204B-4 In Stock

The 204B-4 by Newport is a Digital Panel Voltmeter designed for the precise digital representation of analog bipolar voltages. It incorporates advanced features to enhance accuracy and noise rejection in voltage measurements. This voltmeter can separate digital and analog ground by up to 350 V when used with a compatible optical isolator. This isolation feature ensures the integrity of voltage readings by minimizing interference from ground-related issues. What sets this voltmeter apart is its true bipolar signal integration around zero, ensuring that accuracy is maintained even at the lower end of each measurement range. This voltmeter is does not introduce the signal before integration, which can introduce errors by adding normal mode noise to the reading. The 204B-4 features an average value circuit that offers exceptional noise rejection for both normal mode and AC line transient noise. This noise rejection is effective across the entire signal range, from zero to full scale, ensuring reliable and accurate voltage measurements. One of the notable benefits of this voltmeter is its ability to conduct ratio measurements without the need for modifications or external logic. The configuration of this voltmeter is 3-wire, utilizing a common ground. It's important to note that the reference voltage must fall within a specified voltage range to ensure optimal performance.