Calibration Specific Commands
See Service Manual for details of calibration specific commands.
Note:
The use of ‘1’ in many of the commands (e.g. V1 <nrf>, I1O?) is to keep the commands entirely
compatible with those for multi-output TTi programmable power supplies. ‘1’ refers to ‘Output 1’ which,
for this power supply, is the only output; a dual output supply, for example, would have a duplicate set of
commands V2 <nrf>, I2O?, etc.
Maintenance
The Manufacturers or their agents overseas will provide a repair service for any unit developing a
fault. Where owners wish to undertake their own maintenance work, this should only be done by
skilled personnel in conjunction with the service manual which may be purchased directly from
the Manufacturers or their agents overseas.
Fuse
The correct fuse type is:
15 Amp 250V HBC time-lag, 1¼” x ¼”
Make sure that only fuses of the required rated current and specified type are used for
replacement. The use of makeshift fuses and the short-circuiting of fuse-holders is prohibited.
To replace the fuse, first disconnect the instrument from the AC supply. Remove the 6 cover
securing screws and lift off the cover. Replace the fuse with one of the correct type and refit the
cover.
Note that the main function of the fuse is to make the instrument safe and limit damage in the
event of failure of one of the switching devices. If a fuse fails it is therefore very likely that the
replacement will also blow, because the supply has developed a fault; in such circumstances the
instrument will need to be returned to the manufacturer for service.
Cleaning
If the instrument requires cleaning use a cloth that is only lightly dampened with water or a mild
detergent.
WARNING! TO AVOID ELECTRIC SHOCK, OR DAMAGE TO THE INSTRUMENT, NEVER
ALLOW WATER TO GET INSIDE THE CASE. TO AVOID DAMAGE TO THE CASE NEVER
CLEAN WITH SOLVENTS.
Web link
For the latest version of this instruction manual, IVI driver and any applicable firmware updates go
to http://www.tti-test.com/go/qsx .
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