Mighty Module Model DIS975
Frequency Input Process Indicator
The DIS975 provides a display, optional isolated DC output voltage or current proportional to a frequency input signal, and optional alarm setpoints. The units include filtering and conditioning to reduce susceptibility to transients and noisy operations. The digital display utilizes an auto-zero dual-slope integrating A/D converter for accuracy and stability.
All controls are accessible by removing a gasketed front access panel. The display controls are wide-ranging so that it 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.
The wide range input sensitivity allows the DIS to be driven from low level magnetic pickups as well as logic level signals. A choice of three input sensitivities allows the user to trade off sensitivity versus noise rejection. A built-in pullup resistor is connected to a spare input terminal to permit use with contact closure or open-collector inputs.
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.
Flow, speed of motors, conveyors, etc., indication, control, Hi/Lo alarm.
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
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