LM-410, LM-420 is a new type of temperature or humidity and temperature acquisition module, the scene can be achieved using its temperature and relative humidity value of the collection, at the same time using their own bus RS-485 serial communication interface can be easily and the engine room to monitor the host mainframe or other industrial control networking.

Work in -40 ℃ ~ 85 ℃ industrial grade LCD display with temperature and humidity of the acquisition module, collecting temperature range of -40 ℃ ~ +85 ℃, accuracy of 0.1 ℃; relative humidity range of 0 ~ 100%, accuracy of 0.5%.

LM-410, LM-420 humidity and temperature acquisition module can be isolated from communication interface 485 and RS-485 Local Area Network connection control, RS-485 allows a maximum of 32 temperature and humidity acquisition module linked to the same bus, but if Link-Max using the RS-485 repeaters, may be temperature and humidity up to 256 acquisition module connected to the same network, and the maximum communication distance of 1200m. Temperature and humidity in the network prior to acquisition module installed, they should be configured, and should, in the first module and the baud rate baud rate is set to the same network, set at the same time, temperature and humidity, respectively, for different acquisition module address, to prevent the temperature Humidity conflict address acquisition module.

Acquisition module temperature and humidity will be properly connected, the host read data command can be issued so that temperature and humidity data acquisition module will be sent back to the host. Temperature and humidity data acquisition module is updated once per second, and periodically update the display data LCD display.

LM-410 for room and indoor occasions the need for constant temperature and humidity control; and function of LM-420 is the largest model, with the exception of acquisition to be completed by the temperature, humidity acquisition, but also have the clock showed that the maximum temperature and humidity record and display the minimum greatly facilitates the unmanned engine room after the view of environmental parameters. The LM-420 can also be pre-set temperature and humidity alarm value upper and lower limits, when environmental parameters exceed the set value, the machine immediately sounded alarm buzzer sound, so that field managers to make the first response.

LM-410, LM-420 intelligent temperature and humidity acquisition module is a broad prospect of all-digital acquisition module temperature and humidity, the use of the module will enable the computer room environment has become very easy to monitor, control console can be easily carried out of the room the major blocks (such as rack of blade servers, routers, racks, cabinets network switches, UPS Distribution Cabinet) of the temperature and humidity data acquisition, while streamlining the entire engine room monitoring system, and the reliability of the engine room monitoring system has also been improved. Therefore, the module in the engine room monitoring system, power systems and industrial automation in areas such as access to a wide range of applications, with excellent cost-effective.

Performance parameters:

Input response time (refresh rate data modules) for simultaneous measurement of 1 seconds
1 way isolated from 485, MODBUS RTU communication protocol
Second-line using RS-485 output interface system, with +15 kV of ESD protection
Rate (bps) can choose 1200,2400,4800,9600,19200,38400,57600,115200
Optional dual-protocol communication, the customer may request format with ASCII code in hexadecimal format or communication protocol (only LM-420)
When the instruction code for the ASCII format, suitable for computer programming interface; instructions for hexadecimal format, suitable for single-chip programming interface (only LM-420)
Can set upper and lower limits of temperature and humidity alarm function (only LM-420)
Can set the time: months, days, hours, minutes, seconds, 24-hour or AM / PM (only LM-420)
Can store and display the smallest have the biggest temperature and humidity values, to maintain power (only LM-420)
Accuracy Rating: 0.2 temperature; humidity of 0.5
Power supply: +7.5 ~ 30V
Power consumption less than 0.1W
Operating temperature range is -40 ℃ ~ +85 ℃
Storage conditions -40 ℃ ~ +85 ℃ (RH: 5% ~ 95% non-condensing)
Size of 106mm × 98mm × 22mm
Installation: Wall-mounting hole; built scaffold braces can also be placed Desktop
Order Guide
LM-410 network-based temperature and humidity sensor acquisition module
LM-420 take the minimum with the greatest alarm clock with a record minimum temperature and humidity of the acquisition module