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庫存編號 889-1576
製造零件編號LI90-1001
BrandFlowline
HK$9,526.55
單位
4 DIN Rail Mount, Panel Mount - 10 30 V dc 96mm 96mm - - 0°C +50°C 3 A - IP65 Sensor
RS庫存編號 510-9304
製造零件編號61F-GPN-BT 24VDC
BrandOmron
HK$1,154.30
單位
- DIN Rail Mount 5V ac 24 V dc 84mm 38mm 49.4mm - -10°C +55°C - - - -
RS庫存編號 746-7466
製造零件編號1SVR430851R1300
BrandABB
HK$1,020.00
單位
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 220 240 V ac 109.5mm 22.5mm 78mm - - - - - - -
RS庫存編號 240-9011
製造零件編號MK9151.11 2-450kOhm AC220-240V
BrandDold
HK$1,150.29
單位
1 DIN Rail Mount 10V ac 220 → 240 V ac 82mm 22.5mm 99mm - -20°C +60°C - - - -
RS庫存編號 135-6323
製造零件編號1SVR730850R2100
BrandABB
HK$961.76
單位
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庫存編號 144-0875
製造零件編號K7L-UDPB
BrandOmron
HK$4,148.14
單位
1 Plug-In 24V dc 12 24 V dc 12.8mm 28.8mm 46mm - -10°C +55°C - - - Voltage
RS庫存編號 746-7435
製造零件編號1SVR550855R9500
BrandABB
HK$710.31
單位
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 24 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS庫存編號 884-2455
製造零件編號4421AD1
BrandGIC
HK$413.46
單位
- - - 240 V ac - - - 0 → 10s -10°C +60°C - - - -
RS庫存編號 144-0874
製造零件編號K7L-AT50DPB
BrandOmron
HK$3,445.73
單位
1 Plug-In 24V dc 12 24 V dc 12.8mm 28.8mm 46mm - -10°C +55°C - - - Voltage
RS庫存編號 746-7431
製造零件編號1SVR550851R9400
BrandABB
HK$714.20
單位
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 220 240 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS庫存編號 446-2654
製造零件編號EFLC3 230VAC 50/60HZ
HK$972.51
單位
2 DIN Rail Mount 8V ac 230 V ac 85mm 70mm 63.5mm - -20°C +60°C - - - -
RS庫存編號 889-1532
製造零件編號LI55-1011
BrandFlowline
HK$5,815.41
單位
- - - 85 265 V ac - - - - -40°C +60°C 3 A - - -
RS庫存編號 859-2945
製造零件編號CLP2EA1C115
HK$2,287.43
單位
- - - - - - - - -20°C +50°C - - - -
RS庫存編號 804-3954
製造零件編號7ML5050-0AA21-1DA0
BrandSiemens
HK$13,098.80
單位
2 Panel Mount - 10 32 V dc 190mm 144mm 155mm - -20°C +50°C - - - -
RS庫存編號 135-6334
製造零件編號1SVR740850R0300
BrandABB
HK$1,496.92
單位
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庫存編號 884-2464
製造零件編號4431AD1
BrandGIC
HK$484.60
單位
- - - 400 V ac - - - 0 → 10s -10°C +60°C - - - -
RS庫存編號 746-7444
製造零件編號1SVR550850R9500
BrandABB
HK$710.31
單位
- DIN Rail Mount, Screw Mount, Snap-On 30V ac 110 130 V ac 88.5mm 22.5mm 78mm - - - - - - -
RS庫存編號 858-2686
製造零件編號CLP2EA1C230
HK$2,287.43
單位
- - - - - - - - -20°C +50°C - - - -
RS庫存編號 135-6324
製造零件編號1SVR730850R2200
BrandABB
HK$996.08
單位
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庫存編號 465-0621
製造零件編號MK9151N.12 2-450kOHM AC230V 0-20s
BrandDold
HK$1,284.25
單位
1 DIN Rail Mount 10V ac 230 V ac 90mm 22.5mm 98mm - -20°C +60°C - - - -