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 1 - 20 รายการจาก 66 รายการ / Viewing 1 - 20 of 66 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. 889-1400
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FT10-1305
Brand :Flowline
THB7,897.02
Each
Units
Liquid and Gas Flow Switch Cable - Polypropylene 3m - -40°C +60°C - 36V - 150psi Viton 1 A
RS Stock No. 889-1166
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LU10-1405
Brand :Flowline
THB11,641.80
Each
Units
Ultrasonic Level Switch Cable - Polypropylene 3m - -40°C +80°C - 36V - 150psi Viton 500 mA
RS Stock No. 889-1378
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DS14-01
Brand :Flowline
THB16,413.89
Each
Units
Controller, Ultrasonic Level Switch Vertical - Polycarbonate 1.2m - -35°C +60°C 24V 24V - 30psi Viton 1 A
RS Stock No. 124-0112
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DL24-01
Brand :Flowline
THB18,620.29
Each
Units
Ultrasonic Level Transmitter Vertical - PC 1.2m - -35°C +60°C - 24V 20 mA 2bar FKM 1 A
RS Stock No. 124-0133
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LR15-0010-20
Brand :Flowline
THB91,632.66
Each
Units
Pulse Radar Level Transmitter Flange Mount - Aluminium - - -60°C +150°C - 26V 20 mA 10.3bar Silicone 22.5 mA
RS Stock No. 889-1286
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LV42-7501
Brand :Flowline
THB7,853.98
Each
Units
Sump Float Level Switch Vertical - Polypropylene 15.2m - -20°C +80°C 250V - 10 A 29psi - -
RS Stock No. 889-1330
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DL10-00
Brand :Flowline
THB13,811.77
Each
Units
Ultrasonic Level Transmitter Vertical - Polycarbonate 1.2m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS Stock No. 889-1194
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LU27-00
Brand :Flowline
THB21,317.82
Each
Units
Ultrasonic Level Transmitter Vertical - Polycarbonate 3m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS Stock No. 124-0110
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DL10-01
Brand :Flowline
THB13,363.12
Each
Units
Ultrasonic Level Transmitter Vertical - ABS, PC 1.2m - -35°C +60°C - 24V 20 mA 2bar FKM -
RS Stock No. 889-1393
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DX10-00-8FT
Brand :Flowline
THB12,910.36
Each
Units
Ultrasonic Level Sensor Vertical - Polycarbonate 1.2m - -35°C +60°C - 24V 15 (Nominal) mA 30psi Viton -
RS Stock No. 889-1390
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DX10-10
Brand :Flowline
THB12,949.73
Each
Units
Ultrasonic Level Sensor Vertical - Polycarbonate 1.2m - -35°C +60°C - 24V 15 (Nominal) mA 30psi Viton -
RS Stock No. 889-1273
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LV41-7501
Brand :Flowline
THB3,785.99
Each
Units
Sump Float Level Switch Vertical - Polypropylene 15.2m - 0°C +50°C 250V - 10 A 14.5psi - -
RS Stock No. 889-1352
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.DL14-10
Brand :Flowline
THB16,138.30
Each
Units
Multi Function Ultrasonic Transmitter Vertical Relay Polycarbonate 1.2m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS Stock No. 124-0138
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LV10-1301
Brand :Flowline
THB5,253.23
Each
Units
Buoyancy Level Switch Vertical NO/NC PP 3m - -40°C +90°C - - - 2bar - 250 mA
RS Stock No. 137-2039
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LR11-5421-01
Brand :Flowline
THB122,987.89
Each
Units
Pulse Radar Liquid Level Transmitter Vertical HART 7, 2 Wire, 4 to 20 mA Stainless Steel 316L - - -40°C +130°C - 26.4V 20 mA 3bar Silicone 22.5 mA
RS Stock No. 137-2046
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.US06-0003-01
Brand :Flowline
THB59,202.44
Each
Units
Reflective Ultrasonic Liquid Level Transmitter Horizontal, Vertical HART 7, 2 Wire, 4 to 20 mA Aluminium - - -40°C +80°C - 28V 20 mA 2bar - -
RS Stock No. 889-1236
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LU29-41
Brand :Flowline
THB35,632.25
Each
Units
Ultrasonic Level Transmitter Vertical - Polycarbonate 4.6m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS Stock No. 137-2040
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LR16-5021-20-01
Brand :Flowline
THB127,265.10
Each
Units
Pulse Radar Liquid Level Transmitter Vertical HART 7, 2 Wire, 4 to 20 mA Stainless Steel 316L - - -40°C +150°C - 26.4V 20 mA 10bar Silicone 22.5 mA
RS Stock No. 124-0128
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LU83-5101
Brand :Flowline
THB29,685.45
Each
Units
Ultrasonic Level Transmitter Vertical - PC - - -40°C +71°C - 28V 20 mA 2bar FKM -
RS Stock No. 124-0135
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LR20-0310-30
Brand :Flowline
THB103,723.51
Each
Units
Pulse Radar Level Transmitter Flange Mount - Aluminium - - -40°C +150°C - 26V 20 mA 5bar Silicone 22.5 mA