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11 

2021-01 

7.

 

Measuring process 

 
7.1     Endpoint measurement 
 

The absorbance is measured after reaching the endpoint. 
It is measured against the reagent’s blank count. 
 
Parameters: Haemoglobin SLS (HB SLS), Erythrocytes (ERY), Haematocrit (HCT), 
Haemoglobin (HiCN)  
 
Calculation: Concentration = Absorbance x Factor 
 
The erythrocyte and haematocrit counts are determined using stored reference 
curves. 

 
 
7.2 

Endpoint measurement with consideration of the sample blank value and 
pre-programmed measuring time 

 

After  measuring  the  sample  blank  value,  the  colour  reaction  in  the  cuvette  is 
started  and  the  endpoint  absorbance  is  measured  after  a  specified  time  has 
elapsed. 
 
Parameters:  Bilirubin (BIL), Neonatal bilirubin (BIL N) 
 
Calculation: Concentration = Absorbance x Factor 
Measurement time: 2 Minutes 
  
The samples are measured in succession: 
Sample 01: Measurement 1 (sample blank value) 
Sample 01: Measurement 2 (result) 
Sample 02: Measurement 1 (sample blank value) 
Sample 02: Measurement 2 (result) 
etc. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for Duo Photometer plus DP 210

Page 1: ...1 2021 01 Duo Photometer plus DP 210 Operating Manual Version 5 12 5 12 SI Edition 2021 01 ...

Page 2: ...r an automatic test of the device function has also been integrated Therefore the Duo Photometer plus complies with the requirements of the guidelines of the German Medical Association With the Duo Photometer plus 9 clinical chemical parameters can be determined The device can be supplied with SI units of measurement on request see chapter 9 Technical Data table Measuring Ranges The kits and acces...

Page 3: ... parameter list 8 5 3 Control materials 8 5 4 Laboratory aids and accessories 9 6 Quality control according to the Guideline of the German Medical Association 10 7 Measuring procedure 11 7 1 End point measurement 11 7 2 End point measurement taking the sample s blank value and pre programmed measuring time into account 11 8 Measurement 12 8 1 Switching the device on 12 8 2 Self test when switching...

Page 4: ...nd serum plasma The Duo Photometer plus fulfils the basic requirements of Appendix I of Directive 98 79 EC regarding in vitro diagnostics The conformity of the device with Directive 98 79 EC is confirmed by the use of the CE marking Manufacturer Diaglobal GmbH Innovationspark Wuhlheide Köpenicker Str 325 Haus 41 12555 Berlin Tel 49 0 30 6576 2597 Fax 49 0 30 6576 2517 E Mail info diaglobal de http...

Page 5: ...netic waves Operation on a horizontal surface Please observe the following instructions for use Insert a rechargeable battery or normal battery if the device is to be operated independently of a power supply or connect the photometer to a power supply unit Press the ON ENTER key Fig 1 to activate the internal device check which is automatically carried out by the device The device is then immediat...

Page 6: ...attery compartment cover Connect the battery to the push button contact and insert it into the device Replace the battery compartment cover and screw in the knurled screws Please note The Duo Photometer plus can be operated using a power supply without the need to remove the rechargeable battery or the normal battery The rechargeable battery cannot be charged while it is installed A separate batte...

Page 7: ...le decontaminating solutions commonly used in clinical chemistry laboratories such as Mikrozid AF Liquid Bacillol plus 3 Kohrsolin or similar are recommended for cleaning the device and the surface Before cleaning the unit with a soft cloth and the decontaminating solution it must be switched off and the electrical power supply must be disconnected Make sure that no liquids get into the device The...

Page 8: ... Erythrocytes 40 ERY 142 Haematocrit 40 HCT 142 1 Mini centrifuge required Art no DZ 002 2 From blood with subsequent sample preparation centrifugation with mini centrifuge 5 3 Control materials Art no Description Contents HEM QS Haemoglobin control Haemolysate for correctness and precision control of haemoglobin determination in blood in the normal range 5 x 1 mL ERY QS Erythrocytes and Haematocr...

Page 9: ...s non sterile 100 LH 012 Powder free nitrile gloves size M 200 LH 023 Capillaries 100 µL with ring mark 250 LH 024 Capillaries 20 µL with ring mark 250 LH 031 Microvettes CB 300 100 LH 034 Safety Lancets Neonatal pink 1 2 mm 200 LH 035 Safety lancets extra orange 1 8 mm 200 DZ 002 Mini centrifuge 1 All reagent kits control materials and other materials are supplied by Diaglobal GmbH and can be sto...

Page 10: ...ponding protocol forms are available from Diaglobal free of charge We recommend using the Diaglobal control caps BIL QS to check the accuracy of bilirubin determinations We recommend using the blood control HEM QS and ERY QS with target values in the normal concentration area for checking the accuracy of determinations of haemoglobin haematocrit and erythrocyte counts In agreement with the require...

Page 11: ... 2 Endpoint measurement with consideration of the sample blank value and pre programmed measuring time After measuring the sample blank value the colour reaction in the cuvette is started and the endpoint absorbance is measured after a specified time has elapsed Parameters Bilirubin BIL Neonatal bilirubin BIL N Calculation Concentration Absorbance x Factor Measurement time 2 Minutes The samples ar...

Page 12: ...from the menu with the right or left arrow key HB HB SLS ERY HCT BIL BIL N ABS546 Pressing the right arrow key activates the next test while pressing the left arrow key returns to the previous test The selected test is shown in the upper right corner of the display Confirm test selection with the ON ENTER key 8 4 Switching the device off To switch the device off press both arrow keys simultaneousl...

Page 13: ...uff free cloth is recommended in any case Even if the package is still new and unopened Fingerprints on the cuvette lead to incorrect measurement results 3 If the blood is taken from the heel using the microvette neonatal bilirubin make sure that there is enough blood approx 60 µL in the microvette as 20 µL serum plasma is needed for the measurement Close the microvette well after taking the blood...

Page 14: ...arefully wiped on the outside with a cellulose swab to remove sample particles attached to the capillary Otherwise this would lead to incorrect positive measurement results 10 With the help of the micropipetter the sample is completely transferred into the cuvette The complete transfer of the sample is done by ejecting it several times with the help of the push button on the micropipetter Please n...

Page 15: ...ligible Interface V24 9600 8 n 2 Power supply 6 V 12 V DC Current consumption max 250 mA Warm up time 0 min Interference suppression According to DIN VDE 0871 and DIN VDE 0875 Inaccuracy 0 5 at A 1 000 Relative photometric short time standard deviation 0 1 Measuring ranges DP 210 DP 210 SI Haemoglobin HiCN method 0 0 50 g dL 0 0 31 mmol L Haemoglobin SLS method 0 0 50 g dL 0 0 31 mmol L Erythrocyt...

Page 16: ...irements Part 2 6 Particular requirements In vitro diagnostic IVD medical equipment 9 EN 592 Instructions for use for in vitro diagnostic instruments for professional use National directives and recommendations Germany 10 Guidelines for Quality Assurance of Laboratory Examinations of the German Medical Association of 23 12 2019 Note on electromagnetic compatibility a The photometer meets the requi...

Page 17: ...ss ON ENTER key Wait for device check and confirm with ON ENTER 2 Select test Press arrow key until required test appears 3 Confirm required test Press ON ENTER 4 Switch off Press both arrow keys at the same time Note If SERVICE appears in the display after the device check the device has a defect In this case please contact our customer service at 49 0 30 6576 2597 ...

Page 18: ...ap on Turn cuvette upside down several times 5 Zero point adjustment Insert cuvette with sample Fig 3 into photometer zero point is stored in memory Remove cuvette after signal tone 4 Switch photometer on with ON ENTER key Wait for device check confirm with ON ENTER Select the required test confirm with ON ENTER 6 Replace screw cap with starter cap ON ENTER ON ENTER BIL Sample 01 insert 9 Time is ...

Page 19: ...he lancet take about 60 µL of blood approx 1 drop from the heel with the microvette Note Close the microvette carefully before placing it into the mini centrifuge 2 Insert microvette into mini centrifuge Centrifugate for 3 5 minutes Note Ensure an even loading inside the mini centrifuge 3 Take 20 µL plasma from the microvette Continue with Fig 1 on the previous page Mini centrifuge Art No DZ 002 M...

Page 20: ...ro point adjustment Insert an unprocessed cuvette from package into photometer Zero point is stored in memory 4 Switch photometer on with ON ENTER key Wait for device check confirm with ON ENTER Select the required test confirm with ON ENTER In regard to series measurement After zero point setting any number of additional samples can be measured ON ENTER ON ENTER HB SLS Insert blank Zero HB SLS 0 ...

Page 21: ...est you want to check Mix well Now the cuvette contains a sample with a known concentration 3 Leave the cuvette for 1 minute 4 Switch photometer on with ON ENTER key Wait for device check confirm with ON ENTER Select the required test confirm with ON ENTER 6 Replace control cap with starter cap ON ENTER GLU 8 First press ON ENTER then insert cuvette into photometer Wait for measured value Compare ...

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