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Introduction
| Black bulb temperature (TG) Natural wet bulb temperature (TN) Ambient (dry bulb) temperature (TA) Relative humidity (RH) (not involved in WBGT calculation, display and screen reference values) Based on the above measurements, TesterMeter-JT2020-2 can calculate: WBGT (in) index, i.e. wet bulb black bulb temperature index (in case of no solar radiation) WBGT (out) index, i.e. black bulb wet bulb temperature index (when there is solar radiation) WBGT, also known as the temperature index of wet bulb and black bulb, is a basic parameter to evaluate the heat load of human contact working environment. WBGT shows an index that is related to the metabolism of specific jobs that produce heat intensity. WBGT index is composed of three parts: natural wet ball TNW, black ball TG and dry ball ta (sometimes). The calculation formula is as follows: Without solar radiation indoors and outdoors: WBGT = 0.7tnw + 0.3tg In case of outdoor solar radiation: WBGT=0.7Tnw+0.2Tg+0.1Ta Where TNW = natural wet bulb temperature TG = black bulb temperature TA = dry bulb temperature / air temperature |
Features
TesterMeter-JT2020-2 WBGTindex instrument For occupational health andsafety measurement WBGTmeasurement of thermal environment in high temperature workplace with sensor kit specially used for occupational health measurement
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Technical Specifications
Name | Technical Specifications |
Structural specification | |
Size | 175X92X38mm |
Material | ABS+ wrap |
Protection | IP30 |
Non-slip | With anti falling wrist strap connector, detachable wrist strap |
fixed | 1 / 4 "threaded connection, standard tripod can be connected |
Power supply | |
battery | lithium battery 5000mAh |
Endurance | Not less than 96 hours (all channel access sensors) |
External power | DC5V，1A；Micro USB |
Datalogger specifications | |
Acquisition channel | 1. Digital channel: 3 channels at the top of the instrument, 6-core M12 aviation connector, which can be connected to a series of sensors with digital signal output, such as temperature, humidity, temperature, wind speed, etc. 2. Thermocouple channel: bottom 2 channels, K-type thermocouple. 3. Analog channel: 2 channels at the bottom, which can be connected with heat flow, radiant heat, etc.; acquisition voltage range 0-2v; resolution 0.01 MV; accuracy 0.5%. |
Performance specification | |
Display | Color 3.5-inch touch LCD display |
Operational | Chinese (default) / English (optional) |
Storage interval | 10 seconds -- 90 minutes and 59 seconds, any setting |
Data storage | SD card, mass storage |
Output | Export storage data, export spreadsheet file format.csv |
Software | JTSoft-DM， Win7 or newer |
Other | |
Operating | 0—60°C、0~90%RH |
