Features
- Full switching of temperature signal
- Using photoelectric isolation technology
- RS485 communication interface
- Relay alarm output
- Low power consumption and low heat generation
- Support transmission output
- Smart appearance and high cost performance
- Transmission accuracy: 0.2%FS (20°C)
- I/O/power isolated from each other
Applications
- Detection, conversion and transmission of temperature in industrial automation control
- In the field of environmental monitoring, the measurement and transmission of atmospheric temperature, water temperature, ground temperature and other parameters are realized
- Used in weather stations, hydrological stations, geological exploration and other fields
- In the field of medical equipment, it realizes the monitoring and transmission of patient body temperature.
- Applied to the cold chain logistics industry to monitor and record the ambient temperature of logistics vehicles and cold storage
Specification
| Input | |
| Input signal | Resistance temperature detector (RTD), thermocouple (TC) |
| Cold-junction compensation | -20 -60℃ |
| temperature scope | |
| Compensation precision | ±1 ℃ |
| Output | |
| Output signal | 4-20mA, overlaid HART protocol |
| Load resistance | RL≤(Ue-12)/0.021 |
| Output current of upper and lower
limit overflow alarm |
IH=21mA, IL=3.8mA |
| Power supply | |
| Supply voltage | DC12-40V |
| Other parameters | |
| Temperature drift | 0.0075%FS/℃ |
| Response time | Reach to 90% of the final value for700ms |
| Used environmental temperature | -40 – 80℃ |
| Storage temperature | -40 – 100℃ |
| Insulation strength (between input
and output) |
1500Vrms (1 min, without spark) |
| Insulation resistance (between
input and output) |
≥100MΩ(under the 500 VDC) |
| Aseismicity | 4g/2 – 150Hz |
| Installation angle | Unlimited |
| Installation area | B-type top cassette installation |
| Electromagnetic compatibility | Conform to GB/T18268 industrial equipment application
requirements (IEC 61326-1) |
