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Differential pressure / Volume flow controller with relay - DPC200-R

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Differential pressure / Volume flow controller with relay function

  • Electromechanical diaphragm measuring system
  • Measuring range from 0...50 Pa (0,5 mbar) up to 0...6000 Pa (60 mbar)
  • Alphanumeric LCD-display
  • Analogue output 0...10 V
  • Relay alarm output for measuring and control mode
  • Selectable measurements (differential pressure or volume flow)
  • Selectable units (metric or imperial)
  • Adjustable k-factor for volume flow calculation
  • Controlling mode or measuring mode selectable
  • Measuring mode with adjustable limit value
  • Control mode with adjustable:
    •    2 setpoints
    •    PI parameters for PI algorithm
    •    maximum output voltage
    •    Control action: positive / heat or negative / cool
  • Supply voltage 10...30 Vdc; 24 Vac (+/-15%)
  • Compact plastic housing IP 54

The DPCs are electromechanical differential pressure / volume flow controllers with a diaphragm measuring system and a comprehensive evaluation software. They are used to measure and control the smallest differential pressures of non-aggressive gases, in particular of air.

Their optimal application area can be found in the field of climatic technology for controlling fans, room pressure monitoring or filter control. The devices allow controlling of air flow or keeping up a constant pressure in a closed environment.

In addition to the analog output, an additional alarm output (open collector, max. 30 V / 30 mA or relay 250 Vac / 10 A) is available for limit monitoring or filter monitoring. The device provides a radiated output signal as a volumetric flow sensor. In the case of the pressure or volume flow control, the output signal is the manipulated variable of the PI control.


 

PERFORMANCE:

  • Overpressure protection: 0.2 bar
  • Static pressure: max. 0.2 bar
  • Zero point calibration: Adjustable by REEDcontact, no cyclic zero-point calibration required
  • Reaction time: direct

ACCURACY / ERROR LIMIT:

  • Zero drift: ± 0.75 %
  • Sum of linearity and hysteresis: ± 0.5 % ... ± 1 % 
  • Temperature drift zero point: ± 0.3 % / 10 K
  • Temperature drift measuring range: ± 0.2 % / 10 K

TECHNICAL SPECIFICATIONS:

  • Operating mode: Measuring mode or control mode
  • Measuring medium: Air or non-aggressive gases
  • Measuring principle: Electromechanical diaphragm measuring system
  • Measuring unit: Pa / InH20 or m3/h or cfm
  • Smallest measuring range: 0...50 Pa (0.5 mbar)
  • Largest measuring range: 0...6000 Pa (60 mbar)
  • Measuring range: 0…50 Pa (0.5 mbar), 0…100 Pa (1 mbar), 0…500 Pa (5 mbar), 0...1000 Pa (10 mbar), 0...2000 Pa (20 mbar), 0…4000 Pa (40 mbar), 0…6000 Pa (60 mbar)
  • Measuring range selection: Factory preset
  • Adjustable controlling parameters: P/I - parameter, k-factor, maximum output voltage, normal/ inverse control
  • Characteristic: linear for pressure measurement, radiated for volume flow measurement
  • Ambient temperature: -10...+50 °C
  • Storage temperature: -25...+60 °C
  • Control characteristic: PI - algorithm
  • Setpoint settings: 2 setpoints can be set via keys, selection of setpoints via potential free contact
  • Limit signal Output / alarm output: Relay 250 Vac / 10 A
  • Alarm delay time: Freely adjustable in the range of 0 ... 60 seconds - 2 ... 15 minutes

PHYSICALLY:

  • Housing: UL 94 HB; Ultramid with hinged lid of ABS
  • Dimensions: 95  x 70  x 54 mm (w x h x d)
  • Weight: approx. 250 g
  • Protection class: IP 54 according EN 60529
  • Display: Two-line alphanumeric LCD display, 2 x 16 characters
  • Electrical connections: Cable entry M16 x 1.5, screw terminals, electronics protected against incorrect polarity
  • Pressure connections: Hose connections 5 mm ø and 6 mm ø
  • Operational position: Vertical, position dependence when rotated through 90° approx. 25 Pa

ELECTRONIC:

  • Power supply: 20...30 Vdc; 24 Vac (±15%)
  • Power consumption: approx. 10 mA @ 24 Vdc, and approx 20 mA with relay
    Output: 0...10 V (Imax = 0.4 mA @ 10 Vdc, Imax = 2 mA @ 20 Vdc)

CONFORMITY:

  • EMC: EN 61000-6-2, EN 61000-6-3, CE-mark
  • RoHS: According RoHS-directive 2011/65/EU

Additional product information

manual Download
data sheet Download

Accessories

Product Note Status Price
Mounting set
accesories 13.00 € *
Delivery weight: 165 g
* Prices without VAT or delivery
Display accessory details

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