20 2 Installation
3.4 Tubing for Tested part (Work) and Master
Select tubes considering the follows:
Cosmo recommends rigid nylon tubes that does not expand by air pressure.
• The higher the test pressure is, the thicker the tubes should be, and the larger the part volume is, the
larger the tube diameter should be.
• For small volume parts (approx. 1000mL or less), use compression type fittings but avoid using push-on
type. However, for the tubing whose diameter is 12mm (12 in) or larger, push-on type fittings should be
used because insert type fittings tends to be loosen over time.
• Make the tubes as short as possible. For the parts with small volume, use the tubes with small diameter.
• Tubes for WORK and MASTER sides should be same length and material if the Mastering compensation
is not used.
• Vacuum type models require large diameter tubes. For case of high vacuum, use tubes with smooth
internal surface.
• Mount the tubes so that they don’t move during leak tests.
Recommended Tube (For test pressure of 800kPa or lower)
Manufacturer: Nitta Corporation
Inch size: N2-1 (for test pressure 200 kPa or lower), N2-2
Millimeter size: N2-4
Manufacturer: SMC Corporation
T Series
For the test pressure 800 kPa or higher:
Use steel tubes such as stainless steel.
Select a steel tube based on its intensity.
3.5 Power Source
Connect to the power with the enclosed power cord. Required power source is AC 100 - 240 V ±10%.
Make sure ground connection is made.
Use the enclosed power cord for the cases the power source is 125 VAC or lower.
Isolation Transformer
LS-R700
Ground
F.G.
Shield Ground
Please connect a power line that
is free from the sources of noise.
Please use a noise suppressing
isolation transformer if noise
comes from the power line.
Electric Shock
Applying power greater than specified could lead electric shock or fire.
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