GE S5 Service Manual

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                                          Document no. M1031519-01
Table 3 Module hardware status
Module keyModule keyboard status. See Table 4 Module keyboard status for a detailed description of the 
message.
Table 4 Module keyboard status
Error Statuses (HEX):
General errorModule general error status. See Table 5 Module general error status for a detailed description of the 
message.
Table 5 Module general error status
Pneuma errorModule pneumatics error status. See Table 6 Module pneumatics error status for a detailed 
description of the message.
bit 0 Lamp ON
bit 1 Stepper motor ON
bit 2 Zeroing valve ON
bit 3 Pump valve ON
bit 4-15 Not used
bit 0 Button 1 (start/stop) pressed
bit 1 Button 2 (Lab.Data) pressed
bit 2-15 Not used
Bit Description What to do
bit 0-1 Not used. -
bit 2 Zeroing error. Zero gas signal out of limits or pressure 
or temperature signal varying during measurement.CO
2 sensor faulty. Send the 
module to the factory for 
repair.
bit 3 CO
2 measurement error. CO2 signal out of limits or 
pressure or temperature signal varying during 
measurement.CO2 sensor faulty. Send the 
module to the factory for 
repair.
bit 4 Measurement error. Sensor temperature, 
measurement pressure or absorbance is out of limits.CO
2 sensor faulty. Send the 
module to the factory for 
repair.
bit 5 Calibration error. Failure in calibration. Recalibrate.
bit 6 Pneumatic error. See pneumatic error status 
bits for details.
bit 7 Lamp pulsing error. CO
2 sensor faulty. Send the 
module to the factory for 
repair.
bit 8-15 Not used. - 
						

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Document no. M1031519-01                                                                           
Table 6 Module pneumatics error status
HW errorModule hardware error status. See Table 7 Module hardware error status for a detailed description of 
the message. Bit Error label Description What to do
0 pumping error Stepper motor is not able to generate 
negative pressure at the pump 
pressure sensor during zeroing.Check the function of the stepper 
motor.
1 eq. to amb. press failed Before filling the catheter, the pressure 
in the module tubing is equilibrated to 
the ambient pressure by switching the 
pump valve on and off. If ambient 
pressure is not reached, this error is 
shown.Calibrate the pressure sensors. Check 
the pump valve function.
2 tubing/zero block occl Pressure at the pump pressure sensor 
gets too low, when air is aspirated 
though the zeroing valve.Check tubing/valves for occlusion.
8 press sens values differ Pump pressure and catheter pressure 
readings differ more than 50 mbars.Calibrate the pressure sensors.
9 pneuma fatal error This error is shown, if the pneumatic 
error occurred is considered fatal.Check for other pneumatics errors.
10 cath press too low Catheter pressure reading is below 
reasonable pressure values.Make sure that you are not applying too 
low pressure to the catheter connector. 
Calibrate the pressure sensors.
11 cath press too high Catheter pressure reading is above 
reasonable pressure values.Make sure that you are not applying too 
high pressure to the catheter connector. 
Calibrate the pressure sensors.
12 pump press too low Pump pressure reading is below 
reasonable pressure values.Make sure that you are not applying too 
low pressure to the catheter connector. 
Calibrate the pressure sensors.
13 pump press too high Pump pressure reading is above 
reasonable values.Make sure that you are not applying too 
high pressure to the catheter connector. 
Calibrate the pressure sensors. 
						

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                                          Document no. M1031519-01
Table 7 Module hardware error status
TestbitTestbit is a module production phase test status and is always 0000 (HEX). If the testbit status is ≠ 
0000, then the module should be returned to the factory.
Voltages Vdd; 5 V digital units driving voltage received from the module frame.
5vdc; 5 Volts of the module derived internally from 15vdc.
15vdc; 15 Volts of the module received from the module frame.
Pneuma voltage; 15 V voltage driving pneumatic elements of the module, derived from 15V dirty.
15V dirty; 15 V voltage received from the module frame.
bit 0 Lamp error
bit 1, 2, 3 not used
bit 4 CPU EEPROM error
bit 5 Sensor EEPROM error
bit 6 Internal AD converter error
bit 7 External AD converter error
bit 8 CO
2 termopile error
bit 9 Reserved
bit 10 Temperature detector error
bit 11 Pump pressure sensor error
bit 12 Catheter pressure sensor error
bit 13 Pneumatic power failure
bit 14-15 Not used 
						

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Document no. M1031519-01                                                                           
4.12.1 Tonometry
This is another route to reach Tonometry setup menu, Others - Tonometry. For a detailed description 
on how to use this menu see “User’s Reference Manual”.
How to calibrate PgCO2 
1. Connect the calibration gas sampling line to the regulator and to the module’s catheter 
connector.
2. Select  PgCO2 Calibration. 
3. Wait until the text ‘Start feeding gas and press ComWheel. Feed gas until Adjust message is 
displayed’ appears. Open the regulator and start feeding gas. Press the ComWheel and 
continue feeding gas until the text ‘Adjust’ appears on the display.
4. Check that the displayed values match the values on the calibration gas container. Adjust with 
the ComWheel, if necessary.
5. If airway gases are monitored, it is recommended to calibrate the airway gases at the same 
time.
Start / Stop Cycling is for starting or stopping the 
measurement.
Display with PgCO2 is for defining the calculated value 
displayed with PgCO2. The choices are Pg-Pa, Pg-ET or 
pHI.
Lab Data is for entering the blood gas values nad 
calculations.
PgCO2 Calibration is for calibrating the tonometry.
PgCO2/Pg-ET Alarms is for disabling/enabling alarms 
and adjusting the alarm limits. 
						

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                                          Document no. M1031519-01
4.12.2 Press Sensor 
Start Calib.: A selection to start a module pressure 
sensor calibration sequence. The procedure is guided 
online.
Record Data: A selection to print out the shown service 
data to the device defined in the ...Service - Record 
Data menu.
TONO service data
Amb Press; ambient pressure measured by the pressure 
sensor. All the pressure values are given in both mmHg 
and mbar on this page.
Pump Press; pressure measured from the pumping unit.
Cath Press; pressure measured from the catheter line.
User Cal Press; pressure that the user sets during the 
calibration sequence according to the pressure that is 
applied to the catheter port. The set value should be 
close to 100 mmHg.
User Amb Press; pressure that the user sets during the calibration sequence according to the current ambient 
pressure in the room.
Store; a selection for storing/discarding the newly gained calibration values.
Last Press calibration date; data read from the module that tells when the module has last been calibrated. 
						

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Document no. M1031519-01                                                                           
4.12.3 System Test
Table 8 Description of system test
Test label Description If test fails
Pump unit function Stepper motor aspirates/pushes room air 
through the zeroing valve. If the stepper is 
working properly, it is able to generate small 
negative/positive pressure at the pump unit 
pressure sensor. Check the function of stepper 
motor.
Cath press = pump press Pump pressure sensor and catheter pressure 
sensor readings are compared at three 
pressures: at ambient pressure, at approx. +100 
mbar and –100 mbar. Calibrate the pressure sensors.
Tubing leak test The air tightness of the module inner tubing from 
the zeroing valve to the pump valve is tested. Check tubing and connections 
for leaks.
Pump unit leak test The air tightness of the pump unit is tested. Check pump unit for leaks.
Start Test: A selection to start the automatic system test 
sequence. The procedure is guided online.
Stop Test: A selection to stop the automatic system test 
sequence.
Record Data: A selection to print out the shown service 
data to the device defined in the ...Service - Record 
Data menu.
TONO
Cathpres; pressure measured from the catheter line 
[mbar].
Ambpres; ambient pressure in the room [mbar].
Pumppres; pressure measured from the pumping unit 
[mbar].
System test results; detailed information of the test 
results of different system parts. The meaning of the 
messages:
- “OK”, the part successfully passed the test 
- “FAIL”, the part failed in the test
- “N/A”, the test could not be carried out properly.
See Table 8 Description of system test for a detailed description of the tested parts. 
						

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                                          Document no. M1031519-01
Cath conn. leak test The air tightness of the zeroing unit and catheter 
connector is tested.Make sure that the catheter 
connector is properly closed 
during the test. Check the zeroing 
unit and the catheter connector 
for leaks.
Block test  Air is aspirated through the zeroing valve. If 
pressure at the pump pressure sensor drops too 
much, the tubing/valves from the zeroing valve 
to the pump pressure sensor is blocked.Check the tubing/valves for 
blocks.
Zero valve function Module pneumatic system pressurized and then 
the zeroing valve is opened to room air. If the 
pressure does not drop, the zeroing valve may 
not be functioning.Check the function of the zeroing 
valve.
Pump valve function Module pneumatic system pressurized and then 
the pump valve is opened to room air. If the 
pressure does not drop, the pump valve may not 
be functioning.Check the function of the pump 
valve. Test label Description If test fails 
						

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Document no. M1031519-01                                                                           
4.12.4 CO2 Sensor
Lamp ON/OFF: A selection to toggle the sensor lamp on 
and off.
Meas Signal: A selection to start an automatic signal 
measurement sequence. This sequence measures 
sensor lamp signal levels.
Meas Zero: A selection to start an automatic zeroing 
measurement sequence.
Meas Gas: A selection to start an automatic gas 
measurement sequence. This sequence first performs 
the zeroing measurement. Then it measures the CO
2 
concentration of the sample of arbitrary gas aspirated 
from the catheter port.
Record Data: A selection to print out the shown service 
data to the device defined in the ...Service - Record 
Data menu.
TONO
Calib gain; CO2 measurement gain factor that is set in 
calibration.
Lamp on current; sensor lamp current when lit.
Lamp off current; sensor lamp current when off.
Block temp; sensor temperature [°C] (in degrees centigrade).
Detector offset; CO
2 detector offset voltage.
Lamp status; displays whether the sensor lamp is on or off.
CO2 AD; signal from CO
2 sensor thermopile (AD counts).
CO2 signal; thermopile signal maximum – minimum when the lamp is blinking (AD counts).
CO2 zero; thermopile signal maximum - minimum during sensor zeroing when the lamp is blinking (AD counts).
CO2 absorbance; calculated light absorbance during CO
2 measurement.
CO2 concentration; CO
2 concentration (%) in sensor (does not include compensations related to catheter 
measurement).
MEAS TEMP; CO
2 sensor temperature during signal measurement [°C].
MEAS PRESS; CO
2 sensor pressure during signal measurement [mbar].
ZERO TEMP; CO
2 sensor temperature during zeroing measurement [°C].
ZERO PRESS; CO
2 sensor pressure during zeroing measurement [mbar]. 
						

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                                          Document no. M1031519-01
4.12.5 Pneumatics
Zero valve: A selection to toggle the zero valve on/off.
Press valve: A selection to toggle the pump valve on/off.
Record Data: A selection to print out the shown service 
data to the device defined in the ...Service - Record Data 
menu.
TONO
Cathpres; pressure measured from the catheter line 
[mbar].
Ambpres; ambient pressure in the room [mbar].
Pumppres; pressure measured from the pumping unit 
[mbar].
Pneuma Power; displays whether electricity has been 
connected to the pneumatics system or not.
Zero valve; displays whether the zero valve is on or off.
Pump valve; displays whether the pump valve is on or off.
Gas removed count; displays how many times gas is 
removed from the catheter during a measurement cycle.
Pneumatic errors; detailed information of the performance of different pneumatics system parts. 
The meaning of the messages:
‘NO’, the part performed OK during the measurement = ‘this error did not occur’
‘YES’, the part failed during the measurement = ‘this error did occur’
See Table 6 Module pneumatics error status for a detailed description of the messages. 
						

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Document no. M1031519-01                                                                           
4.12.6 AD
Record Data: A selection to print out the shown service 
data to the device defined in the ...Service - Record 
Data menu.
TONO
All the numbers in this section are AD counts, i.e. 
computer internal data.
EXTERNAL ADC
CO2; CO
2 sensor CO2 signal.
temp; CO
2 sensor temperature signal.
cath press; pressure measured from the catheter line.
pump press; pressure measured from the pumping unit.
INTERNAL ADC
VDD; 5 V digital units driving voltage received from the 
module frame.
5V; 5 Volts of the module derived internally from 15vdc.
15V; 15 Volts of the module received from the module frame.
pneuma voltage; 15 V voltage driving pneumatic elements of the module, derived from 15 V dirty.
CO2 det offset; CO2 detector offset voltage.
lamp current; CO2 sensor lamp current.
15V dirty; 15 V voltage received from the module frame.