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. 780-0298
Mfr. Part No.SM20
BrandCynergy3
kr 755,63
Each
Units
- - - - - - - - 0°C +50°C - - - -
RS Stock No. 884-2455
Mfr. Part No.4421AD1
BrandGIC
kr 524,79
Each
Units
- - - 240 V ac - - - 0 → 10s -10°C +60°C - - - -
RS Stock No. 858-2686
Mfr. Part No.CLP2EA1C230
kr 1 930,21
Each
Units
- - - - - - - - -20°C +50°C - - - -
RS Stock No. 804-3954
Mfr. Part No.7ML5050-0AA21-1DA0
BrandSiemens
kr 15 742,13
Each
Units
2 Panel Mount - 10 32 V dc 190mm 144mm 155mm - -20°C +50°C - - - -
RS Stock No. 303-0414
Mfr. Part No.61FGPN8230AC
BrandOmron
kr 794,50
Each
Units
1 DIN Rail Mount 8V ac 230 V ac 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 124-0115
Mfr. Part No.LI99-1001
BrandFlowline
kr 485,57
Each
Units
- Plug-In - - - - - - - - - - - -
RS Stock No. 889-1545
Mfr. Part No.LI55-1211
BrandFlowline
kr 7 473,12
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. 386-8556
Mfr. Part No.202995/00-91/000
BrandJumo
kr 2 062,00
Each
Units
3 - - - 66mm - - - -10°C +60°C - - - -
RS Stock No. 240-9011
Mfr. Part No.MK9151.11 2-450kOhm AC220-240V
BrandDold
kr 1 303,18
Each
Units
1 DIN Rail Mount 10V ac 220 → 240 V ac 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS Stock No. 892-9760
Mfr. Part No.3491L1P7I1
BrandRosemount
kr 7 888,23
Each
Units
1 Panel Mount 230/115Vac selectable 115 V ac, 230 V ac 144.8mm 74.7mm 173mm - -40°C +55°C 200 (Fuse) mA, 4 → 20 mA ATEX IP40 Current, Voltage
RS Stock No. 135-6329
Mfr. Part No.1SVR740850R2100
BrandABB
kr 1 031,90
Each
Units
1 DIN Rail Mount - 110 130 V ac, 220 240 V ac 113.4mm 22.5mm 113.4mm - -25°C +60°C 20 (110 130 V ac) mA, 8.5 (220 240 V ac) mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 348-7933
Mfr. Part No.MXL-10.230/RS
kr 1 005,09
Each
Units
2 DIN Rail Mount 12V ac 230 V ac, 24 V ac 104mm 22.5mm 80mm - -20°C +55°C - - - -
RS Stock No. 746-7431
Mfr. Part No.1SVR550851R9400
BrandABB
kr 659,52
Each
Units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 220 240 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 889-1548
Mfr. Part No.LI55-1401
BrandFlowline
kr 7 308,35
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. 361-1596
Mfr. Part No.45225 230VAC
kr 675,83
Each
Units
1 DIN Rail Mount 17V ac 230 V ac 78mm 45mm 99mm - -20°C +60°C - - - -
RS Stock No. 135-6323
Mfr. Part No.1SVR730850R2100
BrandABB
kr 960,11
Each
Units
1 DIN Rail Mount - 110 130 V ac, 220 240 V ac 113.4mm 22.5mm 113.4mm - -25°C +60°C 20 (110 130 V ac) mA, 8.5 (220 240 V ac) mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 331-7547
Mfr. Part No.S1384
BrandAssemtech
kr 324,19
Each
Units
1 - - 12 V dc 64mm 58mm 35mm - -10°C +50°C - - - -
RS Stock No. 446-2632
Mfr. Part No.MCU901WX-A
BrandMobrey
kr 8 963,79
Each
Units
2 Wall Mount 230/115Vac selectable 15 30 V dc, 198 254 V ac, 98 132 V ac 185mm 213mm 84mm - -40°C +55°C - - - -
RS Stock No. 135-6330
Mfr. Part No.1SVR740850R2200
BrandABB
kr 1 067,79
Each
Units
1 DIN Rail Mount - 110 130 V ac, 220 240 V ac 113.4mm 22.5mm 113.4mm - -25°C +60°C 20 (110 130 V ac) mA, 8.5 (220 240 V ac) mA - IP20 (Terminal), IP50 (Housing) Voltage
RS Stock No. 510-9304
Mfr. Part No.61F-GPN-BT 24VDC
BrandOmron
kr 1 451,00
Each
Units
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°C - - - -
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