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Temperature Transmitter Application
Process industry Industrial furnace construction and the thermal industry Plant construction and mechanical engineering Food industry Pharmaceutical industry Cooling systems Heating and air conditioning Plastics industry Renewable energy Water and wastewater
Pressure Transmitter Applications
Monitoring of gaseous, non-aggressive media. Possible usage areas are: • Building automation and air conditioning systems • Overpressure measurement in clean rooms and laboratories • Measurement of constant pressure in VAV applications • Dynamic filter and ventilator monitoring.
Occupancy Sensor Applications
Education, Healthcare, Hospitality, Industrial, Retail

Aerosense Series DPT-Flow Differential Pressure cum Air Flow Transmitter

Series DPT-Flow Differential Pressure cum Air Flow Transmitter

Series DPT-Flow Differential Pressure cum Air Flow Transmitter engineered for building automation in HVAC/R industry. It measures volume flow, velocity and static and differential pressure. The DPT-Flow devices can be connected directly to pressure measurement points in centrifugal fan.

It has optional Auto-Zero feature which electronically adjusts the transmitter zero at predetermined time intervals (every 10 minutes). The Auto-Zero adjustment takes 4 seconds. The AZ calibration eliminates all output signal drift due to thermal, electronic or mechanical effects.

Product Applications:

  • Airflow monitoring across centrifugal fans and blowers
  • In-duct airflow monitoring
  • VAV applications
  • Service: Dry air or non-aggressive gases
  • Measuring element: Piezo resistive
  • Accuracy: ±1 %
  • Thermal effects: Temperature compensated across the full spectrum of capability
  • Proof pressure: 25 kPa
  • Zero point calibration: Automatic autozero or manual pushbutton
  • Response time: 1.0 to 20 sec selectable via menu
  • Pressure units (select via menu): PA, kPA, mBar, In. WC, MM WC
  • Pressure output scale (select via menu): 100-1000/ 200-2000/ 500-5000/ 700-7000 (Depending Upon Models)
  • Flow units (select via menu): Volume: m3/s, m3/hr, cfm, l/s
  • Velocity: m/s, ft/min
  • Operating temperature: -10...50° C with autozero (-AZ) calibration -5...50 °C
  • Storage temperature: -20...70 °C Humidity: 0 to 95 % rH,
  • non condensing
  • Dimensions: 90.0 x 95.0 x 36.0 mm
  • Electrical connections: 4-screw terminal block Cable entry: M16
  • Weight: 150 g
  • Mounting: 2 each 4.3 mm screw holes, one slotted
  • Materials: ABS
  • Protection standard: IP54
  • Display: 2-line display (12 characters/line)
  • Size: 46.0 x 14.5 mm
  • Line 1: Volume or velocity measurement
  • Line 2: Pressure measurement

ELECTRICAL:

Voltage:

  • Maximum load: 500 Q Power consumption: <1.0 W Circuit: 3-wire (V Out, 24 V, GND)
  • Input: 24 VAC or VDC. ±10 %
  • Output: 0-10 VDC, selectable via jumper
  • Resistance minimum: 1 kQ Current:
  • Power consumption: <1.2 W
  • Circuit: 3-wire (mA Out, 24 V, GND)
  • Input: 24 VAC or VDC. ±10 %
  • Output: 4-20 mA selectable via jumper
  • Airflow monitoring across centrifugal fans and blowers
  • In-duct airflow monitoring
  • VAV applications

AZ-calibration is a function in the form of an automatic zeroing circuit built into the PCB. The AZ-calibration electronically adjusts the transmitter zero at predetermined time intervals (every 10 minutes). The AZ-calibration eliminates all output signal drift due to thermal, electronic or mechanical effects, as well as the need for technicians to remove high and low pressure tubes when performing initial or periodic transmitter zero point calibration.

The AZ adjustment takes 4 seconds. To avoid conflict with the BAS system, the output and display values will freeze to the latest measured value, after which the device returns to its normal measuring mode. Transmitters equipped with the AZ-calibration are virtually maintenance free.

 

Models

Pressure Range (Scalable Via Menu)

Air Velocity/Flow Ranges. (Scalable Via Menu)

DPT-Flow-1000-D

0-1000 PA

0-1:50 m3/s 0-4000...200000m3/h 0-2000...100000cfm 0-1000:50000 l/s 0-10...100m/s 0-2000....20000fpm

DPT-Flow-2000-D

0-2000 PA

DPT-Flow-5000-D

0-5000 PA

DPT-Flow-7000-D

0-7000 PA