G448-0002 Bridge Input Field Configurable Isolator ULTRA SLIMPAK

Description

Overview

Essential details：G448-0002 Bridge Input Field Configurable Isolator ULTRA SLIMPAK

Description
The G448 is a DIN rail mount, bridge or strain gauge input signal conditioner with 1800VDC isolation between input, output and power. The field configurable input and output offer flexible, wide ranging capability for bridge or strain gauge input applications from 0.5mV/V to over 50mV/V.
Wide ranging, precision zero and span pots allow 50% adjustablity of offset and gain within each of the 11 switch selectable input ranges. The output can be set for either 0-5V, 0-10V, 0-1mA, 0- 20mA or 4-20mA.
Application
Three way isolation in the G448 completely eliminates ground loops from any source. Isolation protects expensive SCADA systems from ground faults and provides filtering for noise reduction which can be a significant problem with small, millivolt, bridge signals. Wide ranging flexibility allows the user to easily zero out dead-loads in weighing systems or configure bipolar input ranges for expansion-compression or vacuum-pressure bridge applications.

G448-0002

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The G448 has 11 input range switch settings. Trim potentiometers allow 50% input zero and span adjustablity within each of the 11 full-scale, input ranges.
For example, the 200mV switch setting in Table 1 configures the input for a 0 to 200mV range. Since the span can be contracted by 50%, this enables an input span as narrow as 100mV of the range, or 50%. This span can be positioned anywhere within the 0-200mV range with a zero off-set as large as 50% of the full scale range (e.g. 100 to 200mV input).
Unless otherwise specified, the factory presets the Model G448 as follows:
Input Setting: 0 to 50mV
Input Range: 0 to 30mV (3mV/V)
Excitation: 10V
Operation: Direct
Output: 4 to 20mA
The DC power input accepts any DC source between 18 and 30V, typically a 24VDC source is used (see Accessories). For other I/O ranges refer to Tables 1 through 4 and reconfigure switches SW1 and SW2 for the desired input range, function, excitation and output range.