Belimo 01HT-1B - surface temperature sensor Pt1000

Belimo 01HT-1B – surface temperature sensor

Passive sensor for measuring temperature on the surface of water pipes. The spring-loaded brass contact pin ensures contact with the surface being measured.

Key features

• Output signal of passive temperature sensor: Pt1000.
• Measuring range: -35...90°C [-30...195°F].
• Accuracy for Pt..: Class B, ±0.3°C @ 0°C [±0.5°F @ 32°F].
• Measuring current for Pt1000: <0.3 mA @ 0°C [32°F].
• Time constant τ (63%) on a water pipe, using contact fluid: typically 16 s.
• Electrical connection: pluggable terminal block with spring terminals, max. 2.5 mm²; cable gland with strain relief for cable ø6...8 mm.
• Degree of protection: IP54 (IEC/EN) and NEMA 1 (NEMA/UL).
• Ambient temperature: -35...50°C [-30...120°F]; medium temperature: -35...90°C [-30...195°F].
• Includes A-22P-A47 mounting strap for pipes ø20...110 mm [0.8...4.3"].

When measuring temperature on a pipe surface, the effect of ambient temperature can be reduced by using contact fluid. Contact fluid A-22P-A44 is an optional accessory.