
Contents
1
. Safety warnings .............................................................................................
1
2
. Features ..........................................................................................................
3
3
. Specification ..................................................................................................
4
4
. Instrument layout ...........................................................................................
6
5
. Measurement principle ...................................................................................
7
6
. Getting started .................................................................................................
9
7
. Measuring method ......................................................................................
10
7
-
1
Normal measurement of current ..........................................................
11
7
-
2
Measurement of balance leakage current .........................................
11
7
-
3
Measurement of earth resistance ........................................................
12
8
. Other functions ............................................................................................
13
8
-
1
Auto power-off function ........................................................................
13
8
-
2
Data hold function .................................................................................
13
8
-
3
Buzzer function ......................................................................................
13
8
-
4
Backlight function ...................................................................................
13
8
-
5
Memory function .....................................................................................
14
8
-
6
Bluetooth Communication Function (KEW
4202
only) .......................
15
9
. Battery replacement ....................................................................................
17
10
. Pairing with Bluetooth compatible devices (KEW
4202
) .........................
18
11
. Features of KEW Smart (KEW
4202
) .........................................................
19
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