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VSA 24-DM / DH / DP

VSA 24-DM / DH / DP
2Pages

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Differential Pressure Sensor The differential pressure sensor VSA 24-D... is a microprocessor controlled pressure switch with two alarm outputs for pre-alarm and shut-off. Depending on the pressure loss in the filter head, the inner piston moves towards a spring. The position of the piston is registered by a pressure sensor placed in the upper part of the sensor. The measured values are converted to optical and electrical signals. As soon as power is turned on, four green LEDs, installed under a transparent cover, start flashing and indicate that the system is active. A temperature sensor measures the temperature of the fluid continuously. After the oil has reached its operational temperature, the device swaps to operation mode, and the green LEDs light up continuously. While the filter capacity decreases during operation, the differential pressure rises slowly. If the dirt holding capacity of the filter is reduced to approx. 25%, the yellow LED lights up. If 100% of the capacity is reached, the red LED appears additionally. Simultaneously, the electrical alarm outputs are activated, signaling the state to Since there is no flow across the filter if the system is running idle, no pressure loss can be measured. Nevertheless, the LEDs and the alarm outputs are self-locking and stay active unless the power supply is interrupted or the reset button is Furthermore, the device has a self-checking function. In case of malfunction, the red LEDs start blinking and signal output 2 is activated without switching on the yellow LEDs. ■ Signal suppression during cold start operating and short-term pressure ■ Optical / electrical indication ■ 360° highly visible LED corona ■ Indication of status and fault Buhler Technologies GmbH Internet: www.buehler-technologies.com e-mail: fluidcontrol@buehler-technologies.com

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Technical Data Mechanical Data: Operating temperature for filter case type screw-in casing Electrical Data: Operating voltage Current consumption Protection class Signal outputs IP67 (with connector installed) optical (LED's) / electrical The capacity provides a display of LED's of different colours. The LED's visualise the operating states and faults. After filter replacement press Reset button Order Information 13 20 099 Differential pressure sensor VSA 24-DM-2,0/2,8 13 20 199 Differential pressure sensor VSA 24-DH-2,0/2,8 13 20 499 Differential pressure sensor VSA 24-DP-2,0/2,8 13 20 299...

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VSA 24-DM / DH / DP 2Pages

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VSA 24-DM / DH / DP
2Pages