AILEIKE Blackbody Radiation Source: Calibration of Industrial-Grade Infrared Temperature Measurement Equipment – Heating and Cooling Procedures

The AILEIKE ALKHW-W51B blackbody radiation source is a standard piece of equipment for temperature metrology and calibration, designed to calibrate various types of radiation-based temperature measurement instruments, such as infrared thermometers, radiation thermometers and infrared thermal imagers. Its primary function is to provide a standard radiating surface for these instruments, thereby enabling the traceability of measurement values and the verification of their performance.

I. Product Features

1.1 The calibration surface exhibits excellent temperature uniformity.

1.2 Rapid heating and cooling rates.

1.3 The interface can be switched between Chinese and English to suit various scenarios.

1.4 Compact design, small size and light weight, making it suitable for both fixed and portable use.

II. Product Introduction

III. Detailed Operational Procedures

(1) Preliminary Preparations

• Environmental requirements: Temperature must be maintained at (24±2) °C, relative humidity ≤ 85% RH, with no condensation; ensure the site is free from vibration, dust, corrosive gases and flammable or explosive gases.

• Prepare an industrial-grade general-purpose infrared thermometer and calibrate its measurement error within the 0–100 °C range.

• Connect the blackbody radiation source’s power cable to a 220 V power supply; switch on the fan first, then switch on the main power switch.

(2) Blackbody Radiation Source Heating and Cooling Procedure

1. Cooling Process

• First, lower the blackbody radiation source from room temperature to 0°C. Press the ‘Set Temperature’ button, enter the temperature value 0°C, then press the ‘Cooling’ button once and turn the knob to the ‘Cooling’ position; the blackbody radiation source will automatically begin to cool down.

• When the temperature has dropped to 0°C, aim the infrared thermometer at the opening of the radiation source’s measurement chamber; the temperature reading should be 0°C. Next, press the ‘Stop’ button and turn the dial to ‘Stop’. Only once the blackbody radiation source has naturally returned to room temperature may the heating mode be activated.

2. Heating (Temperature Increase) Process

• First, press the ‘Set Temperature’ button and enter the temperature value 20°C. Then, turn the dial to the ‘Heating’ mode and press the ‘Heat’ button; the blackbody radiation source will automatically begin to heat up.

• When the blackbody radiation source display shows a temperature of 20 °C, aim the infrared thermometer at the measurement port of the radiation source; the temperature reading should be 20 °C.

• Repeat the same procedure, setting the temperature to 40 °C, 60 °C, 80 °C and 100 °C; when aiming the infrared thermometer at the measurement port of the radiation source, the readings should be 40 °C, 60 °C, 80 °C and 100 °C respectively.

• Once heating is complete, press the ‘Stop’ button and turn the knob to ‘Stop’ mode; the blackbody radiation source will then begin to cool down naturally.

• When the temperature has returned to room temperature, switch off the power supply and the fan switch to conclude the measurement.

IV. Precautions

Proper Use

• When using the device on-site, ensure the power plug is securely earthed to prevent electrical faults.

• Place the unit on a workbench where it is easy to operate, ensuring it is kept level; it must not be subjected to vibration during use.

• During high-temperature calibration, do not touch the temperature measurement chamber opening directly to avoid skin burns.

Maintenance and Calibration Intervals

• Have the ALKHW-W51B blackbody radiation source metrologically verified at regular intervals to ensure accurate traceability of measurement values.

• Switch off the power supply when the blackbody radiation source is not in use.

• When the blackbody radiation source is not in use for an extended period, cover it with a cloth cover to prevent dust from entering the instrument.

V. Conclusion

The AILEIKE ALKHW-W51B blackbody radiation source is a standard instrument for temperature metrology and calibration. Its core function is to provide a standard temperature-radiating surface for industrial-grade general-purpose infrared thermometers, radiation thermometers and infrared thermal imagers, enabling the calibration, performance testing and traceability of measurement values for these devices. This device features excellent temperature uniformity across the calibration surface, rapid heating and cooling rates, user-friendly operation and a lightweight design. With a standard measurement range of 0–100 °C and support for customisation, it can accommodate calibration requirements across a wide range of scenarios. By adhering to standard operating procedures and carrying out regular metrological verification and routine maintenance, the accuracy of calibration data can be consistently ensured, thereby laying a solid technical foundation for the stable performance and uniformity of measurement values of infrared temperature measurement equipment across various fields.