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
New
RS Stock No. 206-7059
Mfr. Part No.CR - 222 22G
BrandVega
TWD21,851.00
Each
units
2 Wall Mount 27V 100 → 230 V 162mm - - - - - - - - Voltage
RS Stock No. 135-6327
Mfr. Part No.1SVR730850R0200
BrandABB
TWD3,915.00
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. 386-8556
Mfr. Part No.202995/00-91/000
BrandJumo
TWD10,276.00
Each
units
3 - - - 66mm - - - -10°C +60°C - - - -
RS Stock No. 144-0875
Mfr. Part No.K7L-UDPB
BrandOmron
TWD16,581.00
Each
units
1 Plug-In 24V dc 12 → 24 V dc 12.8mm 28.8mm 46mm - -10°C +55°C - - - Voltage
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. 135-6331
Mfr. Part No.1SVR740850R0100
BrandABB
TWD3,990.00
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. 135-6330
Mfr. Part No.1SVR740850R2200
BrandABB
TWD4,131.00
Each
units
1 DIN Rail Mount - 110 → 130 V ac, 220 → 240 V ac 113.4mm 22.5mm 113.4mm - -25°C +60°C 8.5 (220 → 240 V ac) mA, 20 (110 → 130 V ac) mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 892-9760
Mfr. Part No.3491L1P7I1
TWD25,750.00
Each
units
1 Panel Mount 230/115Vac selectable 115 V ac, 230 V ac 144.8mm 74.7mm 173mm - -40°C +55°C 4 → 20 mA, 200 (Fuse) mA ATEX IP40 Current, Voltage
RS Stock No. 889-1545
Mfr. Part No.LI55-1211
BrandFlowline
TWD27,472.00
Each
units
1 DIN Rail Mount, Panel Mount - 85 → 265 V ac 119mm 62mm 136mm - -40°C +65°C 3 A - IP65 Sensor
RS Stock No. 859-2948
Mfr. Part No.CLP2EA1CM24
TWD8,010.00
Each
units
- - - - - - - - -20°C +50°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. 124-0114
Mfr. Part No.LI40-1001
BrandFlowline
TWD7,457.00
Each
units
1 Panel Mount - - 85.5mm 78.6mm 17mm - -20°C +60°C - - IP65 Sensor
RS Stock No. 135-6334
Mfr. Part No.1SVR740850R0300
BrandABB
TWD5,884.00
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. 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. 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. 348-7933
Mfr. Part No.MXL-10.230/RS
TWD4,087.00
Each
units
2 DIN Rail Mount 12V ac 24 V ac, 230 V ac 104mm 22.5mm 80mm - -20°C +55°C - - - -
RS Stock No. 804-3945
Mfr. Part No.7ML5050-0AA11-1DA0
BrandSiemens
TWD43,284.00
Each
units
2 Panel Mount - 10 → 32 V dc, 100 → 230 V ac 190mm 144mm 155mm - -20°C +50°C - - - -
RS Stock No. 446-2654
Mfr. Part No.EFLC3 230VAC 50/60HZ
TWD3,822.00
Each
units
2 DIN Rail Mount 8V ac 230 V ac 85mm 70mm 63.5mm - -20°C +60°C - - - -
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
RS Stock No. 892-9766
Mfr. Part No.3491L1P6I1
TWD23,749.00
Each
units
1 Wall Mount 230/115Vac selectable 115 V ac, 230 V ac 213mm 185mm 84mm - -40°C +55°C 4 → 20 mA, 200 (Fuse) mA ATEX IP65 Current, Voltage