Potentiometer Position Input Process Indicator Model DIS876
The DIS876 provides a display, optional isolated DC output voltage or current proportional to the slide position of a potentiometer, and optional alarm setpoints. The units include filtering and conditioning to reduce susceptibility to transients and noisy operations as well as a stable 1 V power supply to excite the potentiometer. Any value potentiometer from 100 ohms to 100 kilohms can be used. The digital display utilizes an auto-zero dual-slope integrating A/D converter for accuracy and stability.
All controls are accessible by removing the gasketed front access panel. The display controls are wide-ranging so that they can be calibrated to display engineering units. Decimal point selection is made with a switch, also accessible from the front. A complete set of engineering unit labels is sent with each DIS. Once the display has been adjusted to read the correct engineering units, the alarm setpoints can be adjusted without test equipment and without disturbing the output voltage or current.
Either setpoint may be displayed by use of the SP CAL switch. Each setpoint has an LED to indicate alarm status. The alarms have adjustable deadbands. Terminations are made to a screw terminal connector on the rear of the case.
Tank level, valve or actuator position indication, control, monitoring, data acquisition and warning, creating and displaying test signals.
The DIS is designed to be mounted from the front of a panel through a standard horizontal 3.62 x 1.77 inches (1/8 DIN) cutout. Two mounting cam-screws secure the DIS to the panel.
* Within specified range limits.
** Compliance: The sum of the voltage drops in the output loop cannot exceed 24 V at rated current