7
®
The instrument is connected to mains with a power
cable in (10) and is switched on by (8). The display
will briefly indicate the firmware version, e.g.
r 3.0.
When the instrument is switched on, the display
shows the voltage across the load (range:
V
).
Use the
Function
switch (3) to reach the other
functions. A short push switches from left to right
(
V
➞
A
➞
VA
etc.). Press the button a little longer
(about 1 second) to switch in the opposite direction.
Generally, you work with low voltages on the front
panel and mains voltages at the rear panel.
For low voltage work, connect the energy consuming
device to the output terminals (7) on the instrument’s
front
panel (marked
Load
), and connect the po-
wer supply to the corresponding input terminals (6)
(labeled
Supply
). Low voltage measurements can be
performed in the range from DC to 1000 Hz.
Mains powered units are connected to the mains
output terminals (12) on the instrument’s rear panel
(marked
Load
) and a separate power cord is con-
nected to (11) on the rear panel (labeled
Supply
). For
measurements on the rear panel, the voltage must
be higher than 30 V and the frequency between 45
and 65 Hz.
Switching between front or rear panel measurements
is automatic; the rear panel is active if connected to
supply voltage and load – irrespective of any con-
nections on the front panel.
Two separate times are registered for the two energy
ranges
Ws
and
Wh
. The function is indicated by
Ws
and
time
simultaneously or by
Wh
and
time
simul-
taneously. The energy - and the corresponding time
– is reset by pressing the
Reset
button (4). Resetting
does not affect other measurements.
If the measuring range is exceeded, the display will
flash. Phase angle can only be displayed if voltage,
current and frequency are all within specifications.
Otherwise, the display will show e.g.
Lo A
to show
that the current is too low to calculate the phase
angle.
Power supply: Mains 230 V AC ± 10%. 50 Hz. Dimensions: Height incl. handle 245 mm depth 110 mm width
320 mm. Weight: 3.40 kg.
Technical specifications:
Range
Resolution
Accuracy
Frequency
Ri
Front panel:
Voltage
Current
0-240 V DC/AC
0-10A DC/AC
0.1/1V
0.01/0.1A
+/-(2,5% + 1 of r 1 digit)
+/-(2,5% + 1 of r 1 digit)
DC – 1000 Hz
DC – 1000 Hz
1 M
Ω
0.047
Ω
Rear panel:
Voltage
Current
30-240V
0-10 A
1V
0.01/0.1A
+/-(2,5% + 1 of r 1 digit)
+/-(2,5% + 1 of r 1 digit)
45-65 Hz
45-65 Hz
Apparent power
(VA)
0-2400VA
0.1/1VA
+/-(5% + 1 of r 1 digit)
Phase angle (
ϕ
)
0° - +/- 90°
1°
+/-(5% + of r 1 digit)
3-1000 Hz
Active power
0-2400W
0.1/1W
+/-(5% + 1 of r 1 digit)
Energy
consumption
0.1-9999 kWs/kWh
0.1/1 kWs/kWh
+/-(5% + 1 of r 1 digit)
Time sec. (s) or (h)
0.1 – 9999 ·10
3
s/h
0.1/1 s/h
+/-(0,2% + 1 of r 1 digit)
Frequency
3-1000 Hz
