• LiquiSeal™ 738 Series Differential Pressure Purge Control Level Transmitters
  • LiquiSeal™ 738 Series Differential Pressure Purge Control Level Transmitters - 2
  • Fully integrated air purge regulator that provides continuous level measurement
  • Integral differential pressure transmitter provides 4 mAdc to 20 mAdc output proportional to liquid level
  • Reliable proven sensing technique
  • A highly refined versions of the basic bubbler air control
  • All-pneumatic version available
  • Simple to install and maintain
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Nominal Span Adjustment Range (psid)

Span Adjustment Range [Min] (psid)

Temperature [Min] (ºC)

Temperature [Min] (ºF)

Temperature [Max] (ºC)

Temperature [Max] (ºF)

Burst Pressure (psig)

Accuracy

Part Number

Description

Pressure Range

Accuracy

Output Signal

N/A LiquiSeal™ 738 Series 0 to 5 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 5 psid N/A ± 0.34% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 10 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 10 psid N/A ± 0.27% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 15 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 15 psid N/A ± 0.24% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 30 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 30 psid N/A ± 0.22% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 50 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 50 psid N/A ± 0.21% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 2 psid Pressure Range and 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 2 psid N/A N/A
N/A LiquiSeal™ 738 Series 0 to 5 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 5 psid N/A ± 0.34% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 10 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 10 psid N/A ± 0.27% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 15 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 15 psid N/A ± 0.24% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 30 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 30 psid N/A ± 0.22% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 50 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 50 psid N/A ± 0.21% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 2 psid Pressure Range and Polyflo; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 2 psid N/A N/A
N/A LiquiSeal™ 738 Series 0 to 5 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 5 psid N/A ± 0.34% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 10 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 10 psid N/A ± 0.27% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 15 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 15 psid N/A ± 0.24% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 30 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 30 psid N/A ± 0.22% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 50 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 50 psid N/A ± 0.21% Full Scale N/A
N/A LiquiSeal™ 738 Series 0 to 2 psid Pressure Range and Swagelok; (1) 3/8" Tube, (1) 1/4" Tube x 1/4" National Pipe Thread (NPT) (Compatible with Copper or Poly Tubing) Fittings Differential Pressure Purge Control Level Transmitter N/A 0 to 2 psid N/A N/A
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