ZES ZIMMER LMG450, Руководство пользователя

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Z E S ZIMMER Electronic Systems GmbH Chapter 5
83
5.3 Definition of measuring values
Following you find the definitions for all measuring values in the normal operation mode. The
values are divided in two sections:
•
The values from single measuring are measured while one measuring cycle and are
independent from all other measuring cycles.
•
The integrated values are calculated over several cycles.
The following basic definitions are used:
u(t) The instantaneous value if the voltage used for calculation
i(t) The instantaneous value if the current used for calculation
T The time of an integer number of the periods of the synchronisation signal. The integer
factor depends on the chosen measuring cycle time. This time can vary from cycle to
cycle! T is the real measuring time.
The values u(t) and i(t) used for calculation can be the directly in channel n measured values
u
n
(t)/i
n
(t) or calculated from them (depending on the wiring and the selected display channel):
Wiring ‘4+0 Channels’
Display channel u(t) i(t)
1 u
1
(t) i
1
(t)
2 u
2
(t) i
2
(t)
3 u
3
(t) i
3
(t)
4 u
4
(t) i
4
(t)
Wiring ‘3+1 Channels’
Display channel u(t) i(t)
1 u
1
(t) i
1
(t)
2 u
2
(t) i
2
(t)
3 u
3
(t) i
3
(t)
4 u
4
(t) i
4
(t)
Wiring ‘2+2 Channels’
Display channel u(t) i(t)
1 u
1
(t) i
1
(t)
2 u
2
(t) i
2
(t)
3 u
3
(t) i
3
(t)
4 u
4
(t) i
4
(t)