Condition:New
Type:Logic ICs
Industrial grade
1.6 channels
2. Self-correction technology
3.24 bit ADC
4. Modular isolation
5. Support 2 wire/3 wire/4 wire
Product Introduction
This is an industrial-grade thermal resistance temperature collector, which can freely access various types of thermal resistance, such as PT100, PT1000, PT500, PT800, Cu50, Cu100, Ge53, BA, etc., supporting 2-wire, 3-wire and 4-wire Three wiring methods. The collector has a built-in excitation source, dynamic compensation and wire compensation technology to make the measurement more accurate. Communication uses RS485 interface, MODBUS-RTU protocol, supports access to configuration software, PLC system, text screen, etc., which can realize rapid networking.
Specifications:
Thermal resistance input
Number of input channels: 6 channels
Thermal resistance type: PT100, PT1000, PT500, PT800, Cu50, Cu100, Ge53, BA1, BA2 (the input type can be selected by the configuration tool)
Support three wiring modes: two-wire, three-wire and four-wire
Acquisition accuracy: ±(0.1%+01℃)
ADC bits: 24bit
Sampling frequency: ≤15HZ
Communication Interface
Interface type: RS485
Interface input impedance: 1/8 unit load, allowing 256 terminal devices on the bus
Communication protocol: MODBUS-RTU
Power supply
Input voltage: 6V-36V DC
Operating power consumption: 15mA＠12V
Working environment
Working temperature: -40℃~+85℃
Working humidity: 0-95%, non-condensing
Display function
Display specifications: 128×64 OLED liquid crystal display
Display content: The first line displays the key parameters of equipment operation such as serial port parameters and thermal resistance type. The 24th line patrol displays the collection results.
Safeguard
Power interface: overvoltage protection, overcurrent protection and anti-reverse connection protection
Communication interface: short circuit protection, TVS protection and ESD protection
Acquisition interface: TVS protection and ESD 15KV (contact) 20KV (air) protection
Features
Strong anti-interference ability: analog-digital isolation avoids interference from digital circuits; integrated 50HZ notch can filter interference from power systems
No self-heating error: use extremely small excitation current to avoid errors caused by thermal resistance self-heating
Compatible with various thermal resistances: with programmable excitation current and PGA, support users to configure thermal resistance types by themselves
Self-calibration function: with temperature compensation and self-calibration function
Mechanical properties
Installation method: DIN35mm rail installation
Dimensions: 121X37X70mm (length X width X height)
Interface and wiring instructions
VCC: positive power supply
GND: negative power supply
A (+): RS485 positive or RS232-TXD (customized)
B (-): RS485- negative electrode or RS232-RXD (customized)
GND: Communication port GND
INx+: Thermal resistance input positive
INx-: thermal resistance input negative
COM: Thermal resistance input common terminal
