If, after 1 minute, the voltage reads less than 12 V, the
integrity of the battery should be suspect and should
be replaced.
2.
Battery Service
The 12 V sealed lead acid battery is charged using lead
acid charging technology. The charging circuit is active
anytime the unit is plugged into an acceptable AC Mains
outlet. The charger automatically sequences through
several charge states based on the battery voltage and
charging current conditions. Based on a charger test, the
best charge mode is selected. No maintenance is
required of the battery charging circuit.
The life of the battery depends on the type of
service and the storage method. Battery replacement will
need to be more frequent with continued cycles of deep
discharge and/or storage in a high temperature
environment.
Infrequent short-term use of the battery and storage
in a room temperature environment will result in
maximum life. It is recommended that the battery in the
A.T.S.
1200 Tourniquet System be replaced annually. As
a reminder, the
A.T.S.
1200 System should be plugged in
24 hours before initial use.
3.7 UNSCHEDULED MAINTENANCE
The
A.T.S.
1200 Tourniquet is designed with several specific
self-test features to assist in fault isolation. These features are
designed to show messages in the PRESSURE and TIME
displays. The meanings of these messages are delineated in
Table 2.1.
Another mode of failure that may occur is when an
audible alarm occurs that cannot be silenced by the ALARM
SILENCE button. The valve and pump will be disabled
which seals off the cuff to prevent pressure loss. The displays
may show random characters. Should this occur, the watch
dog timer circuit of the safety processor has detected a
problem. The microprocessor may not be executing reliable
instructions and is not able to display the correct failure
message. This unit should be serviced if this occurs.
The calibration error message “CAL” “FAIL”, “CALM”
“FAIL” or “CAL2” “FAIL” may be due to defective circuitry
or may simply indicate the need for calibration.
3.8 TROUBLE SHOOTING GUIDE
To aid in unscheduled maintenance, Table 3.2 delineates a
number of possible malfunctions that could occur with the
unit. The most likely causes are shown for each symptom.
While it is not practical to enumerate every conceivable
malfunction and all possible causes, the table will assist in
isolating the most common problems.
3.9 EXPECTED TEST POINT READINGS
To expedite unscheduled maintenance, Table 3.3, Expected
Test Point Readings, has been incorporated into this manual.
This table, as well as Table 3.2, Troubleshooting, should give
a qualified technician a good starting point from which to
locate and repair most problems that could occur during the
life of the unit. Unless noted, all measurements are to be
made at room temperature with the cuffs disconnected, and
the unit
plugged in
. All voltage measurements are with
respect to ground and are to be made with the unit on.
18
A.T.S. 1200 TOURNIQUET SYSTEM
Содержание 60-1200-101-00
Страница 1: ...Operator Service Manual A T S 1200 TOURNIQUET SYSTEM REF 60 1200 101 00 ...
Страница 26: ...R Power Cord S Cord Retaining Clip T Factory Test Port U Pole Clamp V Mains Fuse Block 24 2 ...
Страница 30: ...28 9 Control Board Layout ...
Страница 32: ...30 10 ...
Страница 33: ...SCHEMATICS ...
