Warning Messages; Testing To National Standards - Megger OTS60SX Guia Del Usuario

3) The output voltage reaches the maximum value of the test set.
During withstand testing the ramp rate can be changed while the
pause is in progress. This can allow the withstand test value to be
accurately set by adjusting the ramp rate to the lowest value.

Warning Messages

Door Open
If the instrument overheats, the words '
' ' will be alternately displayed and the
operation disabled. This will reset automatically,
when cooled, after a few minutes.

Testing to National Standards

The can be used to test to any international standard.
A table of the standards is given on page 10. To perform these
OTS60SX
tests it is necessary to select the correct vessel so that the
specified electrodes and suitable stirring are used. Most standards
require repetitive breakdown tests to be carried out and the
average taken. Note that sometimes the first breakdown result is
omitted from the average calculation. If continuous stirring is not
required the stirrer motor supply can be disconnected when
appropriate by opening the chamber door.
100 ml Oil Test Vessel
The D877 Low Volume Test Vessel is an optional accessory for
use with the Megger®
OTS60SX
The test vessel must be kept scrupulously clean. Before each
use, dismantle the test vessel, clean and dry, re-assemble, and
set the electrode gap to 2,54 mm (0.100 inch).
' and
Oil Test Set.
Dismantling the vessel
1. Loosen both white locking screws.
2. Hold each electrode in turn, and unscrew, and remove the
sliding arm from each electrode.
3. Remove both electrodes from the vessel.
4. Wash hands, and clean and dry the vessel as specified in
ASTM D.877.
Fill level
Electrode
Re-assembling the vessel
1. With clean, uncontaminated hands, place the cleaned
electrodes in the vessel.
2. Position each electrode in turn with the fingers, and screw
in a sliding arm through the vessel into the each electrode
in turn.
3. Centre the electrodes, and set the gap, using the
appropriate gauge.
4. Ensuring that the Viton 'O' rings are not fouled, hand tighten
both locking screws.
also supply a range of automatic oil test sets.
Megger Limited
These have the parameters of a wide range of specifications
programmed into the instrument for unattended operation.
Locking
Viton
screw
(Oil resistant)
'O' Ring
Sliding arm
7