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Model D1 is a programable sensor signal conditioner (SSC), which is developed to work with a wide range of resistive sensors in which the sensing elements are configured to a Wheatstone bridge circuit. On one hand the D1 SSC provides either constant excitation voltage or excitation current to the sensor, and on the other hand the D1 SSC amplifies and conditions the sensor output signals to the signal which meets the customer’s needs for his application. For instance, the output of the D1 SSC can be either an analogue or a digital signal which can be directly used by a PLC (programmable logic controller) or by any computer-based data acquisition system.
In fact the D1 SSC can process any input signal from sensors of output sensitivity ranging from 1.25mV/V to 20mV/V, and provide the sensors with either a constant excitation voltage of 4Vdc or a constant excitation current. The excitation current is adjustable from 50µA to 750µA by means of a computer or a specific device.
The output signals from the D1 SSC can be configured with various options, from analogue signals of 4~20mA, 0~5V or 0~10V, through ratiometric 10%~90%Vs, to digital signals of RS485, I2C or SPI, so as to meet the needs of different systems.
The Zero output and Span of the D1 SSC can be adjusted at any time, either via the computer at a laboratory or by the specific device on site when the D1 is operated in the field.
Thanks to the advanced technology of electronics, the D1 SSC delivers its programmable features for application. Therefore, the mechanical knobs have been eliminated from the previous version of D1. As a result, the current version of the D1 SSC can meet environment protection up to IP67.
1.25mV/V, …, 100mV/V
4~20mA, 0~5V, 0~10V, 10%~90%Vs, RS485, I2C, SPI
up to ±0.1%fs