Megger INGVAR, User Manual

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58 ZP-BH05E BH0654BE
10 CALIBRATION
10.5 Calibration of scale
factor, ammeter 2
Scale factor, range 0 – 2 A
1]
Press the
V
A
menu option, select ”AMME-
TER 2”
2]
Press .
3]
Select the ”0 – 2 A”-range.
4]
Press .
5]
Press
V
A
to leave the menu.
6]
Connect an AC current source and a refer-
ence AC ammeter to the “AMMETER 2”
input.
7]
Adjust the current from the AC current
source to 1.3 A (2/3 of the full range).
8]
Press the
HOLD
button to activate the Hold-
function.
9]
Press the
MOM
button and hold it down for
a second. The LED in the
HOLD
button should
start flashing.
10]
Press the
SYS
menu option.
11]
While simultaneously pressing the buttons
ESC
and quickly turn the Select/set knob
clockwise until "CALIBRATION" appears on
the display.
12]
Press to confirm.
13]
Choose ”AMMETER 2”
14]
Press .
15]
Turn the Select/set knob until the current
value on the display matches that on the
reference ammeter.
16]
Press to confirm the calibration.
Scale factor, range 0 – 20 A
1]
Press the
V
A
menu option, select ”AMME-
TER 2”
2]
Press .
3]
Select the ”0 – 20 A”-range.
4]
Press .
5]
Press
V
A
to leave the menu.
6]
The rest of the process is just the same as for
the 0 – 2 A-range, follow step 3 to 10. Cali-
brate at 13 A (2/3 of the full range).
10.6 Calibration of scale
factor, voltmeter
Scale factor, range 0 – 0.2 V
1]
Press the V
A
menu option, select ”VOLTME-
TER”
2]
Press .
3]
Select the ”0 – 0.2 V”-range.
4]
Press .
5]
Press
V
A
to leave the menu.
6]
Connect a DC voltage source and a reference
DC voltmeter to the VOLTMETER input.
7]
Adjust the voltage from the DC voltage
source to about 0.133 V (2/3 of the full
range).
8]
Press the
HOLD
button to activate the Hold-
function.
9]
Press the
MOM
button and hold it down for
a second. The LED in the
HOLD
button should
start flashing.
10]
Press the
SYS
menu option.
11]
While simultaneously pressing the buttons
ESC
and quickly turn the Select/set knob
clockwise until "CALIBRATION" appears on
the display.
12]
Press to confirm.
13]
Choose ”VOLTMETER”.
14]
Press .
15]
Turn the Select/set knob until the voltage
value on the display matches that on the
reference ammeter.
16]
Press to confirm the calibration.
Scale factor, ranges 0 – 2 V, 0 – 20 V
and 0 – 200 V
1]
Press the
V
A
menu option, select ”VOLTME-
TER” and
2]
Press .
3]
Select the range that should be calibrated
(0 – 2 V, 0 – 20 V or 0 – 200 V)
4]
Press .
5]
Press
V
A
to leave the menu.
6]
The rest of the process is just the same as for
the 0 – 0.2 V range, follow step 3 to 10. Cali-
brate at about 2/3 of the full range; 1.33 V