Instructions

Technical Data 81
Manual econ sens3 Version 3.0
Voltage measurement
Protection of the measuring voltage (fuse)
10A
Three-phase 4-wire system with nominal voltages up to
277V/400V (+-10%)
Three-phase 3-wire system, unearthed, with nominal
voltages up to
IT 400V (+-10%)
Overvoltage category
300V CAT III
Rated surge voltage
4kV
L-N measuring range
0 to 300Vrms
L-L measuring range
0 to 520Vrms
Dissolution
0.1V
Crest factor
2.45
(with regard to the measuring range)
Impedance
3 MOhm/phase
Power consumption
approx. 0.1VA
Sampling frequency
160 Khz for each measuring channel
Fundamental frequency
45Hz to 65Hz
Dissolution
0.01Hz
Rel. measuring deviation, voltage
0.5%
Connection capacity of the "voltage measurement" clamping point
Plug connector: pluggable GMSTBT 2.5HV/3-ST-7.25 screw terminal
Rigid, stranded, or fine-wire conductor without ferrule [mm²]
0.2
2.5
Fine-wire with ferrule with/without plastic collar [mm²]
0.25
2.5
Fine-wire with TWIN ferrule with plastic collar [mm²]
0.5
1
Min/max AWG conductor cross sections
24
12
Stripping length
8mm
Min/max tightening torque [Nm]
0.5
0.6
Current measurement interface
Only for connection to alternating current systems via the Rogowski coils ("econ coils")
included with delivery
Plug connector: RJ12 (6P6C)
Measuring range
Dependent on the connected coil
Dissolution [A]
0.1
Rel. measuring deviation, current
1% of 8 to 400/3000A, 2% of 3 to 8A (of the displayed value)
Crest factor
1.98
Sampling frequency
10 Khz for each measuring channel
*The rel. measuring deviation depends significantly on the correct installation of the coils.
Information on this is found in Chapter 6.3.