To connect your pressure switch to the electric circuit, identify your pressure switch model and download the corresponding datasheet from our website.

Setting up your pressure switch is simple with our dedicated guides. For pressure switches with adjustable hysteresis, refer to our specific guide. For other pressure switch models, we have a comprehensive guide to help you step by step. Remember, a pressure gauge or a pressure transducer is necessary for fine-tuning.

Installing the brass bushing is essential for securing the screw that holds the protective cap in place.

Installing the flow switch in a horizontal position can affect its performance. In this position, the force generated by the weight of the shutter is eliminated, leaving the task only to the compensation spring. This means the flow switch may activate at flow rates approximately 20% lower than the actual graduated scale. Additionally, the formation of limescale or other encrustations could hinder the free movement of the shutter.

Follow these simple steps to set up your flow switch:

1. Place the cursor at the maximum flow rate.
2. Set the system’s flow rate to the desired level for the flow switch activation.
3. Slowly move the cursor down until the switch activates.
4. Restart the system’s flow and check the switch action again. Make small adjustments by moving the cursor up or down to fine-tune the setup.

If your component begins to leak after one or two years of normal operation, it could be due to a punctured membrane. Under normal conditions, fluid should not pass through the membrane. Here are several possible reasons for membrane failure:

• End of Mechanical Lifespan: The membrane may have worn out after reaching its mechanical limit of 1,000,000 cycles.
• Excessive High Pressure: Operating under excessively high pressure can damage the membrane.
• Aggressive or Corrosive Fluids: Accelerated wear can occur if the fluid is aggressive or corrosive.
• Metal Particles: Metal particles in the fluid can cause physical damage to the membrane.

This issue is likely due to an incorrectly set hysteresis screw. To correct the commutation, please follow the steps outlined in our guide.

If your electrical flow switch is not commuting, consider the following potential causes and solutions:

• Viscous Fluid: A viscous fluid typically causes early commutation, meaning it occurs at lower flow rates. Try using a larger compensation spring.
• Burnt Sensor: The sensor might have burnt out and become stuck in its last working position, even if no fluid is flowing.
• Low Flow Rate Adjustment: If the switch is adjusted for low flow rates, the shutter may be clogged with dust and dirt. Move the slider to higher flow rates.
• Broken Compensation Spring: A turbulent flow could have broken the compensation spring. Ensure the flow switch operates in a vertical position and that there are no turbulent motions or water hammer effects.

You can obtain 3D models of our products free of charge from this link. Please note that a PARTcommunity account is required to access the models.

Yes, we offer customization options for our products. Whether through laser marking or printed labels, we can add your custom logo to meet your branding needs.

Certainly! We specialize in designing and manufacturing custom products tailored to your unique specifications. Whether you need a small batch or a larger production run, we are equipped to meet your needs.

You can find the most requested certificates and declarations here.

Yes, we can help. Please send an email Click here to contact us by email. and include all the available information such as the product code, order date, certificate type, and order quantity. We will send you a copy of the original certificate as soon as possible.

The 3.1 certificate must be requested before production. A special code will be created to link the production batch to the certificate.

• Body: You will receive the certificate from the manufacturer.
• Membrane, Plastic Parts, Rubber Parts, Protection Cap: You will receive a type 2.1 or 2.2 certificate.

According to the PED 2014/68/EU directive, our products are considered “pressure accessories” and are classified in Category I.

They are designed and manufactured according to good engineering practices and meet the essential safety requirements outlined in Annex I. They undergo conformity assessment following Module A – Internal Production Control, as indicated in Annex III.

Therefore, our products can be considered PED compliant. We are in the process of preparing a declaration of conformity to confirm this.

The overall functionality of the pressure switch is our priority, and extreme temperatures can affect its reliability and accuracy. While the membrane may resist higher or lower temperatures, the entire pressure switch may not perform optimally in these conditions. Therefore, we set temperature thresholds to ensure consistent and reliable performance of the pressure switch as a whole.

The MTTF (Mean Time To Failure) of our products, according to EN ISO 13849-1, depends on their usage, specifically the number of cycles per year.

• MTBF (Mean Time Between Failures) = MTTF (Mean Time To Failure) + MTTR (Mean Time To Repair)

In our case, the MTTR is negligible because the component is typically replaced if it fails. The MTTF calculation can be related to the MTTFd (Mean Time To Dangerous Failure), which indicates the average time before a dangerous failure occurs. For pressure switches, according to EN ISO 13849-1, the formula is:

MTTFd = B10d / (0.1 * nop)

Where:

• nop = number of cycles per year
• B10d = number of cycles until 10% of the components experience a dangerous failure

Example for Pressure Switches:

• If the current is <20mA, B10d = 1.000.000 cycles.
• If the current is >20mA, B10d = 100.000 cycles.

For a current >20mA: MTTFd = 100,000 / (0.1 * nop) = 10^6 / nop

The customer can calculate the MTTF by inserting the expected number of cycles per year for their application.

For example, if the pressure switch operates once per minute: nop = 1 * 60 * 8 * 220 = 105.600 cycles/year MTTFd = 106 / 105.600 = 9,47 years

Example for Level Switches:

For LM1…XIA, considering the low voltages and currents, we estimate 10^5 cycles for safety. MTTFd = 100.000 / (0.1 * nop) = 106 / nop

For example, if the level switch operates once every 10 minutes: nop = 1 * 8 * 6 * 220 = 10.560 cycles/year MTTFd = 106 / 1760 = 94 years