The quality of liquid level switch is guaranteed. The manufacturer directly sells portable high-prec

brand:	Panwei PW
model:	wah-2q01s
processing customization:	Yes
detection range:	0 ~ 30m
display resolution:	0 1
working temperature:	- 20 ~ + 100 ℃)
material:	ABS protection grade: IP55 probe IP68
measurement range:	0 ~ 30m
measurement accuracy:	0 1%%
working voltage:	3 7vdc V
working ambient temperature:	4 MPa
working form:	external ultrasonic
Power:	25 W
medium temperature:	- 25 ~ 70 MPa
output signal:	4 ~ 20mA, RS485, switching value
temperature:	- 25 ~ 120
pressure:	4 MPA

Product Overview
Our wah-2q01s external wall liquid level meter adopts the external measurement method of placing the active sensor on the external wall of the measured liquid container
It is the first product in the market to pass the national safety explosion-proof certification, product quality certification and manufacturing license of measuring instruments
The outer wall liquid level meter uses echo detection method and patented supporting technology to completely isolate the active sensor device from the internal space of the measured volume
The sensor is completely free from the influence of temperature, pressure and medium corrosivity of the internal environment of the container
It makes installation, use and maintenance simple and convenient
Instrument features
☆ the probe is external and does not need to open a hole in the measured container to truly realize non-contact measurement
It is suitable for toxic, volatile, flammable and easily
Accurate measurement of liquid level of liquid medium such as explosion and strong corrosion
☆ the instrument has no mechanical movable parts and long service life
No corrosion, no pollution, wide application area
☆ the instrument has built-in ASIC (Intelligent Ultrasonic special hardware integrated circuit), which makes the instrument small, stable and reliable measurement results
It can be suitable for all kinds of measured liquids and containers
It is easy to install on site without complex on-site calibration
☆ the instrument has built-in automatic temperature correction, automatic fixed distance calibration and other calibration functions to make the measurement results more accurate and reliable
☆ the instrument has complete functions, with RS485 output, 4-20mA output and switching value output
Application area
Pharmaceutical manufacturing
Liquid level control of reaction liquid in pipeline storage tank, etc

☆ Petrochemical Industry
Internal liquid level control of oil pipeline and storage tank
☆ food industry
Liquor making, beverage, milk production, storage tank pipeline and other liquid level detection and monitoring engineering projects
☆ supporting use of control system
Performance index
Measuring range: 3M, 5m, 8m, 10m, 15m, 20m, 25m, 30m, accuracy: 0
1% (excessive thickness of tank wall and unstable pressure and temperature may affect the accuracy), and the standard environmental accuracy can reach 1mm
Display: LCD display resolution: 1mm output (optional)
4 ~ 20mA (maximum load 350 Ω), RS485, switching power supply: DC 3
7V
Physical properties
Shell material: ABS protection grade: IP55 probe IP68
Installation method: magnetic direct adsorption or adhesive adapter (ferromagnetic), and then magnetic adsorption
Sensor outgoing cable: Standard 10m (optional length, optional sensor cable sheath)
Overall dimension: 165 * 86 * 35mm
Output interface: USB
Operating ambient temperature of the host: - 20 ℃ ~ + 70 ℃
Ambient temperature of ultrasonic probe: - 20 ℃ ~ + 100 ℃
Humidity: 15% ~ 100% RH
Application conditions
Media purity
  The liquid shall not be filled with dense bubbles
  A large number of solids, such as crystals, cannot be suspended in the liquid
  A large amount of sediment and sediment shall not be deposited at the bottom of the container
Medium viscosity
Dynamic viscosity & lt; Normal measurement at 10mpas
10mPaS< Dynamic viscosity & lt; The instrument range may be reduced at 30mpas
Dynamic viscosity & gt; It cannot be measured at 30mpas
Note: with the increase of temperature, the viscosity decreases, and most high viscosity liquids are more obviously affected by temperature
Therefore, pay attention to the influence of liquid temperature when measuring viscous liquids
Container under test
1
Material: the container wall where the measuring probe is installed shall be made of hard material that can well transmit signals
Examples: carbon steel, stainless steel, various hard metals, FRP, hard plastics, ceramics, glass, hard rubber and other materials or their composites
If the container wall where the measuring probe is installed is made of multi-layer materials, the layers shall be in close contact without bubbles or gas interlayer
The inner and outer surfaces of the container wall shall be flat
Examples: Vulcanized hard rubber lining, stainless steel lining and titanium lining
2
Wall thickness: 2-70mm
3
Tank type: spherical tank, horizontal tank, vertical tank, etc
Probe installation requirements
1
For iron containers, the working end face of the probe can be coated with silicone grease and directly attached to the bottom of the container with a magnetic suction cup; If the container shell is made of glass and other materials, the probe can be pasted and fixed with glue or fixed at the bottom of the container with a support
The direction of the probe must be in the same line with the measured distance
2
There is no shelter such as coil above the probe
3
Keep away from the liquid inlet at the bottom of the tank to avoid the impact of violent liquid flow on the measurement
4
Keep away from the position below the liquid inlet on the tank top to avoid the violent fluctuation of liquid level caused by liquid inlet impact affecting the measurement
5
It shall be higher than the liquid outlet or sewage outlet to avoid the impact of long-term dirt deposition at the tank bottom on the measurement
If the conditions are not met, measures shall be taken to ensure that the dirt at the tank bottom is removed regularly; 6
When the liquid level measuring head is installed by magnetic or welding / bonding fixation, the size of the installation surface on the vessel wall shall not be less than Ф 80, the surface roughness shall reach 1
6, and the inclination shall be less than 3 ° (except for bypass pipe) Product Overview
Our wah-2q01s external wall liquid level meter adopts the external measurement method of placing the active sensor on the external wall of the measured liquid container
It is the first product in the market to pass the national safety explosion-proof certification, product quality certification and manufacturing license of measuring instruments
The outer wall liquid level meter uses echo detection method and patented supporting technology to completely isolate the active sensor device from the internal space of the measured volume
The sensor is completely free from the influence of temperature, pressure and medium corrosivity of the internal environment of the container
It makes installation, use and maintenance simple and convenient
Instrument features
☆ the probe is external and does not need to open a hole in the measured container to truly realize non-contact measurement
It is suitable for toxic, volatile, flammable and easily
Accurate measurement of liquid level of liquid medium such as explosion and strong corrosion
☆ the instrument has no mechanical movable parts and long service life
No corrosion, no pollution, wide application area
☆ the instrument has built-in ASIC (Intelligent Ultrasonic special hardware integrated circuit), which makes the instrument small, stable and reliable measurement results
It can be suitable for all kinds of measured liquids and containers
It is easy to install on site without complex on-site calibration
☆ the instrument has built-in automatic temperature correction, automatic fixed distance calibration and other calibration functions to make the measurement results more accurate and reliable
☆ the instrument has complete functions, with RS485 output, 4-20mA output and switching value output
Application area
Pharmaceutical manufacturing
Liquid level control of reaction liquid in pipeline storage tank, etc

☆ Petrochemical Industry
Internal liquid level control of oil pipeline and storage tank
☆ food industry
Liquor making, beverage, milk production, storage tank pipeline and other liquid level detection and monitoring engineering projects
☆ supporting use of control system
Performance index
Measuring range: 3M, 5m, 8m, 10m, 15m, 20m, 25m, 30m, accuracy: 0
1% (excessive thickness of tank wall and unstable pressure and temperature may affect the accuracy), and the standard environmental accuracy can reach 1mm
Display: LCD display resolution: 1mm output (optional)
4 ~ 20mA (maximum load 350 Ω), RS485, switching power supply: DC 3
7V
Physical properties
Shell material: ABS protection grade: IP55 probe IP68
Installation method: magnetic direct adsorption or adhesive adapter (ferromagnetic), and then magnetic adsorption
Sensor outgoing cable: Standard 10m (optional length, optional sensor cable sheath)
Overall dimension: 165 * 86 * 35mm
Output interface: USB
Operating ambient temperature of the host: - 20 ℃ ~ + 70 ℃
Ambient temperature of ultrasonic probe: - 20 ℃ ~ + 100 ℃
Humidity: 15% ~ 100% RH
Application conditions
Media purity
  The liquid shall not be filled with dense bubbles
  A large number of solids, such as crystals, cannot be suspended in the liquid
  A large amount of sediment and sediment shall not be deposited at the bottom of the container
Medium viscosity
Dynamic viscosity & lt; Normal measurement at 10mpas
10mPaS< Dynamic viscosity & lt; The instrument range may be reduced at 30mpas
Dynamic viscosity & gt; It cannot be measured at 30mpas
Note: with the increase of temperature, the viscosity decreases, and most high viscosity liquids are more obviously affected by temperature
Therefore, pay attention to the influence of liquid temperature when measuring viscous liquids
Container under test
1
Material: the container wall where the measuring probe is installed shall be made of hard material that can well transmit signals
Examples: carbon steel, stainless steel, various hard metals, FRP, hard plastics, ceramics, glass, hard rubber and other materials or their composites
If the container wall where the measuring probe is installed is made of multi-layer materials, the layers shall be in close contact without bubbles or gas interlayer
The inner and outer surfaces of the container wall shall be flat
Examples: Vulcanized hard rubber lining, stainless steel lining and titanium lining
2
Wall thickness: 2-70mm
3
Tank type: spherical tank, horizontal tank, vertical tank, etc
Probe installation requirements
1
For iron containers, the working end face of the probe can be coated with silicone grease and directly attached to the bottom of the container with a magnetic suction cup; If the container shell is made of glass and other materials, the probe can be pasted and fixed with glue or fixed at the bottom of the container with a support
The direction of the probe must be in the same line with the measured distance
2
There is no shelter such as coil above the probe
3
Keep away from the liquid inlet at the bottom of the tank to avoid the impact of violent liquid flow on the measurement
4
Keep away from the position below the liquid inlet on the tank top to avoid the violent fluctuation of liquid level caused by liquid inlet impact affecting the measurement
5
It shall be higher than the liquid outlet or sewage outlet to avoid the impact of long-term dirt deposition at the tank bottom on the measurement
If the conditions are not met, measures shall be taken to ensure that the dirt at the tank bottom is removed regularly; 6
When the liquid level measuring head is installed by magnetic or welding / bonding fixation, the size of the installation surface on the vessel wall shall not be less than Ф 80, the surface roughness shall reach 1
6, and the inclination shall be less than 3 ° (except for bypass pipe) Product Overview
Our wah-2q01s external wall liquid level meter adopts the external measurement method of placing the active sensor on the external wall of the measured liquid container
It is the first product in the market to pass the national safety explosion-proof certification, product quality certification and manufacturing license of measuring instruments
The outer wall liquid level meter uses the echo detection method and patented supporting technology to connect the active sensor device with the internal space of the measured volume