Econ sens3 User Manual

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.

Econ sens3 Specifications

General

Brand	Econ
Model	sens3
Category	Measuring Instruments
Language	English