The Dwyer 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.
