G408-0001  DC Powered DC Input Field Configurable Isolator

The Ultra SlimPak G408 is a DIN rail mount, DC input signal conditioner with 1800VDC isolation between input, output and
power. The field configurable input and output offers flexible, wide ranging capability for DC current and voltage signals.
The input can be configured for any one of 12 voltage ranges from 10mV to 100V or 6 current ranges from 1mA to 100mA (see Table
1). The output is linear to the input and can be set for either 0- 5V, 0-10V, 0-1mA, 0-20mA or 4-20mA (for models G408-0001)
and -5 to +5V or -10 to +10V (for model G408-1001). Wide ranging, precision zero and span pots allow 50% adjustability
of offset and span turn-down within each of the 18 switch selectable ranges. For example, the 0-2mA input range could be
turned down to 0-1mA and provide a full scale output signal (e.g. 4-20mA), or turned down and offset to achieve a 1-2mA/4-20mA
I/O combination.
The G408 also accepts bipolar inputs (e.g. 10V range set to bipolar = -10 to +10V) and offers selectable normal or reverse operation (e.g.
4-20mA/20-4mA). The ASIC based I/O channel is optically isolated to 1800VDC and is transformer isolated from the power supply.

G408-0001

Application
The G408 is useful in eliminating ground loops, converting signal levels, and providing signal drive. The field configurable, wide
ranging capability ensures maximum flexibility for most DC to DC applications, minimizing spare part requirements.
Diagnostic LED
The G408 is equipped with a dual function LED signal monitor. The green, front mounted LED indicates both DC power and input
signal status. Active DC power is indicated by an illuminated LED.
If the input signal is more than 110% of the full scale range, the LED will flash at 8Hz. Below -10%, the flash rate is 4Hz.

Configuration
The G408 has 18 input range settings. Trim potentiometers allow 50% input zero and span adjustability within each of the 18 full
scale input ranges.
Unless otherwise specified, the factory presets the Model G408-0001 and G408-1001 as follows:
G408-0001
Input Range: 4-20mA
Output Range: 4-20mA
G408-1001
Input Range: 4-20mA
Output Range: -10 to +10V
The DC power input accepts any source between 9 and 30V; typically a 12V or 24VDC source is used (see Accessories).