Cosmo LS-R700 User Manual

2 Installation 19
2
Pressure Connection Precautions
• The source pressure must be clean and dry. When there is water or oil inside of the plant compressor,
an oil mist separator must be used. When there is a lot of water and oil in the compressor, use two or
more separators.
• The lubricated air source should never be connected to the tester.
• Avoid direct wind from cooling vents. It may cause due condensation inside the tubes.
• When using an oil lubricated vacuum pump:
A solenoid valve which opens to atmosphere should be used to prevent oil from entering the LS-R700
when the pump is turned off. The tester should also be installed at a higher level than the vacuum
pump.
• The pressure of the air source must be sufficiently higher than the test pressure and stable
• The air source must have enough flow capacity for the test as well.
• Source pressure should be regulated to at least 100kPa higher than the test pressure with an additional
regulator inline before LS-R700.
Test Pressure Connection
Port: TEST PRESSURE (“IN” on Oil mist separator) Port Diameter: Rc 1/4
Pressure Range Pressure Source
Micro Low (L02) Up to 20kPa
Connect a pressure source as the follows:
• Sufficiently higher than the test pressure
and stable
• Has enough flow capacity
• Should be regulated to at least 100kPa
higher than the test pressure
L02: Up to 200 kPa
Low (L) Up to 100kPa L: Up to 500 kPa
Low (LR) Up to 95kPa LR: Up to 200 kPa
Medium (M/MR) Up to 800kPa
M: Up to 1 MPa
MR: Up to 1 MPa
High (H20) Up to 2.0MPa Connect a pressure source regulated to the air filter.
Vacuum (V) Down to -100kPa
Connect a vacuum pump
Vacuum (VR) Down to -75kPa
Pilot Pressure Connection
Pilot pressure is to activate air operate valves, which should be regulated between 400 and 700 kPa.
Port: PILOT PRESSURE Port Diameter: 6mm quick disconnect fitting
Once the Differential Pressure Sensor (DPS) is contaminated,
the offset becomes off causing frequent Fails.
Contact Cosmo for repair in those cases.
NOTE
Be sure that water or oil won’t enter
LS-R700 from vacuum pump.
NOTE

Cosmo LS-R700 Specifications

General

Brand	Cosmo
Model	LS-R700
Category	Test Equipment
Language	English