Huazheng Portable Transformer Oil Trace Moisture Tester

I. Overview
HZKF-2 oil trace moisture analyzer utilizes the Karl Fischer (Coulomb) method to precisely determine trace water content in diverse liquids, complying with standards including GB/T 7600, SH/T 0255, GB/T 6283, and SH/T 0246.

Renowned for high accuracy, rapid analysis, and stable, reliable results, it is widely employed across petroleum, chemical, power, environmental, and pharmaceutical industries. It efficiently measures moisture in:

Alcohols, Oils, Fats, Ethers, Esters, Acids

Alkanes, Benzenes, Amines, Organic Solvents

Pesticides, Phenols, Pharmaceutical Raw Materials

Various chemical, petroleum, pharmaceutical, and pesticide products.

II. Key Features & Functions

Display: 480×272 color touch LCD, Chinese UI

Measurement: High-sensitivity electrodes, fast endpoint detection, strong anti-interference

Accuracy: Patented constant current circuit + proprietary blank current correction

Formulas: 9 built-in; results in mg/L, ppm, mg/kg, or %

Efficiency: Adjust sample parameters during/after test; minimizes reagent use

Control: 9-step stirring speed & electrolysis gain

Diagnostics: Auto electrode fault detection

Data: Timestamped storage, RS232/RS485

Power: 5W standby

III. Technical Specifications

IV. Working Principle
The analyzer employs Karl Fischer Coulometric titration:

Reaction: Water reacts with iodine (I₂) and sulfur dioxide (SO₂) in a methanol/pyridine buffer:

H₂O + I₂ + SO₂ + 3C₅H₅N → 2C₅H₅N·HI + C₅H₅N·SO₃

C₅H₅N·SO₃ + CH₃OH → C₅H₅N·HSO₄CH₃

Electrolysis & Detection: Consumed I₂ is regenerated electrolytically:

Anode: 2I⁻ - 2e⁻ → I₂

Cathode: I₂ + 2e⁻ → 2I⁻ (and 2H⁺ + 2e⁻ → H₂↑)

Platinum electrodes precisely detect the reaction endpoint.

Quantification: Based on Faraday's Law, the moisture content (W, in μg) is directly proportional to the electrolytic charge (Q, in millicoulombs): W = Q / 10.722

1. When can I get a price quote?

You can contact us online or submit an inquiry. We typically provide a quote within 24 hours after receiving your request.

2. How do you handle after-sale service for overseas customers?

For issues occurring with our products, we offer:

12-month warranty coverage (see details below).

Online technical guidance to troubleshoot problems remotely.

Replacement parts shipped promptly based on your needs.

On-site support (if required): Our engineers can travel abroad to resolve critical issues.

3. What is the warranty period?

Our standard warranty period is 12 months (1 year). During this time, we provide:

Free technical support.

Replacement parts for manufacturing defects.

Solutions tailored to your specific issue.

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