• Capteur de niveau
WL430-023

Capteur de niveau

pour station de pompage des eaux usées


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.

Features

  • 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

Applications

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)
Options
Order NO.  Order Length
WL430CAB*  Extra Sensor Cable, Per Foot (up to 500 ft)
* Add two weeks to shipping time with this option.

 

Electrical
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 PolarityProtected
Warm-Up < 10 mS
Power Supply Effect ± 0.002% full scale output per V input
EMI/RFI Internal Filtering
Lightning ProtectedMOV and dual gas discharge tube; life lightning protection warranty
Short Circuit Protected Up to 40 VDC
Performance
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
Mechanical
Pressure Ranges 10 psi (23 ft) or 15 psi (34 ft)
Proof Pressure 2x full scale
Burst Pressure5x full scale
Materials316L stainless steel plus cable
Pressure Port Flush mount per outline
Electrical Connector½ 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