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Level sensor for wastewater pumping station Environment

Level sensor for wastewater pumping station

Brand:Global Water
Product Code:WL-430

Need more Info? (514) 354-2511 - 1-800-463-4363


Global Water’s WL430 Sewage Lift Station Level Sensor is ideal for measuring level in high solids environments. It is based on over 30 years of design and field service experience. The WL430 has a standard 4-20 mA output for interface with most datalogging and remote monitoring equipment. “Steel Cage” Design The WL430 consists of a submersible pressure sensing element encased in a 316L stainless steel housing. The unit’s “steel cage” design offers the highest reliability in level measurement for severe high solids environments such as sewage, lift stations, storm canals, wet wells, and slurry tanks. The ”steel cage” gives full protection and allows sensing of sewage levels no matter how much debris, mud, or sand builds up.

Barometric Pressure Compensation

The WL430 includes 40 ft of polyurethane shielded and vented cable, and additional cable lengths are available up to 500 ft. The instrument’s unique vented cable system allows for barometric pressure differential compensation (described further on page 6), while the unit is protected from the elements with a Gortex® filter encapsulated tip.

Lightning Strike Protection

The WL430 includes an exclusive lifetime warranty against lightning strikes. The sensor’s electronics are capable of withstanding lightning strikes and meet RCTA/DO 160D for lightning direct effects and surge protection for FAA and MIL-STD test and NASA standard electrical surge requirements. The WL430 is also CSA explosion proof and intrinsically safe if used with a client supplied barrier strip.



  • UL listed
  • Flush clog-free sensor; 316L stainless steel
  • Lifetime warranty against lighting strikes
  • ± 0.5% full scale output static accuracy
  • Vented cable for automatic barometric compensation
  • Double-sealed submersible cable exit
  • CSA explosion proof and intrinsically safe if used with a client supplied barrier strip



Excitation  8 to 38 VDC
Output  4–20 mA DC
Zero Balance  ± 1% full scale output
FSO Setting  ± 1% full scale output
Resolution Infinite  ( ±0.001% full scale output usable)
Response Time  < 5mS
Insulation Resistance  1000 MO @ 50 VDC
Reverse Polarity Protected
Warm-Up  < 10 mS
Power Supply  Effect ± 0.002% full scale output per V input
EMI/RFI  Internal Filtering
Lightning Protected MOV and dual gas discharge tube; life lightning protection warranty
Short Circuit  Protected Up to 40 VDC
Static Accuracy  ± 0.5% full scale output ( BFSL, RSS) (combined effects of non-linearity, hysteresis & repeatability)
Repeatability  ± 0.1% full scale output
Temperature Effects ± 1.5% full scale output over comp range (combined effects of Zero & FSO with reference at 70°F (21.1°C)
Long Term Stability  ± 0.25% full scale output per year
Pressure Ranges  10 psi (23 ft) or 15 psi (34 ft)
Proof Pressure  2x full scale
Burst Pressure 5x full scale
Materials 316L stainless steel plus cable
Pressure Port  Flush mount per outline
Electrical Connector ½ inch NPT male submersible conduit fitting with 40' of polyurethane cable
Compensated  20 to 170°F (-6 to 76°C)
Operating Temp Range  0 to 200°F (-17 to 93°C)
Storage Temp Range -20 to 250°F (-28 to 121°C)
Dimensions  3 inch dia. x 6 inch long (7.6 cm dia. x 15 cm long)
Weight  Nominal 20 oz (.57 kg)Temp Range



Ideal for severe high solids environments such as sewage, lift stations, storm canals, wet wells, slurry tanks, and more.


Ordering & Options

Sewage Lift Station Level Sensor
Order NO. Order Length
WL430-023  23ft (7m)
WL430-034   34ft (10m)
Order NO.  Order Length
WL430CAB*  Extra Sensor Cable, Per Foot (up to 500 ft)
* Add two weeks to shipping time with this option.


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