MI 3108 EurotestPV
Measurements - Power & energy
89
7.5 Energy
In this function consumed and generated energy can be measured.
See chapter 4.2 Function selection for instructions on
key functionality.
Figure 7.11: Energy menu
Settings and parameters for the Energy measurement
I
MAX
Maximal expected TRMS current during measurement [I
range
, I
range
/10,
I
range
/100]
U
MAX
Maximal expected TRMS voltage during measurement [ 260 V, 500 V]
Connection for the Energy measurements
(See figure 7.2)
Energy measurement procedure
Select
ENERGY
sub-function using the function selector keys and
/
keys.
Connect
the voltage test leads and current clamp to the instrument.
Connect
the voltage test leads and current clamp to the item to be tested (see
figure 7.2).
Press the
TEST
key to start the measurement.
Press the
TEST
key again to stop the measurement.
Store
the result by pressing the
MEM
key (optional).
Figure 7.12: Example of Energy measurement results
Displayed results for the Energy measurements:
E+ ............ consumed energy (load)
E-............. generated energy (source)
P .............. momentary active power during energy measurement
t…………. time
Notes
:
Consider polarity and setup of current clamps (see chapter 4.4.8
Clamp settings
).
I
MAX
and U
MAX
should be set high enough in order to avoid clamping of measured
signals. Clamping will results in wrong energy result.
If measured currents and voltages are lower than 20% of set I
MAX
, U
MAX
the
accuracy will be impaired.
