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HF-TC-636 Water Soluble Acidity Tester
The Water Soluble Acidity Tester extracts water-soluble acid from insulating oil and measures its pH value. It evaluates oxidation aging of transformer oil and identifies potential corrosion hazards to oil-filled power equipment.
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HF-TC-636 Water Soluble Acidity Tester is equipped with a large-screen LCD display and controlled by a microprocessor. It can automatically complete heating, constant temperature control, oscillation, sampling, testing, cleaning and printing according to user settings. It can test 1 to 3 samples in a single run to shorten testing time. A USB interface is available for communication with computers.
Performance Specifications
| Item | Specification |
|---|---|
| Measuring Range | pH 3.6 ~ 7.0 |
| Minimum Display Unit | 0.1 |
| Constant Temperature Accuracy | ±2℃ |
| Measurement Error | ≤±0.1 pH |
| Ambient Temperature | 5℃ ~ 45℃ |
| Relative Humidity | ≤85% |
| Power Supply | AC (220±10%) V, 50Hz±1Hz |
Water Soluble Acidity Tester | Application
The Water Soluble Acidity Tester is used to detect the pH value of water-soluble acid extracted from insulating oil such as transformer oil and turbine oil.
It evaluates the oxidation aging degree of oil, judges corrosion risks to transformer windings and insulating paper, and guides oil maintenance, regeneration or replacement. It is essential for power system preventive tests.
It evaluates the oxidation aging degree of oil, judges corrosion risks to transformer windings and insulating paper, and guides oil maintenance, regeneration or replacement. It is essential for power system preventive tests.
Applicable Test Items for Water Soluble Acidity Tester
Applicable Oil Samples
- Transformer oil (new oil incoming acceptance & in-service preventive test)
- Turbine oil for power generation units
- Fire-resistant anti-fuel oil
- Other mineral insulating oils & industrial lubricants
Applicable Test Projects
- Routine preventive test for oil-filled power equipment in substations and power plants
- Acceptance inspection of newly delivered insulating oil
- Aging monitoring of operating insulating oil
- Evaluation of corrosion risk to transformer windings and insulating paper
- Quality inspection for oil regeneration, filtration and maintenance
- Laboratory testing for commodity inspection, scientific research and petrochemical industry
Compliance Standard
GB/T 7598 Determination of water-soluble acid in transformer oil and turbine oil in service (colorimetric method)
Packing List — Water Soluble Acidity Tester
| No. | Description | Qty | Unit | Remarks |
|---|---|---|---|---|
| 1 | Water Soluble Acidity Tester Main Unit | 1 | Set | Model HF-TC-636 |
| 2 | Test Vessel Assembly | 3 | Set | For 1–3 samples testing |
| 3 | Power Cable | 1 | Pc | AC220V |
| 4 | USB Communication Cable | 1 | Pc | Connect to PC |
| 5 | Reagent Accessories | 1 | Set | Indicator & consumables |
| 6 | Operation Manual (Chinese & English) | 1 | Copy | |
| 7 | Calibration Certificate | 1 | Copy | |
| 8 | Shockproof Transport Case | 1 | Pc |
FAQ for Water Soluble Acidity Tester
Q1: What is the Water Soluble Acidity Tester used for?
A: It measures the pH value of water-soluble acid extracted from transformer oil, turbine oil and fire-resistant oil, to judge oil aging degree and corrosion risks to oil-filled power equipment.
Q2: What is the measuring range of this instrument?
A: Measuring range: pH 3.6 ~ 7.0, minimum display unit is 0.1, measurement error ≤±0.1 pH.
Q3: How many samples can be tested in one single measurement?
A: It can test 1 to 3 samples at one time, greatly improving testing efficiency.
Q4: Does the tester support data communication with computers?
A: Yes. Equipped with USB interface, it can connect with PC for data transmission and analysis.
Q5: What automatic functions does the instrument have?
A: It automatically completes heating, constant temperature control, oscillation, sampling, testing, cleaning and printing according to preset parameters.
Q6: What are the operating environmental requirements?
A: Ambient temperature: 5℃ ~ 45℃; relative humidity ≤85%. Power supply: AC (220±10%) V, 50Hz±1Hz.
Q7: Which standard does the test comply with?
A: It follows GB/T 7598, the standard for determination of water-soluble acid in transformer oil and turbine oil.
Q8: Can it print test results?
A: Yes. The built-in printing function can directly output test reports after measurement.
Q9: What will happen if the test result shows low pH value?
A: Low pH means more acidic substances in oil. It may corrode metal windings and accelerate aging of insulating paper, threatening safe operation of transformers.
Q10: What maintenance should be done after testing?
A: Clean test vessels thoroughly, avoid residual oil and reagent contamination; keep the instrument dry and ventilated.
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