Automatic Acid Value Tester for Insulation Oil| XHSZ1811L
The XHSZ1811L oil acidity tester is a colorful screen automatic measuring instrument for accurately detecting the acid value of insulating oil. Available in XHSZ1811L (6 cup) and XHSZ181S (3 cup) configurations, it improves working efficiency and test accuracy, and reduces the operator's contact with samples and reagents, giving maximum protection to personal safety.
The acid value of insulating oil is a key indicator of oil aging: as transformer oil oxidizes during long-term service, organic acids are formed which accelerate the degradation of paper insulation and corrode metal parts. Regular acid value testing is therefore an essential part of transformer oil supervision and condition-based maintenance programs.
Applications & Target Audience: The XHSZ1811L is positioned as an automatic acid value tester for insulating oil aging supervision, distinct from flash point, BDV, moisture and DGA analyzers in the same category, as it quantifies the oxidation and aging degree of the oil itself. It is engineered for electric power companies' oil testing laboratories performing routine transformer oil aging supervision, oil regeneration and refining plants checking the acid value of reclaimed oil, transformer maintenance and overhaul teams assessing oil quality after repair, lubricating and hydraulic oil manufacturers performing batch QC, and petroleum research laboratories studying oil aging behavior.
Key Specifications
| Parameter |
Specification |
| Model |
XHSZ1811L (6 cup) / XHSZ181S (3 cup) |
| Test Range |
0.002 ~ 1mg KOH / g |
| Measurement Error |
≤ ± 0.005mg KOH / g |
| Reproducibility |
≤ 0.005mg KOH / g |
| Applicable Temperature |
10ºC ~ 45ºC |
| Applicable Humidity |
≤ 85% RH |
| Power Supply |
AC220V / 50Hz |
| Power Consumption |
50W |
Advanced Features
Fully automatic operation: just inject the sample into the sample cup and place it in the sample cup hole; the instrument automatically searches for the sample, extracts and injects it, performs blank value titration and measurement, automatic cleaning, shutdown, display and printing of results;
One to six samples can be measured at one start, which is convenient to use and highly efficient;
Equipped with standard acid and calibration procedures for calibration instruments, users can calibrate the instrument and neutralizing solution at any time to overcome the defects of the concentration change of the neutralizing solution;
The instrument automatically deducts the background value of the extract, which overcomes the influence of the change in the background value of the extract on the result, making the test results more accurate and reliable;
Colorful screen display with automatic measurement workflow, reducing the operator's contact with samples and reagents and protecting personal safety;
All interfaces will be made and displayed in English after your order.
Applications & Oil Aging Supervision
In power transformers, the acid value of insulating oil rises as the oil oxidizes under the combined effect of heat, oxygen and moisture. High acid values indicate accelerated aging and can lead to sludge formation, reduced cooling efficiency and accelerated paper insulation degradation. The XHSZ1811L provides power utilities and oil laboratories with a fast, accurate and operator-safe tool for routine acid value monitoring.
With its automatic background deduction and self-calibration with standard acid, the instrument maintains long-term accuracy even when the neutralizing solution concentration changes, reducing reagent consumption and maintenance workload.
Each unit is delivered with a warranty certificate and after-sales service support, and customization is available to match specific project requirements.
FAQ
Q1: What does the XHSZ1811L measure?
It automatically measures the acid value of insulating oil in the test range of 0.002 ~ 1mg KOH/g, with a measurement error of ≤ ± 0.005mg KOH/g and reproducibility of ≤ 0.005mg KOH/g. The acid value reflects the oxidation and aging degree of the oil, which is an important parameter for transformer oil supervision.
Q2: How many samples can be tested at one time?
One to six samples can be measured at one start with the XHSZ1811L 6-cup configuration, while the XHSZ181S 3-cup configuration is available for laboratories with lower throughput. The fully automatic workflow covers sample searching, extraction and injection, blank value titration, measurement, cleaning, shutdown, display and printing.
Q3: How does it ensure test accuracy?
The instrument automatically deducts the background value of the extract, overcoming the influence of extract background changes on the results. It is also equipped with standard acid and calibration procedures, so users can calibrate the instrument and the neutralizing solution at any time to overcome the defects of neutralizing solution concentration changes.
Q4: Is it safe for operators?
Yes. The automatic measurement workflow greatly reduces the operator's contact with samples and reagents, giving maximum protection to personal safety. The operator only needs to inject the sample into the sample cup and place it in the sample cup hole, and the instrument completes the whole test process automatically.
Q5: What are the operating environment requirements?
The applicable temperature is 10ºC ~ 45ºC and the applicable humidity is ≤ 85% RH. The instrument works with AC220V / 50Hz power supply with a power consumption of only 50W, and all interfaces will be made and displayed in English after your order.
Your message must be between 20-3,000 characters!
english
français
Deutsch
Italiano
Русский
Español
português
Nederlandse
ελληνικά
日本語
한국
العربية
हिन्दी
Türkçe
indonesia
tiếng Việt
ไทย
বাংলা
فارسی
polski
