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Alpha Meter (150-Series)
Elster has designed the A1800 ALPHA system-ready meter based on extensive metering technology and global metering standards knowledge.
Advanced Features and Functions
- Programmable thresholds for TrueQ monitors
- Optional 1 MB extended memory
- Transformer and line loss compensation
- Up to 8 channels of load profile data
- Up to 32 channels of instrumentation profile data
- Optional auxiliary power supply
Technical Specifications
- IEC 62053 accuracy Class 0.2 % and 0.5 %
- UV-protected, polycarbonate, IP54 enclosure
- Wide operating ranges:
- Voltage: 46 V to 498 V
- Current rating: 1(10)A, 5(10)A, optional 5(20)A
- Temperature: -40 °C to +55 °C (ambient)
- Energy plus demand for kWh, kVARh, and kVAh
- Four-quadrant metering for export import
- Up to 4 tariffs per day for 4 day types
- Up to 12 seasons
- 256 KB nonvolatile memory
- Easily replaceable battery located under the terminal cover
- Precision internal clock with backup timekeeping provided by super capacitor and long-life battery
- 16-segment character LCD with optional backlight
- Windows-based software with multilanguage support
- Optional Read without Power feature ensures the meter can be read when it is not externally powered
System-ready meter
- Communication port with 2 interfaces on the main circuit board
- 4 pulse output relays on main circuit board
- Available with RS-232, RS-485, and future communication options developed by Elster and third parties
- Optional second, independent communication port
- Optical port available in the ANSI or IEC standard physical configuration
- ANSI C12.18, C12.19, and C12.21 open protocol support
- Optional DNP protocol support
- Optional Modbus support
- Optional DLMS/COSEM open protocol support
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