Remote Control System TT801 – User Guide
MU-TT801-AN rev.6 September 2009
18
II.2 Handling
Do not allow instruments to be dropped or exposed to shock damage, which can cause
sensitive internal components to fail.
Control the local environment by preventing personnel stepping into the bight of
haphazardly laid cables, which are attached to the instrument.
Do not allow an instrument to block an access or impede normal traffic flows in gangway
or on a stairway.
TT801 Deck set remains safe in use when operated and handled with standard operating
procedures and written guidelines, therefore in normal operation little threat is posed to
the safety of individuals or instruments
Servicing an instrument must always be carried out by competent personnel with
appropriate training. Generally, when dismantling equipment, care should always be
taken, the disassembly process should be carried out in a clean, free of dust and well-
ventilated area.
WARNING
H
IGH
V
OLTAGES
: O
PERATION OF THE
TT801
DOES NOT PRESENT ANY DANGER TO USERS IN
NORMAL USE
. I
F THE INTERNAL ELECTRONIC
PCB
IS REMOVED FROM ITS
’
METAL HOUSING FOR
MAINTENANCE
,
THE USER SHOULD BE AWARE THAT HIGH VOLTAGES ARE PRESENT
,
PARTICULARLY
AT THE
T
RANSMITTER SECTION WHEN THE DUNKING TRANSDUCER IS CONNECTED TO THE FRONT
PANEL
.
S
TORAGE
C
APACITORS
: TT801
INCORPORATES
CAPACITORS, WHICH
ARE CAPABLE OF
STORING LARGE QUANTITIES OF ELECTRICAL ENERGY
. A
VOID INADVERTENT DISCHARGE DURING
DISMANTLING
.
E
LECTRONIC COMPONENTS
: M
OST OF THE CIRCUITS IN THE
TT801
USE
CMOS LOGIC, WHICH
IS EASILY DAMAGED BY STATIC DISCHARGE OR EXCESSIVE SUPPLY VOLTAGE
. T
HE BEST HANDLING
FOR ELECTRONICS IS
NO HANDLING. F
ILED SERVICING CANNOT COMPARE IN EFFICIENCY AND
ACCURACY WITH THE ORIGINAL FACTORY ALIGNMENT OR CALIBRATION AND THEREFORE FILED
SERVICING IS SHOULD BE LIMITED TO CHECKING CORRECT OPERATION AND REPAIR BY EXCHANGE
OF
PCB’
S OR MODULES
.
Summary of Contents for TT801
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