EN
DE
TR
KELLER PA-23SY/20BAR/81549.55 PRESSURE TRANSMITTER
Industrial process control systems
Water and gas pressure monitoring
Food, chemical, and pharmaceutical production facilities
HVAC systems and energy management
Mobile hydraulic systems
Safe pressure measurement in explosive environments (ATEX compliant)
KELLER PA-23SY series is a high-precision, temperature-compensated piezoresistive pressure transmitter. With a 20 bar measuring range, this model delivers stable performance even under harsh conditions. Its fully welded sensor design ensures excellent sealing. The compact form and multiple output signal options allow easy integration into various systems. Certified with CE and ATEX for safe operation.
Model: PA-23SY / 81549.55
Measuring Range: 0 – 20 bar (gauge or absolute)
Output Signal: 4 – 20 mA, 0 – 10 V, 0.5 – 4.5 V
Supply Voltage: 8 – 32 VDC
Sensor Technology: Piezoresistive, temperature-compensated
Housing Material: Stainless steel (fully welded)
Connection Type: Threaded (G1/4", M12, NPT etc.)
Temperature Range: -40 °C to +100 °C
Accuracy: ±0.25 % FS
Long-Term Stability: ≤ ±0.2 % FS/year
Protection Class: IP65 / IP67 / IP68
Certifications: CE, ATEX Zone 0