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1742/1746/1748
Users Manual
54
Electrical Specifications
Power Supply
Voltage Range
using safety plug input with power
from the measurement circuit..........................100 V to 500 V
using MA-C8 with standard
power cord (IEC 60320 C7) ............................100 V to 240 V
Power consumption.............................................Maximum 50 VA (maximum 15 VA when powered using MA-C8 adapter)
Maximum no-load consumption ..........................<0.3 W only when powered using IEC 60320 input
Efficiency.............................................................
≥
68.2 % (in accordance with energy efficiency regulations)
Mains Frequency.................................................50/60 Hz
±
15 %
Battery Power......................................................Li-ion 3.7 V, 9.25 Wh, customer-replaceable
On-Battery Runtime ............................................Typically 4 hr
Charging Time.....................................................<6 hr
Voltage Inputs
Number of Inputs.................................................4 (3 phases referenced to neutral)
Maximum Input Voltage ......................................1000 V
rms
, CF 1.7
Input Impedance .................................................10 M
Ω
Bandwidth ...........................................................42.5 Hz to 3.5 kHz
Scaling ................................................................1:1 and variable
Current Inputs
Number of Inputs.................................................4 (3 phases and neutral), mode selected automatically for attached sensor
Input Voltage
Clamp..............................................................500 mV
rms
/ 50 mV
rms
; CF 2.8
Rogowski Coil .................................................150 mV
rms
/ 15 mV
rms
at 50 Hz, 180 mV
rms
/ 18 mV
rms
at 60 Hz; CF 4; all at nominal probe range
Range..................................................................1 A to 150 A / 10 A to 1500 A with thin flexible current probe i17XX-flex1500 IP 24 in
3 A to 300 A / 30 A to 3000 A with thin flexible current probe i17XX-flex3000 IP 24 in
6 A to 600 A / 60 A to 6000 A with thin flexible current probe i17XX-flex6000 IP 36 in
40 mA to 4 A / 0.4 A to 40 A with 40 A clamp i40s-EL
Bandwidth ...........................................................42.5 Hz to 3.5 kHz
Scaling ................................................................1:1 and variable