CIRCUTOR AR6 Series - Manual (Page 14)

AR6 portable network analyzer
Page 14 of 69 User Manual
4.4 CURRENT INPUTS
Inputs for current measurement I1 I2 I3 IN Leakage
Input voltage 0…2 V
RMS
Measurement margin from 1 to 120% of In
Primary current measurement In Depends on clamp
Admissible overload 3 In
Consumption
≤0.0004 VA
Accuracy of the instrument
(excluding the clamp) 0.5%
± 1 digit (we must add the margin of error of
the clamp used to this number)
Special features
Earth leakage current measurement via low-
pass filter (option to activate or deactivate)
Input impedance
10 kΩ
4.5 CURRENT CLAMPS
The AR6 can use single-scale or multi-scale clamps. When using single-scale clamps the
instrument automatically recognises the clamps connected to it; in the case of multi-scale
clamps, when the clamps are connected a menu pops up to configure the current transformer’s
ratio (see current clamp configuration).
When using E-FLEX 54 cm multi-scale clamps the scales are as indicated in
Table 4-1
Table 4-1.- E-FLEX 54 cm clamps
Clamp
TURNDOWN
RATIO
LED
Range (2.5...100%)
E-FLEX 54 cm (See note 1)
200 A blue 5…200 A
2,000 A red 50...2,000 A
20,000 A blue + red 500...20,000 A
Note 1: E-FLEX clamps have built-in LEDS to indicate the scale at which they are working.
When they work at a low scale the blue LED lights up, when they work at a medium scale the
red LED lights up and when they work at a high scale both LED light up.
4.6 VOLTAGE INPUTS
Inputs for voltage measurement U1 U2 U3 UN U
EARTH
Input margin Unom= 10 to 800 V
RMS
phase-neutral
Measured accuracy 0.5%
± 1 digit
Number of inputs 5
Peak voltage 2,500 Vpeak
Bandwidth 3.2 kHz
Input impedance
10 MΩ