NORTH AMERICAN DRÄGER MicroVent User manual
Dräger Medizintechnik
D
Contents
1 General Information About the Dräger Service Mode 3
1.1 Definition of the Original Status ...................................................................................3
1.2 Calibration Functions ..................................................................................................... 4
1.3 Reaction in the Event of a Technical Error (TE) ........................................................4
1.4 Error Messages During a Specific Test ......................................................................5
1.4.1 Power Supply Low .........................................................................................5
1.4.2 Pressure Low ..................................................................................................5
1.4.3 Pressure High .................................................................................................5
1.4.4 Mode Switch Position (IPPV/CPAP) .........................................................5
1.4.5 Mode Switch Position (IPPV/CPAP) .........................................................5
1.5 Tests in the Dräger Service Mode ...............................................................................6
2 Starting / Exiting the Customer Service Mode (CSM) 7
2.1 Test 001: Adjusting the Language ...............................................................................8
2.2 Test 002: Testing the Gas Supply ............................................................................. 10
2.3 Test 003: Position of the Pneumatic Switch (IPPV/CPAP) ..................................11
2.4 Test 004: Setting the Minute Volume Limits ............................................................12
2.5 Test 005: Buzzer Test, LED Test, and LCD Test .................................................... 13
2.6 Test 006: Adjusting and Reading Out the
Potentiometers f, VT, Tinsp, and Pmax 14
2.7 Test 007: Tachypnea Monitoring Configuration ..................................................... 15
3 Starting / Exiting the Extended Service Mode (ESM) 16
3.1 Test 011: Calibrating the Pressure Sensors P-Supply and P-LA ........................17
3.2 Test 012: Calibrating the Minute Volume Valve ...................................................... 18
3.3 Test 013: Adjusting and Displaying the Flow ......................................................... 20
3.4 Test 014: Reading in the Analog Channels ............................................................ 22
3.5 Test 015: Testing Basic Flow ..................................................................................... 26
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5673.100 MicroVent 09/97 Service Mode Page I
Dräger Medizintechnik
Contents
3.6 Test 016: Testing the Autozero Solenoid Valve ...................................................... 28
3.7 Test 017: Displaying and Calibrating the Autozero Offset .................................. 29
3.8 Test 018: Testing the Pressure Sensor Paw and
Triggering the Minute Volume Valve 30
3.9 Test 019: Testing the Expiratory Solenoid Valve .................................................... 33
3.10 Test 020: Testing the ASB Solenoid Valve ............................................................. 34
3.11 Test 021: Testing the Supply Pressure .................................................................... 35
3.12 Test 022: Testing the Minute Volume Valve (Slow) ............................................... 36
3.13 Test 023: Testing the Minute Volume Valve (Fast) ................................................. 37
D
3.14 Test 024: Testing the Differential Pressure Sensor ∆P and
Testing the Flow Measurement 38
3.15 Test 025: Testing the Pressure Switch PEEP-ASB .............................................. 40
4 Technical Error (TE) List 41
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5673.100 MicroVent 09/97 Service Mode Page II
1 General Information About the Dräger Service Mode
You can operate the Dräger Service Mode with the Info key and the Reset key. These keys
allow you to change the set values, to scroll through tests, or to confirm execution of a
specific test. The Dräger Service Mode is subdivided into the Customer Service Mode
(CSM) and the Extended Service Mode (ESM). The working language used throughout the
Dräger Service Mode is English.
The Dräger Service Mode in the MicroVent includes 20 tests:
• The first six tests (Test 001 through Test 006) are specifically designed for the customer
(CSM), but can also be used by Dräger service technicians.
• The other fourteen tests (Test 011 through Test 024) are part of the Extended Service
Mode (ESM) which is used to carry out calibrations. These tests are only accessible to
Dräger service technicians. To do so, the Dräger service technician must enter a
numeric code.
1.1 Definition of the Original Status
Each function in the Dräger Service Mode can be carried out separately. At the beginning of
the Dräger Service Mode and after completion of a specific test, the MicroVent enters one of
the following original status.
Table 1: Original Status of the Micro Vent in the Dräger Service Mode
I:E solenoid valve Off (expiration)
PN solenoid valve Off (PEEP is inactive)
Autozero solenoid valve Operated automatically
Exp. solenoid valve Off (normal position = expiration)
ASB solenoid valve Off (ASB is inactive)
MV valve Closed
Alarm LED Off
Buzzer Off
LCD backlight On
Paw alarm Deactivate
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Service Mode
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1.2 Calibration Functions
The following table lists the four calibration functions available in the Dräger Service Mode.
The data is stored in the EEPROM:
Table 2: Calibration Functions in the Dräger Service Mode
No. Function Mode Test No.
1 Adjusting the Language CSM/ESM 001
2 Calibrating the Pressure Sensors (Pvers, PLA) ESM 011
3 Calibrating the Minute Volume Valve ESM 012
4 Calibrating the Autozero Offset ESM 017
Caution:
After installing a new Control PCB, perform the calibration functions (Nos. 1 through 4)
specified in the table above.
After installing a new Sensor PCB, perform Test 011 “Calibrating the Pressure Sensors PSupply and P-LA”.
1.3 Reaction in the Event of a Technical Error (TE)
If the MicroVent detects a technical error, it will show the error number on the display. The
technical error and the name of the current test are displayed alternately at 2-second
intervals. In the event of a technical error, all tests can be carried out normally. The message
on the display disappears as soon as the technical error has been corrected.
A new Control PCB will generate the error No. 16 (invalid check sum in the EEPROM) before
initial calibration. This technical error will disappear as soon as all data has been calibrated.
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Service Mode
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1.4 Error Messages During a Specific Test
If the system detects and displays an error, you must confirm this error by pressing the Info
key and the Reset key simultaneously. Once the error has been removed, the specific test
can be selected and carried out again.
All potential errors and their cause are listed below:
1.4.1 Power Supply Low
Problem
Accu/Bat. empty
1.4.2 Pressure Low
Problem
Pressure low
1.4.3 Pressure High
Problem
Pressure high
No external power supply connected. The internal
power supply is no longer sufficient for safe
operation.
Gas supply pressure is too low.
A gas supply source is connected although no
pressure is required for this test.
1.4.4 Mode Switch Position (IPPV/CPAP)
Problem
The mode switch is not in the correct position.
Pos. IPPV/SIPPV
1.4.5 Mode Switch Position (IPPV/CPAP)
Problem
The mode switch is not in the correct position.
Pos. SIMV/CPAP
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Service Mode
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1.5 Tests in the Dräger Service Mode
Table 3: Service Mode Tests
Test number Test Name Mode
001 Adjust language CSM
002 Supply pressure CSM
003 Mode switch CSM
004 Adjust MV limits CSM
005 Buzzer & LED test CSM
006 Adjust f, V
, Ti, Pmax CSM
T
007 TACHYPNEA ALARM CSM
008 to 010 Not assigned
011 Calibration PSWI ESM
012 Calibration MV valve ESM
013 Flow set & measure ESM
014 Analog inputs ESM
015 Test basic flow ESM
016 Test autozero valve ESM
017 Autozero meas & cal. ESM
018 Set MV valve, Paw ESM
019 Test EXP valve ESM
020 Test ASB valve ESM
021 Test supply pressure ESM
022 Test MV valve slow ESM
023 Test MV valve fast ESM
024 Flow measurement ESM
025 Test pressure switch ESM
026-255 Not assigned
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Service Mode
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2 Starting / Exiting the Customer Service Mode (CSM)
☞
Important:
In the Customer Service Mode (CSM), only Test 001 through Test
006 are accessible to the customer or Dräger service technician.
The other tests are deactivated.
Test 007 is only available in US software version.
• Turn the potentiometers for frequency f and for tidal volume VT clockwise as far as they
will go.
• Press and hold the Info key and the Reset key simultaneously and switch on the
MicroVent.
Display:
C u s t o m e r
Customer Service Mode (CSM)
Se r v i c e - M o d e
• Release the two keys.
Display:
A d j u s t l a n g u a g e
< – 0 0 1 + >
• Press the Reset key or the Info key to select Test 001 through Test 007.
• Press the Reset key and the Info key simultaneously to activate the respective test.
• Press the Reset key and the Info key simultaneously again to return to the Customer
Service Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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2.1 Test 001: Adjusting the Language
This test allows you to adjust the language to be used during the MicroVent operation.
• Press the Reset key to select the desired language.
Display:
d e u t s c h
or
e n g l i s h
or
f r a n c a i s
or
e s p a n o l
or
s u o m e k s i
or
p o r t u g u e s e
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Service Mode
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or
i t a l i a n o
or
a m e r i c a n e n g l i s h
or
f r a n c a i s f r a n c e
or
n e d e r l a n d s
• Press the Info key and the Reset key simultaneously to adjust the desired language.
The MicroVent returns automatically to the Customer Service Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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2.2 Test 002: Testing the Gas Supply
The pressure sensors must have been calibrated (test 011 in Extended Service Mode) befre
selecting test 002.
• Press the Reset key to select Test 002.
• Press the Info key and the Reset key simultaneously to activate Test 002.
Display:
P r e s s u r e h i g h
The gas supply pressure is sufficient.
or
P r e s s u r e l o w
The gas supply pressure is too low or the
device is not connected to a gas supply source.
• Press the Info key and the Reset key simultaneously to return to the Customer Service
Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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Service Mode
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2.3 Test 003: Position of the Pneumatic Switch (IPPV/CPAP)
This test allows you to check position of the IPPV/CPAP mode switch is checked. The
respective position is shown on the MicroVent display. The pressure sensors must have been
calibrated (test 011 in Extended Service Mode) befre selecting test 003.
If the pressure in the device is too low, or if the device is not connected to a gas supply
source, the warning “Problem pressure low” will appear. The problem must then be rectified
(establish gas supply) and subsequently confirmed with the Info and Reset key before test
003 can be called up again.
• Press the Reset key to select Test 003.
• Press the Info key and the Reset key simultaneously to activate Test 003.
Display:
P o s. I P P V / S I P P V
or
P o s. S I M V / C P A P
• Press the Info key and the Reset key simultaneously to return to the Customer Service
Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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2.4 Test 004: Setting the Minute Volume Limits
This test allows you to check the settings of the minute-volume double-potentiometer
(plausibility test).
• Press the Reset key to select Test 004.
• Press the Info key and the Reset key simultaneously to activate Test 004.
Display:
M V – l o w = X X . X X
M V – h i g h = X X . X X
• Adjust the values listed in the table below using the potentiometer and check the values
shown on the display.
Table 4: Minute Volume Alarm Limit Settings
Values Adjusted with the Potentiometer Values shown on the Display
MV - high 2 L/min
10 L/min
20 L/min
MV - low 2 L/min
10 L/min
20 L/min
1.9 to 2.1 L/min
9.5 to 10.5 L/min
19 to 21 L/min
1.9 to 2.1 L/min
9.5 to 10.5 L/min
19 to 21 L/min
• Press the Info key and the Reset key simultaneously to return to the Customer Service
Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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Service Mode
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2.5 Test 005: Buzzer Test, LED Test, and LCD Test
This test allows you to check the audible and visible signals. The LEDs of the
internal/external power supply, the alarm LED and the backlight of the display come on. The
buzzer is activated and the pixels of the display are triggered.
• Press the Reset key to select Test 005.
• Press the Info key and the Reset key simultaneously to activate Test 005.
Display:
I N F O T E S T O N
R E S E T T E S T O F F
• Press the Info key to start Test 005.
• Press the Reset key to stop Test 005.
• Press the Info key and the Reset key simultaneously to return to the Customer Service
Mode (CSM).
Exiting the Customer Service Mode (CSM)
• Switch the MicroVent off and on again to return to the MicroVent normal operating
mode.
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Service Mode
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