Fluke PM6681 Outdoor Timer User Manual


 
Measurement
Function Block
The measurement function block converts
the input signals into an internal data for
-
mat that is available for formatting into
GPIB bus data. The measurement func
-
tion is divided into three different blocks:
INPut, SENSe and CALCulate. See
Figure 5-3.
n
INPut
The INPut block performs all the signal
conditioning of the input signal before it
is converted into data by the SENSe
block. The INPut block includes cou
-
pling, impedance, filtering etc.
n
SENSe
The SENSe block converts the signals
into internal data that can be processed by
the CALCulate block. The SENSe com
-
mands control various characteristics of
the measurement and acquisition process.
These include: gate time, measurement
function, resolution, etc.
n
CALCulate
The CALCulate block performs all the
necessary calculations to get the required
data. These calculations include: calibra-
tion, statistics, mathematics, etc.
Instrument Model
Measurement Function Block 5-3
10MHz
clock
A
B
C
E
÷2
1
2
3
4
5
6
7
GPIB
INPut4
SENSe
CALCulate
MEMoryTRIGger
OUTPut
FORMat
DISPlay
INPut2
INPut1
Figure 5-2 CNT-8X Measurement model. Note that Input B ( channel 2 ) is not
available on PM6685