Level Controllers

Level controllers are automated units for measuring the level of fluid in a contained area. They're used in systems that prevent liquid levels becoming excessively high or low.  


How do level controllers work?

Firstly, a sensor detects the fluid level in either a container or a natural setting, such as a lake. It then sends a signal – normally either pneumatic or electrical – to a control valve, solenoid, or other external control device. If the fluid level needs to be adjusted, the control valve will open or close according to the information it has received.


Types of level controllers

The two main types of level controllers are pneumatic and electric. Your choice of controller will depend on factors such as the type and density of fluid being measured, as well as the pressure of the container.

  • Pneumatic level controllers are preferred when the material is hazardous, or electricity is unavailable. 
  • Electric level controllers are useful in pressurised tanks and are generally very accurate and reliable. 

Level controllers measure either exact volumes or when fluid drops above or below a fixed point.



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Description Price Number of Inputs Mounting Style Probe Voltage Supply Voltage Overall Length Overall Width Overall Depth Response Time Minimum Operating Temperature Maximum Operating Temperature Current Rating Hazardous Area Certification IP Rating Input Type
RS Stock No. 780-0292
Mfr. Part No.SB20
BrandCynergy3
TWD3,573.00
Each
units
1, 2, 3 DIN Rail Mount - 240 V ac, 415 V ac - - - - 0°C +50°C - - - -
RS Stock No. 363-4117
Mfr. Part No.B8LCR 110VAC
TWD2,264.00
Each
units
1 DIN Rail Mount 17V ac 110 V ac 92mm 40mm 80mm - -20°C +60°C - - - -
RS Stock No. 746-7435
Mfr. Part No.1SVR550855R9500
BrandABB
TWD2,792.00
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 24 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 746-7447
Mfr. Part No.1SVR550851R9500
BrandABB
TWD2,792.00
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 220 → 240 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 361-1596
Mfr. Part No.45225 230VAC
TWD2,444.00
Each
units
1 DIN Rail Mount 17V ac 230 V ac 78mm 45mm 99mm - -20°C +60°C - - - -
RS Stock No. 361-1603
Mfr. Part No.B8LCR 230VAC
TWD2,264.00
Each
units
1 - 17V ac 230 V ac 92mm 40mm 80mm - -20°C +60°C - - - -
RS Stock No. 746-7488
Mfr. Part No.1SVR450050R0000
BrandABB
TWD4,330.00
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 20V ac 110 → 130 V ac 109.5mm 45mm 78mm - - - - - - -
RS Stock No. 135-6333
Mfr. Part No.1SVR740850R0200
BrandABB
TWD4,131.00
Each
units
1 DIN Rail Mount - 24 → 240 V ac/dc 113.4mm 22.5mm 113.4mm - -25°C +60°C 11 mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 240-9011
Mfr. Part No.MK9151.11 2-450kOhm AC220-240V
BrandDold
TWD2,885.00
Each
units
1 DIN Rail Mount 10V ac 220 → 240 V ac 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS Stock No. 859-2945
Mfr. Part No.CLP2EA1C115
TWD8,010.00
Each
units
- - - - - - - - -20°C +50°C - - - -
RS Stock No. 144-9335
Mfr. Part No.84800056
BrandXylem
TWD32,067.00
Each
units
10 Panel Mounted 10V ac 24 V dc 96mm 96mm 130mm - -10°C +60°C 800 μA - - -
RS Stock No. 768-2075
Mfr. Part No.MET381.CX
BrandVega
TWD24,314.00
Each
units
- - - - - - - - -20°C +60°C - ATEX - -
RS Stock No. 135-6328
Mfr. Part No.1SVR730850R0300
BrandABB
TWD5,424.00
Each
units
1 DIN Rail Mount - 24 → 240 V ac/dc 113.4mm 22.5mm 113.4mm - -25°C +60°C 11 mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 621-1571
TWD2,663.00
Each
units
2 Panel Mount 17V ac 115 V ac, 230 V ac 75mm 48mm 48mm - -20°C +60°C - - - -
New
RS Stock No. 206-7062
Mfr. Part No.CR - 222 22A
BrandVega
TWD28,205.00
Each
units
2 Wall Mount 27V 100 → 230 V 200mm - - - - - - - - Voltage
RS Stock No. 144-0874
Mfr. Part No.K7L-AT50DPB
BrandOmron
TWD13,215.00
Each
units
1 Plug-In 24V dc 12 → 24 V dc 12.8mm 28.8mm 46mm - -10°C +55°C - - - Voltage
RS Stock No. 746-7469
Mfr. Part No.1SVR430851R9200
BrandABB
TWD3,170.00
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 24 V ac 109.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 889-1576
Mfr. Part No.LI90-1001
BrandFlowline
TWD37,446.00
Each
units
4 DIN Rail Mount, Panel Mount - 10 → 30 V dc 96mm 96mm - - 0°C +50°C 3 A - IP65 Sensor
New
RS Stock No. 206-7060
Mfr. Part No.CR - 222 22E
BrandVega
TWD22,195.00
Each
units
1 Wall Mount 27V 100 → 230 V 200mm - - - - - - - - Voltage
New
RS Stock No. 201-0776
Mfr. Part No.CLD2EB1BU24
TWD2,960.00
Each
units
2 DIN-rail 5V 24 V 100000mm - - - - - - - - Analog