X005 Galvanic Isolation Amplifier

For use with intrinsically safe sensors

About the X005 Galvanic Isolation Amplifier

The X005 has been designed specifically for use with Intrinsically Safe position sensors and is certified intrinsically safe I and IIC.

The Intrinsically Safe sensors are ratiometric i.e. the output signal scales with the supply voltage. To ensure the safe area signal accurately corresponds with sensor displacement it is important that the sensor supply is correct.

The X005 Galvanic Isolation Amplifier provides a regulated and resistively limited +5V dc power supply required by the Intrinsically Safe sensors. It can be connected in three or five wire modes. Used in five wire mode positive and negative sense inputs enable the X005 to dynamically adjust the sensor supply thus ensuring the correct voltage across the sensor. Connected in this way the X005 can compensate for 15Ω conductor resistance.

The sense terminals are linked internally so the end user can use the X005 in three wire or five wire mode without the need to fit or remove external links.

The X005 has an input power supply range of 12 to 30 volts dc, making it suitable for a wide range of hazardous area applications. It is tri-port isolated providing isolation between the amplifier power supply, the hazardous area and the X005 output signal. The sensor supply and output are transformer coupled providing 2.5kV isolation between the safe and hazardous area circuits eliminating the requirement for a high-integrety earth.

The output is configured to either 0.5 to 9.5V or -20mA and has a bandwith of 4.7kHz, making it ideal for servo control loops.

Features X005

  • ATEX and IECEx approval
  • EX I (M1), EX (1)GD certified
  • Super fast 4.7kHz (-3dB) bandwith
  • Wide power supply range
  • Voltage and current output options
  • Three or five wire mode connection

Specifications

ATEX Approval
Ex I (M1)
Ex II (1) GD
Voltage
24V DC nom 12V-30V
Current Consumption (24V Supply)
Approximately 50mA (voltage O/P)
Approximately 70mA (current O/P)
Sensor Supply
5V at 15mA max
Lead Resistance for 15mA
15Ω max (all connections)
Voltage
0.5-9.5V - output resistance 5Ω
Current Loop
4-20mA, load resistance 0-1KΩ
Sensor Input Resistance
>5MΩ
Non-Linearity
<+/- 0.1% FS
Temperature Drift
<0.01% FS/°C for voltage outputs
Setting Time to 1% of Span
<300μs for 10-90% step change
Rise Time
<200μs for 10-90% step change
Bandwidth
DC to 4.7kHz (-3db)
Isolation
2500V between safe area terminals and hazardous area terminals, 50V between power rail (J4) and optput (J3)
Electromagnetic Compatibility
EN561236-2-1:2006 (EN31326-1:2006)
Ambient Temperature Range
-20°C to +60°C working
-40°C to +100°C storage
Housing
97.3 x 22.5 x 111.9mm
Protection Class
IP20
Mounting
35 x 7.5mm top-hat rail (DIN 46277-3)
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