Bacharach TLV Sniffer Rental

  • Measures 1 to 10,000 ppm volatile flammable vapor, or up to 100,000 ppm with optional dilution probe accessory.
  • Three operation modes: 0 to 100 ppm, 0 to 1000 ppm, and 0 to 10,000 ppm.
  • Detection Method: Catalytically oxidizes gas in a pumped-in sample of air by means of a catalyst-coated resistance element.
  • Calibration Reference: 500 ppm Hexane


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The portable TLV Sniffer is an extremely sensitive combustible gas and vapor sensing instrument with an overall detecting sensitivity range of 1 to 10,000 parts of gas or volatile flammable vapor per million parts of air (by volume). Measurement levels of up to 100,000 ppm are achievable with the optional dilution probe accessory. The TLV Sniffer catalytically oxidizes gas in a pumped-in sample of air by means of a catalyst-coated resistance element. The reading is obtained by measuring the electrical balance of the catalytic element as compared to the resistance of a reference element. The TLV sniffer readings are resistant to humidity and temperature since both the active and reference elements are affected equally by these conditions. The rental monitor comes pre-calibrated to 500 ppm hexane by our environmental specialists, including a calibration record.

Function Measurement of low concentrations of flammable vapors, relative to health, safety, and pollution control standards 
Standard Measuring Ranges Calibrated on Hexane: 0-100, 0-1000, and 0-10,000 ppm<br />With Optional Dilution probe: 0-100, 0-1000, 0-10,000, 0-100,000 ppm (0-10% by volume)
Accuracy / Reliability The extent to which meter readings correspond to actual parts per million of combustible gases in sampled air depend upon (1) the internal electrical stability of the instrument, (2) proper calibration of the instrument on gas mixtures of known concentration, and (3) purity of the air sample used for meter pointer zero setting.
Sensor Type Catalytic combustion - long-life, non reductive and resistant to poisoning by lead and silicones
Minimum Detection Concentrations 2 ppm
Sampling Method Integral pump
Sample Flow 1,750 cc/minute nominal (with inline filter and hose probe assembly) 
Recorder Output Range: 0-100 MV; Impedance: 10,000 ohms or greater 
Audible Alarms Pulsating tone activated when user adjusted set point is exceeded 
Battery Capacity Better than 8 Hours continuous operation with nickel cadmium rechargeable batteries 
Display Precision analog meter with Parallax Mirror scale and clear graduations
Operating Temperature 14 to 120 °F (-10 to 49 °C)
Response Time 90% of final reading in less than 30 seconds
Warm-Up Time One minute
Housing Construction Reinforced metal top, end panels and carrying handle with tough ABS Plastic wrap around side cover
Dimensions 9" L x 3.75" W x 6.625" H
Weight 5 lb.
Hazardous Area Use FM approved Intrinsically Safe for use in Class I, Division I, Groups C and D; and Non-Incendive, for Class I, Division 2, Groups A, B, C, and D
  • TLV Sniffer
  • Sample Hose and Wand
  • Water Trap Filter
  • Battery Charger
  • Carrying Strap
  • Hard Case
  • Calibration Record