Control unit for analog sensor
M-1000 Migatron

The M-1000 analog controller is a multipurpose dual sensor controller with a wide range of uses in the process control field. It was designed to work with any of Migatron's analog output sensors as well as a temperature probe for temperature compensation. Its easy program modes allow instruction entry and review of previously programmed values. It accepts a standard 0-20 mA, 4-20 mA, 0-5V, 2-10V, 0-10V analog input. The microcontroller digitally scales the inputs with near and far scaling points, then this information is displayed on a 4 1/2 digit digital display. This attribute is also contained in an optional second channel input for added expandability. The controller can also supply 24 volts up to 110 mA to the sensors. The outputs consist of four solid state relays for use as outside limit monitors. These outputs can be programmed as either normally open or normally closed and can switch 2-130 VAC or VDC 100 mA DC or 50 mA AC continuous.

A RS485 serial communications port is also supplied. Communication can take place for baud rates of 300, 1200, 2400, 4800, and 9600. Each controller can be configured to transmit standard ASCII code up to a maximum distance of 10,000 feet. The M-1000 samples its inputs at a rate of 25 times per second, and includes auto zeroing. Its analog to digital converter is accurate to +- .05 mV and its converter is also rated as having a drift rating of 50 ppm per degree Celsius. The M-1000 is powered by 120 VAC, 8 watts and all of the inputs and outputs are tightly secured with reliable screw clamp cable connectors.