CAFM-X4-H - Industrial Automation Festo - Free user manual and instructions
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| Product type | Compact compressed air flow meter |
| Manufacturer | Festo |
| Model | CAFM-X4-H |
| Measurement range | 50 to 5000 l/min |
| Operating pressure | 1 to 16 bar |
| Supply voltage | 18 to 30 V DC |
| Output signal | 4...20 mA analog and digital pulse |
| Display | Integrated LCD with flow and total consumption |
| Connection size | 1/2 inch fluid connection |
| Protection class | IP65 |
| Dimensions | 140 x 80 x 45 mm (approx.) |
| Weight | 0.55 kg |
| Ambient temperature | 0 to 60 °C |
| Maintenance | Annually check sensor cleanliness; clean with oil-free air |
| Safety features | Reverse polarity protection and overcurrent protection |
| Spare parts available | Seal kits, cable connectors, and mounting brackets |
| Repairability | Modular design; internal components replaceable by qualified personnel |
| General information | Suitable for monitoring pneumatic systems in industrial automation |
Frequently Asked Questions - CAFM-X4-H Festo
How do I install the CAFM-X4-H flow meter?
Install the flow meter in a straight section of pipe, ideally with at least 10 pipe diameters upstream and 5 downstream. Ensure the flow direction matches the arrow on the housing and secure the device with appropriate brackets.
What is the power supply requirement?
The device requires a DC power supply of 18 to 30 V. Connect the positive wire to pin 1 and the negative to pin 2 of the M12 connector. Always use a regulated power source to avoid damage.
How do I set the zero point?
To set the zero point, close the shut-off valve completely, wait for the flow to stabilize, then press and hold the 'ZERO' button for 5 seconds. The display will show zero and the output signal will be 4 mA.
Can I measure both flow and consumption?
Yes, the CAFM-X4-H simultaneously measures instantaneous flow rate and totalized consumption. Use the MODE button to toggle between the two values on the LCD display.
What output signals are available?
The flow meter provides a 4...20 mA analog output proportional to flow and a digital pulse output for totalization. The pulse frequency can be configured via the programming menu.
How should I clean the device?
For external cleaning, use a soft dry cloth. For internal cleaning, remove the sensor capsule and rinse it with isopropyl alcohol. Do not use abrasive materials or high-pressure water. Reinstall the capsule carefully and recalibrate if necessary.
What is the maximum operating pressure?
The maximum permissible operating pressure is 16 bar for continuous use. Exceeding this limit can cause permanent damage to the internal sensor and seals.
How do I diagnose a blank display?
First, check the power supply voltage at the M12 connector. If the voltage is correct, inspect the connection for loose contacts. Replace the fuse if present. If the issue persists, contact Festo service for internal repair.
Can I connect the device to a PLC?
Yes, the device is designed for easy integration with PLC systems. Connect the analog output to an analog input module and the pulse output to a digital counter or high-speed counter input.
How often does the sensor need recalibration?
Festo recommends recalibration every 12 months or after any maintenance that involves removing the sensor element. Calibration should be performed by an accredited service center using certified flow standards.
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USER MANUAL CAFM-X4-H Festo
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Product information
Brand : Festo
Model : CAFM-X4-H
Category : Industrial Automation