CSA Approved Galvanic Isolation Amplifier
The G005 Galvanic Isolation Amplifier has been designed specifically
for use with Positek® Intrinsically Safe position sensors in hazardous
Zone 0, 20 Class I, II & III applications and is certified; [Ex
ia IIC] [AEx ia IIC]
[AEx ia D IIIC].
Positek® IS 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 G005 Galvanic Isolation Amplifier provides a regulated and resistively
limited +5V dc power supply required by Positek® IS sensors, it
can be connected in three or five wire modes. Used in five wire mode
positive and negative sense inputs enable the G005 to dynamically
adjust the sensor supply thus ensuring the correct voltage across
the sensor. Connected in this way the G005 can compensate for 15O
conductor resistance. The sense terminals are linked internally so
the end user can use the G005 in three wire or five wire mode without
the need to fit or remove external links.
The G005 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 G005 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-integrity earth.
The output of the G005 is factory configured to either 0.5 to 9.5V
or 4-20mA and has a bandwidth of 4.7kHz, making it ideal for servo
Output options available;
G005-545 0.5 to 9.5V
G005-546 9.5 to 0.5V
G005-425 4 to 20mA
G005-426 20 to 4mA
Versions are also available for potentiometer inputs.
The screw terminal connector plugs are coded to eliminate cross connection.
The G005 can also be supplied configured for use with potentiometers.