Manual distillation system KjelMaster K-375

automatedautomaticsteam

Overview
The KjelMaster K-375 is an automatic Kjeldahl distillation unit designed for routine nitrogen and protein analysis. It reduces manual handling through automated reagent dosing and integrates with KjelSampler autosamplers (K-376: 24 positions, K-377: 48 positions) to increase throughput while remaining compatible with BUCHI 100 mL, 300 mL and 500 mL sample tubes.

Key benefits

• Safety: automated reagent handling and no glassware transfers minimize operator exposure to corrosive chemicals.
• Throughput: supports up to 48 samples with KjelSampler K-377 (option for two-rack continuous workflow) or 24 samples with K-376.
• Flexibility: bench-top design with optional express rack for prioritized samples; switch between automatic and manual operation as needed.
• Smart distillation (IntelliDist): automatic detection of operating conditions reduces cycle time and removes the need for preheating.

Features

• Measuring range: 0.02 – 220 mg N (typical Kjeldahl analysis).
• Adjustable steam output: 30 – 100% for process optimization.
• Autosampler options: KjelSampler K-376 (24 positions) and K-377 (48 positions; K-377 supports two independent racks).
• High recovery: >99.5% for 1 – 200 mg N.
• Interface: 8.4-inch color touchscreen for intuitive operation and programming.
• Titration modes: potentiometric and colorimetric titration supported.
• Data integration: KjelLink PC software and bidirectional data exchange; LIMS compatibility and user-level access control.
• Sample compatibility: BUCHI sample tubes (100 mL, 300 mL, 500 mL) and compatible racks (e.g. K-446 / K-449).

Complementary peripherals

• Analytical balances and barcode readers
• Network printers or local printers
• KjelLink software and LIMS connectivity
• KjelSampler K-376 or K-377 autosamplers
• Recirculating chillers (e.g. F-series)

Applications

• Beverage analysis: protein, organic nitrogen, ammonia, nitrate, nitrite.
• Environmental testing: Total Kjeldahl Nitrogen (TKN), phosphate; workflows for nitrate/nitrite.
• Feed industry: protein and non-protein nitrogen (NPN) determination.
• Food industry: protein, NPN, casein (NCN), Total Volatile Basic Nitrogen (TVBN), sulfur dioxide (SO2), formaldehyde where applicable.

Technical specifications

• Model: KjelMaster K-375 (compatible with KjelSampler K-376 / K-377).
• Measuring range: 0.02 – 220 mg N.
• Recovery: >99.5% (1 – 200 mg N).
• Steam power: adjustable 30 – 100%.
• Autosampler: K-376 (24 positions) / K-377 (48 positions, optional two-rack continuous workflow).
• Sample tubes: BUCHI 100 mL, 300 mL, 500 mL.
• Display: 8.4-inch color touchscreen.
• Titration: potentiometric and colorimetric methods.
• Software/data: KjelLink PC software; LIMS integration supported; user level management.
• Peripherals: balances, barcode reader, printers, recirculating chillers (F-series), compatible racks K-446 / K-449.
• Typical analytes: TKN, TVBN, nitrate, nitrite, ammonia, protein, SO2.