70
GMC-I Gossen-Metrawatt GmbH
Power Measurement with the METRA HIT 29S
Intrinsic Error and Frequency Influence
for Power and Energy Measurement with the METRA HIT 29S
* also applies for measurements of DC quantities
Line Monitoring with the METRA
Hit
®
29S
* Settings via drop out trigger
Real-Time Clock
Accuracy
±
1 min/month
Temp. Influence
50 ppm/K
Reference Conditions
Ambient Temp.
+23
°
C
±
2 K
Relative Humidity
40 ... 60%
Frequency of
Measured Quantity
45 ... 65 Hz
Meas.
Func-
tion
Measuring
Range
Switch
Position
Resolution at
Meas. Range
Upper Limit
Overload Capacity
at 0 ... + 40
°
C
mA
A
10 000
Value
Duration
W,
VAr,
VA
1 mW
●
0.1
μ
W
V: 600 V
mA: 0.36 A
A: 10 A
DC
AC
TRMS
sine
V / mA:
continuous
10 A: cont.
12 A: 5 min
16 A: 30 s
10 mW
●
1
μ
W
100 mW
●
10
μ
W
1
W
●
0.1 mW
10
W
●
●
1 mW
100
W
●
●
10 mW
1 kW
●
●
0.1
W
10 kW
●
1
W
Meas. Quantity
Meas. Range
Intrinsic Error (... % of rdg. + ... d)
15 Hz ... 45 Hz
45 Hz ... 65 Hz 65 Hz ... 1 kHz
Active Power
300 mA ... 10 A
1.3+20
1+20 *
3+20
Reactive Power
2.5+20
1.5+20
3+20
Apparent Power
1.2+20
1+20
1.2+20
Power Factor
±
(0.02 ... 1)
2+2
1+2
2+2
¼ hr. Power
1.2+20
1+20
1.3+20
Energy
1.2+2
1+2
1.3+2
Voltage
0.4+30
0.3+30
0.4+30
Current
0.7+30
0.6+30
0.9+30
Fault Type
Meas. Function /
Measuring Range
Resolu-
tion
Intrinsic Error for
Highest Resolution under
Reference Conditions
Pulse
Duration
Drop Out *
300 V
4 V
5% of rdg + 5% range
Sampling
Rate
2 ms
600 V
40 V
10% of rdg + 10% range
Pulse
200 ... 600 V
10 V
50 V
0.5 ... 5
μ
s