Ensure that the instrument is properly earthed. The test set must be connected to a
socket (receptacle) with a protective earth (ground) conductor.
Before connecting the instrument to the mains power supply, ensure the voltage
selector located on the mains input panel is set to the required voltage. The correct
fuse value should be fitted for the supply voltage (See Specification). The fuse holders
are located next to the supply inlet.
Power cord
If the power cord plug is not suitable for your type of socket outlets, do not use an
adaptor. You should use a suitable alternative power cord, or if necessary change the
plug by cutting the cord and fitting a suitable plug.
The colour code of the cord is:
Earth (Ground)
Yellow / Green
Neutral
Blue
Phase
(Line)
Brown
If using a fused plug, a 3 Amp fuse to BS 1362 should be fitted.
Note: A plug severed from the power cord should be destroyed, as a plug with bare
conductors is hazardous in a live socket outlet.
Oil Sampling
The relevant test specification will give advice on the best methods to use when
sampling oil. Contamination of the oil may lead to misleading results. Always run off
a small amount of oil before sampling and ensure that the flow of oil is steady.
Preparing the Oil Test Vessel
Optional vessels are available for testing to national specifications (See table and
Accessories). Some specifications require stirring of the oil sample as well as different
test electrode shapes. Once the correct vessel has been chosen for the required test
the electrode gap should be set. This is achieved by adjusting the threaded nut on
the side of the vessel. Small adjustment of the gap can be made by hand tightening
the nuts and rotating the spindle. A slot is provided on the end of the spindle for this
purpose.
A set of individual 0,5 mm feeler gauges is provided for accurate measurement of the
gap. Gauges can be combined to measure from 1 mm to 4 mm. (see page 12)
Clean the vessel in accordance with the instructions given in the relevant test
specification. Allowing space for the lid to be fitted, fill the vessel with the oil sample.
The amount of oil required will depend upon the type of lid used. Load the vessel in
the test chamber, connecting the motor power cable, if fitted, and carefully shut the
door so that the safety interlock switch operates.
Preparing the Oil Test Set
5
Operation
