Atech 4-20mA Water Level Probe Dam Water Level Sensor Capacitive
Water Level Sensor Drinking Water Level Controller
PL301 liquid level transmitter is based on the principle that the
measured static pressure of the liquid level is proportional to the
height of the liquid. It uses the diffusive silicon piezoresistive
effect to convert the pressure into an electrical signal. After
temperature compensation and linear calibration, it is converted
into a standard Current, voltage, RS485 and other signal outputs
can be directly connected to PLC / DSC, display instruments,
computers, etc. Has good stability and reliability. The OEM
oil-filled core is enclosed in a stainless steel housing. The
front-end protective cap plays a role in protecting the diaphragm
of the sensor, and can also make the liquid smoothly contact the
diaphragm. The waterproof wire is hermetically connected to the
shell, and the vent pipe is connected to the outside in the cable.
Anti-condensation design of internal structure. PL301 has a built-in micro signal processing circuit for remote
transmission. PL301is widely used for liquid level measurement and control in the
fields of environmental protection, water conservancy, variabl
Feature of Water Level Sensor
● Long life
● Diffused silicon oil-filed sensor cell
● CE certificate
● Reinforcement cables optional
● Intrinsically sate ,explosion proof
Specifications of Water Level Sensor
| ssure medium | liquid compatible stainless steel |
| pressure ranges | 0~1 m H2O...300 m H2O |
| overload pressure | 150%FS |
| output signal | 4~20mA, 0.4 ~4.5V, 0~5V, RS485, RS232, 868 Mhz 4~20mA+Hart |
| accuracy | 0.1%FS,0.25%FS,0.5%FS (standard) |
| load resistance | RL = (U-10)/0.02(Ω) (4~20mA current output), ＞20KΩ (voltage output) |
| long term stability | 0.2%FS/year |
| supply voltage | 10~36VDC |
| compensated temperature range | -10~70°c |
| operating temperature range | -20~85°c |
| storage temperature range | -40~125°c |
| temperature coefficient of zero | ±0.015%FS/°c@25°c |
| temperature coefficient of span | ±0.02%FS/°c@25°c |
| insulation resistance | 100MΩ@ 250VDC 100MΩ@ 500VDC |
| Pressure connection | screw thread, throw-in type |
| Protection grade | IP68 |
| material of wetted part and housing | 304SS or 316L |
| material of pressure membrane | 316L |
| Response time | 1ms |
Description PL301 Submersible level transmitter
The PL301 submersible level transmitter/hydrostatic level sensor is
designed for use in rivers, reservoirs, tanks, boreholes, vessels,
and canals. With a long-term immersion protection of 100 meters,
they are also ideal for measuring the pressure in submerged pipes
and vessels.For applications with corrosive media such as seawater or leachate,
especially for landfills, we can provide advanced duplex stainless
steel submersible level transmitters with high corrosion
resistance.
Use the triple sealed rear end assembly and custom vented PUR cable
for electrical connection to the hydrostatic level transmitter.
This provides atmospheric pressure reference and guarantees the
integrity of IP68 to a water depth of 100 meters.
The output of the standard submersible level transmitter is a
two-wire 4-20mA signal with a surge protection circuit, which can
reduce the impact of electrical transients caused by nearby
lightning strikes and power fluctuations. For applications that use
a data logger, a proportional version can be used, which provides
0.5-4.5Vdc output from a 5Vdc power supply.
