Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of automatic transformer oil water-soluble acid tester in China. If you're going to wholesale durable automatic transformer oil water-soluble acid tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
NRYH300L/800L Automatic Transformer Oil Water-Soluble Acid Tester is designed for the quantitative determination of water-soluble acid in transformer oils and insulating oils used in electrical equipment. The presence of water-soluble acids accelerates the oxidation of oil and causes severe corrosion of metals and solid insulating materials, directly impacting equipment service life. This instrument automates the entire testing process-including heating, constant temperature control, reciprocating oscillation, static settling, sampling, indicator addition, colorimetric testing, and cleaning-in strict accordance with the standard GB/T7598-2008 Determination of Water-Soluble Acid in Transformer Oil in Operation. Available in 3-cup (NRYH300L) and 6-cup (NRYH800L) configurations, this microprocessor-controlled instrument significantly enhances laboratory efficiency and reduces operator intervention.
Product Parameters
|
Parameter |
NRYH300L (3-Cup Model) |
NRYH800L (6-Cup Model) |
|
Measuring Range (pH) |
3.6 to 7.0 |
3.6 to 7.0 |
|
Minimum Display Unit (pH) |
0.1 |
0.1 |
|
Measurement Error (pH) |
≤ ±0.1 |
≤ ±0.1 |
|
Repeatability (pH) |
≤ 0.1 |
≤ 0.1 |
|
Constant Temperature Accuracy |
±2℃ |
±2℃ |
|
Oscillation Mode |
Reciprocating |
Reciprocating |
|
Sample Capacity |
1 to 3 samples simultaneously |
1 to 6 samples simultaneously |
|
Display |
800×480 Color Touch Screen LCD |
640×480 Color Touch Screen LCD |
|
Power Supply |
AC220V±22V, 50Hz±1Hz |
AC220V±22V, 50Hz±1Hz |
|
Ambient Temperature |
5℃ to 45℃ |
5℃ to 45℃ |
|
Relative Humidity |
≤ 85% |
≤ 85% |
|
Data Output |
Thermal Printer & Wireless Transmission |
Thermal Printer & Wireless Transmission |
Product Advantages
- Multi-Sample Efficiency: Designed to test up to 3 samples (NRYH803L) or 6 samples (NRYH800L) in a single run, drastically shortening total testing time and improving workflow throughput.
- Precise Colorimetric Measurement: Employs a microprocessor-controlled system with bromocresol green and bromocresol violet indicators to ensure accurate detection of pH values between 3.6 and 7.0 with a minimal error of ≤ ±0.1 pH.
- Intelligent Operation: Features a large color touch screen LCD with a complete prompt interface, allowing for standard testing, custom test starting points, and component diagnostics.
- Water Quality Correction Function: Includes a white balance adjustment feature to correct for local water quality variations, ensuring test accuracy under different environmental conditions.
Main Application Scenarios
- Power System Substations: Routine monitoring of transformer oil quality to detect early-stage oxidation and prevent corrosion of internal windings and insulation in large power transformers.
- Industrial and Mining Enterprises: Maintenance of oil-filled electrical equipment such as circuit breakers, reactors, and bushings to assess insulating oil condition and ensure operational safety.
- Electrical Equipment Maintenance: Used by maintenance teams to perform condition-based assessment of insulating oils, predicting the remaining service life of equipment solid insulation materials.
- Oil Quality Supervision Laboratories: Standardized testing for compliance with GB/T7598-2008, providing accurate reports on the acidic byproducts formed during oil aging and oxidation processes.
Related Products
Factory Show
Frequently Asked Questions (FAQ)
Q1: What is the principle of the Automatic Transformer Oil Water-Soluble Acid Tester and why is the indicator position critical?
A: The test uses a colorimetric method. The instrument adds bromocresol green (blue tube) and bromocresol violet (red tube) indicators to the extracted water sample. The indicators must not be placed in the wrong position within the instrument, as this will result in test failure or erroneous pH readings.
Q2: What are the requirements for the water used in the test procedure?
A: The test strictly requires the use of distilled water. Specifically, the manual instructs to use 50ml of freshly boiled distilled water mixed with the 50ml oil sample. Tap water or untreated water will interfere with the water quality correction and pH measurement accuracy.
Hot Tags: automatic transformer oil water-soluble acid tester, China automatic transformer oil water-soluble acid tester manufacturers, suppliers, factory
