INTELLIGENT HAND HELD TERMINAL
TheSigma Intelligent Hand Held Terminal (IHT) provides full load control and three-phase
instrumentation on any Froment Sigma-equipped load bank.
The IHT is housed in a tough enclosure providing IP65 protection. It can be operated
up to 1km from the load bank, and simple plug/socket connections allow a single
controller to operate multiple load banks. Multi language support includes English,
French, German, Spanish and Italian.
Load control
Comprehensive load control is provided for any combination of Resistive, Inductive
or Capacitive load banks, with a load step resolution down to 0.1 kW/kVA.
The IHT automatically detects supply voltage, frequency, phase and phase rotation,
and provides comprehensive overload and stall protection based on the rating of
the supply under test.
Load can be controlled manually, and automatic load sequences can be programmed
with built-in help for both first-time user and experienced operators.
Instrumentation
Instrumentation measurements are made using high accuracy voltage and current transformers
located within the load bank. The information is processed digitally with high speed
sampling of the raw data and displayed in three 'pages' on the graphical display.
This provides full three-phase true rms measurements with high update rates. The
system provides accuracy better than class 1, with traceable calibration.
An integrated printout facility allows data to be recorded, and an RS 232 port provides
connection for load control and instrumentation.
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