Codman ICP EXPRESS Manual De Instrucciones página 8

CODFR06058xx01v10.qxd 3/8/07
IMPORTANT BATTERY MAINTENANCE INFORMATION!
To maintain the ICP EXPRESS Monitor rechargeable battery in
optimum condition:
1. Charge for at least 12 hours within seven days of a complete discharge.
2. Charge for at least 12 hours once every six months when unit is not in
regular use.
Charging occurs automatically whenever the unit is connected to AC power.
Failure to maintain the battery as described may result in reduced battery life.
Fuse Replacement
1. Turn the ICP EXPRESS Monitor OFF and remove the power cord from
the rear panel AC power entry module. WARNING: Disconnect the
ICP EXPRESS Monitor from all external AC power sources before
changing fuses.
2. To remove the fuse holder, place a small screwdriver, or fine pointed
object, in the slot at either side of the panel and gently press the tab so that
the holder pops partially out. Pull the fuse holder straight out to expose the
fuses. See Figure 6.
3. Remove the fuses by pulling them straight out of the fuse holder.
4. Replace the fuses with the same type and rating as indicated on the rear
panel label. For model 82-6634 use 5 x 20 mm, 0.25 A, 250 V, time delay
(SB or T) type fuses.
5. Replace the fuse holder by inserting it into the receptacle and pushing
firmly until the fuse holder pops back into place on both sides. The fuse
holder is keyed to prevent improper installation.
NOTE: If the fuses continue to blow, contact appropriate
technical personnel.
AC Power Cord Retainer
A removable AC power cord retainer is included for optional use. When
properly installed, the retainer will prevent inadvertent disconnection of the
AC power cord.
WARNING: Disconnect the AC power cord from the AC power supply
before installing or removing the AC power cord retainer.
1. Use a Phillips screwdriver to remove the screw located directly
underneath the AC power entry module on the rear panel of the
ICP EXPRESS Monitor (refer to Figure 7-1). DO NOT discard the screw;
it will be reinstalled in Step 4.
2. Plug the AC power cord into the power entry module as shown in
Figure 7-2.
3. Place the "U" shaped arm of the retainer around the shoulder of the
power cord plug, as shown in Figure 7-3. Align the hole in the retainer with
the screw hole located directly beneath the AC power entry module.
4. Reinstall the previously removed screw through the hole in the retainer
and into the screw hole located directly beneath the AC power entry
module. Once the retainer is installed, the AC power cord cannot be
removed from the ICP EXPRESS Monitor without first removing
the retainer.
ICP EXPRESS Cable
The ICP EXPRESS Monitor is supplied with one ICP EXPRESS Cable
for connecting to CODMAN MicroSensor ICP Transducers. See Figure 8.
CAUTION: Use only the CODMAN ICP EXPRESS Cable to connect the
MicroSensor to the ICP EXPRESS Monitor. The ICP EXPRESS Cable is
also available separately (Catalog No. 82-6636).
The ICP EXPRESS Cable is reusable and is supplied nonsterile. Refer to
the Sterilization section for details. CAUTION: DO NOT AUTOCLAVE the
ICP EXPRESS Cable. Sterilize the ICP EXPRESS Cable using ethylene
oxide (EtO) gas only.
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The ICP EXPRESS Cable has a non-volatile memory element (EEPROM)
embedded in-line which is used to store the transducer zero reference value
of any attached MicroSensor. The ICP EXPRESS Monitor automatically
stores the zero reference value in the cable when the transducer zeroing
process is complete. By storing the transducer zero reference value in the
cable, the user will not have to manually adjust the offset if the patient is
moved to another monitor or to another ICP EXPRESS unit, as long as the
original ICP EXPRESS Cable is retained with the equipment in use. If the
original ICP EXPRESS Cable is not retained when switching to new
equipment, the user will be required to manually adjust the stored zero
reference value via the manual zero referencing function of the
ICP EXPRESS Monitor.
The ICP EXPRESS Monitor will erase the previously stored zero reference
value and store a new zero reference value in the ICP EXPRESS Cable
whenever a new MicroSensor is zeroed, or when the user chooses to adjust
the reference manually. The memory element in the cable is designed to
perform over one million erase/write cycles and will retain data for several
years. NOTE: A transducer zero reference value of "-99", as displayed by
the ICP EXPRESS Monitor during a manual zeroing or zero reference
verification procedure, is an indication of an ICP EXPRESS Monitor
EEPROM read failure. This may be a result of a simple random timing
error by the ICP EXPRESS Monitor and may be corrected by selecting the
ADJUST REFERENCE menu item and manually adjusting the displayed
zero reference value to the correct zero reference value. However, this error
may also be an indication of a failure in the ICP EXPRESS Cable EEPROM
circuit due to deterioration associated with age or mechanical abuse.
CAUTION: Discontinue use of any ICP EXPRESS Cable that continues
to yield a "-99" transducer zero reference value (as displayed on the
ICP EXPRESS Monitor screen) during the manual zeroing or zero
reference verification procedures.
CAUTION: DO NOT immerse the ICP EXPRESS Cable in any liquid,
or allow liquid to enter the plug or connectors. Do not use cable if
connectors become wet. Erratic results may occur.
CAUTION: Verify cable integrity prior to use. Do not use any
cable that fails to meet the pin-to-pin resistance or electrical
leakage specifications.
The ICP EXPRESS Cable integrity should be evaluated by qualified
technical personnel. The cable should be routinely inspected for pin-to-pin
resistance and electrical leakage.
Pin-to-pin resistance may be measured using an ohmmeter. Resistances
between pins 1–1, 2–2, 3–3, and 4–4 must be one ohm or less. See
Figure 8.
Electrical leakage may be evaluated using an ohmmeter. Measure the
open circuit resistance between pins 1, 2, 3, 4 (inclusive) and all other pins
accessible on the ICP EXPRESS Monitor connector end. The open circuit
resistances must be 300 MΩ or greater.
Technical Specifications
Pressure Channel
Operating Range:
Transducer Excitation Voltage:
Transducer Sensitivity (Gain):
Input Impedance:
Frequency Response:
Zero Range:
Drift:
Pressure Display Accuracy:
Pressure Display Resolution:
Isolation:
Leakage Current:
8
–50 to 250 mmHg
5 VDC, ±2.6%
5 µV/V/mmHg
10 MΩ
0 to 200 Hz (–3 dB)
±100 mmHg (auto pushbutton)
<0.1 mmHg/°C (exclusive
of transducer)
±1% of reading or 1 mmHg,
whichever is larger (exclusive
of transducer)
1 mmHg
Isolated from ground related
circuits by >4000 Vrms.
<10 µA at 117 VAC, 50–60 Hz