Power Measurement (W) - Gossen MetraWatt Metraclip 72 Manual De Instrucciones

The field of application is limited to industrial frequencies
(15 Hz... 70 Hz)
Implementation
This function is accessible in AC current measurement only,
after selection of the MIN/MAX mode.
Action
Press
the yellow
key
Press on
HOLD key
then press
successively
the yellow
key
Short pressure Return to values
on the
MIN/MAX key
Characteristics
- Accuracy: 5% +0.5 A
- Capture time: 10 periods of the signal frequency (200 ms
at 50 Hz)
- Range for use: ≥ 5 A peak for the first period of the signal

3.8 Power measurement (W)

1. Connect the measurement leads to the instrument's
terminals, complying with the polarities indicated: red lead
on the "+" terminal and black lead on the "COM" terminal.
2. Set the rotary switch to position "W".
3. Connect the clamp on the system selected for power
measurement, complying with the following instructions:
- Connect the measurement cables for voltage
measurement, red cable on phase, black cable on neutral.
- Clamp the conductor carrying the current to be measured,
check for proper closing of the jaws and for foreign bodies
in the gap.
The " " arrow on the jaws, must be directed in the
direction of power circulation from the source to the load.
In which case:
- the "+" sign corresponds to power consumed by the
load.
- the "-" sign corresponds to power supplied by the load.
Specific reference conditions
PF = 1; I ≥ 2 A; U ≥ 10 V
Display
0.5 P then the value
for rms
corresponding
out F
1P-2,5P-5P-10P-0,5P
↑
with each time
the rms value
corresponding
alternately
MIN, MAX or PEAK
34
Comments
Enter the function
Signal frequency
< 15 Hz or > 70 Hz
Consultation of values
rms (computed on
of consecutive periods )
Exit from the function
return to MIN/MAX mode