Zimmer A.T.S. 2000, Operators & Service Manual

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2.3.2 VOLUME SELECTION
An operator may want to change the speaker volume set-
ting from the default value of 2.
The following steps will allow a user to customize the
speaker volume default.
1. Prior to any cuff inflation, set the speaker volume
by pressing and holding the second cuff PRES-
SURE (+) and (–) touch-switches simultaneously.
Hold until “VOL” is displayed in the second cuff
PRESSURE display.
2. Adjust the volume to the desired level by pressing
the second cuff TIME (+) or (–) touch-switches.
The (+) increases volume while the (–) decreases
volume. The volume can be set from 1 to 4, with 1
being the lowest volume.
3. Exit the volume mode by pressing the second cuff
PRESSURE (+) and (–) touch-switches simultane-
ously. The new speaker volume setting will be writ-
ten to nonvolatile storage and used as the default
setting.
2.4 CONTROLS, INDICATORS, AND CONNECTORS
Refer to Fig. 2 for the locations of the unit’s controls, indica-
tors, and connectors. Their primary functions are:
1. ON/STANDBY (I/O) touch-switch
Turns the unit on or sets the unit to STANDBY. This
switch has approximately a 2-second time delay.
When setting the unit to STANDBY, this switch must
be held in for the 2-second duration. This helps pre-
vent the unit from being accidentally set to STANDBY.
This switch will not set the unit to STANDBY when the
cuff pressure is at a non-zero value.
Ensure cuffs
are fully deflated and have been removed from
the patient prior to setting the unit to STANDBY.
Note: During STANDBY, power to the A.T.S. 2000 in-
strument and all instrument functions (i.e. inflation,
deflation, etc) are off but power continues to supply
the battery charging circuitry anytime
~ (AC) power is present.
2. PRESSURE SETTING Touch-Switches
a) The MAIN CUFF controls, indicators and connec-
tors operate the main cuff. The SECOND CUFF
controls, indicators and connectors operate the
second cuff. To view the current pressure setting,
depress either pressure setting touch-switch (+) or
(–). The PRESSURE display will display the pres-
sure setting with an asterisk (*) in the far leftmost
digit. The asterisk helps the operator identify that
the data displayed is the set point data, not the ac-
tual sensed pressure. This is helpful when needing
to view the set point data during a procedure.
b) To change the pressure setting, depress and hold
the increase (+) or decrease (–) touch-switch
until the desired setting is reached. The setting
will change in 1 mm Hg increments for the first
5 counts or until reaching a multiple of 5, then in
increments of 5 until the touch-switch is released or
the limits (0 and 475) are reached.
3. TIME SETTING Touch-Switches
a) To view the current time setting, depress either time
setting touch-switch (+) or (–). The TIME display
will display the time setting with an asterisk in the
far left digit. The asterisk helps the operator identify
that the data being displayed is the set point data,
not the actual elapsed time. This is helpful when
viewing the setpoint data during a procedure.
b) To change the time setting, depress and hold the
increase (+) or decrease (–) touch-switch until the
desired setting is reached. The setting will change
in 1 minute increments for the first 5 counts or until
reaching a multiple of 5, then in increments of 5 un-
til the touch-switch is released, or the limits (0 and
240) are reached.
c) The accumulated inflation time may be reset to
zero by depressing the TIME increase (+) and de-
crease (-) touch-switches simultaneously for 2-sec-
onds. This enables the unit to be used for multiple
procedures at the same pressure setting without
setting the unit to STANDBY (and thus erasing the
selected pressure set point if other than the default
is used.)
4. INFLATE/DEFLATE Touch-Switches
Inflation or deflation of the cuff(s) is accomplished by
depressing the appropriate touch-switch. For greater
safety, the deflate touch-switch has a delay and, there-
fore, must be held for 1.5 seconds before the unit will
allow a cuff to deflate.
Note: It is not possible to deflate one cuff while the
other cuff is inflating.
5. ALARM SILENCE SWITCH
This push-button switch will light when any of a number
of alarm conditions exist. The audible tone associ-
ated with most of these alarms may be silenced for 30
seconds by depressing this switch. The push-button will
remain lighted until the alarm condition is corrected.
Note: In general, when an alarm sounds because of an
internal circuit malfunction, the tone cannot be silenced
by this switch.
6. PRESSURE DISPLAYS
During normal operation with no touch-switches being
depressed, the displays will show the pressure sensed
in the cuff(s) over the range of 0 to 475 mm Hg. At
other times, depending on alarm conditions and touch-
switches, these displays may communicate other infor-
mation such as alarm messages or pressure set point.
The pressure set point may be viewed on the displays
when the PRESSURE SETTING touch-switches are
operated in accordance with point 2 above.
7. TIME DISPLAYS
During normal operation, with no touch-switches being
depressed, the displays will show the inflation time of
the cuff(s) in 1-minute increments, up to a maximum of
240 minutes. At other times, depending on alarm condi-
tions and touch-switches, these displays may com-
municate other information such as alarm messages
or time set point. The time set point may be viewed on
the displays when the TIME SETTING touch-switches
are operated in accordance with point 3 above. If the
inflation time has exceeded the time alarm setting, the
display will flash between inflation time and “TIME” “UP”
message.