Coulometer KF875 and KF-LAB MkIII

Product overview The KF875 and KF‑LAB MkIII are coulometric Karl Fischer test sets for determining moisture content in oils. Both units are portable, battery‑powered and include an integral printer and carrying case for on‑site testing.

Key features

• Portability: battery operation and transport case allow immediate testing at the sampling location.
• One‑touch operation (KF875): simplified titration workflow — inject a 1 ml sample into the test cell for fast, repeatable analysis.
• Versatile analysis (KF‑LAB MkIII): supports specific gravities from 0.60 to 1.40 and configurable sample sizes; default setting optimised for insulating oil SG 0.875.
• Integral printer: printed output on demand and on‑screen display for traceable results.
• ACE Control System: active error compensation detects and corrects resistance changes for reliable diagnostic readings.
• Result formats: results provided in micrograms of water and mg/kg (ppm); KF‑LAB MkIII also supports % and additional unit formats.

Operation and applications

• KF875 — designed for rapid field checks on insulating oils: typical procedure is 1 ml sample injection and automated titration, requiring minimal operator steps.
• KF‑LAB MkIII — configurable for a wider range of fluids and sample volumes; suitable for transformer insulating oils and other industrial dielectric fluids where SG varies between 0.60 and 1.40.

How results are presented Results are shown on the instrument display and printed by the integrated printer. Reported units include micrograms of water and mg/kg (ppm); KF‑LAB MkIII can additionally report results in %, mg/kg and micrograms for flexible reporting.

Technical specifications

• Test type: Coulometric Karl Fischer titration (reference: ASTM D1533).
• KF875 optimisation: target specific gravity SG = 0.875; one‑touch operation; typical sample volume 1 ml.
• KF‑LAB MkIII range: supports specific gravities 0.60–1.40; configurable sample sizes; default SG 0.875 available.
• Result units: micrograms (µg), mg/kg (ppm); KF‑LAB MkIII also supports % and other unit options.
• Calibration/compensation: ACE Control System for active error compensation.
• Power: battery operation for portable, on‑site use.
• Housing: transport case supplied for field deployment.
• Output: integrated printer and on‑screen display for immediate documentation.
• Applications: measurement of water in transformer insulating oils and other industrial oils for maintenance and diagnostic decision support.