The PDS178 Watchdog Temperature Scanning & Alarming System brings together a popular combination of Precision Digital products: the Trident meter, the Minimux II scanner, and the PDA2821 NEMA 4X enclosure. The scanner automatically switches between up to eight (8) input signals (4-20 ma, ±10 V, TC, or RTD) and sends them to the Trident meter for display. Signal switching is done via DPST reed relays. The Watchdog can be used in a variety of temperature and process monitoring applications. A very common application for this system is to monitor bearing temperatures. The Trident meter included with this system is available with standard 0.56" (14.2 mm) high LED digits or large 1.2" (30.5 mm) high LEDs.
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- The PD420 4-20 mA current loop set point generator provides a convenient way to generate a 4-20 mA signal that can be used to control another device. The PD420 features a backlit LCD display that can be programmed to display 0-100%, 4-20 mA or 3-21 mA and output either 4-20 mA or 3-21 mA. A builtin dial is provided to vary the displayed / output value. The dial may be programmed for coarse or fine adjustment
The Snooper PD865 is an 1/8 DIN Modbus® meter that can be programmed as a Modbus® RTU master, slave or snooper. In snooper mode, the PD865 listens to the Modbus traffic and displays a process variable being transmitted on the bus. As a master, the Snooper can read up to 8 Modbus variables; it will display one and make the other variables available for other Snoopers to display in snooper mode. As a slave, a Modbus variable may be written to the PD865 by a Modbus master. The PD865 is available with two (2) relays, 4-20 mA analog output, and multi-pump alternation control.Why you should buy:
- Modbus Input
- NEMA 4X/IP65 Front
- Up to 8 Process Variables
- The PD9502 is a low-cost, compact, simple to use 4-20 mA or 0-10 VDC signal generator. It can easily be set for 0-20 mA, 4-20 mA, 0-10 V or 2-10 V ranges. Signal adjustment is made with a one-turn knob. A 15-27 VDC wall plug is provided with the instrument.
The PD655 is a large display, analog input process meter with flow rate/totalizer and batch control capabilities housed in a rugged, impact-resistant, glass-filled, polycarbonate NEMA 4X enclosure. 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 LED display. The meter also provide two isolated 24 V power supplies to drive both the input and output loops. Options include up to 4 relays for alarm or batch control and an isolated 4-20 mA transmitter output.