RMS-300 The Super RMS; Is a unique remote voltage monitoring, data acquisition, and control device specifically designed for use with battery powered wireless internet repeater sites, or other AC & DC powered remote equipment RMS-300 Has ultra low power consumption and won’t put a drain on your power source. Uses only 1.2 watts. RMS-300 Is powered by DC voltage from 10 to 60 volts. RMS-300 Uses embedded Ethernet technology for internet data acquisition and remote voltage monitoring. RMS-300 Allows you to monitor voltage at your home solar energy system or remote repeater site. RMS-300 Uses the LINUX operating system for versatility, stability, and security. RMS-300 Gives you the situational awareness you need to keep your equipment operational and reliable.
RMS-300 gives you direct hardware control of fans, lights, computers, cameras, modems, radios, etc… No more guessing what your battery levels are. No more wondering if your signal strengths are at an acceptable level. No more long drives to reset a fussy radio.
RMS-300 has four latching power relays for remote control of AC/DC powered equipment. Control of each relay can be done with a web browser. The picture below shows a portion of the RMS-300 relays web interface. In the picture below all relays are in the default “Normally Closed” position.
The relay will be toggled to the “Normally Open” position as shown below.
The relays can also be toggled with RMS-300 relay Scripts. Relay scripts are made up of simple commands that control the relays. Complex relay actions can be performed to control your equipment.
Each voltmeter is capable of measuring up to +/- 100 VDC with 24-bit accuracy. Each voltmeter has its own 24 bit Delta Sigma ADC. The data and power lines for each voltmeter are isolated with a chip-scale air core transformer. This enables each voltmeter to measure different DC voltage sources without any effect on the main board or other voltages.
This technology enables the ability to measure (but not limited to):
Note 1: Voltmeters that have nothing hooked up to them so that the positive and negative inputs are floating may read spurious positive and negative voltage readings, this is normal. You may dampen the voltage reading by sacrificing accuracy using the precision box. Use a number between 2 and 6 to increase or decrease the decimal place.
Note 2: Due to variations in components and the manufacturing process, voltmeter readings may differ slightly from each other and from your hand held DVM. Use the adjustment box to fine tune the voltmeter to display the expected value.
Below is a screen shot of the RMS-300 voltmeter overview page. This page shows at a glance all voltmeter readings and provides a gateway for more voltmeter options. In the screen shot below voltmeter 1 is displaying a positive reading of a 12v battery bank. Voltmeter 2 is in ammeter mode, it is measuring the charge going into the battery bank via a 50 millivolt / 50 amp current shunt (more on using shunts below). Voltmeter 3 is measuring the output of a negative 24 volt power supply. Note: A green bar graph indicates positive voltage, a red bar graph indicates negative voltage. The graphs button takes you to a page displaying voltage or amperage readings in a graph.