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FR.4000 – Furanic Transformer Oil Analyser

The FR.4000 is a high-precision liquid chromatography system engineered for the analysis of furanic compounds in transformer oil, widely used for assessing transformer insulation health. The system combines a high-pressure infusion pump with an advanced ultraviolet detector, ensuring accurate, stable, and efficient chromatographic analysis.

Developed from extensive industry experience, the FR.4000 integrates innovative patented technologies to enhance accuracy, reliability, and ease of use. Its modular design supports diverse experimental requirements across transformer diagnostics, research laboratories, and quality control environments.

Key Features

  • Patented static motor control circuit with automatic feedback for high accuracy and reliability

  • Double-plunger reciprocating pump (series/parallel selectable)

  • Floating self-aligning seal and optional self-cleaning pump head for extended service life

  • Convenient flow/pressure correction with automatic compensation

  • Supports linear and step gradient operation modes

  • Full pre-cleaning function for rapid solvent replacement

  • Integrated ultraviolet detector with holographic double grating technology

  • Fast wavelength scanning with high-precision photodiodes

  • Universal sample cell design for both trace and standard analysis

  • Simple, tool-free deuterium lamp replacement with no recalibration required

 

Technical Specifications

High Pressure Infusion Pump

flow range

  • 0.001 – 10 mL/min (step width 0.001 mL/min)

flow accuracy

  • ±1% or 2 µL/min

maximum work pressure

  • 42.0 MPa (programmable limits with automatic alarm)

flow precision

  • 0.3%

gradient

  • Binary or ternary

gradient mode

  • Gradient elution (software/PC controlled)

power supply

  • AC 110V / 220V, 50/60 Hz

dimensions

  • 400 × 300 × 180 mm

Ultraviolet Detector

lamp

  • Deuterium / tungsten

optical route design

  • Monochromator with dual silicon photodiode detector

linear range

  • 2.8 AU (5%)

wavelength range

  • 190 – 700 nm (1 nm steps)

wavelength repeatability

  • ±0.2 nm

wavelength accuracy

  • ±1 nm

band width

  • <6 nm

absorption range

  • 0.0005 AU/mV – 4 AU/mV

data system output

  • 4 AU/V with auto-zero; dual output to integrator and recorder

baseline noise

  • ≤ ±0.5 × 10⁻⁵ AU (254 nm, 1.0 s)

baseline drift

  • ≤ 2 × 10⁻⁴ AU (254 nm, 60 min)

minimum detection concentration

  • 2 × 10⁻⁹ g/mL (naphthalene in methanol)

sample cell

  • 10 mm optical length, 10 µL volume

power supply

  • AC 110V / 220V, 50/60 Hz

dimensions

  • 400 × 300 × 180 mm

Application

  • Transformer oil furanic compound analysis (IEC-compliant DGA complement)

  • Insulation condition assessment for power and distribution transformers

  • Research labs, diagnostic centres, and OEM test environments

  • General chromatography for industrial, chemical, and material science fields

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