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  5. APR3441 Submersible Depth & Level Pressure Transducer

APR3441 Submersible Depth & Level Pressure Transducer

For accurate measurement of the depth and level of liquids in many applications


Key features

  • Piezoresistive sensor technology for excellent stability and repeatability
  • Robust stainless steel construction
  • Pressure ranges available from 0-1 mWG
  • High strength, molded cable for protection against ingress
  • ATEX/IECEx option available (includes M1 for mining applications)
  • DNV GL Approved

About the APR3441 Submersible Depth & Level Pressure Transducer

The APR3441 submersible transmitter has been designed for the accurate measurement of the depth and level of liquids in many applications.

Standard output signal is 4-20 mA two wire with supply range 13-36 Vdc. Electrical connection is via a high strength moulded polyurethane cable with integral tube for excellent trouble-free venting to the surface atmosphere. The standard depth transmitter is fitted with a stainless steel nose cone with radial inlet holes to prevent sludge build-up.

The APR3441 transmitter is suitable for depth and level measurement in boreholes 25 mm diameter or greater. Lightening Protection is available on request.

Applications include borehole level and reservoir level monitoring, water mains pressure measurement in inspection chambers, power level and outlet pressure measurement on submersible pumps.

An optional ATEX and IECEx approved version of this product is available for explosion protection for flammable gases (zone 0), dusts (zone 20) and mining areas (group I M1). The APR3441 is DNV GL approved for marine applications.

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Technical Specifications

Specification Value
Accuracy nlhr ≤ ±0.3 % of span BFSL (Optional higher accuracy version of ≤ ±0.15 % of span BFSL available)
Operating ambient temperature -20 °C – +60 °C (-4 °F to +140 °F)
Output signal 4-20 mA (2 wire) | 0-5 Vdc (4 wire) | 0-10 Vdc (4 wire)
Pressure reference Vented Gauge
Protection of supply voltage Protected against supply voltage reversal up to 50 V
Sensor technology Isolated Piezoresistive Silicon
Standard pressure ranges (psi) 0-3 psi; 0-5 psi; 0-7.5 psi; 0-10 psi; 0-15 psi; 0-30 psi; 0-50 psi; 0-100 psi; 0-200 psi; 0-300 psi (other options available)
Supply voltage 13 -36 VDC | 13 -30 VDC | 13 -30 VDC