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The PD650 Large Display Universal Process Meter features 2.3" high digits housed in a rugged die cast aluminum NEMA 4X enclosure. The PD650 accepts the common process signals such as 4-20 mA, 0-5 VDC, and 0-10 VDC. It has all the features of the PD690 as well as a few new ones: dual 24 volt isolated power supplies for both the input and output loops and built-in relay suppression for more consistent relay operation. The PD650 can also function as a flow rate/totalizer, operating like our PD692. Features include: alternating rate/total display, programmable time base of second, minute or hour, automatic total reset, square root extraction, and many more.

The PD650, PD655 and PD656 are Large Display Process Meters with flow rate, totalizer and batch control capabilities. Each accepts the common process signals such as 4-20 mA, 0-5 VDC, 1-5 VDC and 0-10 VDC and displays these signals in engineering units on a large, high efficiency, 4-1/2 digit red LED display. All units also provide two isolated 24V power supplies to drive both the input and output loops. Options include up to 4 relays for alarms or batch controlling, as well as an isolated 4-20 mA transmitter output.

Precision Digital's Universal Temperature Meters handle temperature displaying, alarming and re-transmitting applications with simplicity, accuracy and reliability. The PD750 is available with up to 4 relays, isolated 4-20 mA output, and is factory programmed for easy field selection of the thermocouple or RTD type. Just select your input type (J,K,T,E,R,S thermocouple or 100 ohm RTD), and either Fahrenheit or Celsius and connect the sensor. The PD751 accepts 10 ohm copper while the PD752 accepts 120 ohm nickel RTD inputs.

The PD682 is a low cost digital panel meter that can be mounted in hazardous locations to provide on the spot display of important process variables in engineering units. And its 1 volt drop means the PD682 won't overload a loop that's protected by intrinsic barriers.

The Minimux is a microprocessor-based eight channel analog input scanner/multiplexer and annunciator that provides low cost automatic switching for multi-point display and alarm systems. Each Minimux can automatically switch up to eight inputs to another device such as a digital panel meter, controller, or PLC. Multiple units can be connected together to scan an unlimited number of points. Front panel push-buttons allow for easy programming of independent adjustable dwell times as well as rapid channel skipping. External scanning allows an external device such as a PLC or DCS to direct which channel to scan and for how long. The built-in annunciator logic can detect and indicate which input signals are in alarm condition. The built-in horn, alarm relay, and front panel LEDs are sure to catch an operator's attention. Signal switching is done with reed relays making the Minimux ideal for switching thermocouples, RTDs, control loops, and AC & DC signals.

The Minimux is a microprocessor-based eight channel analog input scanner/multiplexer and annunciator that provides low cost automatic switching for multi-point display and alarm systems. Each Minimux can automatically switch up to eight inputs to another device such as a digital panel meter, controller, or PLC. Multiple units can be connected together to scan an unlimited number of points. Front panel push-buttons allow for easy programming of independent adjustable dwell times as well as rapid channel skipping. External scanning allows an external device such as a PLC or DCS to direct which channel to scan and for how long. The built-in annunciator logic can detect and indicate which input signals are in alarm condition. The built-in horn, alarm relay, and front panel LEDs are sure to catch an operator's attention. Signal switching is done with reed relays making the Minimux ideal for switching thermocouples, RTDs, control loops, and AC & DC signals.

The Minimux is a microprocessor-based eight channel analog input scanner/multiplexer and annunciator that provides low cost automatic switching for multi-point display and alarm systems. Each Minimux can automatically switch up to eight inputs to another device such as a digital panel meter, controller, or PLC. Multiple units can be connected together to scan an unlimited number of points. Front panel push-buttons allow for easy programming of independent adjustable dwell times as well as rapid channel skipping. External scanning allows an external device such as a PLC or DCS to direct which channel to scan and for how long. The built-in annunciator logic can detect and indicate which input signals are in alarm condition. The built-in horn, alarm relay, and front panel LEDs are sure to catch an operator's attention. Signal switching is done with reed relays making the Minimux ideal for switching thermocouples, RTDs, control loops, and AC & DC signals.