1. What is the difference between the modes?
The Elspec G4400 series of meters includes Elspec G4410, Elspec G4420 and Elspec G4430. The catalog should be consulted for an accurate comparison. The major differences are related to:
Sampling rate
Logging capabilities
Connectivity and Expansions
Time stamping
Sampling rate
Voltage sampling rate for the different models is as follows:
Elspec G4410: 256 samples per cycle
Elspec G4420: 512 samples per cycle
Elspec G4430: 1024 samples per cycle
The sampling rate for Current on all models is 256 samples per cycle.
Logging Capabilities
The logging capabilities are determined by memory size and firmware configuration. For example, a 2GB memory may be large enough to store 2 months of data at a particular site, but the firmware has been configured to delete data older than a month.
Elspec G4410: 1 day of storage
Elspec G4420: 1 month of storage
Elspec G4430: no time limit, storage is limited only by the memory size. At 8GB, the Elspec G4430 can typically store a year of data on board.
The PQSCADA server based software collects data from the instruments at a default frequency of once every 5 minutes. The storage capability for each meter on the server is limited only by server storage space and Microsoft SQL version.
Connectivity and Expansions
The Elspec G4410 does NOT have the following connectivity and expansions: 1 LAN only, no PoE, USB, CF.
Time Stamping
The Elspec G4410 does not provide timestamps for EN50160 violations, since this model is typically installed in large numbers across an installation. This model provides statistical compliance information.
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