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. 144-9334
Mfr. Part No.84800054
BrandXylem
kr 8 766,31
Each
Units
10 Panel Mounted 10V ac 240 V ac 96mm 96mm 130mm - -10°C +60°C 800 μA - - -
RS Stock No. 889-1532
Mfr. Part No.LI55-1011
BrandFlowline
kr 6 714,02
Each
Units
- - - 85 → 265 V ac - - - - -40°C +60°C 3 A - - -
RS Stock No. 348-7927
Mfr. Part No.MXL-10.115/RS
kr 1 005,09
Each
Units
2 DIN Rail Mount 12V ac 115 V ac, 24 V ac 104mm 22.5mm 80mm - -20°C +55°C - - - -
RS Stock No. 510-9304
Mfr. Part No.61F-GPN-BT 24VDC
BrandOmron
kr 1 503,00
Each
Units
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°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. 135-6325
Mfr. Part No.1SVR730850R0100
BrandABB
kr 960,11
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. 135-6334
Mfr. Part No.1SVR740850R0300
BrandABB
kr 1 462,60
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. 768-2075
Mfr. Part No.MET381.CX
BrandVega
kr 6 706,80
Each
Units
- - - - - - - - -20°C +60°C - ATEX - -
RS Stock No. 240-9005
Mfr. Part No.MK9151.11 2-450kOhm DC24V
BrandDold
kr 1 303,18
Each
Units
1 DIN Rail Mount 10V ac 24 V dc 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS Stock No. 746-7488
Mfr. Part No.1SVR450050R0000
BrandABB
kr 1 063,39
Each
Units
- DIN Rail Mount, Screw Mount, Snap-On 20V ac 110 → 130 V ac 109.5mm 45mm 78mm - - - - - - -
RS Stock No. 818-4276
Mfr. Part No.61FGPN224ACCE
BrandOmron
kr 999,50
Each
Units
1 DIN Rail Mount 8V ac 24 V ac 49.4mm 38mm 80mm - -10°C +55°C - - - -
RS Stock No. 446-2654
Mfr. Part No.EFLC3 230VAC 50/60HZ
kr 962,40
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
kr 10 935,08
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. 144-0875
Mfr. Part No.K7L-UDPB
BrandOmron
kr 6 835,00
Each
Units
1 Plug-In 24V dc 12 → 24 V dc 12.8mm 28.8mm 46mm - -10°C +55°C - - - Voltage
RS Stock No. 361-1596
Mfr. Part No.45225 230VAC
kr 614,85
Each
Units
1 DIN Rail Mount 17V ac 230 V ac 78mm 45mm 99mm - -20°C +60°C - - - -
RS Stock No. 746-7447
Mfr. Part No.1SVR550851R9500
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. 884-2451
Mfr. Part No.4411AD1
BrandGIC
kr 509,51
Each
Units
- - - 110 V ac - - - 0 → 10s -10°C +60°C - - - -
RS Stock No. 892-9340
Mfr. Part No.3493L1P7I1
BrandRosemount
kr 12 836,30
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 - IP40 Current, Voltage
RS Stock No. 892-9766
Mfr. Part No.3491L1P6I1
BrandRosemount
kr 7 171,12
Each
Units
1 Wall Mount 230/115Vac selectable 115 V ac, 230 V ac 213mm 185mm 84mm - -40°C +55°C 200 (Fuse) mA, 4 → 20 mA ATEX IP65 Current, Voltage
RS Stock No. 135-6328
Mfr. Part No.1SVR730850R0300
BrandABB
kr 1 381,84
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
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