S-20

S-20

What This Data Means — Quick Client Selection

  • For aggressive & high-pressure duty:
     S-20 handles higher pressure ranges than A-10 and offers optional flush diaphragm for slurry, viscous or sticky fluids. 
  • High accuracy zone:
     ±0.25% FS (and optional ±0.1%) makes it suitable for critical process feedback, batching, feed control & pump protection logic. 
  • Survives vibration & electrical noise:
     EMI/RFI immunity ensures stable readings in VFD panels, steel mills, compressors & power plants. 
  • Hazardous area ready (optional):
     ATEX/SIL approval makes it usable in O&G, fuel farms, refineries, solvent skids. 
  • Welded capsule = zero leakage risk:
     Stainless welded sensor without elastomer seals → safe for hydraulic oil, nitrogen, refrigerant gases, ammonia, steam condensate. 
  • Suitable for steam + high temp lines:
     With siphon or impulse loop, it fits boiler feed, condensate return & saturated steam pipelines.
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Description

WIKA S-20 is a premium, rugged, and precision-class pressure transmitter designed for demanding industrial plants. Engineered for stable long-term drift performance, high EMI protection, and corrosive + hydraulic media compatibility, it is widely used in refineries, steel plants, boiler feed systems, nitrogen banks, compressed air networks, skid automation, and PLC/SCADA-based utility monitoring.

WIKA S-20 — Key Technical Data & Selection Parameters

Parameter Specification / Details
Measuring Range 0…0.1 bar to 0…1600 bar
Accuracy ±0.25% FS (option ±0.1% FS)
Output Signal Options 4–20 mA, 0–10 V, 1–5 V, Modbus RS485
Sensor Technology Stainless steel measuring cell, fully welded, no O-ring
Media Compatibility Water, oil, gas, refrigerants, steam, corrosive media (depending on diaphragm)
Process Connection G¼, G½, ¼ NPT, ½ NPT, flush diaphragm optional
Response Time < 5 ms
Overpressure Strength 2× to 4× FS (range dependent)
Ingress Protection IP65 / IP67 / IP69K
Electrical Connections M12x1, DIN connector, cable outlet
Temperature Rating (Media) –40 °C to +125 °C
Approvals CE, SIL, ATEX optional (for explosive zones)
EMI / RFI Immunity Industrial class shielding against VFD & motor noise
Application Class Heavy-duty high stability + critical industrial accuracy

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