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Absolute pressure gauges and leak detectors

Absolute pressure gauges and ultrasonic leak detectors are useful for improving quality and productivity in the vacuum applications for composites

GDH200-14 absolute pressure gauge (precision pressure gauge for low pressures)

Instruments PDF IconAbsolute pressure gauges use the absolute zero of pressure as their reference datum and measure pressure independently of altitude and weather conditions. In composites manufacturing applications, absolute pressure gauges can be used to:

  • Provide faster and more precise leak test (drop test) results
  • Diagnose water and solvent vapour problems causing porosity
  • Identify incomplete or inconsistent laminate evacuation causing dry areas
  • Check vacuum pump performance.
 

GDH200-14 specification


Measuring ranges (absolute pressures)
  • 0-11,000 mbar. Resolve to 1 mbar
  • 0-11 bar. Resolve to 0.001 bar
  • 0-8,250 mm Hg. Resolve to 1 mm
  • 0-160 psi. Resolve to 0.02 psi
Max pressure
  • 13 bar absolute
Accuracy
  • +3 mbar at 25 0C (77 0F)
  • +0.3% of full scale within +25 0C temperature variation
  • Calibration can be improved with access to a high vacuum pump capable of less than 1 mbar
Connection
  • Suits 4 mm (5/32”) ID tube at gauge
  • Supplied as standard with 6 mm OD tube terminating with an 8 mm (5/16”) OD male stem compatible with O-ring sealed compressed air sockets
Power supply
  • 9 V DC battery (included)
  • Auto power off
Case
  • Padded carry case included

VPE ultrasonic leak detector


Ultrasonic leak detectors enable small vacuum leaks inaudible to the human ear to be detected and physically located.  Using a leak detector will considerably speed up the location and repair of vacuum bag leaks.  
 

VPE leak detector specification


Sensitivity
  • -80dB/volt/microbar
Frequency response
  • 38 to 42 kHz
Audio output
  • 0 to 4 kHz (via headset, with volume control)
Display
  • 10 element bar graph
Power supply
  • 9 V DC battery (included)
  • Auto power off
Case
  • Padded carry case included
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