-
set up the ohmic load with the switch settings as in the
table in
;
-
on the front panel turn the current potentiometer to
maximum (turn clockwise as far as it will go);
-
start up the ohmic load and make sure that:
-
the waveforms displayed on the oscilloscope
resemble those in
;
-
the output current is equal to +130Adc ±5% and the
output voltage is equal to +25.2Vdc ±5%; if the output
current reading is not 130A ±5%, adjust the current
using jumpers JP6, JP7 and JP8 (
).
-
switch off the ohmic load.
-
set up the ohmic load with the switch settings as in the
table in
;
-
on the front panel turn the current potentiometer to
maximum (turn clockwise as far as it will go);
-
start up the ohmic load and make sure that:
-
the waveforms displayed on the oscilloscope
resemble those in
;
-
the output current is equal to +150Adc ±5% and the
output voltage is equal to +26Vdc ±5%; if the output
current reading is not 150A ±5%, adjust the current
using jumpers JP6, JP7 and JP8 (
).
-
switch off the ohmic load.
-
set up the dual trace oscilloscope, connecting probe CH1
x 100 to the anode of diode D21 and probe CH2x100 to the
anode of diode D22. Earth connections are both made to
the secondary dissipator;
-
remove the multimeter from the OUT+ and OUT- bump
contacts;
-
set up the static load generator with the switch settings as
in the table in
-
on the front panel position the current potentiometer to the
maximum (turn the knob clockwise as far as it will go) and
switch on the main switch;
-
activate the static load generator and make sure that the
waveforms displayed on the oscilloscope resemble those
in
-
deactivate the static load generator and switch off the
main switch.
With the load status as in
and the current
adjustment potentiometer on maximum, switch on the power
source and leave it in operation until the thermostatic
capsules trigger (machine in alarm status). Check the correct
positioning of the internal wiring and finally re-assemble the
machine.
C) Rated load test for TECNICA 150-186GE:
fig. F
fig. F
fig. 7
D) Rated load test for TECNICA 170:
fig. G
fig. G
fig. 7
E) Checking the secondary diode voltages:
fig. F, G or I;
fig. H;
F) Running time check and closing the machine
fig. F or G
- 15 -
SETTINGS:
PROBE
PROBE
TIME TOLLERANCES
±20%.
AMPLITUDE ON CH1
IS
AMPLITUDE CH2
IS
-
CH1 x100
- 100V/Div;
-
CH2 x10;
- 2V/Div;
- 5 sec/Div.
-
320V ±10%.
-
5V ±10%.
VERIFY THAT
µ
FIGURE E
1
2
2
2
3
2
4
2
5
2
6
1
SETTINGS:
PROBE
PROBE
TIME TOLLERANCES
±20%.
:
AMPLITUDE ON
CH1 IS
AMPLITUDE ON
CH2 IS
-
CH1 x100
- 100V/Div;
-
CH2 x10;
- 5V/Div;
- 5 sec/Div.
-
320V ±10%;
-
8V ±10%.
VERIFY THAT
µ
FIGURE F
Position switch
Number switch
1
3
2
3
3
3
4
2
5
2
6
2
SETTINGS:
PROBE
TIME TOLLERANCES
±20%.
AMPLITUDE ON
CH1 IS
AMPLITUDE ON
CH2 IS
-
CH1 x100
- 100V/Div;
- SONDA CH2 x10;
- 5V/Div;
- 5 sec/Div.
-
320V ±10%;
-
8V ±10%.
VERIFY THAT
µ
FIGURE G
1
3
2
3
3
3
4
3
5
2
6
1
SETTINGS:
PROBE
PROBE
TIME TOLLERANCES
±20%.
:
-
CH1 x100
- 50V/Div;
-
CH2 x100;
- 50V/Div;
- 5 sec/Div.
- REVERSE
AMPLIDUTE ON CH1
AND CH2 DOES NOT
EXCEED 250V.
VERIFY THAT
µ
FIGURE H
TECNICA 150-152-170-168GE
Position number
Position number
Switch number
Switch number
