Combutech

The Combutech COMBUP50 pressure switch operates within a range of 5 to 50 mbar, with an allowable deviation of ±15%. It features IP54 protection and a 1/4" female thread process connection, making it suitable for monitoring low-pressure gas or air in burner systems. The electrical connection is a 3-pin DIN-EN 175301-803 connector, which is standard for industrial control panels. This switch is typically used to verify that the combustion air or gas supply is within safe limits before ignition.

The Combutech UV1 detection cell is designed for continuous flame monitoring in combustion processes. It has a lifespan of over 10,000 hours at 50°C and 1 mA discharge current, ensuring long-term reliability. The cell features IP65 protection, making it resistant to dust and water ingress, and can withstand vibrations up to 0.5 G. Its recovery time is 20 seconds at a 10% duty cycle, which allows for rapid response to flame loss. The connection is a DIN43650 3-pole connector, and the gas connection is 3/4" GAS, facilitating easy installation.

The Combutech CF1 flame relay is a control module that manages flame detection signals from up to 10 UV detectors. It has a rated load of 1 A at 250 VAC and 1 A at 30 VDC, with a minimum current of 10 mA at 5 V. The relay is housed in a polycarbonate enclosure with UL94-V0 flammability rating and IP40 protection, suitable for indoor control cabinets. It operates with a current limit of 2 mA and a nominal current of 3 A maximum, ensuring safe operation with multiple detectors connected in parallel.

Yes, the Combutech COMBU1s control unit allows for adjustable purge timing from 1 to 250 seconds, enabling plant engineers to configure the pre-purge duration according to specific burner requirements. It operates at 230 V ±15% with a frequency of 50/60 Hz, and includes a startup safety delay that can be set between 2 and 10 seconds. The unit also features a pre-ignition delay of 500 ms and a maximum output load of 3 A at 230 V with a power factor of 0.4. This flexibility supports various combustion processes without the need for external PLC logic.

The Combutech UV1 and UV1p detection cells are both designed for flame detection, but they differ in their spectral response and physical dimensions. The UV1p has a spectral response of 185–260 nm, while the UV1 is a standard UV cell. The UV1p is housed in a Ø 35 × 80 mm body with IP65 protection, and its recovery time is 20 microseconds at a 10% duty cycle, which is faster than the UV1's 20 seconds. The UV1p operates at 230 VAC ±15% and uses a 3-pole DIN43650A/ISO4400 connection, whereas the UV1 uses a DIN43650 3-pole connector. These differences make the UV1p suitable for applications requiring faster response times.

Yes, Combutech offers a range of pressure switches to cover various monitoring needs. For example, the COMBUP3 operates in the 1–3 mbar range, the COMBUP50 covers 5–50 mbar, and the COMBUP150 spans 5–150 mbar. All models feature an allowable deviation of ±15%, IP54 protection, and a 1/4" female thread connection. The COMBUP150 has a factory setting of 5.0 mbar and can withstand a maximum allowable pressure of 600 mbar. This variety allows engineers to select the appropriate switch for specific low-pressure or process-critical applications.