JT2011/JT2013 WBGT Index Tester Introduction: WBGT is composed of three parts of black ball, natural wet ball and dry ball. It takes into account four factors: air temperature, wind speed, air humidity and radiant heat. JT2011 and JT2013 are high-precision thermal index test instruments independently developed by us, which can simultaneously test air temperature, self-wetting ball temperature and radiation temperature. The tester selects the current digital temperature sensor as the temperature acquisition end, and configures the standard 50mm and 150mm radiation black balls independently developed by our company, which fully complies with ISO and national standards, and can be verified by the National Metrology Institute. JT2011 uses a conventional water-filled wet bulb temperature sensor to directly measure the wet bulb temperature. JT2013 uses a water-free wet bulb temperature to ensure long-term online measurement without worrying about insufficient wet bulb temperature. Both models have built-in relatives. The humidity sensor can display the relative humidity of the air in real time, and can be equipped with 50mm or 150mm black ball spheres to ensure the testing requirements of different usage scenarios. The 485 communication interface can be more easily connected to your industrial control equipment or control device. The download and export of measurement data is realized through the interface. According to the standard GB/T 4200-2008 High Temperature Operation Classification "GB/T 17244-1998 Thermal Environment Evaluation of Operators' Thermal Load According to WBGT Index" 《GB/T 18977-2003 Thermal Environment Ergonomics Using Subjective Judging Scale to Evaluate the Influence of Thermal Environment》 GB/Z 2.2-2007 Occupational Exposure Limits for Harmful Factors in the Workplace Part II Physical Factors 《GBZ/T 189.7-2007 Workplace Physical Factors Measurement Part 7 High Temperature》 Features: Sensor set and body split design for easy replacement of sensor sets Built-in relative humidity sensor measures air relative humidity in real time LCD with backlight for easy reading Sturdy integrated body with certain dust, water and fall protection 3 scalable sensor channels for fast gradient measurement Replaceable 50mm and 150mm black ball spheres for a variety of occasions Chinese/English dual language menu options The user can calibrate the sensor by himself using the configured calibration device Optional water-added (JT2011) and water-free (JT2013) specifications Technical Parameters: Project: JT2011/JT2013 Dry bulb temperature sensor: Measuring range: 0~120°C Accuracy: 0.5°C (0.2°C@10°C~40°C) Resolution: 0.1°C (PT1000) Black ball temperature sensor: Measuring range: 0~120°C Accuracy: 0.5°C (0.2°C@10°C~40°C) Resolution: 0.1°C (PT1000) Wet bulb temperature sensor: Range: 0~120°C Accuracy: 0.5°C Resolution: 0.1°C (only for JT2011) Relative humidity sensor: 0~100%RH Accuracy: ±3% reading Instrument storage: SD memory card Display: 2.8-inch LCD Storage interval: 1~60 minutes adjustable Executive Standard: GB Z T189.7-2007, GBT 934-2008 ISO 7243-2017 ACGIH EPRI OSHA Black ball diameter (mm): diameter 50mm or 150mm optional Power / Battery: 4 AA alkaline batteries or rechargeable battery / DC9V Appearance size (mm): 210x65x270mm Weight (g): about 1500g (host) Sensor extension (gradient): Scalable three-gradient measurement (simultaneous measurement of three groups of WBGT sensor groups) Sensor extension: standard configuration 5m Communication: RS485 Language options: Chinese/English Unit selection: °C/°F
Introduction: WBGT is composed of three parts of black ball, natural wet ball and dry ball. It takes into account four factors: air temperature, wind speed, air humidity and radiant heat. JT2011 and JT2013 are high-precision thermal index test instruments independently developed by us, which can simultaneously test air temperature, self-wetting ball temperature and radiation temperature. The tester selects the current digital temperature sensor as the temperature acquisition end, and configures the standard 50mm and 150mm radiation black balls independently developed by our company, which fully complies with ISO and national standards, and can be verified by the National Metrology Institute. JT2011 uses a conventional water-filled wet bulb temperature sensor to directly measure the wet bulb temperature. JT2013 uses a water-free wet bulb temperature to ensure long-term online measurement without worrying about insufficient wet bulb temperature. Both models have built-in relatives. The humidity sensor can display the relative humidity of the air in real time, and can be equipped with 50mm or 150mm black ball spheres to ensure the testing requirements of different usage scenarios. The 485 communication interface can be more easily connected to your industrial control equipment or control device. The download and export of measurement data is realized through the interface. According to the standard GB/T 4200-2008 High Temperature Operation Classification "GB/T 17244-1998 Thermal Environment Evaluation of Operators' Thermal Load According to WBGT Index" 《GB/T 18977-2003 Thermal Environment Ergonomics Using Subjective Judging Scale to Evaluate the Influence of Thermal Environment》 GB/Z 2.2-2007 Occupational Exposure Limits for Harmful Factors in the Workplace Part II Physical Factors 《GBZ/T 189.7-2007 Workplace Physical Factors Measurement Part 7 High Temperature》
