Major tech MT390 - Measurement Specifications (cont.); LOOP Resistance (No Trip) Specs; LINE Resistance Specs; RCD Specifications

Notes
Notes
Notes
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
:
:
[1] Valid for resistance of neutral circuit <20Ω and up to a system phase angle of 30°. Test leads must be
zeroed before testing.
[2] Valid for mains voltage >200V.
: , 650mA
:,x2
:
:
:
:
L- PE (No Trip)
LINE Resistance
L- N
RCD (BSEN 61557-6)
Accuracy at applied test current
Measuring Current: < 15mA
Range of the Voltage Used: 195V a.c – 260V a.c (50,60Hz)(50,60Hz)
Measuring Current 4.0 A
Range of the Voltage Used 195V a.c. – 260V a.c. (50,60Hz)
Rcd Rating (I_n) 10mA, 30mA, 100mA, 300mA, 500mA and 1A.
Test current x1/2, x1 and x5
Form of the Test Current Sine wave form (ac), Pulse wave form (dc)
RCD Form General (G - non-delayed), Selective (S - time-delayed)
Initial Polarity of the Test Current 0°, 180°.
Voltage Range 195V a.c. - 260V a.c. (50Hz,60Hz)
[1]
[1]
[1]
Range(Ω)
0.23 9.99
10.0 99.9
100 999
~
~
~
Resolution(Ω)
0.01
0.1
1
Accuracy
±(5% of reading+6 digits)
Range(Ω)
0.23 – 9.99
10.0 – 99.9
100 – 999
Resolution(Ω)
0.01
0.1
1
Accuracy
(4% of reading+ digits)±4
Current Multiplier
x1/2
x1
x2
X5
Trip Time Accuracy
±(1% of reading+1ms)
±(1% of reading+1 )
±(1% of reading+1 )
±(1% of reading+1 )
ms
ms
ms
6
Multifunction Tester User Manual