Ashcroft XLdp Differential Pressure Transmitter

Ashcroft XLdp Differential Pressure Transmitter

The Ashcroft XLdp is a variable capacitance sensor within a glass-clad silicon chip. The patented Si-Glas™ technology combines the inherent high sensitivity of a variable capacitance transducer with the repeatability of a micro-machined, ultra-thin silicon diaphragm.

The Ashcroft Si-Glas sensor now enables precise measurement and control of very low pressure. Although the ultra-thin silicon diaphragm deflects only a micron, the sensor is 100 times more sensitive to pressure than available silicon piezoresistive pressure sensors.

The Si-Glas sensor is composed of only sputtered metals and glass molecularly bonded to silicon. There are no epoxies or other organics in the sensor to contribute to drift or mechanical degradation over time. The glass-clad silicon diaphragm withstands extreme overpressure as well as severe shock and vibration.

• Certified 0.25% and 0.5% accuracy
• 0.1"-50"- H₂O pressure ranges
• CE approved
• High overpressure protection
• Flame proof NEMA 2 stainless steel construction
• Three types of output signals available
• Easy installation
• On-board voltage regulation allows use of lower cost, non-precise, unregulated power supply

• HVAC
• Fume Hood Control
• Lab/clean Room Pressurization
• Laminar Flow
• Furnace/Stack Draft
• Leak Detection
• Medical
• Fan Tracking
• Filter Monitoring
• Glovebox
• Velocity Measurements