Baumer – PT20H

Temperature Sensor Compact_IO-Link_Hygienic

Brand : Baumer

The Baumer PT20H is a compact hygienic RTD temperature sensor designed for precise process temperature measurement in food, beverage, pharmaceutical, and industrial applications requiring sanitary construction and high accuracy. It combines a platinum RTD sensing element with an integrated transmitter offering analog and digital outputs, with IO‑Link support for easy commissioning and enhanced diagnostic capability. The sensor supports customer‑specific immersion depths up to 3000 mm and is suitable for continuous process monitoring and control systems.

Constructed with AISI 316L stainless steel and certified to key hygienic standards such as 3‑A and EHEDG, the PT20H delivers reliable performance with stable output and drift characteristics across varying operating conditions. Its rugged design includes high ingress protection and robust vibration tolerance, making it appropriate for demanding environments where precise temperature data is essential for process regulation, quality control, and safety.

For more info, download our full technical spec.

Specifications

Specification Baumer PT20H
Product Type Hygienic compact RTD temperature sensor with transmitter
Measuring Principle Platinum RTD (Pt100) with integrated transmitter
Accuracy Class (EN 60751) 1/1 B, 1/1 A, 1/3 B, 1/6 B options
Maximum Output Error ≤ 0.06 % FSR @ 25 °C (incl. input, output, repeatability)
Temperature Drift (Ambient) < 0.025 K/K + 0.01 % FSR/K
Thermal Response Time (T90) < 3.0 s (Ø3 mm), < 8.5–8.9 s (Ø6 mm)
Output Signals PNP, NPN, digital push‑pull, 4…20 mA (2‑wire), 20…4 mA (2‑wire)
Switching Logic Active high / Active low
Supply Voltage 4…20 mA loop powered / typical process transmitter range
Current Rating ≤ 100 mA max
Protection (EN 60529) IP65 (DIN), IP68 & IP69K with appropriate cable
Sensor Tube Material AISI 316L stainless steel
Surface Roughness (Wetted) Ra ≤ 0.8 µm
Hygiene Standards 3‑A (74‑07), EHEDG EL Class I
Safety Approvals cULus listed (E527512)
Operating Conditions Humidity ≤ 100 % RH (condensing), vibration tolerance per EN 60068‑2‑6
Sensor Length Up to 3000 mm customizable
Immersion Depth Customer‑specific up to 3000 mm

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