Multi-Tech Systems 7500 - Manual (Page 55)

ION 7500 / ION 7600 User’s Guide Data Logging Setup
Chapter 3 - Default Meter Functionality Page 55
Historic Data Logging
Three data recorders are used to record “standard” power system quantities, such
as phase current, phase voltage and power factor. These recorders are labeled Hist
Mean Log, Hist High Log, and Hist Low Log. By default, they log the following ION
output register values:
Loss Log
The Loss Log recorder is configured to record loss values. By default, it logs the
following ION parameters:
Harmonics Logging
Two recorders provide various harmonics logs, including K-factor and Total
Harmonics Distortion (THD). These recorders are labeled Harm Mean Log and
Harm High Log. By default, they log the following ION output register values:
Hist Mean Log Hist High Log Hist Low Log
Vll ab mean I avg mean Vll ab high I avg high Vll ab low I avg low
Vll bc mean I 4 mean Vll bc high I 4 high Vll bc low I 4 low
Vll ca mean kW tot mean Vll ca high kW tot high Vll ca low kW tot low
Vll avg mean kVAR tot mean Vll avg high kVAR tot high Vll avg low kVAR tot low
V unbal mean kVA tot mean V unbal high kVA tot high V unbal low kVA tot low
Ia mean PF lag mean Ia high PF lag high Ia low PF lag low
Ib mean PF lead mean Ib high PF lead high Ib low PF lead low
Ic mean Freq mean Ic high Freq high Ic low Freq low
Parameter Description
MU Ia^2h int Phase A interval current squared hours
MU Ib^2h int Phase B interval current squared hours
MU Ic^2h int Phase C interval current squared hours
MU Vll ab^2h int Phase A interval voltage Line-to-Line squared hours
MU Vll bc^2h int Phase B interval voltage Line-to-Line squared hours
MU Vll ca^2h int Phase C interval voltage Line-to-Line squared hours
Harm Mean Log Harm High Log
V1 THD mean I1 K Fac mean V1 THD high I1 K Fac high
V2 THD mean I2 K Fac mean V2 THD high I2 K Fac high
V3 THD mean I3 K Fac mean V3 THD high I3 K Fac high
I1 THD mean I1 THD high
I2 THD mean I2 THD high
I3 THD mean I3 THD high