Absolute pressure transmitter AD 1000

piezoresistive4-20 mA0-10 V

Description
The AD 1000 absolute pressure transmitter is designed to measure absolute pressure and is suitable for use in closed systems. The sensing element is evacuated and manufactured from elastic copper. Deformation of the sensing element under absolute pressure is detected by non-contact inductive measurement and converted into an electrical output signal proportional to the absolute pressure. The pressure connection is through-type, allowing measurement of absolute pressure in closed circuits. The unit can be supplied with an optional calibration certificate (COFRAC certificate, COFRAC equivalent or COFRAC-accredited certificate).

Operation

• Vacuum measuring cell made of elastic copper
• Non-contact inductive measurement
• Electrical output signal proportional to absolute pressure
• Through-type pressure connection for closed systems

Main features

• Measurement ranges: 0 to 50…100 kPa
• Accuracy: ±1% of span
• Electrical outputs: 0..10 V or 0/4..20 mA
• Ingress protection: IP54 (limited dust protection and protection against water splashes)
• Optional display: 3 ½ digits
• Power supply: 24 V AC/DC or 115..230 V AC

Technical specifications

• Model: AD 1000
• Measurement type: absolute pressure
• Measurement principle: evacuated cell + non-contact inductive measurement
• Available ranges: from 0 to 50 kPa up to 100 kPa (depending on version)
• Accuracy: ±1% of span
• Outputs: 0..10 V, 0/4..20 mA (selection or available versions)
• Ingress protection: IP54
• Local display: optional, 3 ½ digits
• Power supply: 24 V AC/DC or 115–230 V AC
• Pressure connection: through-type (compatible with closed systems)
• Option: COFRAC calibration certificate or equivalent