NRLM Type Comparison Blackbody Furnaces IR-R24, IR-R26
High Temperature Comparison Blackbody Furnaces IR-R27

Data_Sheet
NRLM type comparison blackbody furnaces, which have been jointly developed with the National Research Laboratory of Metrology, are large opening blackbody furnaces for calibration of radiation thermometers, and a high temperature comparison blackbody furnace uses a standard radiation thermometer for comparison calibration.NRLM Type Comparison Blackbody Furnace

Features(IR-R24, IR-R26)

  • The cavity is profiled as a double cone and the high emissivity is realized with a large opening.
  • For low temperature, a platinum resistance thermometer (sold separately) is used as a standard thermometer.
  • For medium temperature, a 0.9µm standard radiation thermometer (sold separately) is used for comparison calibration.
  • Long-term stability

Models

Models

Types

IR-R24 NRLM type comparison blackbody furnace For low temperature
IR-R26 For medium temperature
IR-R27 High temperature comparison blackbody furnace

Specifications

Model

NRLM type comparison blackbody furnace

High temperature comparison blackbody furnace

For low temperature
IR-R24
For medium temperature
IR-R26

IR-R27

Temperature range

50 to 450°C

200 to 1050°C

800 to 1450°C

Maximum temperature

500°C

1100°C

1500°C

Maximum temperature rising time

About 2 hours

About 4hours

About 2 hours

Cavity opening diameter

60mm

50mm

30mm

Cavity emissivity

0.993

0.997

0.99

Cavity section shape

Double cone type

Cylindrical cone type

Temperature stability

± 0.15K/30 minutes

± 0.25K/30 minutes

± 0.5K/30 minutes

Power supply

100VAC, Single phase

200VAC, Single phase

Power consumption

Maximum 500VA

Maximum 1200VA

Maximum 2500VA

Weight

About 30kg

About 32kg

About 36kg

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