Kjeldahl Apparatus

Semi Automatic Kjeldahl Nitrogen Analyzer (Kjeldahl Distiller)

Features for BKN-984:
  • 4.3 inch LCD display.
  • Manual/automatic mode can be switched freely.
  • Automatic accurate distribute alkali and boric acid solution.
  • Automatic fault detection function, audio, and visual alarm system.
  • Multi-protection function, such as safety door, tube position protection, cooling water testing protection, etc.

Fully Automatic Kjeldahl Nitrogen Analyzer

Features for BKN-110F and BKN-986:
  • Large LCD touch screen.
  • Colorimetric titration device.
  • Sample method can be edited and stored.
  • Automatic distillation, titration, calculation, printing, drain and cleaning function.
  • Dual distillation mode can adjust the sequence of solution adding (Only for BKN-110F) Standard built-in printer, optional CAN and RS-485 interface for BKN-110F Model.
​Technical Parameters:
Model
​BKN-984
BKN-110F
BKN-986
Water Consumption
​1.5L/Min
​1.5L/Min
​1.5L/Min
​Ambient Temperature
​5~40°C
​5~40°C
​5~40°C
Ambient Humidity
​80%
80%
80%
​Measure Range
​0.1mg~200mg
​0.1mg~200mg
​0.1mg~200mg
Analysis Time
​5~10min
​5~10min
​5~10min
Recovery Ratio
​≥99.5%
​≥99.5%
​≥99.5%
Sample Amount
​Solid ≤6g; Liquid ≤16ml
​Solid ≤5g; Liquid ≤20mI
​Solid ≤5g; Liquid ≤20mI
​Burette Accuracy
/
 1.0µL/step
​2µL/step
​Reproducibility
/
​ ±0.5%
​ ±0.5%
Consumption
​2000W
​2000W
​2000W
​Power Supply
​AC110/220V±10%, 50/60Hz
​AC110/220V±10%, 50/60Hz
​AC110/220V±10%, 50/60Hz
​Packing Size (W*D*H)
​655*528*880mm
​Main body: 585*525*900mm
​Accessories: 605*600*355mm
​Main body: 585*525*905mm
​Accessories: 600*600*360mm
Gross Weight
​45kg
Main body: 52.7kg,
​Accessories: 12.5kg
​Main body: 50.3kg,
​Accessories. 13.4kg
​Functions List
​BKN-984
​BKN-110F
​BXN-986
​Variable Steam Generator
•
​•
​•
​Cooling Water Pressure Monitor
​•
​•
​•
Cooling Water Temperature Monitor
​•
​•
​•
Automatic Alkali Solution Adding
​•
​•
​•
​Automatic Dilute Water
​•
​•
​•
Auto Receiver Solution Adding 
•
​•
​•
​Tube Emptying
 
​•
 
Removable Drain Tray
•
​•
​•
​Safety Door
​•
​•
​•
​Tube on Position Sensor
​•
​•
 
Tube Replacement Sensor
​•
​•
 
​Colorimetric Titration Device
 
​•
​•
​Results Calculation
 
​•
​•
Result and Data Storing 
 
​•
​•
​Built-in Printer
 
​•
​•
Trouble Shooting Self-Detecting Functions
​•
​•
​•
​Titration While Distillation
 
​•
 

Kjeldahl Digestion Furnace

Technical Parameters:
Model
BKD-20F
​Temp. Range
RT+5~450°C
Temp. Accuracy 
​±14
​Heating Method
Infrared heating and high-purity graphite ​conduction
Heating Insulation Method
Ceramic fiber and unique air duct insulation
​Digestion Tube Capacity 
300ml
​Capacity/Batch
​20 pcs/batch
Consumption 
​3600W 
​Power Supply
​AC110/220V±10%,50/60Hz
Packing Size(W*D*H)
650*540*470mm
​Gross Weight
​33kg

GCH-03 Gas Collection Hood

Features:
  • Using PFA sealing cap, longer life, dealing effect well Clip-on sealing cap, easy for changing
  • Specialized water jet vacuum pump is adopted, don't need electric power
  • Drip tray design, reduce corrosion damage from acid solutions
  • Package Size: 530*350*290mm
  • Gross Weight: 8kg

Exhaust System Scrubber

Features: 
  • The anti-corrosion processed vacuum pump with low noise, large suction, low waste gas exhausting and power saving function
  • Unique efficient neutralization device expands the contact area between gas and solutions. It is available for acid gas neutralizing, absorbing, and letting the operating environment safety.
  • The triangle filtration system including water filtration, alkali neutralizing and activated carbon filtration. It has perfect neutralizing and absorbing function, can neutralize acid mist and reacting gas which is generated from Kjeldahl processing or any other processing.
  • PTFE anti-corrosion design of the pipe system enhance equipment's life.
  • Flow rate is adjustable, let operation flexibly.
Technical Parameters:
Model
​ES402
Max. Flow Rate
​3m3/H
​Max. Negative Pressure
​0.05MPa
Neutralization Methods 
Water, Alkali, and ​Carbon
​External Size(W*D*H)
​390*340*550mm
Packing Size(W*D*H)
570*440*665mm
​Gross Weight
​30.9kg

​Semi Automatic Kjeldahl Nitrogen Analyzer (Kjeldahl Distiller)

Features:
  • 6 inch LCD display.        
  • Manual/automatic mode can be switched freely.
  • Siemens control system, with high precision and stability.
  • 10 groups of programs, meet the demand of different customers.
  • Automatic control of adding alkali and boric acid solution, dilution, and elution.
  • Multi-protection function, such as safety door, overpressure protection, water shortage protection, etc.
Technical Parameters:
Model
​BKN-983
Measuring Range
​0.1~250mgN
​Recovery Ratio
≥99.5%
Repeatability
±0.5%
​Sample Amount
Solid <6g, liquid <16ml
​Distillation Speed
​3~4min/sample
​Distillation Time
0~999s
​Cooling Water Consumption
​1.2-3L/min
Requirement of Cooling Water
<18°C
​Consumption
​2000W
​Power Supply
AC220V, 50/60Hz
​Packing Size(W*D*H)
Main body: 630*540*810mm
Accessories: 530*530*540mm
​Gross Weight
Main body: 37kg
Accessories: 7kg

Fully Automatic Kjeldahl Nitrogen Analyzer

Features:
  • Large LCD touch screen.
  • Siemens control system, with high precision and stability.
  • Alkali solution could be added repeatedly in the process of distillation
  • Multi-protection function, such as safety door, overpressure protection, water shortage protection, etc.

Additional Features of BKN-987A:
  • It could show the titration curve.
  • One key to wash the alkali liquor pipes.
  • Automatically discharge the waste in the digestive tubes.
Technical Parameters:
Model
​BIN-987
BKN-987
Working Process
​Adding quantitative sample dilution, alkali liquor and absorption liquid; Automatically finishing distillation, titration,
​print and liquid-discharging.
​Adding quantitative sample dilution, alkali liquor and absorption liquid; Automatically finishing distillation, titration,
​print and liquid-discharging.
Measurement Range 
​0.1~240mgN
​0.1~240mgN
​Sample Amount
​Solid ,6g; liquid <16mI
Solid ,6g; liquid <16mI
​Measurement Time
​4~6 minutes
4~6 minutes
Titration Precision
​0.75µL/step
​0.75µL/step
​Requirement of Cooling Water
​<18°C
<18°C
​Cooling Water Consumption
​1.5L/min (Distillation process)
​1.5L/min (Distillation process)
Titration Solution Concentration 
​Direct titration samples with 4 titration concentrations of 0.1mol, 0.5moI and 1mol
​Direct titration samples with 4 titration concentrations of 0.1mol, 0.5moI and 1mol
​Titration System
​High-precision plunger type titration system
High-precision peristaltic titration system
Repeatability
​±0.5%
±0.5%
​Recovery Ratio
​≥99.5%
≥99.5%
Data Storage
​140,000 groups
140,000 groups
​Consumption
​2000w
2000w
Power Supply
AC220V, 50/60Hz
AC220V, 50/60Hz
​Packing Size (W*D*H)
Main body: 630*540*810mm
​Accessories: 530*530*540mm
Main body: 630*540*810mm
​Accessories: 530*530*540mm
​Gross Weight
​Main body: 57kg
​​Accessories: 7kg
​Main body: 57kg
​​Accessories: 7kg

Kjeldahl Digestion Furnace

​Technical Parameters:
Model
​BKD-8B
Temp. Range
RT-400°C
Temp. Precision
±1°C
​Heating Pipe
​Aluminum alloy pipe (Nichrome wire)
Heating Speed
20°C/min
​Heating Holes
8
Digestion Tube Size 
300ml±0.25ml
​Consumption
​2KW
Power Supply
AC220V, 50/60Hz
​Packing size(W*D*H) 
​660*500*295mm 
Gross weight
​20kg