
| Item | Unit | CVA-V | |
|---|---|---|---|
| Applicable Fluid | Air (vacuum), non-corrosive gas | ||
| Set Pressure Range | kPa | -33.3 ~ -73.2 | |
| Proof Pressure | MPa | 0.5 | |
| Ambient Temperature Range | ºC | 0 ~ 60 | |
| Ambient Humidity Range | %RH | 35 ~ 85 (no condensation) | |
| Hysteresis | kPa | 4 ~ 13.3 | |
| Cable Length | mm | 100 | |
| Net Weight | g | 135 | |
Q1: Does it require external power?
A: No. CVA-V is a mechanical vacuum pressure switch that switches purely by mechanism.
Q2: What does it pair with?
A: It is dedicated to CONVUM CVA2 vacuum ejectors. Direct mounting ensures the fastest and most stable integration.
Q3: What are the set range and hysteresis?
A: Set range −33.3 to −73.2 kPa, fixed hysteresis 4 to 13.3 kPa, providing clear ON/OFF transitions.
Q4: Can I use it in other vacuum systems?
A: It may be used in compatible low-vacuum applications, but best repeatability and stability are achieved with CVA2 systems.
Q5: Any constraints on mounting orientation or position?
A: The standard method is direct mounting on the designated CVA2 position. For unusual orientations or offsets, verify fixture clearance and run a small on-site test.
Q6: What is the output contact type (NO/NC)? Can it be changed?
A: It is a mechanical switching output. Refer to the datasheet/markings on the unit for the exact contact specification and wiring method.
Q7: How do I fine-tune the setpoint in the field?
A: Follow the on-body indication or datasheet to adjust the setting screw (if provided). Use a reference vacuum source and approach the target slowly while monitoring the switch point.
Q8: How to ensure repeatability and long-term stability?
A: Include the switch point in periodic inspections, check for leaks and fastener loosening, and verify switching with a known reference vacuum.
Q9: Will oil mist or dust affect operation?
A: Keep within allowable environmental conditions. Use clean vacuum and proper filtration, and maintain the system regularly for stable switching.
Q10: What about body and cable specs? Can I extend the cable?
A: The body is approx. 135 g with a 100 mm lead. If extension is required, use proper-rated extension cables and terminals, and secure routing to avoid strain or signal issues.