Guide
8 Pages
Preview
Page 1
Changing the Mouthpiece on Flow Sensor SP-250 The disposable mouthpiece of the SP-250 is designed for one-time use to eliminate the danger of cross contamination - do not use the mouthpiece for more than one patient. 1. 2. 3.
Remove the disposable mouthpiece by pulling it away from the handle. Discard the complete mouthpiece. Position the new disposable mouthpiece (Part No. 2.100077), and gently but firmly click it in position.
Note:
The disposable mouthpiece can only be positioned in one direction and no force is necessary to insert it on the handle. Ensure that the orientation is correct by checking the guide protrusion on the sensor against the guide slot in the handle
Changing the Filter on Flow Sensor SP-260 Change the filter and sterilise the mouthpiece after every patient to eliminate the danger of cross contamination - do not use the filter for more than one patient. 1.
Remove the mouthpiece by gently twisting and sliding it away from the handle. The mouthpiece can only be removed in one direction.
2. 3.
Unscrew the mouthpiece and discard the filter. Thoroughly disinfect the two halves of the mouthpiece. Use hospital grade disinfectant for sterilising.
4.
Position a new filter (Part No. 2.100123) in the threaded half of the mouthpiece as shown.
5.
Screw the two halves of the mouthpiece together. Ensure the filter is firmly held with no air gaps.
6.
Insert the mouthpiece in the handle.
Note: The mouthpiece can only be positioned in one direction. A moulded lip in the mouthpiece prevents incorrect insertion.
SP-250/SP260 Instruction and AT-2plus Spiro and AT-102 calibration
SCHILLER AG 2002; Art. No. 2. 510 338c
Maintenance Cleaning the Sensor Handle. Disconnect the sensor from the unit before cleaning. Do not, under any circumstances, immerse the apparatus into a cleaning liquid or sterilize with hot water, steam, or air. The casing of both sensors and cable assembly can be cleaned with a soft damp cloth on the surface only. Where necessary a domestic non-caustic cleaner can be used for grease and finger marks. Sterilization, if required, should be done with gas only and not with steam. To disinfect, wipe with hospital standard disinfectant.
Cable Care Prevent the possibility of anyone stumbling over the cable; store and use with care. To ensure cable longevity, prevent damage by people stepping on it or running the wheels of instrument carts over it. Do not expose the sensor cable to excessive mechanical stress. Whenever disconnecting the cable, hold the plug and not the cable.
SP-250/SP260 Instruction and AT-2plus Spiro and AT-102 calibration
SCHILLER AG 2002; Art. No. 2. 510 338c
Calibration for AT-2plus Spiro The unit must be calibrated with the first pulmonary function test of the day and after every significant temperature change and after changing the sensor assembly.
Select the calibration menu option. The following screen is displayed:
ALT then
>
25
8
Last Calibration date of last calibration BTPS Factor
Last calib. BTPS Factor Gain Factor Temperature Measured volume Syringe Vol. Deviation
: : : : : : :
6.01.00 1.090 1.002 70 oF 0.00 l 3.00 l %
calculated Body Temperature, Ambient Pressure, Saturated with water vapor value. This value compensates for the difference in inhaled and exhaled humidity. The unit is set for measuring exhaled volume (100% humidity, Temp 36.8o), and this factor is applied when inhaled volume is measured. The unit uses the ambient temperature to calculate the BTPS factor. This is sufficient for accurate FIVC calculation. The formula used is as follows: BTPS = 0.033 + 273.15 K + 36.8 °C 273.15 K + Tu °C
Where:
Tu is the ambient temperature in degrees centigrade 0.033 is the equivalent of 760mmHg at 22oC 273.15 Kelvin = 0o C
Gain Factor
calculated calibration factor between measured volume and actual volume.
Temperature
ambient temperature in oF (or oC) dependent on device setting.
Measured Volume
air volume measured by the system from the calibration pump.
Syringe Volume
reference value of the entered air volume depending on the size of the calibration pump and the number of times the air was pumped through the sensor; e.g. pumping 2 litres 3 times amounts to 6 litres (the recommended volume with a 2 litre pump is 4 litres and with a 3 litre pump 3 litres).
Calibration Procedure °
Connect the calibration pump to the sensor. Ensure that there are no air leaks.
°
In the screen above enter the ambient temperature and press ENTER.
°
Press the AUTO PRINT key.
°
Wait 1 second.
°
Pump 3 to 4 litres of air through the sensor. Note:
Make sure that the flow sensor is kept still during the pumping operation.
While pumping, the unit records the volume being pumped through the flow sensor and indicates it on the display. °
Press the STOP key when finished pumping.
°
Enter the reference (syringe) volume of air (dependent on the size of the calibration pump and times of pumping).
°
Press the ENTER key to accept.
°
The message `Calibration Complete` appears on the display.
°
Press the COPY key after calibration to obtain a printout of the calibration report with measurement details and time and date of calibration.
If the message `EXCESSIVE DEVIATION CHANGE SCREEN` appears on the screen after a calibration, it indicates that the difference between the measured volume and the entered volume is too great to perform an accurate calibration. Check the temperature setting and the entered syringe volume. If these are correct change the disposable mouthpiece and recalibrate. Before recalibrating, the stored calibration values must be reset: to do this press the `ALT` key then the `I` key. If calibration is still not possible, or for any other questions please contact the SCHILLER service department
SP-250/SP260 Instruction and AT-2plus Spiro and AT-102 calibration
SCHILLER AG 2002; Art. No. 2. 510 338c
Calibration for AT-102 Spiro The unit must be calibrated with the first pulmonary function test of the day and after every significant temperature change.
Press the Calibration softkey from the spiro screen
The following screen is displayed:
Last Calibration date of last calibration BTPS Factor
calculated Body Temperature, Ambient Pressure, Saturated with water vapor value. This value compensates for the difference in inhaled and exhaled humidity. The unit is set for measuring exhaled volume (100% humidity, Temp 36.8o), and this factor is applied when inhaled volume is measured. The unit uses the ambient temperature to calculate the BTPS factor. This is sufficient for accurate FIVC calculation. The formula used is as follows:
BTPS
=
Pb - PH2O Pb - 47 °C
Calibration Factor Temperature Measured Volume Reference Volume
Deviation
x
273.15 K + 37 °C 273.15 K + Tu °C
Where: 273.15 K = 0 °C Pb
= 716mmHg at 500 metres above sea level
PH2O Tu
= the vapour pressure of water [mmHg] = the ambient temperature in degrees centigrade
Calculated value between measured and effective calibration air volume Ambient temperature in oC (or oF) dependent on device setting Air volume measured by the system from the calibration pump Entered air volume depending on the size of the calibration pump and times the air was pumped through the sensor; e.g. pumping 2 litres 3 times amounts to 6 litres (the recommended volume with a 2 litre pump is 4 litres and with a 3 litre pump 6 litres) Deviation percentage as a factor calculated between measured and effective calibration air volume
Calibration Procedure To calibrate the unit proceed as follows: °
Position a new mouthpiece in the sensor
°
Connect the calibration pump to the mouthpiece. Ensure that there are no air leaks.
°
Press the `NEW CALIB` softkey.
°
Enter the ambient temperature.
°
Press the enter key to confirm ambient temperature.
°
Press the start key. Pump 3 to 6 litres of air through the sensor. Note:
Make sure that the flow sensor is kept still during the pumping operation.
While pumping, the unit records the volume being pumped through the flow sensor and indicates it on the display. °
Press the STOP key when finished pumping
.
°
Enter the reference volume of air (depending on the size of the calibration pump and times of pumping; e.g. a 2 litre pump pumped 3 times = 6 litres).
°
Press the enter key to confirm.
°
The message‚ `Calibration complete` appears on the display
If the message `EXCESSIVE DEVIATION!` or `CHANGE THE FILTER` appears on the screen after a calibration, it indicates thatthe difference between the measured volume and the entered volume is too great (>12%). Check the temperature setting, the syringe volume and the entered syringe volume. If these are all correct change the disposable mouthpiece and recalibrate. SP-250/SP260 Instruction and AT-2plus Spiro and AT-102 calibration
SCHILLER AG 2002; Art. No. 2. 510 338c