Model 1820A Helium Detector ,    Model 9822   ,    Model HeliTest
 

Model 1820A Helium Detector is used to detect even the most difficult-to-find leaks in direct buried pressurized telephone cables, underground ducted cables, splice cases, and pressurized air pipe systems.

The Model 1820A has enhanced sensitivity for helium that allows it to pinpoint the smallest leaks before a cable becomes endangered. Easy to operate, the instrument draws in a single sample, analyzes it, and displays the percentage of helium found. The automatic sampling sequence requires only 20 seconds to display the results.

Why Helium? Helium is an ideal tracer gas because it is the lightest inert gas and rises quickly to the surface. In a pressurized system, helium will quickly find a leak and exit through it. Helium is non-toxic, inexpensive, and readily available.


  • Quick display of sample results make leak locating fast and efficient
  • Enhanced sensitivity for helium; not affected by background gases
  • Portable, rugged instrument ideal for field use
  • Digital LCD readout in % helium for quick leak pinpointing
  • Rechargeable battery allows up to 8 hours of continuous use

  • Direct buried pressurized telephone cables
  • Underground ducted cables
  • Pressurized air pipe systems
  • Splice cases

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  • Model 1820A Helium Detector comes complete with the following components:
    • Battery Charger (1820-00266)
    • Complete Probe Assembly (1820-00364)
    • Shoulder Strap
    • Padded Carrying Case (1820-00268)
    • Instruction Manual


  • Operating Range (% helium): 0.01-100%
  • Display ranges: .00-.99%; 1.0-9.9%; 10-100%
  • Operating Temperature Range: 14° F (-10° C) to 131° F (+55° C)
  • Power Source: 12 Volt rechargeable sealed lead-acid battery
  • Operating Time (w/o recharge): Approximately 8 hours of continuos use
  • Operating Cycle: 20 seconds to display results, purge time varies with amount of helium found
  • Probe: 3-piece adjustable metal probe
  • Filter System: In-line filter contained in handle
  • Net Weight: 6.5 pounds (2.94 kg)
  • Dimensions: 4 1/8" high x 8 7/8" deep x 7 1/2" wide; (10.5 cm x 22.5 cm x 19.0 cm)