Econ sens3 - Page 3

econ sens3 – operating instructions Page 2 of 4 EN
Englisch
Other technical data is provided in the econ sens3 instrument manual.
Voltage measurement
Three-phase 4-wire system with
nominal voltages up to
277V/480V (+-10%)
Three-phase, 3-wire system, unearthed,
with nominal voltages up to
IT 480V (+-10%)
Overvoltage category
300V CAT 3
Rated surge voltage
4kV
L-N measuring range
0 - 300Vrms
L-L measuring range
0 - 520Vrms
Dissolution
0.1V
Crest factor
2.45
(regarding the
measuring range
Impedance
3MOhm/phase
Power consumption
approx. 0.1VA
Sampling frequency
21.33kHz (50Hz),
25.6 kHz(60Hz)
for each measuring
channel
Frequency of basic vibration
45Hz - 65Hz
Dissolution
0.01Hz
rel. measuring deviation, voltage
0.5%
Current measurement interface
Only for connection to alternating current systems via the delivered
Rogowski coils, "econ coils"!!
Plug connector: RJ12 (6P6C)
Measuring range
depending on the connected coil
Dissolution [A]
0.1
rel. measuring deviation,
current
1% (of the displayed value)*
Crest factor
1.98
Sampling frequency
21,33kHz (50Hz), 25.6 kHz (60Hz)
for each measuring channel
*The rel. measuring deviation depends significantly on the correct
installation of the coils
MODBUS
Function
1 master and max. 31 slaves
Baud rate [Bd]
9600,19200,38400,57600,
115200 (Modbus)
Supported protocols
Modbus RTU
max line length [m]
1200
Ethernet interface
Plug connector: RJ45 (8P8C)
Usable cable types
100-Base-TX (Cat 5)
Supported protocols
Modbus TCP
Transmission rate
100 Mbit fix
Multiple IO
Open collector output (not short-circuit proof)
Switching voltage
max. 30 VDC
Switching current
max. 20 mA DC
Maximum switching frequency
10 Hz
Digital input
min. voltage
2 VDC
max. voltage
30 VDC
min. pulse length
20 ms
Input for potential-free contact
min. pulse length
20 ms
Analogue voltage input
Switching voltage
max. 30 VDC
Connection capacity of the "Multiple I/O" clamping point
Plug connector: pluggable screw terminal MC 1.5/5-ST
rigid, multi-wired or fine-wire conductors without
ferrule [mm²]
0.14
1.5
fine-wire with ferrule, without
plastic collar [mm²]
0.25
1.5
fine-wire with ferrules, with plastic collar
[mm²]
0.25
0.5
fine-wire with TWIN ferrule with
plastic collar [mm²]
0.5
0.5
Min./max. AWG conductor cross-sections
28
16
Stripping length
7mm
Min./max. tightening torque [Nm]
0.22
0.25
Connection capacity of the "MODBUS" clamping point
Plug connector: pluggable screw terminal MC 1.5/5-ST
rigid, multi-wired or fine-wire conductors without
ferrule [mm²]
0.14
1.5
fine-wire with ferrule, without
plastic collar [mm²]
0.25
1.5
fine-wire with ferrule, with
plastic collar [mm²]
0.25
0.5
fine-wire with TWIN ferrule with
plastic collar [mm²]
0.5
0.5
Min./max. AWG conductor cross-sections
28
16
Stripping length
7mm
Min./max. tightening torque [Nm]
0.22
0.25
Connection capacity of the "voltage measurement" clamping point
Plug connector: pluggable screw terminal GMSTBT 2,5HV/3-ST-7,25
rigid, multi-wired or fine-wire conductors
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
Page 3 of 4