KYORITSU 4120A - Manual (Page 7)

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3.2 Test Lead
The instrument is supplied with Model 7125 lead at socket outlets and Model
7121 distribution board lead.
(1) Model 7125
(2) Model 7121 (Included as standard equipment for M-4118A and 4120A. Optional for M-4116A.)
3.3 Features
3.3-1 Test Range (Function):
Note:
● *D-LOK=Automatic device (RCD) lock
● D-LOK dose not operate on the Loop-2000Ω.
● Mains voltage with which D-LOK operates is as shown in the table below.
3.3-2 Applied Standards:
Instrument operation: IEC /EN 61557-1, IEC61557-3
Safety: IEC/EN 61010-1 CATⅢ(300V) - instrument
IEC/EN 61010-2-31 CATⅢ(300V) - test lead
Protection degree: IEC60529 (IP 54)
Model
D-LOK Circuit *
Loop 0-19.99Ω/
0-199.9Ω/0-1999Ω
PSC 0-199.9A/
0-1999A/ 0-4.00kA
M-4120A
○
○
○
M-4118A
×
○
○
M-4116A
Ч
○
Ч
Black-Neutral
Red-Phase
Green-Earth
Fig.4
Range
Loop200Ω/PSC200A
Loop20Ω/PSC2000A, 20kA
D-LOK Operating Voltage
190∼253V
205∼253V