Operating Manual Isotest II T / II RT
Page 1
C O N T E N T S
1
Introduction .................................................................................................. 2
1.1
Safety Instructions ............................................................................... 2
1.2
General Characteristics ....................................................................... 4
1.3
First Steps............................................................................................ 5
1.3.1 Setting the Test High Voltage ............................................................ 6
1.3.2 Setting the Display Sensitivity............................................................ 7
2
Acoustic Signals During the Test Procedure ................................................ 8
2.1
Flaw (Pore) .......................................................................................... 8
2.2
Exhaustive Discharge Protection of the Battery ................................... 8
2.3
Lack of Earth Connection..................................................................... 8
2.4
Load Exerted by the Test Specimen .................................................... 9
3
Maintenance................................................................................................. 10
A
Annex ........................................................................................................... 11
A.1 Technical Data ..................................................................................... 11
A.1.1 Power Supply..................................................................................... 11
A.1.2 Test Voltage....................................................................................... 11
A.1.3 Dimensions and Weights ................................................................... 11
B
Checklist....................................................................................................... 12
1 Testing the Readiness for Operation........................................................ 12
1.1
Battery (Varta 5M6 6 V/6 Ah or Sonnenschein 6 V / 6.5 Ah) ........... 12
1.2
Meaning of the Acoustic Signals...................................................... 12
2 Test Voltage............................................................................................. 14
2.1
Checking for High Voltage at the Test Electrode ............................. 14
2.2
Is the Test Voltage Level Correctly Set?.......................................... 14
2.3
Is the Test Voltage Monitored with a Sphere Gap? ......................... 14
3 Earthing.................................................................................................... 14
3.1
Methods of Earthing ........................................................................ 14
4 Test Procedure ........................................................................................ 18
4.1
Is an Automatic Controller Installed in the Tester? .......................... 18
4.2
Are the Test Electrodes in Order? ................................................... 18
4.3
Special Tests ................................................................................... 19
C
Table for Intermediate Values of the Test Voltage ....................................... 20
Isotest II RT-F - Special Model
In this special model, the test voltage is set with a micro-drive. This gives a higher
degree of precision, particularly with low test voltages. For technical reasons, the
test voltage is limited to 25 kV.
In this manual, the designation
II RT(-F)
stands for tester model
II RT
as well as for
model
II RT-F
. Type
II RT-F
is mentioned specifically only where there are devia-
tions between the two models.
