PR ELECTRONICS, Isolation Amplifier

Isolation amplifier

Galvanically separated input, output, and supply

• Bipolar current / voltage input
• Signal conversion
• Current and voltage output
• 24 VDC supply or universally supplied
• Applicable in PELV/SELV circuits

• Advanced features

  • Programmable input and output ranges using internal DIP-switches.
  • Front panel fine adjustment of 0 and 100% values for special ranges.

  Application

  • Galvanic separation of analog signals.
  • Measurement of floating signals.

  Technical characteristics

  • Analog signal conditioning with microprocessor based gain and zero offset with a fast response time of less than 25 ms.
  • Signal conversion within the ranges: -250...+250 VDC or -50...+50 mA on the input and 0...10 (20) VDC and 0...20 mA on the output.
  • Galvanically separated between input, supply, and output.
  • 2-wire transmitter supply and a reference voltage of 2.5 VDC, max. 15 mA for short circuit-protected supply of potentiometers.
  • Buffered voltage output 0...20 V, 10 mA.
  • The output can be ordered for standard 0/4...20 mA, and 0/1...5mA or special currents and selectable voltages within the signal range 0...1 VDC or and ranges 0...10 VDC.
  • Output signal reversal.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

  • Environmental Conditions

    Specifications range	-20°C to +60°C
    Calibration temperature	20...28°C
    Relative humidity	< 95% RH (non-cond.)
    Protection degree	IP50

    Mechanical specifications

    Dimensions (HxWxD)	80.5 x 35.5 x 84.5 mm (D is without pins)
    Weight DC / universally supplied	125 g / 165 g

    Common specifications

    Supply voltage	19.2...31.2 VDC
    Supply voltage, universal	21.6...253 VAC, 50...60 Hz or 19.2...300 VDC
    Max. power consumption	≤ 2.4 W (2284--D) ≤ 2.5 W (2284--P)
    Isolation voltage, test / working	3.75 kVAC / 250 VAC
    Signal / noise ratio	Min. 60 dB
    Response time (0...90%)	< 25 ms
    Effect of supply voltage change	< 0.005% of span / VDC
    2-wire transmitter supply (pin 7...5)	19...28 VDC / 20...0 mA
    Auxiliary voltages: Reference voltage	2.5 VDC ±0.5% / 15 mA
    Temperature coefficient	< ±0.01% of span / °C
    Linearity error	< 0.1% of span
    EMC immunity influence	< ±0.5% of span

    Input specifications

    Max. offset	50% of max. value
    Current input: Measurement range	-50...+50 mADC
    Min. measurement range (span), current input	0.53 mADC
    Input resistance, current input	Nom. 50 Ω
    Voltage input: Measurement range	-250...+250 VDC
    Min. measurement range (span), voltage input	27 mVDC
    Input resistance, voltage input	>1 MΩ...<10 MΩ

    Output specifications

    Max. offset	20% of max. value
    Current output: Signal range	0...20 mA
    Min. signal range	4 mA
    Load (max.)	20 mA/1000 Ω/20 VDC
    Load stability, current output	≤0.01% of span/100 Ω
    Current limit	23...28 mA
    Voltage output through internal shunt	See manual for details

    Approvals

    EMC	EN 61326-1
    LVD	EN 61010-1
    PELV/SELV	IEC 364-4-41 and EN 60742
    GOST R	Yes