 to 250 times with dry air, reducing the water vapor content and eliminating high-cost heated lines.

Principle of Operation

A precision, low flow, heated dilution eductor assembly driven by instrument quality air extracts sample gas from the process. The sample passes through a stinger and filter probe to remove particulate. The filter element is selected for its inertness to the sample gas; a ceramic element is standard.

A conditioned source of instrument air connects to the dilution eductor. The flow through the critical orifice in the eductor creates the vacuum that pulls the sample gas through the dilution probe system. This air mixes with the sample, diluting the gas to a lower concentration and dew point. The dilution air and sample gas flow rate may be set by selecting a different orifice size. This orifice is made from precisely machined Monel. The design of the orifice restricts the gas flow to achieve sonic levels or the speed of sound, eliminating the effects of pressure fluctuations downstream.

To maintain a constant dilution ratio, the precision dilution eductor draws the sample in at a slow rate of 25-700 cc/min. An optional fast loop eductor is available to reduce lag time between the probe tip and filter body, ensuring adequate sample supply.
Application Data Sheet

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