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HD404ST5AZLSR

Series: HD404T / HD404ST Series – Low Pressure Transmitters Brand: Delta OHM S.R.L.

Pressure transmitter, speed output.

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Specifications

Brand

Sensor

  • Piezoresistive

Resolution

  • 1 Pa for f.s. 1000 Pa
  • 0.1 mbar for HD404ST5
  • 0.05 mmH₂O for f.s. up to 50 mmH₂O
  • 0.1 mmH₂O for f.s. 100 mmH₂O
  • 0.002” H₂O for f.s. up to 4” H₂O
  • 0.01 m/s (only SR versions)
  • 0.1 Pa for HD404ST2
  • 0.5 Pa for f.s. up to 500 Pa (except HD404ST2)

Output

  • HD404T: active analog 0 to 10 Vdc (RLmin =10 kΩ) or 4-20 mA (RLmax = 500 Ω)
  • HD404ST: digital RS-485 Modbus-RTU

Response Time

  • HD404T with dip-switch set to FAST: 0.125 s in pressure mode 1 s in speed mode (only SR versions)
  • HD404T with dip-switch set to LOW: configurable 1, 2 or 4 s (default 2 s)
  • HD404ST configurable 0.125, 1, 2 or 4 s (default 2 s)

Overpressure Limit

  • 50 kPa

Connection to PC

  • HD404T: RS-232 serial port can be connected to a USB port by using the optional CP27 adapter
  • HD404ST: can be connected to a USB port by using the optional RS48 adapter

Zero Calibration

  • Automatic for the versions with AZ option

Compatible Media

  • Only air and non-aggressive dry gases

Power Supply

  • HD404T: 24 Vac ± 10 % or 18…40 Vdc
  • HD404ST: 12 to 30 Vdc

Absorption

  • HD404T: < 1 W @ 24 Vdc
  • HD404ST: < 100 mW @ 12 Vdc

Pressure Connection

  • Nickel-plated brass, Ø 6 mm

Electrical Connections

  • Screw terminal block, max. 1.5 mm2 , PG9 cable gland

Operating Conditions

  • -10° C to 60° C (-5° C to 50° C for the models with AZ option), 0 to 95 % RH

Protection Degree

  • IP65

Storage Temperature

  • -20° to +70° C

Documentation

Datasheet

Manual

View Product Series

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