Level Sensors

pLevel 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. /p h2Level Sensor Types/h2 pThe 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:/p h2Capacitive level switches/h2 ulliCapacitive 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./li/ul h2Vibrating level probes/h2 ulliVibrating 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./li/ul h2Conductive level switches/h2 ulliConductive 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./li/ul h2Ultrasonic level sensors/h2 ulliUltrasonic 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./li/ul

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Description Price Device Type Mounting Type Switch Output Body Material Cable Length Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating Hazardous Area Certification
New
RS Stock No. 193-6790
Mfr. Part No.LLG210D3L24-003-D
HK$2,124.32
Each
units
Liquid Level Switch Threaded Mount NPN Stainless Steel 316L - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA -
RS Stock No. 182-5619
Mfr. Part No.PS69.ARBXXCHXA2XXX
BrandVega
HK$27,929.98
Each
units
Level Sensor Slip on Flange or Bracket 2 Wire, 4 to 20 mA Coated Aluminium - -40°C +80°C 253V 35V 22 mA 2bar - 4 → 20 mA -
RS Stock No. 794-3389
Mfr. Part No.LFP0500-A4NMB
BrandSick
HK$3,981.98
Each
units
Guided Radar Vertical 0-10V, NPN, 2 PNP, 4-20mA PBT - -20°C +100°C - - 100 mA 10bar PTFE - -
RS Stock No. 144-9330
Mfr. Part No.84800013
BrandXylem
HK$6,261.60
Each
units
10 Sensor Probe 1.5 m Bracket Mounted - - - - - - - - - - - -
RS Stock No. 859-2945
Mfr. Part No.CLP2EA1C115
HK$1,831.18
Each
units
Conductive Plug DPDT Relay NORYL PPO 100m -20°C +50°C - - 8 A - - - -
RS Stock No. 889-1166
Mfr. Part No.LU10-1405
BrandFlowline
HK$2,768.92
Each
units
Ultrasonic Level Switch Cable - Polypropylene 3m -40°C +80°C - 36V - 150psi Viton 500 mA -
RS Stock No. 889-1208
Mfr. Part No.LU27-40
BrandFlowline
HK$5,392.10
Each
units
Ultrasonic Level Transmitter Vertical - Polycarbonate 4.6m -35°C +60°C - 24V 20 mA 30psi Viton - -
New
RS Stock No. 189-2704
Mfr. Part No.LBFH-21.010.A03020.1.0003.0
BrandBaumer
HK$1,427.97
Each
units
Level Switch Bottom Mount, Side Mount, Top Mount PNP Stainless Steel - -40°C +85°C - 36V 40 mA 10bar - 40 mA ATEX
New
RS Stock No. 193-6794
Mfr. Part No.LLG710D3L24-003-D
HK$2,124.32
Each
units
Liquid Level Switch Threaded Mount NPN Stainless Steel 316L - -40°C +125°C - 30V 7.5 mA 100bar - 7.5 mA -
RS Stock No. 804-4124
Mfr. Part No.7ML1100-0BA20
BrandSiemens
HK$6,828.20
Each
units
Vibrating Rod - - - - -40 °C, -20 °C +60 °C, +73 °C - - - - - - -
New
RS Stock No. 193-6798
Mfr. Part No.POS287412
HK$2,474.35
Each
units
Liquid Level Switch Threaded Mount NPN Stainless Steel 304 - -25°C +140°C - 30V 25 mA 80bar - 25 mA -
New
RS Stock No. 191-9499
BrandRS PRO
HK$135.91
Each
units
Float Vertical NO/NC Nylon - -20°C +75°C 240V 120V 600 mA - Nitrile 600 mA -
RS Stock No. 794-3395
Mfr. Part No.LFP0500-G1NMB
BrandSick
HK$8,521.93
Each
units
Sensor Vertical 0-10 V, 4-20 mA Stainless Steel 500mm -20°C +150°C - - 100 mA 16bar PEEK - -
RS Stock No. 144-9332
Mfr. Part No.84800021
BrandXylem
HK$6,818.97
Each
units
10 Sensor Probe 2.5 m Bracket Mounted - - - - - - - - - - - -
RS Stock No. 892-9356
Mfr. Part No.2130LA2MS1NNBA00001NA
BrandRosemount
HK$4,270.45
Each
units
Fork Level Switch Side or Top Mount Direct Load Aluminium - -40°C +180°C - - 500 mA 100bar - - -
RS Stock No. 616-2996
Mfr. Part No.208997
HK$327.88
Each
units
Electro Optic Horizontal, Vertical - Polyethersulfone 150mm -40°C +125°C - - 18 mA 250psi - - -
RS Stock No. 377-9793
Mfr. Part No.VC5510NNOP
HK$434.06
Each
units
Capacitance - NPN ABS, Polycarbonate 1.5m 0°C +50°C - 30V 100 mA - - - -
RS Stock No. 906-8147
Mfr. Part No.155660
HK$655.06
Each
units
Level Switch Horizontal SPST Zinc Alloy 24in -40°C +121°C - - - 100psi - - -
RS Stock No. 387-0341
Mfr. Part No.CAP98XPXD
BrandVega
HK$3,331.14
Each
units
Capacitance Horizontal, Vertical Relay Polypropylene - -30°C +80°C - - 1 A dc, 3 A ac - - - -
RS Stock No. 183-7325
Mfr. Part No.GRF18S-E234LV
BrandSick
HK$823.90
Each
units
Optical Point Level Switch G1/2 Thread NPN Stainless Steel - -25°C +55°C - 30V - 16bar - 30 mA -