Integra Codman ICP EXPRESS Mode D'emploi page 12

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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 Codman 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
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
Codman 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 Codman
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 can 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 can 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 must be evaluated by qualified technical personnel.
The cable must be routinely inspected for pin-to-pin resistance and electrical leakage.
Pin-to-pin resistance can 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 can 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:
–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 ransducer)
Pressure Display Accuracy:
Pressure Display Resolution:
Isolation:
Leakage Current:
Alarms
Alarm Parameter:
Low (LO) Limit, Default:
High (HI) Limit, Default:
Low (LO) Limit Range:
High (HI) Limit Range:
External Patient Monitor Interface
Output Signal Sensitivity:
Output Signal Accuracy:
Reference Signals:
Input Impedance:
Source Impedance:
Frequency Response:
Recommended External Patient Monitor Specifications
Excitation Voltage Range:
Excitation Voltage Frequency:
Transducer Sensitivity (Gain):
Drift:
Zero Range:
Frequency Response:
Leakage:
Isolation:
Display
Type:
Active Viewing Area:
Matrix Size:
Backlight:
Viewing Angle:
Environmental
Operating Temperature Range:
Non-Operating Temperature Range
(Storage and Transportation):
Operating/Non-Operating
Humidity Range:
Operating Atmospheric Pressure
Range:
7
±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 120/127 VAC, 60Hz
Mean ICP
0 mmHg (user adjustable)
20 mmHg (user adjustable)
–50 to +249 mmHg; 1 mmHg steps
–49 to +250 mmHg; 1 mmHg steps
5 µV/Vex/mmHg or 40 µV/Vex/mmHg (user
selected; referenced to excitation voltage
of patient monitor)
±1 mmHg or 1%, whichever is greater
(exclusive of transducer)
0, 20 and 100 mmHg
350–500 Ω
350 Ω
0 to 200 Hz (–3 dB)
0.5 to 10.0 VDC or VAC rms
DC to 5000 H
5 µV/Vex/mmHg or 40 µV/Vex/mmHg
<0.1 mmHg/°C
at least ±100 mmHg
at least 10 Hz
<10 µA at 120 VAC, 60 Hz
Isolated from ground related circuits by
4000 Vrms.
Liquid Crystal Display (LCD)
2.215 in. x 1.51 in. (5.6 x 3.8 cm)
128 x 64 pixels
Blue-Green Electroluminescent (EL)
±30°
5°C to 45°C
–40°C to 60°C
5% to 90% (non-condensing)
700 hPA to 1060 hPA