DRUCK-Depth and Level Pressure Sensors( Model: PTX/PDCR 1730 Series)

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 The 1730/1740 series has been developed as a general purpose, hydrostatic liquid level sensor, designed to work in low powered, arduous applications, including surface water, ground water and tank level. It is the latest generation of submersible products manufactured over the past 30 years and features high performance, micro-machined silicon technology, packaged in a fully welded 316 stainless steel assembly.

Level pressure sensor application specific features include a Kevlar strain relieved vented cable, internal condensation protection and an IP68 injection moulded cable assembly, which guarantees sensor operation over an extended lifetime.


  • Ranges from 3.5 mH2O to 600 mH2O
  • Accuracy ±0.25%
  • Fully welded 17.5 mm 316 stainless construction
  • Pulse power operation
  • Polyurethane and hydrocarbon resistant cables
  • Full range of installation accessories


The PDCR 1730 transducer (mV output) and PTX 1730 transmitter (4 to 20 mA output) are the latest generation of fully submersible, 316 stainless steel, high performance sensors for measurement of hydrostatic liquid levels. 

Application specific features include a Kevlar® strain relieved vented cable, internal condensation protection and an IP68 injection moulded cable assembly, which ensures sensor operation over an extended lifetime.


Pressure Measurement

Operating Pressure Ranges PDCR 1730 (mV)/PTX 1730 (mA) 5, 10, 15, 20, 30, 50, 75, 100, 150, 300, 500, 900 psi gauge
Overpressure The operating FS pressure range can be exceeded by the following multiples with negligible effect on calibration. 

  • 4 x for 5 psi range
  •  2 x for ranges 10 to 900 psi
Pressure Containment
  • 10 x for 5 psi range
  •  4 x for ranges up to 900 psi (2000 psi maximum)
Media Compatibility Fluids compatible with 316 stainless steel, polyurethane (cable) and EPDM (nose cone).
Excitation Voltage

PDCR 1730 (mV) 
10 V at 1 mA nominal Output is fully ratiometric to supply within 2.5 V to 12 V limits.

PTX1730 (mA)
9 to 30 VDC across terminals

For pulse power operation refer to technical note.

The minimum supply voltage (VMIN) which must appear across the pressure transmitter terminals is 9 V and is given by the following equation: VMIN = VSUP – (0.02 x RLOOP) Where VSUP is supply voltage in Volts, RLOOP is total loop resistance in Ohms

Output Signal

PDCR 1730

  • 50 mV for 5 psi range
  • 100 mV for ranges 10 psi and above

PTX 1730 
4 to 20 mA proportional for zero to FS pressure

Common Mode Voltage – PDCR 1730 Nominally 50% of excitation voltage
Output Impedance – PDCR 1730 5 kO nominal

Performance Specification

Accuracy Combined effects of Non-linearity, Hysteresis and Repeatability: ±0.25% FS BSL max
Zero Offset & Span Setting

PDCR 1730 
Typical: ±1.5 mV Maximum: ±3 mV

PTX 1730 
Maximum: ±0.1 mA

Long-Term Stability ±0.2% FS typical per annum
Operating Temperature Range -4 to 140°F (-20 to 60°C)
Compensated Temperature Range 30 to 85°F (-1 to 30°C)
Temperature Effects ±0.5% FS Temperature Error Band (TEB)
Shock and Vibration MIL-STD-810E, method 514.4. Category 10 min. integrity. Figure 514.4-16 
Product will withstand 20 g peak shock half sine wave ms duration in all axes,
Insulation Greater than 100 MO at 500 VDC

Physical Specification

Pressure Connection G1/4 (female) with recessed open face diaphragm, fitted with protective EPDM nose cone.
Electrical Connection Vented polyurethane cable with integral Kevlar® strain relief cord rated to 200 lb load. Water ingress protection IP68 to 1000 psi.
Cable Lengths Variable cable lengths available from 3 to 1900 ft.
CE marking CE marked for electromagnetic compatibility and pressure equipment directive.
Documentation Statement of conformity and installation notes supplied as standard.

PTX/PDCR 1730 Series - Pressure Sensors Dimensions


A full range of accessories is available to enhance installation, operation and maintenance of the 1730 Series as listed below: 

  • STE moistureproof sensor termination enclosure (202-034-01)
  • Slimline sink weight Ø0.69 in (222-116-01)
  • Short sink weight Ø1 in (222-117-01)
  • Cable clamp system (192-373-01)
  • 360° rotatable calibration adaptor to: G1/8 (DA4112-3-01) 1/8 NPT (DA4112-4-01)
  • Economical direct calibration adaptor to: G1/8 (DA2536-1-01) 1/8 NPT (DA2536-2-01)

Ordering Information

Please state the following:

  • (1) Model PDCR 1730 (mV) or PTX 1730 (mA)
  • (2) Pressure range and scale units
  • (3) Cable length required
  • (4) Accessories (order as separate items).

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