Operating instruction and technical description
EV tester type 1 and type 2 - 2.0
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Walther-Werke Ferdinand Walther GmbH
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Attention:
When measuring the built-in resistors,
the switch "simulation power values" (top right) must not be switched
on. Otherwise this may lead to incorrect measurements, since several resistors are simultaneously operative.
Photo: Resistance measurement with charging cable 20 A
With inserted plug, the nominal value, depending on the allowed cross section of the charging cable
should be indicated (see table).
Switch off the measuring device after successful measurement (turn rotary switch to "OFF").
If other or no measured values are indicated, the plug has to be checked.
Attention:
The integrated measuring device is for resistance measuring only and should therefore only be switched on
shortly for measuring the resistances (will result in a longer battery durability). Under no circumstances leave
it switched on during other test procedures with applied voltage.
4.4 Simulation of resistors' ampacity inside plug type 2
Acc. to IEC 61851-1, there is a resistor available inside the type 2 plug which shows the ampacity.
This resistor can be simulated by means of the measuring line provided with the charging device.
Coding resistance inside charging plug and charging coupler (type 2)
Power [A]
Resistance [Ohm] (rated value) Cross section [mm²]
13
1500
1,5
20
680
2,5
32
220
6
63
100
16
Table : Ampacity with corresponding coding resistance and cable cross section
