Beha Amprobe GT-800 PRO KITVDE-tester 4472081 Manuel D’Utilisation

GT-600/GT-800 Instruction Manual 

28 

 

 

Touch Current Test (I

T

) 

 

The touch current test measures the leakage current from exposed conductive 
parts of tested appliance via test probe PROBE 2 and internal resistance of 
approx. 2 k

 to earth. The device under test is not necessary to be connected to 

the test/mains socket of the GT-600/GT-800, it can be also externally powered. 
The measurement is carried out by the direct method. 
 

 

Warning

 

  NEVER carry out this test unless you have first carried out a thorough 

visual inspection, followed by a test of the protective bonding resistance 
(for class I appliances), and then a test of insulation resistance. You must 
verify that these tests have passed before engaging the touch current 
test. 

 

 

Caution

 

  Live test! The appliance will be energized at mains voltage. For this 

purpose, switch on the appliance. Appliances driven by motors or 
equipped with heating units may present a danger for the person 
testing (comply with the appliance instruction manual!). Ensure that the 
appliance is in a safe condition to run and secure it prior to testing. 

 
Remarks: 
  Connect the appliance and the test lead according to the figure 18 or 19. 
  For class I appliances apply the test probe to any metal part not connected to 

PE terminal. 

  For class II appliances apply the test probe to any exposed metalwork on the 

appliance. 

  If the touch current is higher than 2.00 mA for 2 seconds, the test will be 

interrupted automatically and “RANGE OVERLOAD” message will be 
displayed. 

  The measurement must be performed in both positions of the mains plug, 

the greater of the two values obtained must be used. 
 

 

 
Figure 18: Touch current test connections at appliance class I