Alstom iSTAT M355, Manual

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User Manual M3x5/EN M/B
iSTAT M3x5
Page 43
10.4.13 Maximum Demand Reset mode
Defines how and when the stored Maximum Demand values will be reset.
The reset can either be Manual (see section 10.18) or in Automatic mode (daily, weekly,
monthly or yearly reset)
In Automatic mode the resets are performed at the beginning of the defined period at
midnight.

Daily – every day at 00:00

Weekly – every Monday at 00:00

Monthly – the first day of the month at 00:00

Yearly – the first day of the year (1
st
January) at 00:00
10.4.14 Min/Max Reset mode (KD)
Defines how and when the stored Min/Max values will be reset.
The reset can either be Manual (see section 10.18) or in Automatic mode (daily, weekly,
monthly or yearly reset)
In Automatic mode the resets are performed at the beginning of the defined period at
midnight.

Daily – every day at 00:00

Weekly – every Monday at 00:00

Monthly – the first day of the month at 00:00

Yearly – the first day of the year (1
st
January) at 00:00
(KD) Main menu  Settings  General  Min/Max reset mode
10.4.15 Starting Current for PF and PA (mA)
At all measuring inputs noise is usually present. It usually has consistent amplitude and its
influence on the accuracy of the measurement increases as the amplitude of the signal to be
measured decreases. It is also present when measuring signals are not connected and can
give false readings for all subsequent calculations.
By setting a starting current for Total Power Factor and Power Angle, a minimum level is
defined where the measurements and calculations commence, reducing the effect of any
input noise.
The value for starting current should be set according to conditions in the system (level of
noise, random current fluctuation…).
10.4.16 Starting current for all powers (mA)
By setting a Minimum Starting Current, a level is defined where the measurements of
Current and calculation of all powers commence, reducing the effect of any input noise.
The value for starting current should be set according to conditions in the system (level of
noise, random current fluctuation…).