testo 260 is a cooking oil tester launched by testo, which can measure the acid value, peroxide value, peroxide value stability and other indicators of cooking oil.
The Testo 260 is an electronic device designed to measure the quality of cooking oil by detecting polar components, which indicate decomposition. The device uses a capacitive measurement principle to analyze the oil's dielectric constant. It features color-coded signal lamps to provide immediate visual feedback on the oil's condition, ranging from 'OK' to 'USED'.
The manual details the assembly of the device, power supply requirements using a 9V block battery, and the specific procedure for preparing a sample. It explains how to interpret the three main indicators: green for good oil, red for spoiled oil, and alternating flashing for old oil. Additionally, it covers the function test using water to verify device accuracy and provides technical specifications such as the operating temperature range of +25 to +35 °C.
| Measurement Principle | capacitive, evaluation of dielectric constant |
|---|---|
| Accuracy | +0.5% polar components |
| Oil Temperature Range | +25...+35 °C |
| Operating Temperature | 0...+50 °C |
| Storage Temperature | -20...+70 °C |
| Battery Type | 9V block, 6F22 |
| Battery Life | approx. 80h |
| Warranty Period | 12 months |
Flashing alternately between red and green indicates that the cooking oil is old and additional polar components are contaminating it.
The oil temperature must be between +25 °C and +35 °C for accurate measurement.
The result can be read after 3 to 5 seconds.