Description

Distillation & Titration Unit – Kjeldahl Nitrogen Analyzer

1. General Information

• Brand: VELP Scientifica

• Model: UDK 152

• Instrument Type: Automatic Kjeldahl Distillation & Titration Unit

• Application: Nitrogen/Protein determination using Kjeldahl method

• Software Version (unit shown): 3.13

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✅ 2. Technical Specifications

Distillation System

• Distillation Method: Steam distillation

• Distillation Capacity: Supports standard micro and macro Kjeldahl digestion samples

• Distillation Time: Typically 3–5 minutes per sample (depending on method)

• Reproducibility: ± 1%

• Distillate Recovery: > 99%

Built-in Titration System

• Titration Type: Automatic potentiometric titration

• Titration Range: Supports titrants used in Kjeldahl nitrogen analysis

• End-Point Detection: High-precision electrode system

• Measurement Display: Touch-screen LCD

• Automatic Result Calculation: Nitrogen %, Protein %, Sample factor, Blank correction

Reagent Handling

• Automatic Reagent Addition:

  • Sodium hydroxide (NaOH)

  • Water / Dilution

  • Boric acid

  • Steam generator water

• Built-in Safety Systems:

  • Reagent level sensors

  • Safety door lock during operation

Steam Generator

• Power: High-efficiency steam generator

• Steam generation temperature: > 140°C

• Automatic cleaning program: Yes

• Water level control: Automatic

Sample Compatibility

• Food & Feed

• Agriculture

• Environmental samples

• Chemical & industrial samples

• Pharmaceuticals

• Soil & water

Data & Control

• Display: Large backlit LCD

• Control Panel: Multi-function keypad

• Connectivity: RS-232 printer/output

• Memory: Stores multiple methods and results

Power Requirements

• Voltage: 200–240 VAC

• Frequency: 50/60 Hz

• Max Power Consumption: 2400 VA

Physical Specifications

• Dimensions: Approx. 500 × 780 × 820 mm

• Weight: 60–80 kg (depending on configuration)

• Cooling Water Consumption: Typically 1–2 L/min

Safety Protection

• Over-temperature protection

• Over-pressure steam protection

• Door safety lock

• Automatic shutdown on system fault

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✅ 3. Condition & Accessories (Based on Provided Photos)

• Condition:

  • Fully functional, boots normally

  • Screen, buttons, and titration system operational

  • Panel and steam chamber intact

  • Normal signs of use (cosmetic wear)

• Included:

  • Main unit UDK 152

  • Glass condensation chamber

  • Sample receiving flask

  • Power cable

  • Internal tubing & reagent connectors