Document Outline

• 1 About this manual
  • 1.1 Trademarks
  • 1.2 Abbreviations
• 2 Safety
  • 2.1 User qualification
  • 2.2 Proper use
  • 2.3 Improper use
  • 2.4 Safety warnings and safety signs used in this manual
  • 2.5 Product safety
    • 2.5.1 General hazards
    • 2.5.2 Instrument-related hazards
    • 2.5.3 Other hazards
    • 2.5.4 Personal protective equipment
    • 2.5.5 Built-in safety elements and measures
  • 2.6 General safety rules
• 3 Technical data
  • 3.1 Scope of delivery
    • 3.1.1 Basic devices
    • 3.1.2 Standard accessories for K-375
    • 3.1.3 Standard accessories for K-376
    • 3.1.4 Standard accessories for K-377
    • 3.1.5 Optional accessories K-375
    • 3.1.6 Optional accessories K-376/K-377
  • 3.2 Technical data overview
    • 3.2.1 Technical data KjelMaster K-375 and KjelSampler K-376/K-377
    • 3.2.2 Technical data titrator
  • 3.3 Titration solution
  • 3.4 Information on type plate
  • 3.5 Reference substances
  • 3.6 Materials used
    • 3.6.1 Titrator module and dosing unit
    • 3.6.2 K-375
    • 3.6.3 K-376/K-377
• 4 Description of function
  • 4.1 Device overview
    • 4.1.1 Opening the service door
  • 4.2 Functional principle of Sampler System K-375 with K-376 or K-377
  • 4.3 Standby function
  • 4.4 System preparation
    • 4.4.1 Preheating
    • 4.4.2 Priming
    • 4.4.3 Cleaning
    • 4.4.4 Aspiration
  • 4.5 Distillation and titration
    • 4.5.1 Distillation Mode
    • 4.5.2 Titration Type
    • 4.5.3 Sensor Type
    • 4.5.4 Titration Mode
    • 4.5.5 Measuring Mode
    • 4.5.6 Titration Algorithm
    • 4.5.7 Determination Mode
  • 4.6 Different methods
  • 4.7 Blank values
    • 4.7.1 Blanks
    • 4.7.2 Control blanks
  • 4.8 Reference substances
  • 4.9 Result Groups
  • 4.10 Explanation of alkaline direct distillation
• 5 Putting into operation
  • 5.1 Installation site
  • 5.2 Electrical connections
    • 5.2.1 Connections of the K-375
    • 5.2.2 Connections of the K-376/K-377
  • 5.3 Transfer connection K-376 (K-377) – K-375
    • 5.3.1 Connecting the K-376 to the K-375
    • 5.3.2 Connecting the transfer hoses of the K-377
  • 5.4 Reagent/water and waste connections
  • 5.5 Buret unit for titrant
  • 5.6 Storage tank connection
  • 5.7 Level sensors
  • 5.8 Connections to peripheral devices
    • 5.8.1 Connecting a printer
    • 5.8.2 Connecting a network cable
    • 5.8.3 Connecting a KjelSampler K-376 or K-377
    • 5.8.4 Connecting a balance
    • 5.8.5 Connecting a bar code reader
    • 5.8.6 External dosing unit for back titration
    • 5.8.7 Electrode connection
  • 5.9 Preparing the system
    • 5.9.1 Preparing the software
    • 5.9.2 Preparing the hardware
• 6 Operation
  • 6.1 The operating principle
  • 6.2 The home screen
    • 6.2.1 The title bar
    • 6.2.2 The bottom bar
    • 6.2.3 System status icons
  • 6.3 User concept
  • 6.4 Editable and non-editable menu items
  • 6.5 The status view
    • 6.5.1 RESULT display
    • 6.5.2 CHART display
    • 6.5.3 INFO display
  • 6.6 Determination
    • 6.6.1 System Preparation
    • 6.6.2 Single Sample
    • 6.6.3 Sample Lists
    • 6.6.4 Sequences
  • 6.7 Results
    • 6.7.1 Result groups
    • 6.7.2 Last Results
    • 6.7.3 Blank Correction
  • 6.8 Determination Parameters
    • 6.8.1 Methods
    • 6.8.2 Volumetric Solutions
    • 6.8.3 Reference Substances
  • 6.9 Device
    • 6.9.1 Settings
    • 6.9.2 Utilities
    • 6.9.3 Diagnostics
    • 6.9.4 Logout
• 7 Maintenance
  • 7.1 Daily maintenance
    • 7.1.1 Before sample determination
    • 7.1.2 After sample determination
    • 7.1.3 pH electrode/pH calibration
    • 7.1.4 Filling boric acid into receiving vessel after last sample of rack was determined
  • 7.2 Weekly maintenance
    • 7.2.1 Cleaning the housing
    • 7.2.2 Cleaning the titrator
    • 7.2.3 Cleaning the glass parts of the dosing unit
    • 7.2.4 Cleaning the dip tube of the sampler
    • 7.2.5 Device monitoring
  • 7.3 Monthly maintenance
    • 7.3.1 Calibrating the pump
    • 7.3.2 Checking the distillate amount
    • 7.3.3 Inspecting the buret
    • 7.3.4 Inspecting the titrator
    • 7.3.5 Inspecting the sample tubes
  • 7.4 Half-yearly maintenance
    • 7.4.1 K-375 Sealing between sample tube and splash protector
    • 7.4.2 K-376/K-377 dip tube and sealing cap
    • 7.4.3 Replacing the splash protector
  • 7.5 Yearly maintenance
    • 7.5.1 Replacement of wear parts
    • 7.5.2 Decalcification of the steam generator
    • 7.5.3 Replacement of the sodium hydroxide pump
    • 7.5.4 Replacement of the wave spring
  • 7.6 Replace every two years
    • 7.6.1 Replacement of the transfer connection
  • 7.7 Maintenance work if required
    • 7.7.1 Changing the buret tip
    • 7.7.2 Cleaning the pH electrode
    • 7.7.3 Replacing the buret
    • 7.7.4 Cleaning the splash protector and the rubber seal
    • 7.7.5 Glass parts
    • 7.7.6 Troubleshooting the dosing unit
    • 7.7.7 Adjusting the sample tube holder
  • 7.8 Customer service
• 8 Troubleshooting
  • 8.1 Problems that may occur
  • 8.2 Error messages on the display of the K-375
  • 8.3 Eliminating errors of the KjelSampler K-376/K-377
  • 8.4 Eliminating errors of the titrator
• 9 Taking out of operation
  • 9.1 Emptying the steam generator
  • 9.2 Emptying the buret of the titrator
  • 9.3 Storage/shipping
  • 9.4 Disposal
• 10 Spare parts
  • 10.1 Spare parts K-375
  • 10.2 Spare parts K-376/K-377
  • 10.3 Hosing connection scheme Kjeldahl Sampler System K-375/K-376
• 11 Declarations and requirements
  • 11.1 FCC requirements (for USA and Canada)
  • 11.2 Declaration of conformity