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Product Details

■ Product Overview

Surface tension meter according to GB6541-86 Method for Determining the Oil–Water Interfacial Tension of Petroleum Products ( Annular method ) Standard requirements , Measure the surface tension of various liquids. ( Phase interface of wave one ) and the interfacial tension between mineral oil and water ( Liquid - Liquid-phase interface ) The instrument features a large-screen dot-matrix LCD display. , Unlabeled keys with full‑Chinese menu prompts , High degree of automation , Reliable performance , It offers excellent repeatability and extremely simple operation: after powering on, simply follow the on-screen menu prompts to complete all tests. The instrument features automatic temperature compensation, real-time clock control, power‑off data storage, printing, automatic averaging, and a redundant design. RS232 The interface supports direct connection to a computer for parallel operation and enables seamless transmission of test results to handheld devices, among other innovative features.

■ Technical Specifications

Display method : Large-screen dot-matrix LCD display with backlight function; Chinese-character menu prompts; assembly language included in the Chinese-character menu. GB654I All test and calculation contents specified in the standard.

Button : Unlabeled keys under the Chinese character menu prompts.

Measurement range : Insulating oil for power applications 2~100 millinewton / Rice and other petroleum products 2~200 millinewton / rice

Sensitivity :0.1 millinewton / rice

Accuracy :0.1 millinewton / rice

Resolution :0.1 millinewton / rice

Repeatability :0.3%

Applicable temperature :10~30 °C ( Typical value :25 °C )

Applicable humidity :(20~75)%RH

Power supply : Alternating current 220V ± 5% 50Hz

Power :20VA

Weight :10kg

■Product Selection Specification Table

Model number

Specifications and Parameters

NDZLY-III

( Single cup / Color touch screen )

 

It is primarily used to measure the surface tension of various liquids. ( Liquid–gas interface ) and the interfacial tension between mineral oil and water ( Liquid–liquid interface )。

1. Display method : Color touchscreen display, Chinese-character menu prompts, with assembly instructions included in the Chinese-character menu. GB6541 All test and calculation contents specified in the standard.

2. Measurement range :2~200 millinewton / rice

3. Sensitivity :0.1 millinewton / meter

4. Accuracy :0.1 millinewton / rice 5. Resolution :0.01 millinewton / rice 6. Repeatability :0.3%7. Automatic temperature control :25 °C± 1 °C

NDZLY-IV

( Single cup / With constant temperature control / Color touchscreen )

 

It employs a proprietary fast-response electromagnetic force‑balance sensor. , Improved measurement accuracy and linearity. ; Instrument calibration requires only a single-point calibration. , It addresses the previous-generation sensor’s need for multi-point calibration, eliminating the requirement for zero‑adjustment and full‑scale potentiometers. ; Measurement range :0-200mN , accuracy :0.1% Reading ± 0.1 mN/m Sensitivity :0.1 mN/m , Resolution :0.1/ rice m

Keywords:

NDZLY-III Series Fully Automatic Surface Tension Meter

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