The WIKA CPP140-M is a hand-operated pneumatic comparison test pump designed for generating precise pressure or vacuum to test, adjust, and calibrate mechanical and electronic pressure measuring instruments. It operates on the comparison principle: connecting both a reference instrument and the device under test applies identical pressure to both, enabling direct accuracy verification and adjustment

The pump generates pneumatic pressures up to 140 bar (2000 psi) or vacuum down to -0.95 bar (-14 psi) without requiring an external pressure source A fine adjustment valve enables precise pressure setting, while a built-in shut-off valve ensures leak-free operation during testing

Two quick-release test connections feature freely rotating knurled nuts with M28 x 1.5 female threads, allowing easy alignment of mounted instruments The scope of delivery includes adapters for G1/2, G1/4, 1/2 NPT, and 1/4 NPT female threads, ensuring compatibility with a wide range of devices

Durable and portable, the CPP140-M is suitable for laboratory, workshop, or on-site calibration applications

Features

• Pressure range: -0.95 to 140 bar (-14 to 2000 psi)
• Resolution: 1 mbar for precise adjustment
• Interchangeable pressure and vacuum generation
• Fine adjustment valve for exact pressure setting
• Shut-off valve ensures leak-free testing
• Two quick-release connections with rotating knurled nuts for easy instrument alignment
• Includes adapters: G1/2, G1/4, 1/2 NPT, 1/4 NPT female
• Suitable for laboratory, workshop, or on-site calibration
• Operating temperature: 18 to 28°C (64 to 82°F)
• Ambient temperature range: -10 to 50°C (14 to 122°F)