40 Channels 10K NTC Thermistor 4-20mA Analog Input Module RS485 Modbus RTU

S5140 is a high quality and low cost analog data acquisition module with 40 analog inputs.  each input can be 0-5V,0-20mA,thermistor,dry contact,open-collector input,It also accept 0-10V input but need a external resistor. Output is RS485 BUS with surge protection, to reduce interference by serial port communication, the output isolated by high speed opto-couplers. The modules are slave devices that can be easily controlled via the RS485 serial interface using the industry standard Modbus protocol. Highlights: l  Surge-protected analog inputs with 12-bit resolution and 100k sample speed l  Input can be any combination of 0-5V,4-20mA,0-10V,NTC 10K thermistor and dry contact l  Surge-protected and isolated Rs485 ensure reliability l  The channel number is configurable, can be set up from 1 channel through 40 channels, improve sample rate for small count analog input l  Standard ModBus protocol allows for up to 254 unique devices on one RS485 network l  A lot of spare FLASH can be used to store user’s parameters l  Islated RS485, non-isolated RS485, RS232 for optional l  Can update your firmware via ISP through RS485 network  

Application:

ü  Remote data acquisition

ü  Process monitoring

ü  Industrial process control

ü  Energy management

ü  Supervisory control

ü  Security systems

ü  Laboratory automation

ü  Building automation

ü  Product testing

ü  Direct digital control

Technical data:

Resolution-----------------------------------------------------------------------------------------------12-bit Input channel number---------------------------------------------------------------------------------------      40

Input range--------------------------------0-5V,0-10v,0-20mA, thermistor, dry contact,open-collector

Input protection------------------------------------------------------------------------------Lightning,static

Accuracy-------------------------------------------------------------------------------------------------±0.1%

Zero drift-----------------------------------------------------------------------------------------------±3uV/℃       

Sample rate--------------------------18 sample/second(40 channels),900 sample/second(1 channel)        Output BUS-----------------------------------------------------------------RS485(opto-couplers isolated)       

Output Protection-----------------------------------------------------------------------------Lightning,static       

Power input---------------------------------------------------------------------------------9~24V(AC/DC)      

  Power consumption------------------------------------------------------------------------------------<0.6W

Ambient temperature:               Operation-------------------------------------------------------- -20~85℃(-4~185℉)                   Storage------------------------------------------------------------------------ -40~125℃(-40~185F)

Ambient humidity-----------------------------------------------------------------------------------------------10%~90%RH Material,enclosure-----------------------------------------------------------------------Flame proof

plastic Enclosure rating--------------------------------------------------------------------------------------------IP31

Colour----------------------------------------------------------------------------------------------White/Black

Size---------------------------------------------------------------------------------------------115*90*43 mm

Inputs Each input can be jumper-configured in 1 of 4 ways

²  0-5V signal

²  0-10V, need a external 250R resistor

²  0-20mA

²  Dry contact, thermistor, open-collector. thermistor default is 10K NTC, but can custom according to your sensor type