Retained Slave Settings; Simultaneous Output On/Off Control; Maintenance - Thurlby Thandar Instruments New PL Serie Manual Del Usuario

Parallel
The MODE switch is set to PARALLEL. The instrument operates in true parallel mode with all of
the power available from the Master output which can then supply up to 6 amps. The Slave
output is disabled and its displays are turned off.
In Parallel mode the value of the current limit is doubled for the same setting of the Current limit
control, including the 500mA range which becomes 1000mA max; as a warning, when Parallel
mode is first selected, the current display flashes twice before steadily displaying the new limit.
Similarly, the current display is flashed twice when the mode is changed from Parallel to Tracking,
as a warning that the Master output current limit has now halved.
The LOCK and VOLTAGE SPAN functions of the Master operate exactly as described previously.
It is possible to switch from Parallel mode back to Tracking mode (and vice-versa) with LOCK still
set on the Master; both the Voltage and Current controls of the Master stay in LOCK, as
described previously. However, the actual set current limit of the Master will still double (switching
from Tracking to Parallel) or halve (switching from Parallel to Tracking), even though LOCK is set,
but the current display flashes as a warning that this has happened.

Retained Slave Settings

If V-Span is enabled on the Slave output in INDEPENDENT mode, it is disabled when TRACKING
mode is selected but re-enabled when INDEPENDENT mode is re-selected.
If Ratio (%) Tracking is enabled on the Slave output in TRACKING mode, it is disabled when
INDEPENDENT or PARALLEL are selected but re-enabled when TRACKING mode is re-
selected.

Simultaneous Output On/Off Control

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.
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.
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The Both On / Both Off keys are in addition to the individual OUTPUT switches
and permit both outputs to be turned on or off synchronously with a single key
press. The Both On / Both Off keys operate in all four configuration modes.

Maintenance