1. Manuals
  2. Brands
  3. Analytik Jena Manuals
  4. Laboratory Equipment
  5. novAA 800
  6. Operating manual

Analytik Jena novAA 800 Operating Manual

Atomic absorption spectrometer
Hide thumbs Also See for novAA 800:
Table of Contents

Advertisement

Quick Links

Operating Manual
novAA 800
Atomic Absorption Spectrometer

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the novAA 800 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Analytik Jena novAA 800

Summary of Contents for Analytik Jena novAA 800

  • Page 1 Operating Manual novAA 800 Atomic Absorption Spectrometer...
  • Page 2 Phone + 49 3641 / 77-7407 (Hotline) Email service@analytik-jena.de http://www.analytik-jena.com General information novAA is a registered trademark of Analytik Jena AG. Copyrights and Microsoft and Windows are registered trademarks of Microsoft Corp. Trademarks The identification with ® or TM is omitted in this manual.

  • Page 3: Table Of Contents

    800 Contents Contents Basic information ......................7 Notes on this user manual ..................7 Intended use ....................... 8 Warranty and liability....................8 Safety instructions ......................9 General notes ......................9 Safety labeling on the device ..................9 Requirements for the operating personnel ............... 11 Safety instructions, transport and installation ............
  • Page 4 Installing the injection module SFS 6 ................ 81 4.10.6 Replacing the burner ....................82 4.10.7 Installing the scraper....................82 4.11 Starting up the novAA 800 with accessories ............. 83 4.11.1 Switching on sequence ....................83 4.11.2 Switching off sequence ..................... 84 Service and maintenance ....................85 Maintenance overview ....................
  • Page 5 Fig. 20 Dimensions of the novAA 800 – front view ..........45 Fig. 21 Dimensions of the novAA 800 (with AS-FD and Fluidics module) .... 45 Fig. 22 Dimensions of the novAA 800 (with autosampler AS-GF) ......46 Fig. 23 Installation diagram novAA 800 with exhaust unit ........
  • Page 6 800 Fig. 25 Supply and control connection panel ............49 Fig. 26 Rear view novAA 800 with connections and fuses ........49 Fig. 27 Fuses and electrical connections ..............50 Fig. 28 Gas and cooling water connections .............. 50 Fig.

  • Page 7: Basic Information

     novAA 800 F for flame technique  novAA 800 G for graphite furnace technique In this manual all these devices are collectively called novAA 800. Any differences be- tween the models are explained in the relevant section. Unless otherwise stated, the device shown on the illustrations is the combined device novAA 800 D.

  • Page 8: Intended Use

    For the hydride technique and the HydrEA technique (used for coupling with the graphite furnace) there are hydride systems for batch and continuous operation. The novAA 800 may only be used for atomic absorption spectrometry with the tech- niques described in this manual. Any departure from the instructions for proper use may lead to warranty restrictions and reduced manufacturer liability in the case of damage.

  • Page 9: Safety Instructions

    References to potential dangers do not replace the work protection regulations which must be observed. Safety labeling on the device Warnings and information symbols have been attached to the novAA 800 which must always be observed. Damaged or missing warnings and information symbols can cause incorrect actions...

  • Page 10: Fig. 2 Safety Markings On The Front And Side Panels Of The Device

    Caution! Disconnect AC line before removing Warning only for novAA 800 D + G cover. Before opening the device hood switch off the Changing mains fuse only by authorized device and disconnect the mains plug from the personnel.

  • Page 11: Requirements For The Operating Personnel

    Safety instructions, transport and installation Observe the following notes:  The novAA 800 is always installed by the service department of Analytik Jena or by specialist personnel that was authorized and trained by Analytik Jena. Independent assembly and installation are not permitted. Incorrect installation can create seri-...

  • Page 12: Safety Instructions For Operation

    Safety instructions for operation  Prior to starting up the device, the operator of the novAA 800 must verify the proper condition of the device including the condition of its safety equipment. This applies in particular after each modification or extension of the device or its repair.

  • Page 13: Hazards Associated With The Operation Of The Flame And The Graphite Furnace

    The power strip is still energized, even when the novAA 800 is switched off at the mains switch on the right side wall. The power strip socket to which the novAA 800 is connected is protected by a fuse in both wires, one in the L conductor (line) and one in the N conductor (neutral).

  • Page 14: Safety Instructions Relating To The Formation Of Ozone And Toxic Vapors

     Do not wear any metallic jewelry (especially around the neck) when working with the novAA 800 D and G. Not observing this instruction may cause a short circuit in the electrically heated furnace. In case of a short circuit, the jewelry may become very hot and cause burns.

  • Page 15: Handling Of Samples, Auxiliary And Operating Materials

    (laboratory coat, safety goggles and rubber gloves) when handling samples.  The novAA 800 must only be operated under an activated laboratory exhaust hood (hazards arising from the formation of ozone, combustion gases produced by the samples, poisonous and combustible by-products from sample preparation pro- cesses).

  • Page 16: Decontamination In Case Of Biological Contamination

     If there is no immediate risk of injury, in hazardous situations or in case of acci- dents, immediately switch off the novAA 800 using the mains contactor on the right side wall of the device. Disconnect the mains plug from the mains socket.

  • Page 17: Safety Instructions: Service And Repair

    "Service and maintenance" on page 85.  The exterior of the novAA 800 must only be cleaned with a damp – not dripping – cloth. Use only water and, if required, customary surfactants.

  • Page 18: Function And Setup

    Fig. 3 Sample chamber of the novAA 800 D In the combined device novAA 800 D the flame atomizer and the graphite furnace are both attached to a bracket on the height adjustment that can be tilted by 60°. Tilting the bracket forwards into locking position puts the graphite furnace into the optical axis.

  • Page 19: Optical Principle

    Function and setup chamber is factory preset and may be adjusted manually for the flame atomizer using an adjustment screw. The novAA 800 F (flame) and the novAA 800 G (graphite) are both equipped with one atomizer. Fig. 4 Sample chamber of the novAA 800 F The core element of the graphite furnace mode is a closed, transversely heated graph- ite furnace into which the samples are loaded from the top.

  • Page 20: Fig. 5 Optical Diagram Of The Novaa 800

    (item 5 in Fig. 5) with 90° reflection sector and transmission sector brings the sample and reference beams together. For the graphite furnace technique with D background correction, the novAA 800 is operated as a single-beam instrument. Fig. 5 Optical diagram of the novAA 800...

  • Page 21: Measurement Principle

    The formation of the difference between the two signals gives the element-specific absorption. In flame mode, the novAA 800 can be used both as a single-beam and as a double- beam instrument. For the hydride technique the unit is used as a single-beam device because a zero calibration is performed immediately before the integration period.

  • Page 22: Electrothermal Atomizer

    Function and setup novAA 800 A second heat circuit ensures that a second HCL can be preheated at the same time. The continuum radiator, a deuterium hollow cathode lamp (D -HCL), is installed in a separate bracket (item 2 in Fig. 31 on page 54).

  • Page 23: Fig. 7 Graphite Furnace In The Sample Chamber

    The operator has the option to optimize these basic steps for each analysis problem with the ASpect LS control software. A safety circuit prevents the graphite furnace in the novAA 800 from continued and uncontrolled heating in case of a communication failure between the control (PC) and...

  • Page 24: Graphite Tube Furnace

    ≥100 °C. This prevents damage to the device resulting from continued heating of the furnace. Once the cooling water temperature has fallen below the shutdown temperature, the novAA 800 can be switched back on and re-initialized. 3.5.1 Graphite tube furnace The transversely heated graphite tube is pneumatically pushed against circular elec- trodes and held in this position.

  • Page 25: Gas Flows In The Furnace Shroud

    800 Function and setup 3.5.2 Gas flows in the furnace shroud The furnace shroud houses the gas channels for the separate supply of the primary gas flow (purge gas) and the outer gas flow (protective gas). It is possible to add oxidizing and reducing gases to the mixture of the inner gas flow to support the pyrolysis.

  • Page 26: Graphite Tube Variations, Furnace Parts And Inserts

    Function and setup novAA 800 1, 4 Cylinder for furnace windows 2, 3 Support: cone attachment Fig. 10 Graphite furnace shroud 3.5.3 Graphite tube variations, furnace parts and inserts There are two graphite tube models: the standard graphite tube (wall-type tube) and the graphite tube with PIN platform.

  • Page 27: Radiation Sensor

    800 Function and setup Fig. 12 Furnace shroud, adapters and inserts Furnace Part / Insert Function Pipetting insert Funnel opening to the pipetting channel Adjusting aid Adjusting the autosampler AS-GF Electrode (2 per furnace) Electrical contact to the tube wing...

  • Page 28: Mobile Cooling Unit Km 5

    3.6.2 Mobile cooling unit KM 5 The graphite tube furnace of the novAA 800 is cooled by the mobile cooling unit KM 5 via a circulating cooling system. The working principle is an air-cooled heat exchanger with fan. The cooling water temperature is preset to 35 °C. The cooling unit can only...

  • Page 29: Flame System

    800 Function and setup cool effectively, if the preset value is at least 7 °C above room temperature. The maxi- mum set point value is 50 °C. The KM 5 has to be filled with 5 L of softened water (not distilled water). For installa- tion and initial start-up of the device, please observe the information provided in the separate operating instructions of the mobile cooling unit KM 5.

  • Page 30: Burner-Nebulizer System

    Function and setup novAA 800 3.7.2 Burner-nebulizer system The nebulizer uses the sample solution to generate the aerosol required for the atomi- zation in the flame. The oxidant passes the lateral connection to enter the nebulizer and flows through the ring-shaped slit formed by the corrosion-proof platinum- rhodium alloy cannula and the PEEK nozzle.

  • Page 31: Fig. 14 Nebulizer-Mixing-Chamber-Burner-System

    800 Function and setup Fig. 14 Nebulizer-mixing-chamber-burner-system Burner Siphon sensor connection Fixing screw for burner 10 Siphon Fuel gas supply 11 Siphon sensor Screw joints of mixing chamber parts 12 Mixing chamber head Locking ring for nebulizer 13 Auxiliary oxidant supply...

  • Page 32: Burner And Flame Type

    (pointing backwards) 10 Siphon sensor 3.7.3 Burner and flame type The novAA 800 can be operated with the following types of flames and their corre- sponding burners:  Acetylene-air flame with 50-mm-single-slit burner (universal burner) or 100-mm-single-slit burner for higher sensitivity ...

  • Page 33: Sensors

    Manual or automatic sample supply can be employed for the flame technique and for the mercury-hydride technique. Automatic operation and multi-element analysis re- quires the use of an autosampler. The control software of the novAA 800 sets the parameters and controls the functioning.

  • Page 34: Fig. 17 Autosampler As-Fd With Separate Fluidics Module

    (5000 µL). The Fluidics module is electrically connected to the autosampler and is supplied with operating voltage via the novAA 800. Standards or samples are diluted in the mixing cup by first placing the concentrate into the mixing cup. Then the diluent is added at a high dosing speed (max.

  • Page 35: Piston Compressor Planet L-S50-15

    If no in-house compressed air supply is available, a compressor should be used to pro- vide the compressed air for the acetylene-air flame. Analytik Jena offers the piston compressor PLANET L-S50-15 as an optional accessory. The compressed air is free from water, dust and oil. At a maximum operating pressure of 800 kPa and with a 15-L-air cylinder, the compressor is sufficient to meet the re- quirements for compressed air supply.

  • Page 36: Scraper - Automatic Cleaner Of The Burner Head

    Function and setup novAA 800 Connection for the control cable Tube to the purge solution Support Short piece of tube to the nebulizer cannula Sample intake tube Fig. 18 Injection module SFS 6 3.8.4 Scraper – automatic cleaner of the burner head It is recommended to use the automatic cleaner of the burner head (scraper) for con- tinuous and fully automated operation with a nitrous oxide flame.

  • Page 37: Optional Accessory - Air Purge Kit

    The Air Purge Kit (APK) is used in combination with the atomic absorption spectrome- ters of the novAA series (novAA 800, novAA 400 P Flame) to purge the spectrometer. The purging process with purified and dried air prevents the ingress of dust and cor- roding vapors into the optical area of the spectrometer.

  • Page 38: Installation And Initial Start-Up

    ASpect LS. The novAA 800 will be delivered directly to the final instrument location by a transport company. The delivery by this company requires the presence of a person responsible for the instrument installation.

  • Page 39: Environmental Conditions

    4.1.1 Environmental conditions The novAA 800 may only be operated within closed rooms. The location must be set up like a chemical laboratory. The location must meet the following conditions:  The installation site must be devoid of dust, draft air currents, vibrations and caus- tic fumes.

  • Page 40: Energy Supply

    The current load at the maximum heating rate can reach up to 40 A for a short period (1 s). The mains voltage at the novAA 800 P should not de- crease by more than 6 % during this period. In case of deviations from these values, please contact the Analytik Jena service department.

  • Page 41: Gas Supply

    The power strip is plugged into the rear of the novAA 800 F and is connected to the same phase as the base device itself. The compressor and cool- ing unit need a separate power supply.

  • Page 42: Exhaust Unit

    The flame technique requires an oxidant (compressed air or nitrous oxide) and acety- Gases in lene as a fuel gas. On request Analytik Jena can also supply accessories to use propane flame technique as a fuel gas. The purity of the gases is extremely important for the analysis. The piston compressor PLANET L-S50-15 can be used to supply the compressed air.

  • Page 43: Space Requirement, Weight And Device Layout

    The accessories for the hydride technique (e.g. HS 60 modular) are placed on a sepa- rate table in front of the novAA 800. The Air Purge Kit can be placed next to the no- vAA 800 or on a separate side table (length of the connecting hose: 2 m).
  • Page 44 Installation and initial start-up novAA 800 The following are located on the floor near the device:  Cooling unit KM 5 The mobile cooling unit KM 5 must be placed with a minimum clearance of 15 cm to both sides to ensure optimum circulation of the cooling air inflow and outflow.

  • Page 45: Fig. 20 Dimensions Of The Novaa 800 - Front View

    800 Installation and initial start-up Fig. 20 Dimensions of the novAA 800 – front view Fig. 21 Dimensions of the novAA 800 (with AS-FD and Fluidics module)

  • Page 46: Fig. 22 Dimensions Of The Novaa 800 (With Autosampler As-Gf)

    Installation and initial start-up novAA 800 Fig. 22 Dimensions of the novAA 800 (with autosampler AS-GF)

  • Page 47: Fig. 23 Installation Diagram Novaa 800 With Exhaust Unit

    800 Installation and initial start-up Fig. 23 Installation diagram novAA 800 with exhaust unit...

  • Page 48: Supply And Control Connections

    The supply lines are connected by the technicians of the Analytik Jena service depart- ment during the installation of the novAA 800. The mains switch is located on the right side of the novAA 800. The right device side also contains an easily accessible connection panel with interfaces for PC and accesso- ries.
  • Page 49 Connection novAA 800 – PC Fig. 25 Supply and control connection panel Fig. 26 Rear view novAA 800 with connections and fuses Connection compressed air Gas and cooling water connection (see Fig. 28) Connection fuel gas (C Fuses and electrical connections (see Fig. 27)
  • Page 50 (e.g. compressed air) for graphite furnace technique and fuel gas (acetylene), nitrous oxide and compressed air for flame technique. The no- vAA 800 G does not have any connections for the flame gases. The novAA 800 F does not have the connections for inert gas and auxiliary gas.

  • Page 51: Removing The Transport Locks

    For transportation, the monochromator of the novAA 800 is protected by a securing Transport lock on the device. In addition to that, the graphite furnace of the combined device novAA 800 D monochromator and the novAA 800 G is tilted backwards and secured in parking position by a transport lock (red foam).
  • Page 52  Pull out the red and white transport lock from the sample chamber of the no- vAA 800 D or the novAA 800 G and retain them for future use. After unlocking the graphite furnace it can be tilted forwards into the optical axis (→...

  • Page 53: Placing And Connecting The Novaa 800

    1. Fill the mobile cooling unit KM 5 (→ section "Cooling unit KM 5" on page 114). 2. Set up the cooling circuit: Push the tube connector onto the novAA 800 and the KM 5. On the KM 5 (bottom): "Water inlet"  On the novAA 800: "IN"...
  • Page 54 The 8-lamp turret and the deuterium hollow cathode lamp are located behind the left front door in the lamp chamber of the novAA 800. The unit can also be accessed via the left side wall after removing the cover plate.

  • Page 55: Removing And Installing The Hollow Cathode Lamp

    800 Installation and initial start-up 4.6.1 Removing and installing the hollow cathode lamp 1. Open the door to the lamp chamber. In de-energized state 2. Turn the lamp turret until you can access the position you want to load.

  • Page 56: Configuring The Lamp Turret In Aspect Ls

    Installation and initial start-up novAA 800 1,3,5 Securing nuts of the lamp holder Adjustment screws Attachment screws for the safety bracket of the lamp holder Fig. 33 -HCL holder installed in the lamp chamber Fig. 34 -HCL with holder, removed from the lamp chamber...
  • Page 57 800 Installation and initial start-up Uncoded lamps NOTICE Observe the lamp position! If you use uncoded hollow cathode lamps, make sure that the position data in the software matches the actual loading position in the turret. 1. Click the...

  • Page 58: Adjusting The Lamps

    For the following useful life of the lamp adjustment, observe the instructions in the cookbook of the ASpect LS software, the Analytik Jena operating instructions for the various lamps and the information sup- plied with the lamp. Adjusting the 1.
  • Page 59 800 Installation and initial start-up The lamp is then automatically adjusted relative to a pitch circle. In the lamp align- ment area, the energy is displayed as a blue bar during the adjustment. Adjusting the deuterium 1. Click the...

  • Page 60: Changing The Atomization Technique

    Connecting or disconnecting electrical contacts may damage the sensi- tive electronic components of the novAA 800. In the combined device novAA 800 D the flame atomizer and the graphite furnace are novAA 800 D both attached to a bracket on the height adjustment that can be tilted by 60°.
  • Page 61 After removal of the burner, close the mixing chamber tube with the safety stopper. Otherwise, acid fumes could escape from the siphon and damage the novAA 800. Fur- thermore, the water in the siphon can not leak out when you tilt the mixing-chamber- nebulizer system backwards.

  • Page 62: Graphite Tube Technique

    Installation and initial start-up novAA 800 Graphite tube technique 4.8.1 Connections in the sample chamber for the graphite tube technique Fig. 39 Elements in the sample chamber for the graphite furnace technique Plastic pin for attaching the safety glass pane...

  • Page 63: Default Settings In The Software For The Graphite Technique

    800 Installation and initial start-up Fig. 40 Connections on the graphite furnace Cooling water connections: Sensor connection for cooling water temperature red hoses Power cable Furnace window Fuse on the graphite furnace Radiation sensor Dosing opening with graphite funnel...
  • Page 64 RAPHITE FURNACE For using the hydride systems HS 55 or HS 60 modular in combination with the graphite furnace (novAA 800 D + G). For using the IC graphite tube. UBE TYPE For using the graphite tube with the PIN platform.

  • Page 65: Inserting The Graphite Tube Into The Furnace

    4.8.3 Inserting the graphite tube into the furnace NOTICE The graphite tubes of the novAA 800 are custom-made and must be ordered from Analytik Jena. Do not use any other graphite tube. Other graphite tubes can damage the novAA 800.
  • Page 66 Installation and initial start-up novAA 800 Fig. 43 Opened graphite furnace with graphite tube Furnace window Furnace window Stationary part of the furnace Movable part of the furnace, opened Graphite tube, inserted Plug for the insertion opening of the extractor device (electrode replacement)

  • Page 67: Formation Of The Graphite Tube Furnace

    800 Installation and initial start-up 4.8.4 Formation of the graphite tube furnace Formation of the graphite tube furnace will result in the following:  atmospheric oxygen is expelled from the furnace  the tube temperature is recalibrated  the pyrolysis coating of the newly inserted graphite tube is conditioned ...

  • Page 68: Cleaning / Baking Out The Graphite Tube

    4.9.1 Installing the autosampler NOTICE Always switch off the novAA 800 before installing or removing the AS-GF! Connecting or disconnecting electrical contacts may damage the sensitive electronic components of the novAA 800. Choose a safe location for the completion of the AS-GF. The device can tilt easily.
  • Page 69 Adjustment screw 3 (for X coordinate) 12 Lock screw for piston rod 1. Switch off the novAA 800. 2. Install the tube guide (item 5 in Fig. 44) to the autosampler arm of the AS-GF and attach using the lock screw.
  • Page 70 12. If applicable, mount the dosing syringe to the dosing unit (→ section "Replacing the dosing syringe" on page 110). 13. Switch on the PC and the novAA 800, wait until the end of the spectrometer initial- ization, start the ASpect LS software and initialize the system.

  • Page 71: Adjusting The Sampler

    Do not use the titanium cannula for the coating. 2. Switch off the novAA 800 and install the hydride system (e.g. HS 60 modular). 3. For the HydrEA technique, loosen the clamp nut of the hose guide and pull out the dosing tube.

  • Page 72: Loading The Sample Tray

    Installation and initial start-up novAA 800 Align the AS-GF with the furnace: Pull the dosing tube from the tube guide of the autosampler by approx. 8 mm  and fix it with a clamp nut. Replace the pipetting insert (dosing funnel) in the graphite furnace by the ad- ...

  • Page 73: Uninstalling The Autosampler

    Installation and initial start-up 4.9.4 Uninstalling the autosampler 1. Observe the sequence for switching off the novAA 800 and its accessories and turn the devices off. 2. For HydrEA coupling: Remove the reaction gas tube from the titanium cannula. Loosen the clamp nut before pulling the titanium cannula off the tube guide.

  • Page 74: 4.10 Installing The Flame Technique

    Installation and initial start-up novAA 800 4.10 Installing the flame technique 4.10.1 Connections in the sample chamber for the flame technique Fig. 47 Connections on the burner-nebulizer system Burner Collection tray Markings for alignment on the mixing chamber tube Siphon...

  • Page 75: 4.10.2 Software Presettings For The Flame Technique

    Switch off the novAA 800 prior to installation! Connecting or disconnecting electrical plug-in contacts may damage the sensitive electronic components of the novAA 800. 1. Observe the sequence for switching off the novAA 800 and its accessories and turn the devices off.
  • Page 76 Installation and initial start-up novAA 800 Fig. 50 Flame technique, manual sample introduction Burner Outlet tube from the siphon Markings for the burner alignment on the mixing Sample cup chamber tube and the retainer Oxidant connection (blue), auxiliary oxidant Mixing-chamber-nebulizer system...

  • Page 77: 4.10.4 Installation For Continuous Operation / Sample Introduction Via Autosampler

    12. Switch on the novAA 800 and start the ASpect LS software.  The burner-nebulizer system is installed and prepared for manual sample in- troduction. 1. Observe the sequence for switching off the novAA 800 and turn the device off. Steps Demounting 2.
  • Page 78 4. Plug the control cable into the "Sampler flame" connection on the right side wall of the novAA 800 (item 2 in Fig. 25 on page 49) and lock it in place. 5. Attach the outlet tube to the outlet connector of the autosampler (rear panel, item 4 in Fig.
  • Page 79 800 Installation and initial start-up Note: Route the outlet tube in a constant downward slope. If necessary shorten the tube. Tube must not dip in the liquid. 6. Screw the tube for the purging liquid into the rear of the autosampler (item 5 in Fig.
  • Page 80 (item 3 in Fig. 53). 16. Immerse the hose for the washing liquid (marking "2") into the storage bottle. 1. Observe the sequence for switching off the novAA 800 and turn the device off. Uninstalling the autosampler 2.

  • Page 81: Installing The Injection Module Sfs 6

    800 Installation and initial start-up 4.10.5 Installing the injection module SFS 6 1. Screw on the aspiration tubes to the injection module: Medium length tube into the upper connection – to the sample (item 1 in  Fig. 54) Short tube into the lateral connection –...

  • Page 82: 4.10.6 Replacing The Burner

    Installation and initial start-up novAA 800 1. Remove the aspiration tubes from the washing liquid bottle and the sample cup Uninstalling the injection (for manual operation), or pull them off the aspiration cannula of the autosampler module to allow the system to drain.

  • Page 83: 4.11 Starting Up The Novaa 800 With Accessories

    2. Switch on the PC and wait for the operating system to initialize: The application icons appear on the screen, including the ASpect LS program icon. 3. Switching on the novAA 800: Press the green ON/OFF switch on the right side wall. Wait until the spectrometer has fully completed the automatic initialization routine.

  • Page 84: 4.11.2 Switching Off Sequence

    Installation and initial start-up novAA 800 4.11.2 Switching off sequence 1. Close the control software ASpect LS on the PC: Click the menu item F  E 2. For unsaved values decide whether data or information should be saved before exiting the program.

  • Page 85: Service And Maintenance

    Electric shock! The novAA 800 must be switched off before carrying out any mainte- nance work. Pull the mains plug. The safe disconnection of the novAA 800 from the mains can only be achieved by pulling the mains plug. Power is still supplied to both certain areas of the spectrometer, as well as the output socket, after the device has been switched off at the main switch.

  • Page 86: Maintenance Overview

    Atomization unit Align within the beam path. novAA 800 G + F: automatic height adjust- ment, depth is factory preset. novAA 800 D: automatic height adjustment, depth of the flame atomizer can be adjusted manually by means of an adjustment screw.
  • Page 87 800 Service and maintenance Maintenance item Action Frequency Burner-nebulizer system Burner-nebulizer system Disassemble and clean, optimize Depending on analyzed sample material; sensitivity if necessary. biological samples or samples with a high salt content require more frequent cleaning. Sensor for burner detection Clean with alcohol.

  • Page 88: Maintaining The Basic Device

    The power supply fuses (F1, F2) of the novAA 800 D and G may only be replaced by Analytik Jena service engineers or by technical personnel authorized by Analytik Jena. The fuses of the novAA 800 D and G can be found on the rear panel of the device and novAA 800 D + G within the sample chamber.

  • Page 89: Cleaning The Sample Chamber

    1. Brush connections with a heavily foaming liquid (e.g., soap solution). If bubbles form when opening the gas connection, switch off the novAA 800 and disconnect the gas supply. 2. Unscrew the untight gas connections and check whether they are properly posi- tioned.

  • Page 90: Cleaning The Furnace Windows

    Service and maintenance novAA 800 CAUTION Risk of burning at the hot furnace! Allow the graphite tube furnace to cool down before attempting any service or maintenance work. 5.3.1 Cleaning the furnace windows NOTICE Do not touch the quartz panes of the furnace windows with your bare hands. Finger- prints burn in.

  • Page 91: Cleaning The Graphite Surfaces

    Cleaning the graphite surfaces The graphite surfaces must be cleaned every day after using the device. 1. Switch on the novAA 800 and start the ASpect LS software (the movable furnace part must be pressurized to be opened/closed). window. Open the 2.

  • Page 92: Replacing Electrodes And Furnace Shroud

    The graphite furnace shown in the following photo series has been removed from the device to ensure a good view on the individual work steps. However, the graphite fur- nace does not need to be removed from the sample chamber of the novAA 800 to perform this maintenance work.
  • Page 93 800 Service and maintenance 2. Use the button in the ASpect LS graphite furnace technique to open the window. URNACE ONTROL 3. Use the [O ] button to open the furnace. PEN FURNACE 4. Use a pair of tweezers to remove the graphite tube from the opened graphite fur- nace.
  • Page 94 Service and maintenance novAA 800 8. Screw the extractor with the spindle turned back into the movable part of the furnace as far as it will enter. Use the ratchet wrench to fully push out the electrode. Remove the extractor from the part of the furnace.
  • Page 95 800 Service and maintenance 11. Loosen the union nut on the tempera- ture sensor of the cooling water. Pull out the sensor from the sensor sleeve on the back of the stationary part of the furnace. 12. Use your fingers to unscrew the sensor sleeve.
  • Page 96 Service and maintenance novAA 800 16. Align the furnace shroud with the cylin- drical receptacle parallel to the furnace body and fasten it with the inserting tool (large bracket). 17. Insert the furnace shroud to the stop. Loosen the insertion tool and remove it.
  • Page 97 800 Service and maintenance 22. Screw the two other gas connectors for the inner gas flow to both ends of the furnace shroud. Attach the two gas hoses to the gas connectors. 23. Position a new electrode parallel to the movable part of the furnace and fix it with the insertion tool (small bracket).

  • Page 98: Burner-Nebulizer System

    Service and maintenance novAA 800 27. Screw the cover screw into the movable part of the furnace. 28. Close the furnace with the [C ] button. LOSE FURNACE  Electrodes and furnace shroud are fully installed into the graphite furnace.

  • Page 99: Taking The Burner-Nebulizer System Apart

    800 Service and maintenance 5.4.1 Taking the burner-nebulizer system apart Fig. 60 Removing and disassembling the burner-nebulizer system Burner Connection for the siphon sensor Retaining screw on the burner Siphon sensor Mixing chamber tube 10 Screwed tube connections on the mixing...
  • Page 100 Service and maintenance novAA 800 Fig. 62 Withdrawing the nebulizer from the mixing chamber 1. Loosen the retaining screw (item 2 in Fig. 60 on page 99) on the burner and re- move the burner from the connector. 2. Unscrew the screwed tube connections on the mixing chamber head and the nebu- lizer (items 10 and 11 in Fig.

  • Page 101: Cleaning The Burner

    800 Service and maintenance 5.4.2 Cleaning the burner 1. Clean the burner under running water. 2. Clean the burner with the burner jaws facing downwards in an ultrasonic bath for 5 – 10 min with diluted HNO (c = 0.1 mol/L). If there is no ultrasonic bath: Place...

  • Page 102: Cleaning The Nebulizer

    Service and maintenance novAA 800 Fig. 64 Burner, disassembled Burner jaws Burner jaws Spacers Burner body Fig. 65 Spacers inserted in burner jaws 5.4.3 Cleaning the nebulizer 1. Place the nebulizer for several minutes into an ultrasonic bath with approx. 1 % of or organic solvent (isopropyl alcohol).

  • Page 103: Cleaning The Siphon

    800 Service and maintenance 2. Use diluted mineral acid (HNO , HCl, H ) or, depending on the analyzed sub- stances an appropriate organic solvent, for cleaning the component. 3. If the mixing chamber is cleaned with a diluted mineral acid, wash thoroughly with distilled water after cleaning.
  • Page 104 Service and maintenance novAA 800 9. Plug the cable of the siphon sensor (item 8 in Fig. 60) into the connection on the sample chamber wall (mind the lug) and screw tight. 10. Attach the outlet tube to the outlet connector of the siphon (item 7 in Fig. 60).

  • Page 105: Aligning The Atomizer Within The Beam Path

    Components of the nebulizer 5.4.7 Aligning the atomizer within the beam path The novAA 800 D has an adjustment screw to align the burner-nebulizer system in the sample chamber depth. For adjusting the system, the stop of the tilting bracket is re- set.

  • Page 106: Cleaning The Sensor For Burner Detection

    Service and maintenance novAA 800 For the models novAA 800 G + F it is possible to use the factory-set configuration for all measurement tasks. In addition to that, the control and analysis software ASpect LS automatically sets the height of the atomizer for all models of the novAA 800 product family after selecting the atomization technique in the M window.

  • Page 107: Purging The Dosing Tube

    1. Switch on the novAA 800 and start the ASpect LS software / graphite furnace technique. 2. In ASpect LS use to open the A window.

  • Page 108: Servicing The Dosing Tube

    Service and maintenance novAA 800 Fig. 70 window DJUST SAMPLER 5.5.2 Servicing the dosing tube A defective, kinked or contaminated dosing tube can cause distorted measurement results. Maintenance work is:  Cleaning the dosing tube  Shorten the dosing tube ...
  • Page 109 1. Fill the sodium hypochlorite solution into a 5 mL special cup and mount tray posi- tion 101 with it. 2. Switch on the novAA 800 and start the ASpect LS software. 3. In ASpect LS use to open the A window.

  • Page 110: Replacing The Dosing Syringe

    Dosing syringe, consisting of piston and glass cylinder Attachment screw Drive rod Fig. 72 Dosing unit at AS-GF and AS-FD 1. Switch on the novAA 800 and start the ASpect LS software. Select the technique in the M window: G (AS-GF) or F (AS-FD).

  • Page 111: Cleaning The Autosampler After Cup Overflow

    800 Service and maintenance 9. Click the [I ] button in the A window. NITIALIZE UTOSAMPLER The piston of the dosing unit returns to the initial position.  The autosampler is ready for operation with a new dosing syringe.

  • Page 112: Washing The Mixing Cup Of The As-Fd

    Service and maintenance novAA 800 5.6.2 Washing the mixing cup of the AS-FD The mixing cup must be washed before and after the operation to prevent adhesion and scaling. Before preparing the first standard / first sample the mixing cup is washed automati- cally.

  • Page 113: Replacing The Cannula On The Autosampler Arm Of The As-F

    800 Service and maintenance 5.6.4 Replacing the cannula on the autosampler arm of the AS-F The cannula for picking up the sample (thin cannula) must be replaced in case of sig- nificant contamination or mechanical damage (detectable by large standard deviations in the measurements).

  • Page 114: Cleaning Up After Cup Overflow

    1. Keep a receptacle with a capacity of 5 L readily available. Empty offline 2. When the novAA 800 is switched off position the return flow tube of the KM 5 (connection is indicated by on the KM 5) in the receptacle.

  • Page 115: Piston Compressor Planet L-S50-15

    800 Service and maintenance Piston compressor PLANET L-S50-15 (Selected technique: flame technique) Note: Please observe the maintenance and care instructions in the separate operating instructions for the compressor.  Pressure cylinder and fluid separator on the pressure reducer: Drain oily condensate from the pressure cylinder (furnace) every week by opening the drain cock.

  • Page 116: Troubleshooting

    If such problems occur frequently, the operator must inform the Analytik Jena service department. A system monitoring process is initiated as soon as the novAA 800 is switched on. Any errors that occur are displayed in a window after start-up.
  • Page 117 800 Troubleshooting Error Error message code 4301 Firmware update communications error Cause Remedy  Firmware update has failed  Repeat the firmware update  Inform service 5003 Line source signal or emission signal too small Cause Remedy  HCL too weak ...
  • Page 118 Troubleshooting novAA 800 Error Error message code 5008 Energy drift or energy fluctuations in the background radiator too big Cause Remedy  Fluctuations of the D -HCL energy are  Increase the slit width or select an analy- too big sis line with a shorter wavelength ...

  • Page 119: Equipment Faults And Analytical Problems

     Check the height adjustment  Atomization unit is inappropriately aligned in the beam path  On the novAA 800 D, correct the depth adjustment of the burner-nebulizer system using the adjustment screw  Leak or obstruction in the sample ...
  • Page 120 Troubleshooting novAA 800  Analytes evaporate too early / too  Perform a standard addition late (graphite furnace technique)  Optimize the furnace program (e.g. by reducing the pyrolysis temperature)  The analyte is an alkali metal (or  Alkali effect, addition of ionization buffers that...
  • Page 121 800 Troubleshooting  Contamination / carry-over in the  Check the flow through the nebulizer and clean nebulizer (flame technique)  If necessary, filter the sample solutions  The nebulizer gas flow is not opti-  Optimize the nebulizer gas flow...

  • Page 122: Transport And Storage

    Always use the original packaging when transporting the novAA 800. When transport- ing the novAA 800 D and G, insert the transport lock into the sample chamber to se- cure the graphite furnace in parking position. In addition to that, use a transport lock to secure the monochromator.

  • Page 123: Ambient Conditions For Transport And Storage

    Reattach the device cover.  10. novAA 800 D + G: Use the pivoting mechanism to tilt the graphite furnace back- wards. Insert the transport lock into the opening in the back of the sample cham- ber so that the wedge locks the graphite furnace in parking position.

  • Page 124: Disposal

    The neutralized waste must be dis- posed of correctly in accordance with statutory regulations. At the end of its service life, the novAA 800 and all its electronic components must be disposed of as electronic waste in accordance with the applicable regulations.

  • Page 125: Specification

    800 Specification Specification Technical data 9.1.1 Data on the novAA 800  Graphite furnace technique in single-beam operation with deuterium background Techniques correction  Flame technique in single or double-beam operation with deuterium background correction  Hydride and mercury cold vapor technique in single-beam operation with deuteri- um background correction ...
  • Page 126 Specification novAA 800 Deuterium hollow- Lamp type: Glow discharge lamp with continuum radiation in the UV range cathode lamp D -HCL Lamp current 30 mA Mode electrical timing 50 Hz Analytical operating Total absorption modes in absorption Specific and unspecific absorption...
  • Page 127 Recalibration Two-point recalibration with display of the recalibration fac- Power supply Supply voltage 230 V ~ novAA 800 D + G Frequency 50 / 60 Hz Mains fuse (installation in 35 A, safety fuse, slow blow, single phased the building)
  • Page 128 Specification novAA 800 Instrument fuses The fuses of the power supply may only be changed by service engineers from Analytik Jena or by technical personnel authorized by Analytik Jena. Fittings for gL-fuses (10×38 mm²) according to 60947-3. Fuse number Type...

  • Page 129: Minimum Requirements Of The Aspect Ls Software

    0.7 bar to 1.06 bar Max. operating altitude 2000 m The ambient conditions for the novAA 800 are identical for operation and storage. Dimensions and weights The models of the novAA 800 product family have identical dimensions but different weights.

  • Page 130: Data For The Graphite Tube Technique

    Specification novAA 800 9.1.3 Data for the graphite tube technique Graphite tube furnace Sample type Dissolved Tube type IC tube (wall atomization) Graphite tube with PIN platform All types of tube have pyro-coating. Sample volume Max. 40 µL (graphite tube with PIN platform) Max.

  • Page 131: Data For The Flame Technique

    Mode of action Float, corrosion proof Burner adjustment Height 4 to 18 mm, automated Depth Factory preset The novAA 800 D allows a manual adjustment Rotation 0 to 90°, manual Safety circuits Monitoring of Burner and burner type Fuel gas pressure...

  • Page 132: Accessories Data

    Specification novAA 800 9.1.5 Accessories data Autosampler AS-GF Autosampler for adding liquid samples, completely PC-controlled Sample tray 108 positions Sample cups 100 pieces, 1.5 mL Special cups 8 pieces, 5 mL Pipetting volume 1 to 50 µL Rinse volume 0.5 mL, number of wash cycles can be selected Program methods Standard
...
  • Page 133 800 Specification Mobile Model: KM 5, air cooler with thermostat; CFC-free cooling unit Tank capacity Preset temperature 35 °C Capacity max. 3 L/min Piston compressor Model: PLANET L-S50-15 Standard, Compressed air supply for the flame technique Tank capacity 15 L...

  • Page 134: Guidelines And Standards

    25 years when the device is used in accordance with its intended purpose. The novAA 800 is built and tested according to standards that fulfill the requirements EU directives stipulated by the EU directives 2014/35/EU, 2014/30/EU and 2011/65/EU.

  • Page 135: Ce Declaration Of Conformity

    800 CE Declaration of Conformity CE Declaration of Conformity...

  • Page 136: Index

    Index novAA 800 Index Acetylene Canula safety instructions 14 replacement 112 Adjustment Change atomizer 105 atomizer 60 Air Purge Kit 37 Compressed air supply Refer to Piston Air purge of the spectrometer 37 compressor Analysis Compressed gas cylinder 14 problems 119...
  • Page 137 800 Index injection module SFS 6 35 hydride system 37 lamp turret 21 preparing the novAA 800 70 piston compressor 35 Hydride system 37, See Hydride system radiation sensor 27 scraper 36 Injection module Refer to SFS 6 Furnace See Graphite furnace...
  • Page 138 Index novAA 800 cleaning 103 installation 76, 78 Personnel 11 Siphon monitoring 131 Piston compressor Software See ASpect LS functioning 35 Space requirement 43 maintenance 115 Storage 122 technical data 133 Switching off sequence 84 Planet L-S50-15 Refer to Piston compressor...

Table of Contents

Save PDF