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590 Series

Technical Instructions

Document No. 155-719

September 9, 2009

Differential Pressure Sensor

Sensor in Conduit Housing Sensor without

Conduit Housing

Siemens Industry, Inc.

Description

The 590 Series Differential Pressure Sensors obtain differential or gauge (static)

pressures and convert this pressure difference to a proportional electrical output. They

are offered with a 0 to 10 Vdc and 4 to 20 mA output.

Static accuracy is ±1% full scale in normal ambient temperature environments. The

units are temperature compensated to less than ±0.033% FS/°F of thermal error over

the temperature range of 0°F to 150°F (-19°C to 66°C).

Features

• 10 PSI proof pressure on all ranges

• 24 Vac excitation

• 0 to 10 Vdc analog input is compatible with all energy management systems

• Fully protected against reverse wiring

• 1% accuracy improves variable air volume system performance

• Optional accuracies as high as 0.25% FS

• Meets

conformance standards

Applications

• Heating, Ventilating and Air Conditioning (HVAC)

• Energy management systems

• Variable Air Volume (VAV) and fan control

• Environmental pollution control

• Static duct and clean room pressures

• Oven pressurization and furnace draft controls

Summary of content (4 pages)

PAGE 1
Technical Instructions Document No. 155-719 September 9, 2009 590 Series Differential Pressure Sensor Sensor in Conduit Housing Description Sensor without Conduit Housing The 590 Series Differential Pressure Sensors obtain differential or gauge (static) pressures and convert this pressure difference to a proportional electrical output. They are offered with a 0 to 10 Vdc and 4 to 20 mA output. Static accuracy is ±1% full scale in normal ambient temperature environments.
PAGE 2
Technical Instructions Document Number 155-719 September 9, 2009 590 Series Differential Pressure Transducer Table 1. Product Numbers Product Number Percent Accuracy 590-501 590-502 1% FS 590-503 Pressure Range Inches WC (Water Column) In Conduit Box 5 No 2 1 590-505 ± 0.25 590-506 5 590-507 1% FS 590-508 2 1 590-510 ± 0.25 590-780 1 0.4% FS 590-781 590-782 Yes 0.65 0.
PAGE 3
590 Series Differential Pressure Transducer Electrical (Voltage) Technical Instructions Document Number 155-719 September 9, 2009 Circuit 3-wire (Com, Out, Exc) Excitation/Output 1 2 9 to 30 Vdc/0 to 5 Vdc 9 to 30 Vac/0 to 5 Vdc 2 12 to 30 Vac/0 to 10 Vdc Bi-directional output at zero Pressure Output Impedance 1 2 Electrical (Current) 2.5 Vdc (±50m) 100 ohms Calibrated into a 40K ohm load, operable into a 5000 ohm load or greater.
PAGE 4
Technical Instructions Document Number 155-719 September 9, 2009 Operation 590 Series Differential Pressure Transducer This sensor uses an improved all stainless steel micro-tig welded sensor. The tensioned stainless steel diaphragm and insulated stainless steel electrode, positioned close to the diaphragm, form a variable capacitor. Positive pressure moves the diaphragm toward the electrode, increasing the capacitance.