GU_TRIDENT_V_1_20_EN
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7.4
MEASUREMENT INPUTS & ACCURACIES
The accuracies are given at 23°C.
All a.c. measurements are True RMS.
In the following tables, the absolute error is expressed in relation to the measurement range and the relative
error in relation to the measured value.
The total measurement error is equal to the sum of these 2 errors.
TRIDENT 1U
Measurement
range
Display
resolution
(3)
Error / measurement range +
relative error / measured value
voltage (slow variations)
from 2 V to 400 V
0,1 V
+/- (0,1% + 0,1%)
voltage (1s mean).
from 2 V to 400 V
0,1 V
+/- (0,1% + 0,2%)
voltage (rapid variations)
from 2 V to 400 V
0,1 V
+/- (0,2% + 0,2%)
Frequency (10' mean)
from 45 to 65 Hz
0,1 Hz
0,1 Hz
TRIDENT 1U 1I
Measurement
range
Display
resolution
(3)
Error / measurement range +
relative error / measured value
voltage (slow variations)
from 2V 400V
0,1 V
+/- (0,1% + 0,1%)
voltage (1s mean).
from 2 V to 400 V
0,1 V
+/- (0,1% + 0,2%)
voltage (rapid variations)
from 2 V to 400 V
0,1 V
+/- (0,2% + 0,2%)
Current
from 0,025 to 5 V
10 mA
+/- (0,2% + 0,2%)
Overall active power (cosine
= 1)
3 x V x I
1W
+/- (0,3 + 0,3%)
Frequency (10' mean)
from 45 to 65 Hz
0,1 Hz
0,1 Hz
TRIDENT 3U3I /I
Measurement
range
Display
resolution
Error / mesurement range +
relative error / measured value
voltages (slow variations)
from 2 V to 400 V
0,1 V
+/- (0,1% + 0,1%)
Line voltages (slow variations)
from 3 V to 480 V
0,1 V
+/- (0,1% + 0,1%)
voltages (1s mean).
from 2 V to 400 V
0,1 V
+/- (0,1% + 0,2%)
Line voltages (1s. mean)
from 3 V to 480 V
0,1 V
+/- (0,1% + 0,2%)
voltages (rapid variations)
from 2 V to 400 V
0,1 V
+/- (0,2% + 0,2%)
Line voltages (rapid variations)
from 3 V to 480 V
0,1 V
+/- (0,2% + 0,2%)
Currents
(1)
from 0,015 to 6 A
10 mA
+/- (0,1% + 0,1%)
Overall active power (cosine
= 1) 3 x V x I
1W
+/- (0,1 + 0,3%)
Frequency (means 10')
(2)
from 45 to 65 Hz
0,1 Hz
0,1 Hz
(1) : TRIDENT 3U3I/I accepts 1A current clamps. In this case the stated accuracy is not guaranteed.
(2) : mesured on V1, stated accuracy if V1 >10V.
