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.

...
顯示內容 隱藏內容

篩選條件

正在檢視 81 - 100,共 467 項產品
Results per page
Description 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庫存編號 869-7665
製造零件編號ILLS-G0250-D-005
BrandCynergy3
TWD9,349.00
單位
Pressure Cable 0.5-4.5V Stainless Steel 5m - -20°C +60°C - 32V - 20bar - -
RS庫存編號 189-2699
製造零件編號LBFS-01121.0
BrandBaumer
TWD5,996.00
單位
Level Switch G 1/2" Fitting PNP Stainless Steel - - -40°C +85°C - 30V 50 mA 100bar - 20 mA
RS庫存編號 193-6782
製造零件編號LLG610D324-004-D
TWD7,420.00
單位
Liquid Level Switch Threaded Mount PNP Stainless Steel 316L - - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA
RS庫存編號 768-1962
製造零件編號SONS61.EEEA
BrandVega
TWD40,410.00
單位
Vibrating Rod - Relay - - - - - - - 20 mA - - -
全新
RS庫存編號 210-3154
製造零件編號226542
TWD2,138.00
單位
Electro-Optic 1/2?- 20UNF-2B* Direct Load Housing = Polysulfone (Contact Gems for alternative material types)Prism = PolysulfoneO-Ring = Fluorocarbon (1/4? MNPT - None)Electronics = Over-molded TPE 119.8mm - - - - - - - - -
RS庫存編號 869-7655
製造零件編號ILLS-G0500-5-007
BrandCynergy3
TWD10,171.00
單位
Pressure Cable 4-20mA Stainless Steel 7m - -20°C +60°C - 32V 28 mA 10bar - -
全新
RS庫存編號 210-0690
製造零件編號LFFS-021.0
BrandBaumer
TWD12,468.00
單位
Level Switch Threaded PNP Stainless Steel - - - - - - - - - -
RS庫存編號 780-0321
製造零件編號OLS210D324-003
BrandCynergy3
TWD3,697.00
單位
Optical Sensor Chassis Mount Transistor Polysulfone 250mm - -40°C +125°C - - 1 A 7bar - -
RS庫存編號 177-9142
製造零件編號9038CG36Z20
TWD14,318.00
單位
Mechanical Alternator Screw In 4 NC DPST Painted Cold-Rolled Steel - - -22°F +220°F 230 (Single Phase) V, 475 (3 Phase) V 230V - - - -
RS庫存編號 193-6793
製造零件編號LLG710D324-003-D
TWD7,914.00
單位
Liquid Level Switch Threaded Mount NPN Stainless Steel 316L - - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA
全新
RS庫存編號 210-7473
製造零件編號7MF1572-1HA10
BrandSiemens
TWD23,165.00
單位
Hydrostatic Level Transmitter Cable 2 Wire Stainless Steel - - - - - - - - - -
RS庫存編號 189-2697
製造零件編號LBFS-01111.0
BrandBaumer
TWD5,266.00
單位
Level Switch G 1/2" Fitting PNP Stainless Steel - - -40°C +85°C - 30V 50 mA 100bar - 20 mA
RS庫存編號 780-0337
製造零件編號OLS710D3L24-003
BrandCynergy3
TWD2,761.00
單位
Optical Sensor Chassis Mount Transistor Polysulfone 250mm - -40°C +125°C - - 1 A 7bar - -
RS庫存編號 182-5612
製造零件編號PS69.AXBXXCHXKMXXX
BrandVega
TWD98,719.00
單位
Level Sensor Slip on Flange or Bracket 2 Wire, 4 to 20 mA PTB VALOX - - -40°C +80°C 253V 35V 22 mA 2bar - 4 → 20 mA
RS庫存編號 387-0379
製造零件編號KON66.XG3VPR
BrandVega
TWD15,610.00
單位
Conductive Vertical Relay Plastic - - -40°C +100°C - - 1 A dc, 3 A ac 6bar - -
RS庫存編號 177-9130
製造零件編號9038CG36LZ20
TWD13,302.00
單位
Mechanical Alternator Screw In 4 NC DPST Painted Cold-Rolled Steel - - -22°F +220°F 230 (Single Phase) V, 475 (3 Phase) V 230V - - - -
RS庫存編號 616-3028
製造零件編號208995
TWD1,600.00
單位
Electro Optic Horizontal, Vertical - Polyethersulfone - - -40°C +125°C - - 18 mA 250psi - -
RS庫存編號 804-3963
製造零件編號7ML5746-1BA00-1AA0
BrandSiemens
TWD40,711.00
單位
Vibrating Level Switch Vertical Relay Stainless Steel - - -50°C +250°C - - 400 mA 64bar - -
RS庫存編號 144-2575
製造零件編號7ML5201-0FA0
BrandSiemens
TWD37,972.00
單位
Ultrasonic Clamp Mount - PBT - - -30°C +60°C - 30V - - - 25 mA
全新
RS庫存編號 210-3164
製造零件編號226552
TWD2,138.00
單位
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 - - - - - - - - -