User's Manual

26 Universal Metering Transponder for kV2c™ Meter User Guide
Functional Description of the UMT-C-KV
Voltage Agility
The UMT-C-KV utilizes a range of voltages that enables the transponder to
automatically use the voltage available to the commercial meter. The UMT-C-KV
supports TWACS communication at any voltage (within the range of
120VAC-480VAC) that the meter form supports.
Voltage Monitoring
The UMT-C-KV obtains 3 phase voltage data every 5 minutes from the kV2c
meter.
When the CCE detects a voltage anomaly it can read and obtain “full meter
accuracy” (by reading all the mapped register values) from the meter via the
UMT-C-KV. These values are obtained using the Meter Map Registers and
reading the pre-defined Meter Data Registers.
EMTR-3-KV Interface (Multiport Capability)
The UMT-C-KV connects to an integrated RF transceiver called the Electric Meter
Transceiver Model 3, referred to as the EMTR-3-KV. The EMTR-3-KV receives
power from the UMT-C-KV and has its own microcontroller, RF circuitry, and
antenna. The EMTR-3-KV receives and stores RF transmissions containing
consumption/status information from Intelligent End Devices (IEDs) such as
water, gas, or propane meters.
The following block diagram summarizes the interfaces and communications
between the system components.