Agilent PHD-4 Portable Helium Leak Detector

The Agilent PHD-4 Portable Helium Leak Detector identifies small, imperceptible leaks of helium and air pressure, sensitive to concentrations of helium as small as 2 ppm. Surpassing the capacity of other leak detection methods like bubble testing, the Agilent PHD-4 detects emissions equivalent to a leak rate of 5x 10^-6 atm-cc/sec. Precise detection selectivity ensures helium leaks are isolated in testing, ignoring all other gases and emissions. This leak detector's sensitivity can be attributed to selective ion pump detection technology, which is rendered simple and accessible for technicians by the microprocessor-controlled system interface. Sensitivity is adjustable to mitigate helium consumption and the cost of performing testing. Wait three minutes and your Agilent PHD-4 will finish performing a fully automatic start-up procedure, operating either on battery power or connected to an outlet.

Product Info

Lowest detectable helium concentration	2 parts per million
Smallest detectable leak	5 × 10-6 atm-cc/sec, 5 × 10-6 mbar-l/sec, 5 × 10-7 Pa-m3/sec
Response time	<2 seconds
Recovery time (from 50 to 0 ppm)	<10 seconds
Start-up time, including self-check	3 minutes (approximate)
Power requirements	12 VDC from battery pack, car battery, or transformer
Transformer power supply	110-240V 50-60 Hz
Sealed, detachable battery pack	4 hours of operation with full charge
Ambient storage temperature	-20 to +60 °C (4 to 140 °F)
Ambient operating temperature	-5 to +35 °C (20 to 95 °F)
Maximum relative humidity	90%
Weight, basic module with battery	5.7 lbs (2.6 kg)
Background suppression (zeroing) & turning	Automatic

Wide range of uses: replaces or can be used with existing methods such as bubble test or pressure decay
State-of-the-art microprocessor control allows great simplicity of operation
Fully automatic start-up
Excellent selectivity for helium allows you to read helium leaks and ignore all other gases
Helium sensitivity can be adjusted as required to minimize test costs and helium consumption
Can operate either on battery power or connected to an outlet