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Last Updates: 05/12/2020

Dwyer Series 629HLP Differential Pressure Transmitter

The Series 629HLP Differential Pressure Transmitters are suitable for measuring over-pressure, under-pressure, and differential pressure in compatible gases and liquids with 1% accuracy. The 629HLP is suitable for all measuring tasks in commercial, industrial or sanitary applications. Its single sensor design allows it to measure small increment pressure changes, and converts them to a linear analog output signal from 4 to 20 mA or 0 to 10 VDC.

Product Applications

  • Heat exchangers
  • Fan coils/air handlers
  • Core testing applications
  • Hydraulic systems
  • High line pressures/low DP
  • Pumps
  • Commercial/industrial processes
  • Sanitary process

Service : Compatible gases or liquids.

Wetted Material : 304 SS.

Housing Material : ABS.

Enclosure Rating : IP65.

Accuracy : ±1% from -5 to 60°C (23 to 140°F).

Stability : ±1% FS/year.

Temperature Limits : Ambient: -10 to 60°C (14 to 122°F); Process: -10 to 80°C (14 to 176°F).

Relative Humidity : 10% to 90% non-condensing.

Installation Position : Not position sensitive.

Over Pressure : 5 bars for 0 to 1 bar and 0 to 2.5 bar ranges, 12 bars for 0 to 4 bar and 0 to 6 bar ranges; 70 psi for 0 to 15 psi and 0 to 30 psi ranges, 174 psi for 0 to 60 psi and 0 to 90 psi ranges.

Burst Pressure : 8 bars for 0 to 1 bar and 0 to 2.5 bar ranges,18 bars for 0 to 4 bar and 0 to 6 bar ranges; 115 psi for 0 to 15 psi and 0 to 30 psi ranges, 260 psi for 0 to 60 and 0 to 90 psi ranges.

Static Pressure Limits : 25 bar (360 psi).

Output Signal : 4 to 20 mA, 0 to 10 VDC.

Response Time : 50 ms.

Rated Supply Voltage : 0 to 10 VDC Output: 12 to 36 VDC or 12 to 32 VAC (@ Max load of 2k Ω) 4 to 20mA output: 8 to 36 VDC.

Max Loop resistance : (Supply Voltage – 8 V) / 0.02 for 4 to 20mA output.

Power Consumption : Vout = 13 mA max, Iout = 24 mA max.

Electrical Connections : Form A DIN 43650.

Process Connections : 1/4″ female NPT, 1/4″ female BSPT.

Weight : 1 lb 4 oz (567 g).

Approvals : CE.

  • Rugged, versatile, high accuracy device
  • For liquid or gas systems requiring precise measurements
  • Provide excellent response and reliability
  • Suitable for static and dynamic measurements
  • Converts pressure changes into 4 to 20 mA or 0 to 10 VDC output
  • Compact, lightweight, capable to be installed in any arrangement making installation very simple
  • Capable to handle up to 360 psi (25 BAR)

Product Literature

Manual

Catalog Pages

Product Data Sheet

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