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Starting at $1,214.95USD
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Dwyer

WWDP Differential Pressure Transmitter

30 field selectable variations in just 3 models, unidirectional and bidirectional pressure ranges, with optional LCD display

Starting at
$1,214.95USD
Have questions? We're here to help!
Have questions? We're here to help!
Configure

The Series WWDP Wet-to-Wet Differential Pressure Transmitter offers everything in one package by having 30 field selectable variations in just 3 models. The WWDP provides field selectable unidirectional and bidirectional pressure ranges, configurable 0 - 5 VDC, 1 - 5 VDC, 0 - 10 VDC, and 4 - 20 mA output. It also provides an auto-zero capability. The field selectable port swap feature eliminates costly replumbing if the unit is improperly installed or if the transmitter is simply replaced. An optional LCD display is available for on-sight indication of line and differential pressure. The all cast aluminum housing is rated NEMA 4 (IP66). These features make the WWDP transmitter an ideal instrument for measuring the flow of various liquids and gases, pressure drop across filters, measurement of liquid level or pressurized vessels, and for use in energy management and process control systems.

• Versatile device for liquid or gas supports designs requiring more precise measurements in support of application
• Field selectable port swap eliminates costly re-plumbing if unit is re-installed or replaced
• Uni-directional and bi-directional pressure selection with configurable output provides a single device that can meet broad application needs without having to specify multiple devices
• Optional LCD display provides local status to identify operational conditions
• NEMA 4 rated enclosure provides protection in harsh environments permitting outdoor monitoring or in areas where dust and particulate matter exists

ServiceGases or liquids compatible with 17-4 PH stainless steel
AccuracyAll pressure ranges have ± 1% full scale accuracy except the lowest selectable range of each unit is ±2% full scale
Stability± 0.5% per year
Temperature LimitsCompensated temperature range: 32°F - 130°F (0°C - 54°C);
Operating temperature range: -4°F - 185°F (-20°C - 85°C)
Pressure LimitsMax working pressure:
WWDP-1: 50 PSI;
WWDP-2: 100 PSI;
WWDP-3: 250 PSI;
Proof pressure: 2.2 x FS;
Burst pressure: 40 x FS
Thermal Effect2% FS/100°F (50°C) includes zero and span
Power Requirements12 - 30 VDC / 18 - 28 VAC (Reverse Excitation Protected).
Note: 4 - 20 mA output cannot be powered with AC voltage
Output SignalSelectable 0 - 5 VDC, 0 - 10 VDC, and 1 - 5 VDC; 4 - 20 mA
Zero & SpanDigital "re" zero button (should be used when changing ranges). Span can be adjusted by changing between field selectable ranges
Response Time1 s - 5 s (selectable)
Loop Resistance1000 Ω
Current ConsumptionVDC power: 0 - 5 VDC, 1 - 5 VDC output 4 mA (typ); 0 - 10 VDC output 5 mA (typ); 4 - 20 mA output 20 mA max. Current consumption will equal the transmitter output in current mode. VAC power: 0 - 5 VAC, 1 - 5 VAC, 0 - 10 VDC output 40 mA (typ)
Electrical Connections1/2 in conduit
Process Connections1/8 in female NPT internal
Enclosure RatingDesigned to meet NEMA 4 (IP66)
Mounting OrientationVertical; mount the pressure ports down (keeps debris from building up inside the pressure port)
Weight1.5 lb (680.4 g)
Agency ApprovalsCE

• Monitor differential pressure of a chiller
• Filter monitoring
• Liquid level
• Pressure vessels
• Process control
• Energy management

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