HT instruments SOLAR300N - Manual (Page 47)

SOLAR300 - SOLAR300N
EN - 45
5.3.1.3. Setting full scale of clamps
CAUTION
 The value of this parameter must be always equal to the full scale of the
current clamps used to take the measurement. In case multi-scale clamps
are used, the value of this parameter must be equal to the scale selected on
the clamps
 If the type of system set is PV-1 or PV-3, MPP-1, MPP-3 it will be necessary
to set the full scale both for the DC clamps and for the AC clamps
1. By means of the up and down arrow keys, move the cursor on item “AC[A] clamps”
and “DC[A] clamps” for PV systems or on “FS Clamps[A]” for NPV systems, so that it
is highlighted in blue.
2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select the desired full
scale
CAUTION
 In case of STD clamps any value can be set by using F3 or F4 keys
(alternatively touch MOD(+) o MOD(-)). In case of FLEX clamp only 300A or
3000A options are possible. In case of MPP-1 or MPP-3 system, for FLEX
clamps only the following values shall be avaibale: 100A and 1000A.
 In case of STD clamp measured values of current < 0.1%FS are zeroed
 In case FLEX clamps with a capacity of 100A or 300A are used, current values <
1A are zeroed
 In case FLEX clamps with a capacity of 1000A or 3000A are used, current
values < 5A are zeroed
3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and
confirm by “Ok”. This selected parameter will be present also after turning off the
meter.
4. Pressing ESC key (or the smart icon ) to quit without saving any modification
5.3.1.4. Setting VT ratio
For NPV systems the meter can be interfaced also with step-down transformers in the
equipment under test. It can display the value of he voltages present on the primary
winding of these transformers. To do this it will be necessary to set the value of the
transformers’ windings ratio.
1. Move the cursor using arrows keys on field relative to “VT Ratio” , marked it with blue
background.
2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) for selection of desired value
from 1 to 3000. Leave the default value “1” if no voltage transformer is present on
installation.
3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and
confirm by “Ok”. This selected parameter will be present also after turning off the
meter.
4. Press ESC key (or the smart icon ) to to quit without saving any modification.