Sartorius Stedim Biotech MD8 airscan Скачать руководство пользователя страница 28 | Manualshive

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Sartorius Stedim Biotech MD8 airscan Скачать руководство пользователя страница 28

7.5. Error messages during air sampling

The MD8 airscan detects 4 different kinds of errors that will cause it to abort an air sampling
procedure in progress (see flow chart 3).

1. The operating temperature of the instrument has reached a critical level
(approx. 65°C above the turbopump). Error message: “overheated device (Enter)”

2. The installed filter is too fine, or the filter is heavily loaded with particles (clogged),
so that the motor output required to reach the selected flow rate is not attainable.
Error message: “clogged filter! (press Enter)”

3. The installed filter is too coarse, or the filter is damaged (torn), so that the required motor
output is too low for the air flow rate. Error message: “filter defect ! (press Enter)”

4. The instrument cannot attain the preset air flow rate or cannot reach it fast enough.
In this case, the air flow rate attained up to the time the air sampling procedure is aborted
is displayed. Error message: “maximum airflow: #.# m

3

/h (Enter)”

7.6 Changing the language (English or German)

When the MD8 airscan is in the initial starting position, i.e. the message “sartorius MD8
ready to start” is displayed, you can call up the calibration menu, which contains the language
setting, with a two-key combination. Press the

⇑

and

⇓

key simultaneously for 3 seconds.

The setting for the dialog language can be moved between German and English by pressing
the

⇑

or

⇓

key. Store the appropriate setting by pressing

Enter

.

All messages in the text display will now be in the language selected.

The setting is maintained after switching off the instrument.

As with parameter entries, pressing the

⇒

key moves you to the next calibration menu point.

On repeated pressing of this key, you return to the menu point “language”.
You can return leave the calibration menu at any time by pressing

Stop

. The MD8 airscan

then returns to the initial starting position.

Details on calibration are given in the next section 8.

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Содержание MD8 airscan

Страница 1: ...85030 511 25 Operating Instructions Air Sampler MD8 airscan Ver 05 2011...

Страница 2: ...Read these operating instructions carefully before switching the instrument on 2...

Страница 3: ...ocedure 30 8 2 Resetting of default values 31 8 3 Service menu 31 3 9 How to use Gelatin Filter Units for air sampling 32 9 1 How to fit a filter unit to the adapter 32 9 2 How to remove a filter unit...

Страница 4: ...e proven air samplers is manufactured for quality by high standard German electrical and precision engineering We are sure that it will provide you with trouble free service for many years Please do n...

Страница 5: ...e and count the resulting number of colony forming units cfu This number is related to the volume sampled to give cfu m3 When the virus concentration is to be determined the gelatin filter must be dis...

Страница 6: ...tarting the system check that the electrical supply is appropriate to that imprinted on the identification label attached to the base of the sampler 5 Ensure that the air outlet exhaust is completely...

Страница 7: ...number 16746 conforms in its design and construction to the requirements of the following standards EN 50081 1 EN 55011 Cl B EN 50082 2 EN 61000 4 2 3 4 6 EN 50204 Status February 1997 This declarati...

Страница 8: ...ent supplied for such damage while unpacking it Check the equipment supplied against the following list to ensure that everything has been correctly delivered and that nothing is left in the packaging...

Страница 9: ...3 h 75 00 l min 5 0 m3 h 83 33 l min 5 5 m3 h 91 67 l min 6 0 m3 h 100 00 l min 6 5 m3 h 108 33 l min 7 0 m3 h 116 67 l min 7 5 m3 h 125 00 l min 8 0 m3 h 133 33 l min Correction of the air When the e...

Страница 10: ...e Residual moisture Approx 46 49 Thickness Approx 250 m Air flow rate per cm2 2 2 3 2 l min at p 0 05 bar Temperature limit 60 C Limiting operating Max 30 C ambient temperature conditions max 85 relat...

Страница 11: ...6 Description of the MD8 airscan The air inlet opening for attachment of a filter holder projects out of the plastic housing Fig 1 at the front of the MD8 airscan Fig 1 11...

Страница 12: ...Fig 2 together with the combination of power plug socket and green on off switch The two fuses 3 15 AT for 230 V and 6 3 AT for 115 V are also situated in this switch An optional remote control interf...

Страница 13: ...operating elements are on the top of the instrument Fig 3 with the LCD on the left of the carrying handle and the membrane covered keypad on the right The use of these is described in section 7 Fig 3...

Страница 14: ...es including a length of flexible hose 17085 or 17662 and a set of connectors 17657 Other accessories such as adapters 17016 or 17030 clamps for sanitary flanges 17033 and filter capsules 5181307T9 SS...

Страница 15: ...Connnecting the hose to the MD8 airscan Press the connecting piece 17658 hose MD8 airscan against the sampled air inlet of the MD8 airscan and turn it clockwise Fig 5 Fig 5 15...

Страница 16: ...Fit one end of the hose e g 17085 onto the hose barb of the connecting piece 17658 and the other end onto the second connecting piece 17659 of the connecting set 17657 Fig 6 Fig 6 16...

Страница 17: ...units 17801 Fig 7 or the filter holder 17655 containing a gelatin membrane filter onto the second connecting piece 17659 by turning it clockwise Fig 7 Use the clamp 17037 and clamp holder 16976 to fi...

Страница 18: ...Fix a gelatin filter unit to the adapter Fig 8 In principle sampling can now be started 18...

Страница 19: ...nd messages are shown on an LCD with 2 16 characters Fig 9 The keys of the keypad have the following functions Selects parameters to be displayed so that values can be checked and changed Enter Stores...

Страница 20: ...the memory chips of the system are checked During this test the message sartorius MD8 selftesting is displayed flow chart 1 Upon successful completion of the selftest the message sartorius MD8 ready t...

Страница 21: ...on Sartorius MD8 self test self test ok Sartorius MD8 Ready to start START KEYS Error Self test not ok Test running Change parameter Change Sample time Change Air flow rate Change Filter class Calibr...

Страница 22: ...and checking or changing parameter settings by pressing the parameter key When is first pressed the message sampling time min is displayed Flow chart 2 Parameter Input 22 Parameter menu Sampling time...

Страница 23: ...ly briefly pressed the value will change by 1 0 1 for air flow rate 0 01 for calibration values If you hold down one of these keys the value displayed will automatically be increased or decreased by 1...

Страница 24: ...ests recalibration When a displayed parameter is changed with the or key the new setting flashes to show it has not been stored If you wish to store the change make sure to press Enter If you exit the...

Страница 25: ...is displayed On pressing the Enter key the initial message sartorius MD8 ready to start is displayed Should it be necessary for you to interrupt sampling ahead of time press the Stop key This stops t...

Страница 26: ...u simply use this key to recall each parameter the same way as when checking or changing the individual parameters one after the other The only difference is that you cannot change the parameter setti...

Страница 27: ...values are displayed but you cannot change them Returns to display mode 10 sec after the key was fast pressed The time that sampling already has taken up until interruption is rounded to minutes and d...

Страница 28: ...to the time the air sampling procedure is aborted is displayed Error message maximum airflow m3 h Enter 7 6 Changing the language English or German When the MD8 airscan is in the initial starting posi...

Страница 29: ...ted Exact details on how to do this are given in section 5 of the operating instructions provided with the calibration unit publication number SL 6051a A complete reference curve for the flow rate sen...

Страница 30: ...his on the MD8 airscan using the or key then confirm and store it with Enter 5 If this is not the last calibration point the next one is automatically called up and process 1 4 is repeated When the 7...

Страница 31: ...ssing of the key must be made while the self testing message is displayed as only then will the display change to delete data Start yes By now pressing ENTER you confirm this and all data will be over...

Страница 32: ...able plastic holder They are individually packed in single or triple bags and presterilized by gamma irradiation Full details are given in the Directions for Use supplied with them publication number...

Страница 33: ...e the seam is located Remove the filter unit by hand touching only the outer edge of the unit Fig 11 and lock it onto the adapter which is either subsequently attached or was previously attached to th...

Страница 34: ...Fig 12 The adapter order no 17801 can be locked onto the air sampler inlet or the hose connector by turning it clockwise either before or after the filter unit is attached Fig 12 34...

Страница 35: ...detach the top part of the filter unit by turning it counterclockwise Fig 14 Invert an agar filled petri dish base over the gelatin filter Fig 15 and make contact so that the gelatin filter can adher...

Страница 36: ...Fig 14 Fig 15 36...

Страница 37: ...Fig 16 Fig 17 37...

Страница 38: ...Fig 18 38...

Страница 39: ...croorganisms After transferring the gelatin filter to the culture medium incubate it with the petri dish lid facing up to avoid condensed water on the lid The relative humidity of the air in the incub...

Страница 40: ...Fig 19 40...

Страница 41: ...er cubic meter of air by relating the colony count obtained to the volume of air sampled cfu m3 We recommend that you plate the gelatin filter on a suitable agar immediately after sampling is complete...

Страница 42: ...prayed with disinfectants or where antibiotic dust could be present subsequent filtration of the solution through an 0 45 m cellulose nitrate membrane filter e g 11406 and rinsing this with an osmotic...

Страница 43: ...onsists of a top and a bottom part Fig 20 The top part fits on the bottom part by turning it clockwise all the way to the stop Before first use clean the parts with hot water If necessary add a little...

Страница 44: ...biological work sterilize the filter holder or assembled stack in a drying oven at 180 C for up to 2 hours Autoclaving is not possible since the aluminium material would corrode on account of the mois...

Страница 45: ...be used on the filter support of the bottom part centering it properly Fig 21 Close the holder with the bayonet catch without damaging or displacing the filter Wrap the holder in aluminium foil or sim...

Страница 46: ...Detach the filter holder containing the exposed filter from the air inlet of the sampler Fig 22 or the connection on the hose and protect it from contamination until the gelatin filter is removed for...

Страница 47: ...sing the aluminium filter stack An aluminium filter stack accessory order no 17656 Fig 23 consists of 10 filter holders fitted together in a stack in which used and unused holders can be separated Fig...

Страница 48: ...e stack place the holders in numerical order and insert the top of the first holder in the intermediate adapter that accepts holders on either side Fig 24 Fit the top of the second holder in the botto...

Страница 49: ...herical retainers be somewhat stiff at any time they can be loosened by using a special alkaline detergent in an ultrasonic bath details on request For microbiological work sterilize in a drying oven...

Страница 50: ...mediate adapter to the top part of the second filter holder Fit the filter holder on the MD8 airscan or the connecting piece 17659 see section 6 After sampling remove the holder used fit it on the oth...

Страница 51: ...25 hose barb to 1 11 Sanitary flange to connect MD8 airscan to an isolator via silicone tubing and a filter capsule 17030 Adapter DN 30 hose barb to 1 11 Sanitary flange to connect MD8 airscan to an...

Страница 52: ...17655 17656 17657 17657 17657 17208 52...

Страница 53: ...17085 17088 17662 16970 16970 16970 53...

Страница 54: ...17801 17016 17030 17033 5185307T9 SS A 54...

Страница 55: ...e polyethlyene bags but label on innermost bag 12602 080 ALK Gelatin disc filters 80 mm diameter pack of 50 presterilized 17528 080 12602 080 ALK Under conditions where gelatin filters cannot be used...

Страница 56: ...itions can differ somewhat in various countries Should no guarantee card be included with the instrument please contact the Sartorius Stedim Biotech subsiduary in your country at the address given on...

Страница 57: ...781 Aubagne Cedex Phone 33 442 845600 Fax 33 442 845619 Sartorius Stedim Italy S p A Via dell Antella 76 A 50012 Antella Bagno a Ripoli FI Phone 39 055 63 40 41 Fax 39 055 63 40 526 Sartorius Stedim J...

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