Baumer – PT55H

Temperature Sensor With Display_IO-Link_Hygienic

Brand : Baumer

The Baumer PT55H is a hygienic compact temperature sensor designed for high-precision process measurement in food, beverage, pharmaceutical and other sanitary applications. This advanced sensor combines a robust one-piece stainless steel housing with an integrated Pt100 RTD element and transmitter, delivering reliable temperature measurement across a wide operating range. Its ultra-compact design with programmable damping and integrated touch display makes setup and monitoring intuitive and efficient, while its welded construction ensures long-term durability in demanding environments.

The PT55H sensor meets stringent hygiene standards including 3-A and EHEDG, and is suitable for applications with aggressive wash-downs and high humidity thanks to its IP67 and optional IP69K protection ratings. It supports IO-Link communication and flexible configuration via the display or external tools, enabling seamless integration with modern automation systems. Combined with a wide temperature measurement span and fast response characteristics, the PT55H is ideal for critical process temperature control in sanitary production lines.

For more info, download our full technical spec.

Specifications

Specification Details
Product Name Baumer PT55H Hygienic Temperature Sensor
Sensor Type Compact RTD temperature sensor with integrated transmitter
Sensor Element Pt100 per EN 60751
Output Signal 4 … 20 mA; IO-Link 1.1
Accuracy Classes 1/1 B; 1/1 A; 1/3 B; 1/6 B
Max Measuring Error ± 0.06 % FSR @ 25 °C
Temperature Coefficient < 0.025 K/K
Damping (Programmable) 0 … 60 s
Thermal Response Time (RTD + Tx) < 2.5 s (Ø 4 mm); < 6.5 s (Ø 6 mm); < 10.5 s (Ø 8 mm)
Protection Class IP67; IP69K with appropriate connector
Humidity ≤ 100 % RH, condensing
Vibration Resistance 1.6 mm p-p (2 … 25 Hz), 4 g (25 … 100 Hz)
Surface Roughness (Wetted) Ra ≤ 0.8 µm; optional electropolished or Ra ≤ 0.4 µm
Operating Temp Range (Ambient) -30 … 70 °C
Storage Temp Range -40 … 85 °C
Hygiene Standards 3-A (74-07); EHEDG EL Class I
Electrical Connection M12-A, 4-pin
Power Supply 15 … 35 V DC
Sensor Diameters Ø 4 mm; Ø 6 mm; Ø 8 mm
Process Temp Range -50 … 125 °C without cooling neck; up to 250 °C with cooling neck (per configuration)

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