下载附件
立即咨询
上一条：
沪公网安备31011802003762
-
-
Tel:13585763546 -
扫码咨询
-
-
TOP
探索韦弗斯产品
SF6应用知识
SF6安全保障专家
专注于SF6气体检测的专业化
Wireless SF6 Gas Density Pressure Transmitter (WFS-S6PTW)
Pressure measurement range: 0... 14 bar (absolute pressure)
Temperature measuring range: -40... +125℃, -40... 0℃ and +50... +125℃ ±0.5℃ (standard)
SF6 or SF6/N2 mixture density: 0... 100 kg/m3
Pressure accuracy: @20℃ ±0.3%FS
Density accuracy: (pure SF6, 0... 14 bar), 0... +40℃ ±1%FS, -40... +60℃ ±2%FS
Digital output: RS485 Modbus RTU
产品详情/ Product details
The wireless SF6 gas density pressure transmitter (WFS-S6PTW) adopts the new digital high-precision sensor technology imported from Switzerland, with internal calibration parameters to ensure high precision, and its recalibration cycle is more than two years. The sensor internal circuit design automatically compensates the drift caused by temperature, pollution and aging. To ensure long-term reliable high-precision measurement, innovative temperature compensation algorithm and multi-point temperature compensation check before delivery, greatly improve the temperature drift of the sensor, to ensure a wide temperature range of high-precision measurement.
Product overview
l Swiss imported new digital high-precision sensor technology, internal calibration parameters, to ensure high precision, its recalibration cycle in more than two years.
l The internal circuit design of the sensor automatically compensates for drift caused by temperature, pollution and aging, ensuring long-term reliable and high-precision measurement.
l The innovative temperature compensation algorithm and the multi-point temperature compensation check before the factory greatly improve the temperature drift of the sensor and ensure the high precision l measurement in a wide temperature range.
Performance/Advantage
l Optional LoRa or NB narrowband iot mode, wireless passive design.
lSwitzerland imported new digital high-precision sensor technology.
l Online pressure can be monitored (absolute pressure 0 … 14 bar).
l High response speed and excellent long-term stability;
l Cold condensation, resistance to particulate pollution, oil vapor and most chemicals.
l Multi-point temperature compensation check before delivery.
l Excellent anti-interference ability.
l IP65 protection grade, even in harsh environments can provide good protection.
l Through the standard RS485 interface and powerful service software, provide comprehensive sensor setup, data transmission, software upgrade and maintenance functions.
l Technical parameters
Pressure measurement range: 0 ~14 bar (absolute pressure)
Temperature measurement range: -40 ~+125℃
SF6 or SF6/N2 mixture density: 0 ~100 kg/m3
l Temperature accuracy
0 ~+50℃ : 0.3℃ (standard)
-40~0℃ and +50&~+125℃ : 0.5℃ (standard)
Pressure accuracy: @20℃; 0.3% FS
Pressure drift with temperature: 0.01bar/10℃
Density accuracy: (pure SF6, 0 ~14 bar)
0 … +40℃ %FS
-40… +60℃ 2%FS
l Output mode
Digital output: RS485 Modbus RTU
Connector: 5-pin M12 or LoRa or NB wireless communication
l Power supply
Normal measurement: 16~30V /30mA, 24V recommended
Optional Passive: Optional built-in 1200mAh high energy lithium battery
l Working environment
Operating temperature: -40~+85℃
Storage temperature: -30~+80℃
Relative humidity: 0~95%RH
Pressure environment: 0~10bar
l Other parameters
Case material: stainless steel
Protection level: IP65 or IP66 optional
Mechanical component connection: ISOG 1/2;
Stainless steel mesh filter: filter grade 30~45um
Electromagnetic compatibility: according to IEC 61326-1
l Dimensions and terminal definition drawing
Pin | one | 2 | 3 | 4 | 5 |
Signal | V+ | V- | RS485 B (D-) | RS485 A (D+) | NC |
Cable Color | brown | white | blue | black | grey |
l Communication parameter
The factory Settings are as follows:
Address: 1
Baud rate: 9600bps
Response timeout: 1 second
Response delay: 0 ms
Frame interval: 7 characters
Data length :8, parity bit: None, stop bit: 1
l Memory register definition
Logical channels, data, and hold registers
There are four hold registers in total
Data can be read by MODBUS instruction 0x03 and written by Modbus instruction 0x06
A procedure data consists of 2 bytes (1 hold register)
l Process data storage register address table
Register address | Data type | Length (bytes) | data | unit | Read/write |
one | int | 2 | SF6 temperature | ℃ | R |
2 | int | 2 | SF6 pressure | MPa | R |
3 | int | 2 | SF6 density | kg/m3 | R |
4 | int | 2 | SF6 P20 | MPa | R |
l Communication Settings store register address table
Register address |
Length byte |
content |
acquiesce |
Read/write |
50 | 2 | Device restart (write 1 to restart the device, only single-register read and write operations are supported) |
Write only | |
51 | 2 | Device address (1… 247, only single-register read and write operations are supported) | one |
Read/write |
53 |
2 | Baud rate: 1200\2400\4800\9600\14400\19200\38400\57600, only support single register read and write operation |
9600 |
Read/write |
[1] The register address table is only applicable to the Fulong station density controller project.
[2] When the 03 instruction is used to read the data, the returned data format does not meet the standard Modbus protocol standard, and the data is analyzed according to the actual format of the lower part (mainly to keep the same data return frame as the existing density controller of Fulong Station, so that the existing application software system of Fulong Station can analyze the data normally).
Main difference: The number of bytes in the returned data frame format is 2 bytes, 00 08 in the following response frame (the difference with standard Modbus is that the standard Modbus return frame response frame has only 1 byte data, remember)
Request frame:CB 03 00 01 00 04 04 63 |
Response frame :CB 03 00 08 09 92 00 34 0d 3d 00 34 ba cc |
Data parsing: device address= 203,temperature= 24.500000,Atmospheric pressure= 0.520000,density=33.889999, P20=0.520000 |
Service guarantee
l Provides interface program examples and communication protocol definitions.
l Provide detailed Chinese specifications and technical guidance.
l One year free warranty, lifelong spare parts support and maintenance.
l Hotline 365 days to answer the user's consultation.