Page 100 of 130
Operating instructions
4point light 10W (V 4.58)
Status (0-3)
Provider name
Provider ID
1
"T-Mobile D"
„26201“
1
"Vodafone D2“
„26202“
1
"E-Plus"
„26203“
2
"o2 - DE"
„26207“
Tab. 8.83: Structure of the provider list
Number
Status
0
unknown
1
available
2
current
3
forbidden
Tab. 8.84: Status
1. Navigation through the list with [
] and [
]
2. Exit the list with [RET] or [ESC] and switch to the settings menu to enter the
provider ID´s and select an individual provider.
➔
8.10.2 Communication, page 91
8.11.2 Calibration
The
most important factors
affecting the
accuracy
of the instrument are:
▪
the
offset voltage
and
▪
the
internal phase shift
between current and voltage.
For the
accurate determination of these parameters
the instrument has a
calibration
mode.
The
determined
values are used for the correction
of the actually measured
voltages.
Offset voltage
is the voltage which the instrument measures if M and N are shorted. An
ideal instrument then should read exactly 0. By intentionally shorting M and N the
instrument can determine the offset voltage and subtract this voltage for all subsequent
measures.
There are
two possibilities of calibration
:
▪
Offset calibration
▪
Full calibration
