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BÜCHI

Fat Determination

B-820/B-821

5.2

Operating the unit

The following flow chart shows the operating structure. This is
followed by a systematic description of all the options provided
by this unit.

The unit contains a help program which can be accessed by
pressing the HELP button.

5 Operation

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Содержание B-820

Страница 1: ...bols 7 2 2 Requirements for the customer 7 2 3 Proper use 7 2 4 Improper use 8 2 5 General hazards 8 2 6 Safety measures 9 2 7 Handling of gas cylinders in the laboratory 10 2 8 Modifications 10 2 9 R...

Страница 2: ...on safety which must be observed if the Fat Determi nation Unit is to be operated safely Due to continuous improvement and updating technical spe cifications may be altered without prior notice No par...

Страница 3: ...924 37626 Automatic basic system incl individual Version B 815 B 820 B 821 Total fat order no fatty acids order no 230V 230V 230V 230V 36923 37631 200V 120V 200V 230V 37108 37630 120V 120V 230V 230V 3...

Страница 4: ...umn Fatty Acids 37620 Calibration Set Fatty Acids 37622 EPROM Set manual or automatic Accessories B 820 Manual 1 Soap bubble meter compl 34878 1 Separation column Total Fat 34916 1 Supply line H2 3613...

Страница 5: ...2 Fork spanners w a flats 8 16522 1 Fork spanner w a flats 17 x 19 19831 1 T piece D1 8 36845 1 Jumper cord W VDE 30983 1 Power cable PNE 2 5 m available in the following versions Type CH 10010 Type G...

Страница 6: ...syringe 37067 1 Tubing PUR 1 8 L 3000 1 Foam rubber of neoprene length 100mm Table 4 Accessories Autosampler B 821 Compare with spare parts list of the original operating instructions for the 8200 CX...

Страница 7: ...zards that can arise when using the unit Personnel without such training or persons currently under going a course of training should be trained thoroughly This Instruction Manual should be the basis...

Страница 8: ...f gas cylinders inadequate installation of connections to gas cylinders Apart from authorized maintenance personnel no one is allowed to remove any safety devices and covers Touching live parts may re...

Страница 9: ...anger cannot be ensured any more if the unit shows visible damages the unit does not work any more after long term storage under inadequate circumstances after having been exposed to considerable stra...

Страница 10: ...re Close cylinder valves immediately Cool any overheated cylinder with plenty of water 8 Only keep as many replacement cylinders in the laboratory as are necessary for continuous operation 9 Open cyli...

Страница 11: ...atrices using a gas chromatographic technique It is designed to function with the B chi Extraction Unit B 815 The temperature program and the evaluation function are preprogrammed and have an extremel...

Страница 12: ...tronic Output Main principle 1 Switch on the unit the switch is located on the back of the unit Perform the input steps as described in Section 5 Operation 2 Using a syringe extract some solution from...

Страница 13: ...ration FA calib Determines the retention period for six saturated fatty acids calibration set Fatty Acids Fatty acid factor FA factor Determines the factor that will be necessary for the determination...

Страница 14: ...ection to Autosampler B 821 to adjust your own country s voltage Turntable Pneumatics module Power on off switch Power entry module Carousel support Carousel Injection tower module 3 2 2 Carousel supp...

Страница 15: ...ate the unit are not included in delivery and cannot be ordered from the manu facturer Hydrogen percentage purity 5 0 gas cylinder or central supply Synthetic air gas cylinder or central supply 2 pres...

Страница 16: ...unit If a balance or printer is connected the proper balance or printer type must be entered in the initialization menu under system configuration or printer configuration see Section 5 2 3 System co...

Страница 17: ...anguage LQ Epson Emula tion are supported Epson Canon HP DeskJet HP LaserJet The following printers have been tested at B chi Epson Stylus Color 440 Canon Bubble Jet BJC 600 BJ 200 EX DIP switch setti...

Страница 18: ...s arms Only fill when the unit is turned off and is at room temperature Filling under any other circumstances may lead to system contamination 4 6 Gas connections Gases used Gas function Gas type Sett...

Страница 19: ...the B 820 See Figure 10 Gas connection layout Page 19 Ensure the correct connection of the gas cylinder to the unit The following are included in the B chi delivery H2 connection inc copper capillary...

Страница 20: ...tor on the pressure reducing valve should remain constant for approx 10 minutes The cylinder valves can be reopened once this check is completed The primary pressure the tightness of the supply lines...

Страница 21: ...eration The procedure is the same for the Fatty Acid column Figure 12 Installing the colums The column should be heated only when gas H2 is flowing Prior to operation always ensure that the gas supply...

Страница 22: ...red it can also be carried out manually by pressing key combination SHIFT i From the top of the FID look for red heating coil If the heating coil is defective use a lighter to ignite the FID flame 4 1...

Страница 23: ...he B 820 unit In order to mount the Autosampler on the B 820 unit proceed as follows 1 Place the Autosampler on the mounting plate just mounted Push the Autosampler carefully to cover the position hol...

Страница 24: ...bs down with the other hand Check that the mounting is fully closed before pushing the side locking tabs down It is closed when the red signal tab is not visible 4 Connect the solvent line laterally t...

Страница 25: ...In order to align the syringe needle with the injection head of the B 820 unit proceed as follows 1 Check that the Autosampler is OFF 0 Press down the latch refer to Figure 16 Carousel support of the...

Страница 26: ...n flap Affix it to the top of the B 820 4 11 11 Installing the solvent reservoir bracket The bracket holds two solvent bottles of 180 ml each and is secured on the lower left side of the B 820 unit by...

Страница 27: ...not routed in front of the air flap of the oven in the back of the unit 2 The lines are routed along the bottom of the B 821 unit up to the solvent reservoirs 3 Fill a bottle of n pure butanol or rin...

Страница 28: ...n be operated by turning it on once again The operating panel shows Display Lamp lights up when the unit is ready for an injection or a gas flow measurement Lamp lights up when the determination or pr...

Страница 29: ...command Allows selection of a variety of options e g balances print system frequency etc In the sample weight table pressing the OPTION key copies a field into the next row These keys enable input of...

Страница 30: ...30 B CHI Fat Determination B 820 B 821 Use the keyboard to enter sample identification and report titles and press this key to cancel The key has the same function as this key ENTER 5 Operation...

Страница 31: ...ing the unit The following flow chart shows the operating structure This is followed by a systematic description of all the options provided by this unit The unit contains a help program which can be...

Страница 32: ...FID 260 C Determination with autosampler Determination without autosampler Sample no 5 p H2 55kPa Next number p air p air 50kPa T oven 130 C T inj 220 C Main menu T FID 260 C Ready injection 2 gen cor...

Страница 33: ...onfiguration System configuration Autosampler Main menu Gas flow setup for H2 short column User configuration Printer configuration System configuration Baudrate 9600 Data Bits 8 Stop Bits 1 Parity no...

Страница 34: ...rman French Italian or Spanish Position cursor on User The user name can be entered Position cursor on Unit The following parameters may be chosen g 100g g kg mg kg ppm Only the g 100g unit is activat...

Страница 35: ...will subsequently be printed on each report Position cursor on Online intern Use the OPTION key to activate yes or deactivate no the internal printer to print the result after determination Position c...

Страница 36: ...50 Hz or 60 Hz Column The cursor is positioned on Column Use the OPTION key to select between the fast total fat determination with the short column and the fatty acid determination with the long col...

Страница 37: ...ss the OPTION key to select the number of bits for the transmission Position cursor on Stop bits Press the OPTION key to select 1 or 2 Press the OPTION key to position parity even odd or none Position...

Страница 38: ...es are reached the heating elements begin to heat up The cursor is positioned on Preheating The actual temperature and pressure values are displayed on the right pH2 Actual pressure for hydrogen pair...

Страница 39: ...procedure press the ESCAPE key 5 2 6 Gas flow rate setup If the unit has been turned off for longer than 30 minutes the unit must be preheated for 30 minutes before the gas flow rate setup procedure...

Страница 40: ...ressure must be adjusted accordingly Position the cursor on H2 pressure and enter new value Once the ready LED lights up the flow rate can be remeasured This procedure should be repeated until the set...

Страница 41: ...ould be 2 7 0 1 sec flow rate 20 ml 2 7 0 1 sec 7 If the stopped time deviates from the set time the air pressure value must be adjusted accordingly position the cursor on air pressure and enter new v...

Страница 42: ...watch counting in 1 100 th of a second interval 10 ml Marker 3 20 ml Marker 2 Marker 1 5 Operation Re check the gas flow rate and the supply lines for leakages see Section 4 7 Checking supply lines f...

Страница 43: ...nd the internal standards for the connected balance type Depending on the mode selected the cursor will automatically move to the next available field Preheating p H2 55kPa Sample weight Mode p air 50...

Страница 44: ...e OPTION key Within the column you can move between the fields of each sample number with SELECT You can move to the first sample number No 1 with the key combination SHIFT SELECT upward arrow and to...

Страница 45: ...ace the cursor on Main Menu with SELECT and confirm with ENTER Or press ESCAPE twice after completing the entries to move directly to the Main Menu All the inputs made in Factors must be updated by th...

Страница 46: ...equivalent to a STAND BY mode energy savingmode Ifthesystemfindsitselfin STAND BY after the last determination the display will indicate The determination finished correctly The determination finishe...

Страница 47: ...r sample will be entered under Autosampler in the Setup menu see Chapter 5 2 4 A maximum of 9 injections per sample vial are provided for the Total fat option and a maximum of 6 injections per sample...

Страница 48: ...he set temperatures and pressures have not been reached or as long as Preheating is running the message Wait until ready will be shown on the display In this case no LED will be illuminated or the Run...

Страница 49: ...le Entry of the first sample number of wich the report shall begin Confirm entry with ENTER Last sample Entry of the last sample number of the report Confirm entry with ENTER Start output Start the ou...

Страница 50: ...s and the contents for FA TG Fatty Acid Trigylceride of each injection will be printed out see Fig 21e In all other modes the sample and user data and the results of each injection will be printed out...

Страница 51: ...ion i 1 2 m with m 1 2 75 Fatty acids option i 1 2 m with m 1 2 48 n Number of injections carried out per sample Total fat option n 1 2 9 Fatty acids option n 1 2 6 m Number of samples that should be...

Страница 52: ...desired type of output unit can be selected with OPTION Possible selections OPTION for the device Device Display Display of the data on the display Display is the default setting internal printer pri...

Страница 53: ...number e g 5 1 6 1 the number of the injection e g 5 1 6 1 and the sample name The cursor can be moved to the desired sample name measurement using the SELECT key In the Elim column a measurement can...

Страница 54: ...efined interval first to last sample number After placing the cursor on Clear data confirm the function with ENTER Sample data will be actively cleared and the message Data has been cleared appears Pl...

Страница 55: ...100 injections These can be ordered from B chi When a column is replaced a new septum must be installed Only replace the septum when the unit is turned off The unit must be in a room temperature pres...

Страница 56: ...er No 036678 jet sits inside the FID s base body 7 Clean jet with fine wire and clean the collector if necessary 8 Reinstall FID ensure that all sealings are reinstalled 6 4 Replacing the ignition coi...

Страница 57: ...s at room temperature Filling under any other circumstances may lead to system contamination 6 6 Installing a new separation column Loosen the threaded column joint and carefully remove the old column...

Страница 58: ...uthorized service personnel i e skilled technicians who are familiar with the operating instructions and current safety regulations and accident prevention B chi service centers have instrument specif...

Страница 59: ...or discoloured the syringe must be rinsed once again using a suitable solvent Needle replacement To replace the needle proceed as follows Loosen the knurled nut Remove the old needle from the syringe...

Страница 60: ...k of the unit 7 2 Storage Transport The units should be stored and transported in their original packaging and in clean condition Ensure that the separation column has been removed from the oven of th...

Страница 61: ...arts found in this manual is also prohibited Replacement parts detection unit B 820 Order no Paper roll 26341 Printer ribbon 26400 FID ignition coil 27275 Syringe 10 l 34258 Needle D5 0 18 36654 Gas s...

Страница 62: ...W Current consumption max 9A Ambient temperature 5 40 C Table 10 Technical data B 820 B 821 Unit dimensions 155 x 495 x 400 mm width x height x depth Packaging dimensions 630 x 460 x 680 mm width x he...

Страница 63: ...ernal printer does not function Defective communication between the printer and the electronics Please contact your local B chi Service office or B chi Labortechnik AG see Chapter 6 10 Error 09 The co...

Страница 64: ...e Autosampler B 821 is faulty make one or more injections by hand If the problem remains check the Autosampler While it is frequently assumed that the sampler is defective the problem may rather be ca...

Страница 65: ...ference in which the user will be required to correct the interference at his own expense Fran ais Cet appareil a t test et s est av r conforme aux limites pr vues pour les appareils num riques de cla...

Страница 66: ...c compatibility Generic immunity standard Residential commercial light industry EN 60555 2 1987 IEC 555 2 Disturbances in supply systems caused by hosehold Rotavapors and similar electrical equipment...

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