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. 446-2632
Mfr. Part No.MCU901WX-A
TWD32,334.00
Each
units
2 Wall Mount 230/115Vac selectable 15 → 30 V dc, 98 → 132 V ac, 198 → 254 V ac 185mm 213mm 84mm - -40°C +55°C - - - -
RS Stock No. 111-3527
Mfr. Part No.K7L-AT50B
BrandOmron
TWD7,885.00
Each
units
1 DIN Rail Mount - 12 → 24 V dc 12.8mm 46mm 28.8mm - -10°C +55°C - - - -
RS Stock No. 510-9297
Mfr. Part No.61F-GPN-BC 24VDC
BrandOmron
TWD13,780.00
Each
units
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 889-1532
Mfr. Part No.LI55-1011
BrandFlowline
TWD22,544.00
Each
units
- - - 85 → 265 V ac - - - - -40°C +60°C 3 A - - -
RS Stock No. 331-7547
Mfr. Part No.S1384
BrandAssemtech
TWD1,198.00
Each
units
1 - - 12 V dc 64mm 58mm 35mm - -10°C +50°C - - - -
RS Stock No. 240-9011
Mfr. Part No.MK9151.11 2-450kOhm AC220-240V
BrandDold
TWD3,060.00
Each
units
1 DIN Rail Mount 10V ac 220 → 240 V ac 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS Stock No. 303-0414
Mfr. Part No.61FGPN8230AC
BrandOmron
TWD2,863.00
Each
units
1 DIN Rail Mount 8V ac 230 V ac 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 446-2654
Mfr. Part No.EFLC3 230VAC 50/60HZ
TWD3,887.00
Each
units
2 DIN Rail Mount 8V ac 230 V ac 85mm 70mm 63.5mm - -20°C +60°C - - - -
RS Stock No. 884-2464
Mfr. Part No.4431AD1
BrandGIC
TWD1,964.00
Each
units
- - - 400 V ac - - - 0 → 10s -10°C +60°C - - - -
RS Stock No. 746-7444
Mfr. Part No.1SVR550850R9500
BrandABB
TWD2,797.00
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 110 → 130 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 858-2686
Mfr. Part No.CLP2EA1C230
TWD7,730.00
Each
units
- - - - - - - - -20°C +50°C - - - -
RS Stock No. 889-1536
Mfr. Part No.LI55-1201
BrandFlowline
TWD22,640.00
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. 135-6327
Mfr. Part No.1SVR730850R0200
BrandABB
TWD3,861.00
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. 746-7488
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. 818-4272
Mfr. Part No.61FGPN2230AC
BrandOmron
TWD2,951.00
Each
units
1 DIN Rail Mount 8V ac 230 V ac 49.4mm 38mm 80mm - -10°C +55°C - - - -
RS Stock No. 884-2455
Mfr. Part No.4421AD1
BrandGIC
TWD1,373.00
Each
units
- - - 240 V ac - - - 0 → 10s -10°C +60°C - - - -
RS Stock No. 465-0766
Mfr. Part No.MK9151N.12 2-450kOHM DC24V 0.2-20s
BrandDold
TWD6,054.00
Each
units
1 DIN Rail Mount 10V ac 24 V dc 90mm 22.5mm 98mm - -20°C +60°C - - - -
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. 201-0775
Mfr. Part No.CLD1EA1CM24
TWD6,086.00
Each
units
1 DIN-rail 5V 24 V 100000mm - - - - - - - - Analog
RS Stock No. 363-4117
Mfr. Part No.B8LCR 110VAC
TWD2,296.00
Each
units
1 DIN Rail Mount 17V ac 110 V ac 92mm 40mm 80mm - -20°C +60°C - - - -