Overview
| brand | Wanhe Zhongyi | model | WH311 |
| resolving power | zero point two five | specifications | 0m~1000m |
| Sensor type | Input type sensor | response time | zero point three |
| Installation type | Input type | working temperature | -30 ℃~85 ℃ |
| application area | water | Minimum number of packages | one |
| Material number | twenty-three | quantity | ten thousand |
Product Details
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Shenzhen Dongfang Wanhe Instrument Co., Ltd. was established in 2012, with three major brands under its umbrella: "WHSENSORS", "Dongfang Dekong", and "Wanhe Zhongyi".
Groundwater level transmitter WH311 lightning protection water level measuring instrument
Whether it is liquid level measurement in deep wells, reservoirs, rivers, etc., or water level monitoring in fire water tanks/water tanks, Shenzhen Dongfang Wanhe has achieved excellent performance in liquid level measurement.
Monitoring occasions for reservoirs, rivers, and groundwater - using water level monitoring before and after the reservoir gate
Deep well liquid level measurement occasions - Deep well dedicated series can display up to centimeters
Fire water tank liquid level display occasions - including a complete set of fire acceptance documents
Sewage treatment occasions - Application of anti blocking design
Liquid level monitoring and monitoring occasions - Liquid level and temperature integrated sensors can simultaneously measure water level and temperature
Groundwater level transmitter WH311 lightning protection water level measuring instrument
case analysis
Engineers from Dongfang Wanhe Instrument helped China Railway Fourth Engineering Group, China Construction Second Engineering Bureau, Gezhouba Nanjing Underground Space, etcDozens of users have implemented real-time water level monitoring with recording function, and data can be directly exported using a USB flash drive. Now let's focus on analyzing the Gezhouba Nanjing underground space record monitoring plan:
User: Gezhouba Nanjing Underground Space
Requirement: There are 5 deep wells on site, with a depth of 100 meters. The liquid level inside the deep wells needs to be monitored in real-time, and the measurement data needs to be recorded once a minute, in real-time, and can be copied out using a USB flash drive. The data can be automatically generated in a table format.
Local display of groundwater level gauge WH311 lightning protection water level measuring instrument
60 seconds can be set
4G memory
6 channels
Every 5 seconds
Recordable for three years
100 million data
Groundwater level indicator WH311 lightning protection water level measuring instrument solution:
1. Place the liquid level probe WH311 directly at the bottom of a 100 meter deep well. During the placement process, it can be lowered together with the deep well pump. During the placement process, protect the steel wire cable (if the cable is damaged, there will be no output signal)
2: Use a 2 * 1.5 square meter shielded cable to transmit the signal from terminal 4 and terminal 5 of WH6-A1 to the paperless recorder in the control room, and then connect terminal 4 of display 1 to 1C and terminal 5 to 1A according to the number
Introduction to WH311 Lightning Protection Water Level Measuring Instrument for Groundwater Level Indicator
WH311 water level display instrumentIt is a fully sealed submerged diffusion silicon liquid level measuring instrument. The 311 model uses a pressure resistance pressure sensor and high-precision transmitter that have undergone long-term stability and reliability tests. The dedicated circuit is installed in a stainless steel shell to form an integrated structure and standardized signal, providing convenience for on-site use and automation control. Dedicated cables are sealed and connected to the casing, allowing for long-term use in liquids compatible with transmitter structural materials.
WH311 Lightning Protection Water Level Measuring Instrument WH311 Water Level Display Instrument Produced by Shenzhen Dongfang Wanhe InstrumentAdopting Texas Instruments (TI), the original chip amplification circuit greatly improves the stability of sensor signal output. Users can use a 2X1.5 square meter shielded cable to extend the water level probe from the fire water tank (pool) to the fire control center and connect it to the WH6 liquid level display meter. The high-performance chip greatly reduces signal attenuation, and the remote transmission distance can reach 5 kilometers.
Advantages of groundwater level transmitter WH311 lightning protection water level measuring instrument:
The 10000 and WH311 water level probes adopt a fully sealed stainless steel integrated structure without external adjustment
The housing protection level of the 20000 and WH311 sensors is IP68, and the display meter is installed in a convenient location for wiring
The 30000 and WH311 water level gauges are suitable for deep water level (temperature) measurement, with a range as low as 0.5M of water and can withstand strong pressure shocks
4. WH311 has obtained CE certification and ROHS certification
The 50000 and WH311 liquid level probes are equipped with built-in lightning protection modules, effectively protecting against outdoor use
60000 and WH311 intelligent core motherboards, with signals that can be transmitted to a display 5 kilometers away, displaying water level and height in real-time
The functional characteristics of the groundwater level transmitter WH311 lightning protection water level measuring instrument:
10000 and WH311 real-time display of deep groundwater level, with a measurement accuracy of up to 1 centimeter
20000 and WH311 have a large measurement range of up to 1000 meters
30000 and WH311AI intelligent remote display, built-in intelligent signal amplifier, long-distance lossless signal transmission distance up to 5km
40000 and WH311 simulate pressure waterproof testing at a depth of 1000 meters, with a service life of up to ten years, truly achieving the goal of one unit top three units
5Wanhe WH311Integrated liquid level and temperature measurement, capable of simultaneously measuring temperature and liquid level
Technical parameters of groundwater level transmitter WH311 lightning protection water level measuring instrument:
Main technical parameters of Wanhe WH311 liquid level sensor: (Detailed parameters)
Range: 0-100m (water level high/deep)
Comprehensive accuracy: 0.5% FS; Output signal: 4-20mA (two wire system), power supply voltage: 24DCV (9-36DCV)
Medium temperature: 0-60 ℃
Environmental temperature: Normal temperature (-20~60 ℃)
Load resistance: up to 800 Ω; Insulation resistance: greater than 2000M Ω (100VDC)
Sealing level: IP68
Boundary dimensions of liquid level sensor:
Main technical parameters of Wanhe WH6 display controller:
Display range: -999~9999
Accuracy: ± 0.5%+1 words;
Relay output: AC250V/3A (resistive load) upper and lower limit two sets of normally open and normally closed outputs, which can be set arbitrarily by oneself;
Working power supply: AC220V, 50Hz;
The external dimensions of the instrument are 160 * 80 * 95 (mm), and other sizes are also available for selection;
Installation hole size of instrument: 152 * 76 (mm);
Input signal of the instrument: 4-20mA for a two wire transmitter. To obtain a current of 4-20mA, simply connect it in series in the liquid level sensor circuit.
Installation precautions and wiring of groundwater level indicator WH311 lightning protection water level measuring instrument:
The shell of the Shenzhen Dongfang Wanhe WH311 water level display instrument is made of all stainless steel material, and the sensor and shell connection parts are welded by laser. The signal transmission uses steel wire protection special cables to improve tensile strength, wear resistance, and corrosion resistance. This product has gradually been applied to underground liquid level measurement of coalbed methane wells, farmland irrigation wells and pump stations, seismic monitoring well liquid level measurement, geological exploration deep well hydrological measurement, reservoir dam monitoring, groundwater resource management, and monitoring of geothermal wells, industrial water tanks, ships and marine equipment, etc., greatly meeting the requirements of measuring complex environments. In order to facilitate users to avoid the impact and losses caused by improper operation on subsequent work during installation and use, the following are precautions for installation and use, to be shared with new and old users.
1、 Installation
The transmitter and oil pipe (water pipe) are installed together in the well;
1. The deep well liquid level transmitter should be fixed with a matching oil pipe (water pipe) special clamp to prevent damage to the cable due to squeezing. The sensor should be installed vertically to avoid impurities such as sediment burying or blocking the transmitter probe. 2. The three-way outlet part is filled with special sealant pad and sealant, and the extrusion nut is tightened with a wrench to prevent air and water leakage. 3. The entire signal line is led to the interior of the distribution cabinet to prevent rainwater from seeping into the cable at the junction and causing damage. The transmitter is used for the installation of hydrological, seismic monitoring wells, and reservoir dams. 4. When the transmitter is used for underground measurement alone and the cable length is greater than 100 meters, an additional load-bearing steel wire rope should be added to run down the well together with the signal cable to protect the signal cable from damage caused by excessive force.
2、 Trial operation - To ensure stable and accurate operation of the transmitter, power on and preheat for 15 minutes before testing the liquid level.
3、 Instructions - During the installation process, ensure that the transmitter is securely tightened before powering on for measurement; Disconnect the power supply before disassembly.
4、 Product maintenance - Only use neutral reagents to clean the transmitter, avoid using corrosive reagents such as acid, alkaline solvents, household detergents, etc. The transmitter belongs to precision instruments and should be stored in a dry and ventilated indoor environment, avoiding direct sunlight.
5、 Precautions
1. Confirm whether the output voltage of the power supply is correct; The positive and negative connections of the power supply correspond to the positive and negative connections of the product; The liquid level * large height is within the range of the product; 2. The sensor of the probe is a precision device. Users should not disassemble it by themselves or touch the diaphragm during use to avoid damage to the product; 3. Please avoid immersing the cable terminal of the liquid level transmitter (at the warning sign) in water, which may cause water to enter the ventilation line and damage the transmitter due to water ingress; 4. Please avoid scratching the cable of the liquid level transmitter by knives or other sharp metal objects, which may cause damage to the transmitter due to water ingress.
WanheGroundwater level transmitter WH311 lightning protection water level measuring instrumentThe display parameters of have been debugged before leaving the factory. Now, turn on the power to the display, and connect the positive (red) wire of the water level gauge probe signal extension line to pin 16 on the back of the instrument, while the negative (green) wire is connected to pin 14. You can display the measured water level of the fire pool in real-time.
I hope that industry users can understand the correct use of input type deep well liquid level transmitters in the use and installation environment through these contents, so as to become more proficient.
Groundwater level transmitter WH311 lightning protection water level measuring instrumentProduct certification of groundwater deep well liquid level measuring instrument:
WH311 groundwater deep well water level measuring instrumentThe product quality inspection report of China Inspection and Certification Group complies with GB4943.1-2011 Information Technology Equipment Part 1, GB/T Information Technology Equipment Immunity Limits and Measurement Methods, and GB9254-2008 Information Technology Equipment Radio Disturbance Limits and Measurement Methods - Engineers choose WH311, with one more quality inspection and one more guarantee
SGS Standard Technical Services Co., Ltd. (SGS, SGS China, SGS Standard)Globally recognized and well-knownInspection, appraisal, testing, and certification bodies,The WH311 groundwater deep well water level measuring instrument has passed the SGS calibration certificate with certificate number 200006512. The certificate records that the * large error of Dongfang Wan and WH311 is 0.009mA, and the actual accuracy exceeds one thousandth, reaching the error range of six thousandths.
After ten years of quality assurance, the groundwater level transmitter WH311 lightning protection water level measuring instrument produced by Shenzhen Dongfang Wanhe Instrument Co., Ltd. has become a water system solution manufacturer. Wanda Group, China Telecom, Qinyuan Group, China Resources Snow Flower, Jinjiu Group In 2019, all customers of our team promised that each water level gauge will be delivered without damage or leakage. Any product has a five-year warranty under normal use and comes with all product testing certificates.
case analysis
Engineers from Dongfang Wanhe Instrument helped China Railway Fourth Engineering Group, China Construction Second Engineering Bureau, Gezhouba Nanjing Underground Space, etcDozens of users have implemented real-time water level monitoring with recording function, and data can be directly exported using a USB flash drive. Now let's focus on analyzing the Gezhouba Nanjing underground space record monitoring plan:
User: Gezhouba Nanjing Underground Space
Requirement: There are 5 deep wells on site, with a depth of 100 meters. The liquid level inside the deep wells needs to be monitored in real-time, and the measurement data needs to be recorded once a minute, in real-time, and can be copied out using a USB flash drive. The data can be automatically generated in a table format.
Local display of groundwater level gauge WH311 lightning protection water level measuring instrument
60 seconds can be set
4G memory
6 channels
Every 5 seconds
Recordable for three years
100 million data
Groundwater level indicator WH311 lightning protection water level measuring instrument solution:
1. Place the liquid level probe WH311 directly at the bottom of a 100 meter deep well. During the placement process, it can be lowered together with the deep well pump. During the placement process, protect the steel wire cable (if the cable is damaged, there will be no output signal)
2: Use a 2 * 1.5 square meter shielded cable to transmit the signal from terminal 4 and terminal 5 of WH6-A1 to the paperless recorder in the control room, and then connect terminal 4 of display 1 to 1C and terminal 5 to 1A according to the number
Introduction to WH311 Lightning Protection Water Level Measuring Instrument for Groundwater Level Indicator
WH311 water level display instrumentIt is a fully sealed submerged diffusion silicon liquid level measuring instrument. The 311 model uses a pressure resistance pressure sensor and high-precision transmitter that have undergone long-term stability and reliability tests. The dedicated circuit is installed in a stainless steel shell to form an integrated structure and standardized signal, providing convenience for on-site use and automation control. Dedicated cables are sealed and connected to the casing, allowing for long-term use in liquids compatible with transmitter structural materials.
WH311 Lightning Protection Water Level Measuring Instrument WH311 Water Level Display Instrument Produced by Shenzhen Dongfang Wanhe InstrumentAdopting Texas Instruments (TI), the original chip amplification circuit greatly improves the stability of sensor signal output. Users can use a 2X1.5 square meter shielded cable to extend the water level probe from the fire water tank (pool) to the fire control center and connect it to the WH6 liquid level display meter. The high-performance chip greatly reduces signal attenuation, and the remote transmission distance can reach 5 kilometers.
Advantages of groundwater level transmitter WH311 lightning protection water level measuring instrument:
The 10000 and WH311 water level probes adopt a fully sealed stainless steel integrated structure without external adjustment
The housing protection level of the 20000 and WH311 sensors is IP68, and the display meter is installed in a convenient location for wiring
The 30000 and WH311 water level gauges are suitable for deep water level (temperature) measurement, with a range as low as 0.5M of water and can withstand strong pressure shocks
4. WH311 has obtained CE certification and ROHS certification
The 50000 and WH311 liquid level probes are equipped with built-in lightning protection modules, effectively protecting against outdoor use
60000 and WH311 intelligent core motherboards, with signals that can be transmitted to a display 5 kilometers away, displaying water level and height in real-time
The functional characteristics of the groundwater level transmitter WH311 lightning protection water level measuring instrument:
10000 and WH311 real-time display of deep groundwater level, with a measurement accuracy of up to 1 centimeter
20000 and WH311 have a large measurement range of up to 1000 meters
30000 and WH311AI intelligent remote display, built-in intelligent signal amplifier, long-distance lossless signal transmission distance up to 5km
40000 and WH311 simulate pressure waterproof testing at a depth of 1000 meters, with a service life of up to ten years, truly achieving the goal of one unit top three units
5Wanhe WH311Integrated liquid level and temperature measurement, capable of simultaneously measuring temperature and liquid level
Technical parameters of groundwater level transmitter WH311 lightning protection water level measuring instrument:
Main technical parameters of Wanhe WH311 liquid level sensor: (Detailed parameters)
Range: 0-100m (water level high/deep)
Comprehensive accuracy: 0.5% FS; Output signal: 4-20mA (two wire system), power supply voltage: 24DCV (9-36DCV)
Medium temperature: 0-60 ℃
Environmental temperature: Normal temperature (-20~60 ℃)
Load resistance: up to 800 Ω; Insulation resistance: greater than 2000M Ω (100VDC)
Sealing level: IP68
Boundary dimensions of liquid level sensor:
Main technical parameters of Wanhe WH6 display controller:
Display range: -999~9999
Accuracy: ± 0.5%+1 words;
Relay output: AC250V/3A (resistive load) upper and lower limit two sets of normally open and normally closed outputs, which can be set arbitrarily by oneself;
Working power supply: AC220V, 50Hz;
The external dimensions of the instrument are 160 * 80 * 95 (mm), and other sizes are also available for selection;
Installation hole size of instrument: 152 * 76 (mm);
Input signal of the instrument: 4-20mA for a two wire transmitter. To obtain a current of 4-20mA, simply connect it in series in the liquid level sensor circuit.
The shell of the Shenzhen Dongfang Wanhe WH311 water level display instrument is made of all stainless steel material, and the sensor and shell connection parts are welded by laser. The signal transmission uses steel wire protection special cables to improve tensile strength, wear resistance, and corrosion resistance. This product has gradually been applied to underground liquid level measurement of coalbed methane wells, farmland irrigation wells and pump stations, seismic monitoring well liquid level measurement, geological exploration deep well hydrological measurement, reservoir dam monitoring, groundwater resource management, and monitoring of geothermal wells, industrial water tanks, ships and marine equipment, etc., greatly meeting the requirements of measuring complex environments. In order to facilitate users to avoid the impact and losses caused by improper operation on subsequent work during installation and use, the following are precautions for installation and use, to be shared with new and old users.
1、 Installation
The transmitter and oil pipe (water pipe) are installed together in the well;
1. The deep well liquid level transmitter should be fixed with a matching oil pipe (water pipe) special clamp to prevent damage to the cable due to squeezing. The sensor should be installed vertically to avoid impurities such as sediment burying or blocking the transmitter probe. 2. The three-way outlet part is filled with special sealant pad and sealant, and the extrusion nut is tightened with a wrench to prevent air and water leakage. 3. The entire signal line is led to the interior of the distribution cabinet to prevent rainwater from seeping into the cable at the junction and causing damage. The transmitter is used for the installation of hydrological, seismic monitoring wells, and reservoir dams. 4. When the transmitter is used for underground measurement alone and the cable length is greater than 100 meters, an additional load-bearing steel wire rope should be added to run down the well together with the signal cable to protect the signal cable from damage caused by excessive force.
2、 Trial operation - To ensure stable and accurate operation of the transmitter, power on and preheat for 15 minutes before testing the liquid level.
3、 Instructions - During the installation process, ensure that the transmitter is securely tightened before powering on for measurement; Disconnect the power supply before disassembly.
4、 Product maintenance - Only use neutral reagents to clean the transmitter, avoid using corrosive reagents such as acid, alkaline solvents, household detergents, etc. The transmitter belongs to precision instruments and should be stored in a dry and ventilated indoor environment, avoiding direct sunlight.
5、 Precautions
1. Confirm whether the output voltage of the power supply is correct; The positive and negative connections of the power supply correspond to the positive and negative connections of the product; The liquid level * large height is within the range of the product; 2. The sensor of the probe is a precision device. Users should not disassemble it by themselves or touch the diaphragm during use to avoid damage to the product; 3. Please avoid immersing the cable terminal of the liquid level transmitter (at the warning sign) in water, which may cause water to enter the ventilation line and damage the transmitter due to water ingress; 4. Please avoid scratching the cable of the liquid level transmitter by knives or other sharp metal objects, which may cause damage to the transmitter due to water ingress.
WanheGroundwater level transmitter WH311 lightning protection water level measuring instrumentThe display parameters of have been debugged before leaving the factory. Now, turn on the power to the display, and connect the positive (red) wire of the water level gauge probe signal extension line to pin 16 on the back of the instrument, while the negative (green) wire is connected to pin 14. You can display the measured water level of the fire pool in real-time.
I hope that industry users can understand the correct use of input type deep well liquid level transmitters in the use and installation environment through these contents, so as to become more proficient.
Groundwater level transmitter WH311 lightning protection water level measuring instrumentProduct certification of groundwater deep well liquid level measuring instrument:
WH311 groundwater deep well water level measuring instrumentThe product quality inspection report of China Inspection and Certification Group complies with GB4943.1-2011 Information Technology Equipment Part 1, GB/T Information Technology Equipment Immunity Limits and Measurement Methods, and GB9254-2008 Information Technology Equipment Radio Disturbance Limits and Measurement Methods - Engineers choose WH311, with one more quality inspection and one more guarantee
SGS Standard Technical Services Co., Ltd. (SGS, SGS China, SGS Standard)Globally recognized and well-knownInspection, appraisal, testing, and certification bodies,The WH311 groundwater deep well water level measuring instrument has passed the SGS calibration certificate with certificate number 200006512. The certificate records that the * large error of Dongfang Wan and WH311 is 0.009mA, and the actual accuracy exceeds one thousandth, reaching the error range of six thousandths.
After ten years of quality assurance, the groundwater level transmitter WH311 lightning protection water level measuring instrument produced by Shenzhen Dongfang Wanhe Instrument Co., Ltd. has become a water system solution manufacturer. Wanda Group, China Telecom, Qinyuan Group, China Resources Snow Flower, Jinjiu Group In 2019, all customers of our team promised that each water level gauge will be delivered without damage or leakage. Any product has a five-year warranty under normal use and comes with all product testing certificates.
Trading Area
Global