







Deep Well Water Level Sensor Submersible Pressure Transmitter
New Products From This Supplier
WH311 Series
Ballast tanks; Ground water monitoring; Surface water monitoring; Deep watering; Down hole; Remediation and other environmental monitoring applications,etc.
Sewage lift stations, industrial slurry, industrial sumps, landfill leach ate, reservoirs, sludge pits, oil tanks, etc. reservoirs, sludge pits, oil tanks, etc.
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SPECIFICATIONS |
Step Two |
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Service: |
Compatible liquids |
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Liquid level Range |
0-25mH2O/ 0-35.7 psig |
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Wetted Materials: |
Sensor: |
316 SS |
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Cable: |
PVC |
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Label: |
Laser marking |
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Accuracy: |
±0.25% of full scale |
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Temperature Limit: |
‐4 to 212°F (‐20 to 100°C) |
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Pressure Limit: |
2X full scale |
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Power Requirement: |
220 VAC |
WH6 Display(220V) in charge of WH311transmitter’s power supply |
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Output Signal: |
4 to 20 mA DC, 2‐wire |
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Response Time: |
<300 ms |
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Max. Loop Resistance: |
1000 ohms @ 30 VDC |
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Electrical Connections: |
Submersible cable terminating in pigtail leads , PVC jacketed shielded cable with polyethylene vent tube |
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Cable Length: |
500m |
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Mounting Connection: |
Suspended below point being monitored |
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Electrical Protection: |
Surge/lightning protected per EN61000‐4‐5, Class 5 |
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Sensor Weight: |
Sensor: 265g approx) |
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Classification: |
General Purpose |
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Compliance: |
CE |
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Protection Class |
IP 68 |
Power Supply Voltage vs. Loop Resistance
Rev WH 3 of 6
TECHNOLOGY Step Three
Technology: A sealed pressure transmitter is placed near or on the bottom of the tank. A stainless steel pressure diaphragm within the pressure transmitter is exposed on one side to the application liquid. The other side is exposed to the reference pressure via a small ventilation tube located inside of the PVC cable. A difference in pressure between liquid and reference pressures will slightly deflect the diaphragm. The deflection of the diaphragm is measured by a built‐in microprocessor that provides greater linearity correction over common thermal compensation methods. A 4‐20 mA current signal proportional the height of the liquid is generated from the microprocessor.
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SAFETY PRECAUTIONS Step Four
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT. This manual includes information on all versions of the WHSENSORS Series Pressure Level Transmitter ; series WH311. Please refer to the part number located on the transmitter label to verify the exact model which you have purchased.
User’s Responsibility for Safety: WHSENSORS manufactures a wide range of liquid level sensors and technologies. While each of these technologies are designed to operate in a wide variety of applications, it is the user’s responsibility to select a technology that is appropriate for the application, install it properly, perform tests of the installed system, and maintain all components. The failure to do so could result in property damage or serious injury.
Proper Installation and Handling: Only properly‐trained staff should install and/or repair this product. Use a proper sealant with all installations. Always check for leaks prior to system start‐up.
WH311 series liquid level transmitter are designed to meet the rigorous environments of applications such as deep well monitoring, pump tests,lift stations, chemical tank levels,groundwater and surface water measurement, and process control. Providing a 4-20mA output signal compatible with DCS,PLC s, panel meters, data loggers, and other electronic equipment.This is ideal for solar or battery powered installations. These transmitters can offer all ranges equivalent from 1 psi through 300psi while all units of measure and cable lengths are customer-defined for individualized specifications.
The WHsensors WH311Series Submersible Level Transmitters are manufactured for years of trouble free service. The pressure transmitter measures the height of liquid above the position in the tank referenced to atmospheric pressure. Lightning and surge protection (not guaranteed or covered by standard warranty) is included standard to stand up in harsh applications. The transmitters are vented for barometric pressure compensation. Vent is covered with a maintenance‐free filter preventing particulate or water droplets from entering the transmitter. We offer the WH311 desiccant filter that can be attached to the vent tube.
Wiring and Electrical: CAUTION: Do not exceed specified supply voltage rating of 220 VAC. Permanent damage not covered by warranty will result. This device is not designed for 220 volt AC operation. Use only on connect with WH6 DISPLAY.This WH6 display is embedded with 24VDC power module ,support WH311 transmitter daily working .
Temperature and Pressure: The WH311series are designed for use in application temperatures from ‐20° to 100°C (‐4° to 212°F). Both series are designed for use at pressures up to 2 x the full span.
Material Compatibility: Both series are made of 316 Stainless Steel (316 SS) with a cable of PVC. Make sure that the model which you have selected is chemically compatible with the application liquids.
Flammable, Explosive and Hazardous Applications: DO NOT USE WH311 SERIES
LEVEL TRANSMITTER IN HAZARDOUS LOCATIONS.
Make a Fail‐Safe System: Design a fail‐safe system that accommodates the possibility of transmitter failure or battery power loss. In critical applications, whsensors recommends the use of redundant backup systems and alarms in addition to the primary system.




Business Nature
Manufacturer
Country/Region
Shenzhen, China
Main Products
Liquid Level Sensors, Ground Water Level Sensor ...
Payment Terms
Cash, Bank wire (T/T)
Welcome to WHSENSORS Online - your first source for information on pressure measurement products. WHsensors design, manufacture and market the best pressure /level measurement and control instruments for your gas&oil , chemical, water and wastewater applications.WHsensors products are sold and supported worldwide through our stocking distribution partners.Customers include design engineers, system integrators, original equipment manufacturers, facility management and maintenance decision makers. You can rest assured that every product Pressure measurement will be of the highest quality. "We Do Our Pressure Measurement Best .” This is our philosophy. That's why WHSENSORS has concentrated on electronic pressure measurement technology from the beginning. WHsensors is a worldwide leader providing innovative pressure and level transmitters. Our high accuracy transducers and rugged pressure transmitters provide repeatable measurements, are designed for all pressure ranges and most temperatures. WHsensors pressure sensors offer mV/V, voltage and 4-20 mA outputs along with a wide variety of electrical connections and pressure port fittings. Our pressure sensor product families include standard duty pressure transmitters, high accuracy pressure transducers, differential pressure transmitters, submersible pressure sensors, process pressure transmitters, sanitary pressure transducers, flush mount pressure sensors, severe duty pressure transmitters, and special duty pressure sensors. For half a century, WHsensors has been solving pressure, level measurement, extreme temperature and fast response problems in some of the toughest application environments - highly corrosive media, damaging cyclic pressure, severe shock and vibration. WHsensors pressure sensors and level measurement sensors and transmitters are designed for applications such as oil and gas services, steel production, food and medical equipment, injection molding, die casting, and chemical production .