RMU5: Full Features List

The basic RMU5 has the following feature set:

Four galvanically isolated, bi-polar analog input channels configurable for ±158mV, ±7.5V, and ±175V
Each channel can measure DC and AC RMS voltages (i.e. induced AC measurements)
>70dB line AC rejection when measuring DC signals provides stable DC measurements
All analog channels are high impedance to allow direct connection to reference half cells
All analog channels are 4-20mA transducer input capable
Multi-stage surge protection and galvanic isolation provide maximum lightning immunity
Programmable alarm window capability on all input channels
One digital input capable of dry contact or voltage input (optically isolated)
One switched digital interrupter relay output with 750mA sinking capability
Integral health monitoring of internal voltages and temperature
20x4 character wide-temperature range LCD screen for local status monitoring with no additional equipment
Two push button switches to allow scrolling of LCD information screens
Bright, dual color status LED indicators
NEMA 4X, IEC529 Type IP65 enclosure for harsh environments
Enclosure is equipped with pad-lockable quick release latches
Operation in -35°C to +60°C (-31 to +140°F) ambient temperatures
24VAC/DC main power input, used with external Class 2 power transformer or external DC supply
Integral battery backup allowing up to 8 hours of operation during main power fail conditions
High performance 200MHz ARM9 processing platform with 64MB RAM and 32MB Flash
Windows Embedded CE 6.0 operating system to provide communications stacks
10/100 Base-T Ethernet for communications backhaul over various data networks
RS-485 MODBUS interface port
USB peripheral device for configuration from a PC
USB host for additional USB flash drive or communications expansion
Easy configuration through a PC-based graphical user interface
Scheduler for future rectifier interruption cycles
Scheduler for input data logging and data transmission to central host

The base product can currently be augmented through the following optional components:

Optional GPS time scynchronized rectifier interruption
Extended temperature backup battery for -40 to +80°C (-40 to +176°F)
Internal Flash drive for datalogging storage (1GB or 8GB, factory installed)
ISAT compact satellite transceiver (RMU5-ISAT)
GSM Cellular tranceiver with integral antenna (RMU5-G)
RS-232 interface board for MODBUS RS-232 applications