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SERIES 647 , DWYER , WET/WET DIFFERENTIAL PRESSURE TRANSMITTER

SERIES 647 | DWYER

WET/WET DIFFERENTIAL PRESSURE TRANSMITTER
Ranges from 0 to 25 in w.c., ±1.0% Accuracy, NEMA 4 (IP56) Enclosure, 2-Wire

FEATURES/BENEFITS
• Versatile for liquid or gas supports designs requiring more precise
measure
ments in support of application
• Temperature compensated improves performance of device for accurate
measure
ment under different operating environments.
• Output signal provides capability to interface with automation systems to
centralize
monitoring
APPLICATIONS
• Flow

• HVAC automation
• Process control

• Pneumatic systems

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SERIES 645 , DWYER , WET/WET DIFFERENTIAL PRESSURE TRANSMITTER

SERIES 645 | DWYER

WET/WET DIFFERENTIAL PRESSURE TRANSMITTER
±0.25% Accuracy, Quick Response, 2-Wire Design

FEATURES/BENEFITS
• Versatile, high-accuracy device for liquid or gas supports designs requiring
more precise measurements in support
of application
• Optional 3-way valve manifold supports simplifying installation or removal of
transmitter without interrupting process
APPLICATIONS
• Process control

• Filter monitoring
• Refrigeration equipment

• Pump speed control
• HVAC equipment

• Liquid level measurement2

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SERIES 629 , DWYER ,WET/WET DIFFERENTIAL PRESSURE TRANSMITTER

SERIES 629 | DWYER

WET/WET DIFFERENTIAL PRESSURE TRANSMITTER
0.5% Accuracy, NEMA 4X (IP66) Enclosure

FEATURES/BENEFITS
• Versatile, high-accuracy device for liquid or gas supports designs requiring
more precise measurements in support
of application
• Minimum components provide excellent response and reliability
• Span and zero controls reduce installation and service time
• Terminal block reduces wiring difficulties saving installation time
• Optional LED indicator provides local status to identify operational conditions.
• Optional 3-way valve manifold supports higher line pressures or simplifying
removal of transmitter without interruptin
g process
APPLICATIONS
• Flow elements

• Heat exchangers

• Filters
• Coils

• Chiller

• Pumps

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SERIES 629C, DWYER, Wet/Wet Differential Pressure Transmitter

SERIES 629C, DWYER, Wet/Wet Differential Pressure Transmitter

FEATURES/BENEFITS
• Powered by either DC or AC – take advantage of most readily available power source
reducing installation costs
• Optional LCD does not need a separate power supply – lowers installed cost
• Selectable voltage range – provides flexible choice for changing design or inputs for
process/HVAC controllers being used to monitor and control
• Push button zero (versus trim pot) – more simple zeroing provides easy install and
calibration reducing installation time and possibility of operator error
• Optional LCD indicator provides local status to identify operational condition

APPLICATIONS
• Flow elements
• Heat exchangers
• Filters
• Coils
• Chiller
• Pumps

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