Signal Conditioner Model

S 988

Highlights

• In- and outputs galvanic isolated
• 1000 V rms of CMV isolation
• Customized signal adjustment
• Low Power Consumption
• Standardized output signals

• General
  • In many applications of measuring- and control technique potential seperations are necessary. The constantly growing use of microprocessors entails frequently ground-loops.
    For the elimination of such problems, as well as in the trouble for the protection of this plants a galvanic separation is inevitable. For many applications, particulary with applications with high common-mode voltages there is almost no alternative for the use of isolating signal conditioner.
    The ERMA isolating signal conditioner type of S 988 is developed for the
    industrial-employment.
    It serves
    a) for the galvanic seperation from input- and output signal
    b) for the signal adjustment into a stamped output signal.
• Input

  • Input Variable:	Direct current or direct voltage
    Voltage:	0...30 mV to 0...300 V
    -Impedance:	>100 k to 10 MOhm
    Current:	0...1 mA to 0...100 mA
    -Voltage drop:	max. 150 mV

• Output

  • Output Variable:	Direct current or direct voltage
    Voltage:	0...10 V
    -Load capacity:	10 mA
    Current:	0/4...20 mA
    -Burden:	max. 500 Ohm

• Power Supply
  • 230 V AC isolated
  • optional 115 V AC isolated
  • optional 18-36 V DC isolated