COMET Pt1000TR050M/0 Exhaust Gas Probe up to 450 °C

COMET SN270 Pt1000TR050M/0 Exhaust Gas Probe up to 450 °C

The COMET SN270 (Pt1000TR050M/0) is a high‑temperature exhaust and flue gas probe specially designed for extreme heat conditions in fireplaces, wood‑burning stoves, pellet heaters, wood gasification boilers, industrial burners, and all types of combustion systems. It continuously measures up to +400 °C and can withstand short‑term exposure up to +450 °C – precisely in environments where standard probes fail.

The 6 mm stainless steel rod (DIN 1.4301) with spacer ring (Ø 8 mm) ensures the correct installation depth in the exhaust line. The high‑quality shielded Teflon cable remains fully functional up to +260 °C and provides reliable measurement over many years, even in hot, sooty, and corrosive conditions.

The Pt1000 Class A element delivers highly precise values, ideal for control, monitoring, and optimization of combustion processes. The probe is supplied without a connector and can be directly connected to COMET transmitters with Pt1000 input (e.g., T4411, P8510, H3531) or any PLC.

With IP64 protection, rugged construction, and a 30‑month warranty, the SN270 sets the standard in modern combustion technology.

Why the COMET SN270 is the #1 choice for flue gas temperature:

• Continuous operation up to +400 °C, short‑term up to +450 °C – withstands extreme conditions
• Special flue gas design with spacer ring for correct installation
• Pt1000 Class A – highest accuracy even at high temperatures
• Fast response t0.5 < 5 s in flowing medium
• Shielded Teflon cable up to +260 °C – soot and heat resistant
• Stainless steel DIN 1.4301 – corrosion resistant in aggressive flue gases
• IP64 protection – resistant to dust and splash water
• 90 or 130 mm immersion length – fits all pipe sizes
• Without connector – ready for direct wiring
• 30‑month warranty

Technical data:

• Model: Pt1000TR050M/0 (SN270)
• Measuring range: –50 to +400 °C continuous, short‑term up to +450 °C (active sensor range)
• Cable and clamp area: max +260 °C continuous
• Accuracy:
  ±(0.15 + 0.002 × |t|) °C from –50 to +250 °C
  ±(0.3 + 0.005 × |t|) °C above +250 °C
• Sensor element: Pt1000 / 3850 ppm / °C, Class A
• Connection: 2‑wire, without connector
• Response time: t0.5 < 5 s (in flowing water > 0.2 m/s)
• Housing material: Stainless steel DIN 1.4301
• Dimensions: Length 90 or 130 mm, diameter 6 ± 0.1 mm; spacer ring Ø 8 mm
• Cable: According to selection, shielded Teflon 2 × 0.22 mm²
• Protection class: IP64
• Warranty: 30 months

Perfectly suited for:

• Fireplaces, tiled stoves, chimneys
• Pellet and wood gasification boilers, chip heating systems
• Oil and gas burners
• Industrial furnaces and drying systems
• Flue gas monitoring and lambda control
• Chimney and flue gas temperature measurement
• Combustion optimization and emission control

Installation:

Insert the probe into a pre‑drilled hole (Ø 8 mm) in the flue pipe and secure it with the supplied clamp or nut. The spacer ring ensures precise positioning and optimal measurement.

Available versions:

• Cable length 1 meter
• Cable length 2 meters
• Cable length 5 meters
• Cable length 10 meters

Summary:

• Temperature sensors designed for measuring flue and exhaust gas temperature in fireplaces, stoves, and boilers
• The Pt1000TR050M sensors are suitable for temperature measurement of gaseous and liquid media
• Operating temperature range: –50 °C to +400 °C
• Maximum temperature up to 450 °C (short‑term, within active sensor area defined by spacer ring)
• Teflon‑insulated cable must not exceed +260 °C
• Protection class IP64 according to EN 60529
• Suitable for non‑aggressive chemical environments
• Installation location must account for temperature and chemical resistance of housing and cable

Scope of delivery:

• Sensor with selected cable length (as above)
• User manual including warranty certificate