Level Sensors

Level sensors determine how full or how empty a container is. Level sensors provide an output electrical signal at predetermined levels to communicate when to open or close control valves.


Level Sensor Types


The choice of sensors is usually determined by which substance is being measured, the environment in which the sensor is to used and in which position the sensor needs to be mounted. Some of the most common level sensors are:


Capacitive level switches


  • Capacitive level switches provide a basic full/empty level indication determined by the mounting position of the sensor. This type of switch is non-contact and uses a sensing field to determine liquid levels. Capacitive sensors provide accurate switching even with heavy residue build-up.

Vibrating level probes


  • Vibrating level probes use a rod or a fork that constantly produce high-frequency vibrations. When the vibrating probe comes into contact with the medium, the vibration changes and the vibrating level switch outputs a switching command. Vibrating level switches are used as overfill protection devices or low-level indicators in liquids as well as in granular and powder bulk solids.

Conductive level switches


  • Conductive level switches are sensors that use stainless steel probes with an electrical contact output to measure a specific liquid level. Used in conjunction with a level control relay to set and monitor each probe. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks.

Ultrasonic level sensors


  • Ultrasonic level sensors generate ultrasonic sound pulses that are reflected by the surface of a liquid medium. The time travelled by the ultrasonic pulse is calculated by the sensor which then determines the distance of the liquid to give an accurate fill level. The ultrasonic sensor’s response is influenced by turbulence, pressure, moisture, and temperature.

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กำลังดูสินค้า 461 - 469 รายการจาก 469 รายการ / Viewing 461 - 469 of 469 products
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รายละเอียดสินค้า / Description ราคา / Price Device Type Mounting Type Switch Output Body Material Cable Length Communication Protocol Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating
RS Stock No. 175-5061
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LFV200-XXSGBIPM
Brand :Sick
THB8,535.20
Each
Units
Vibrating Level Switch G1/2 Thread PNP PEI, Stainless Steel 1.4404 - IO-LINK -40°C +70°C - 30V 250 mA 64bar - -
RS Stock No. 205-1299
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.31134006
Brand :WIKA
THB9,790.39
Each
Units
Optoelectronic Panel Mount PNP Stainless Steel - - - - - - - - - -
RS Stock No. 889-1365
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DL24-00
Brand :Flowline
THB20,107.91
Each
Units
Ultrasonic Level Transmitter Vertical 2 Wire Relay Polycarbonate 1.2m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS Stock No. 193-6766
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LLG610D3L24-004
THB4,001.15
Each
Units
Liquid Level Switch Threaded Mount PNP Stainless Steel 316L - - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA
RS Stock No. 768-1971
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SONS62.EXXX
Brand :Vega
THB32,179.53
Each
Units
Vibrating Rod Chassis Mount - ABS - - -40°C +80°C - - 20 mA - - -
RS Stock No. 193-6785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LLG710D3L24-004-D
THB6,949.38
Each
Units
Liquid Level Switch Threaded Mount PNP Stainless Steel 316L - - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA
ใหม่ / New
RS Stock No. 210-3164
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.226552
Brand :Gems Sensors
THB2,095.74
Each
Units
Electro-Optic M12x1-8* Direct Load Housing = Polysulfone (Contact Gems for alternative material types)Prism = PolysulfoneO-Ring = Fluorocarbon (1/4? MNPT - None)Electronics = Over-molded TPE 119.8mm - - - - - - - - -
ใหม่ / New
RS Stock No. 208-5503
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SOLIBAPRP230VAC
Brand :ATMI
THB10,352.86
Each
Units
Level Indicator Panel Mount SPST NO/NC Glass Fiber Reinforced ABS - - - - - - - - - -
RS Stock No. 193-6784
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LLG710D324-004-D
THB6,949.38
Each
Units
Liquid Level Switch Threaded Mount PNP Stainless Steel 316L - - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA