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Multi-channel temperature and humidity display instrument
The multi-channel temperature and humidity display instrument is independently developed, designed and produced by Nanyang Huaye Explosion-proof Instrument.
Classification:
Detailed introduction
The multi-channel temperature and humidity display instrument is a temperature and humidity display instrument independently developed, designed and produced by Nanyang Huaye Explosion-proof Instrument. The instrument can be used in cold storage rooms, laboratories, homes, industrial sites, offices and other places. The large-screen digital display can display multiple temperature and humidity values; it also has good scalability and reserves multiple interfaces to facilitate remote call of temperature and humidity data.
Nanyang Huaye Explosion-proof Instrument is committed to the research and development, design and manufacturing of temperature measuring instruments and motor temperature measuring supporting products. It strives for excellence, dares to innovate, dares to research and develop, keeps pace with the times, changes according to market demand, and strives to create high-quality and high-quality temperature measuring instruments.
Advantages: 1. It is developed and designed using a high-performance STM32 single-chip microcomputer system. It has rich expansion interfaces and development examples, and can be used in a variety of practical applications of the Internet of Things.
2. It uses imported high-precision and high-stability temperature and humidity sensors, which are calibration-free, maintenance-free, and easy to produce and control.
3. It has a built-in backup RTC real-time clock and backup RTC battery, and a built-in FLASH storage space to store the measured temperature and humidity data for uploading, analysis and reading.
4. Software watchdog design to prevent equipment crash and ensure stable operation of the instrument.
5. Multi-channel temperature and humidity measurement, one channel is built-in, and the others are connected via a 4-core cable.
Parameters:
· Temperature range: -40℃~125℃
· Temperature measurement accuracy: ±0.2℃
· Humidity range: 10%~90% RH
· Humidity accuracy: ±2% RH
· Power supply (external): 9~24VDC
· Power consumption of the whole machine: <5W
· Power supply (built-in): 1 or 2 18650 batteries, replaceable.
· Charging current: 800mA constant current and constant voltage, fully charged in about 2.5 hours.
· Control output: 2 channels normally open, power: <500W
· Data storage: 2M FLASH, 2-channel data is stored once a minute, and about 60 days of measurement data can be stored.
Function:
·Multi-channel temperature and humidity fixed-point or polling display, switched by A/M key.
·RTC clock date display, can continue to run when power is off.
·Temperature upper and lower limit alarm, humidity upper and lower limit alarm can be set freely.
·MODBUS communication address can be set freely.
·Built-in 1 18650 battery, can provide about 40 hours of battery life without external power supply. 2 batteries can provide 80 hours of battery life.
·The control output of two normally open contacts can be triggered by the upper or lower limit alarm of temperature and humidity, according to customer requirements.
·Built-in power management chip, can power the battery and system with external power supply, and automatically switch to battery power supply when external power is lost.
·Built-in buzzer, can provide alarm sound and key tone, etc.
·RS485 communication interface, providing MODBUS communication protocol, to transmit temperature and humidity data remotely.
Expandable:
· The installation position of the expansion board with 3 USART interface RESET pins and SIM interface is reserved, which can be used for wireless network expansion such as NB-Iot, 4G, 433MHz, Bluetooth, WiFi, etc.
· Multiple temperature and humidity sensor expansion IO interfaces are reserved.
· The data storage FLASH can be expanded to a maximum of 16M byte.
Key words:
Multi-channel
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Nanyang Huaye Explosion Protected Instrument Co., Ltd.
Professional manufacturer of explosion-proof temperature meters and temperature sensors and suppliers of motor supporting instruments
Professional manufacturer of explosion-proof temperature instruments and temperature sensors, as well...
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E-mail:abc@huayex.com
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