Belimo 01HT-1C - surface temperature sensor Ni1000

Belimo 01HT-1C – temperature sensor for pipes

Passive surface-mounted sensor for measuring temperature on the surface of water pipes. The spring-loaded brass contact pin ensures a fast response time and an accurate reading.

Key features

• Passive temperature sensor output signal: Ni1000.
• Measuring range: -35...90°C [-30...195°F].
• Measuring current for Ni1000: <0.3 mA @ 0°C [32°F].
• Accuracy for Ni.. sensors: ±0.4°C @ 0°C [±0.7°F @ 32°F].
• Time constant τ (63%) on a water pipe, with heat-transfer paste: typically 16 s.
• Electrical connection: detachable terminal strip with spring terminals, max. 2.5 mm²; cable gland with strain relief, ø6...8 mm.
• Protection rating: IP54 and NEMA 1.
• Ambient temperature: -35...50°C [-30...120°F].
• Supplied with A-22P-A47 mounting strap for pipes ø20...110 mm [0.8...4.3"].

When measuring temperature on a pipe surface, the influence of ambient air temperature can be reduced by using heat-transfer paste. It is listed in the documentation as an optional accessory (A-22P-A44).