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. 510-9297
Mfr. Part No.61F-GPN-BC 24VDC
BrandOmron
MYR673.03
Each
units
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 240-9005
Mfr. Part No.MK9151.11 2-450kOhm DC24V
BrandDold
MYR738.85
Each
units
1 DIN Rail Mount 10V ac 24 V dc 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS Stock No. 111-3527
Mfr. Part No.K7L-AT50B
BrandOmron
MYR1,031.30
Each
units
1 DIN Rail Mount - 12 → 24 V dc 12.8mm 46mm 28.8mm - -10°C +55°C - - - -
RS Stock No. 510-9304
Mfr. Part No.61F-GPN-BT 24VDC
BrandOmron
MYR619.19
Each
units
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 303-0414
Mfr. Part No.61FGPN8230AC
BrandOmron
MYR396.12
Each
units
1 DIN Rail Mount 8V ac 230 V ac 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 331-7547
Mfr. Part No.S1384
BrandAssemtech
MYR158.60
Each
units
1 - - 12 V dc 64mm 58mm 35mm - -10°C +50°C - - - -
RS Stock No. 889-1576
Mfr. Part No.LI90-1001
BrandFlowline
MYR5,718.09
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. 818-4272
Mfr. Part No.61FGPN2230AC
BrandOmron
MYR456.97
Each
units
1 DIN Rail Mount 8V ac 230 V ac 49.4mm 38mm 80mm - -10°C +55°C - - - -
RS Stock No. 303-0391
Mfr. Part No.61FGPN8110AC
BrandOmron
MYR302.39
Each
units
1 DIN Rail Mount 8V ac 110 V ac 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS Stock No. 780-0298
Mfr. Part No.SM20
BrandCynergy3
MYR378.50
Each
units
1, 2, 3 DIN Rail Mount - 240 V ac, 415 V ac - - - - 0°C +50°C - - - -
RS Stock No. 892-9340
Mfr. Part No.3493L1P7I1
BrandRosemount
MYR8,762.08
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. 621-1571
MYR353.89
Each
units
2 Panel Mount 17V ac 115 V ac, 230 V ac 75mm 48mm 48mm - -20°C +60°C - - - -
RS Stock No. 858-2686
Mfr. Part No.CLP2EA1C230
MYR1,133.67
Each
units
- - - - - - - - -20°C +50°C - - - -
RS Stock No. 892-9766
Mfr. Part No.3491L1P6I1
BrandRosemount
MYR3,735.39
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. 361-1603
Mfr. Part No.B8LCR 230VAC
MYR305.44
Each
units
1 - 17V ac 230 V ac 92mm 40mm 80mm - -20°C +60°C - - - -
New
RS Stock No. 206-7060
Mfr. Part No.CR - 222 22E
BrandVega
MYR3,550.03
Each
units
1 Wall Mount 27V 100 → 230 V 200mm - - - - - - - - Voltage
New
RS Stock No. 206-7059
Mfr. Part No.CR - 222 22G
BrandVega
MYR3,495.10
Each
units
2 Wall Mount 27V 100 → 230 V 162mm - - - - - - - - Voltage
RS Stock No. 746-7435
Mfr. Part No.1SVR550855R9500
BrandABB
MYR372.74
Each
units
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 24 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS Stock No. 884-2455
Mfr. Part No.4421AD1
BrandGIC
MYR204.51
Each
units
- - - 240 V ac - - - 0 → 10s -10°C +60°C - - - -
RS Stock No. 804-3954
Mfr. Part No.7ML5050-0AA21-1DA0
BrandSiemens
MYR8,818.33
Each
units
2 Panel Mount - 10 → 32 V dc 190mm 144mm 155mm - -20°C +50°C - - - -