PHD-4™ Portable Helium Detector

The PHD-4 is a portable, compact leak detector that can run on its own battery for up to four hours. Weighing only 5.7 lbs. (2.6 kg) including the battery, it can be taken anywhere.

The PHD-4 can detect very small leaks in objects that have a slight helium/air pressure inside. It is sensitive to helium concentrations as small as 2 parts per million. That is equivalent to a leak rate of 5 × 10-6 atm-cc/sec, which is far superior to the performance of other means of detecting leaks, such as bubble-testing. To do this, it relies on Varian’s proprietary and patented SIPD (Selective Ion Pump Detection) technology.

Controlled by a microprocessor, the PHD-4 is easy to use. No training is required. All tuning and zeroing are handled automatically. The display can be set to use any of four languages (English, French, German, and Italian).
The basic PHD-4 package includes:

• PHD-4 basic module
• Transformer/battery charger (115V-240V)
• Carrying strap
• 15-pin I/O connector
• Instruction manual on CD-ROM

The complete PHD-4 package includes everything in the basic package plus:

• Spare battery
• Travel case
• Probe set

The PHD-4 replacement parts kit includes:

• Sampling pump with fittings
• Probe with sampling line
• Probe tip filter
• Internal filter kit (5 units)