Yokogawa GD402 Gas Density Meter Chinese Manual

Since such instruments exist, why not request them directly from Yokogawa Electric’s office in China? First, you can get to know the people at Yokogawa Electric’s China office who will assist you, and second, you can receive the most direct help.

Go to Baidu Wenku; there you can find detailed instructions, including technical parameters and operation guidelines. In summary, the GD402G gas density analyzer along with the GD40 probe can not only provide continuous measurements of gas density but also several other important parameters, such as specific gravity and molecular weight. The GD40 probe is an intrinsically safe explosion-proof probe. In all recognized application areas, it eliminates maintenance entirely. The GD402G densitometer is a microprocessor-based transmitter that comes in two types to meet the requirements of applications in normal areas and explosion-proof areas. In addition to displaying several key parameters, this transmitter also offers three different calibration methods for selection: automatic ； Semi-automatic and One-touch manual correction operations. ■ Features — Designed for fast response and high sensitivity in density measurement. Using Yokogawa's gas density analysis technology can also display specific gravity, molecular weight, and gas concentration. —Probe features 1. Not affected by external vibrations. 2. Excellent stability in the face of sudden changes in gas temperature (a 10°C change in gas temperature results in a variation of less than 1 g/m3). 3. The multi-point mode self-oscillation circuit minimizes drift caused by the sensor itself or by the adhesion of oil mist, dust, moisture, etc., to the sensor. 4. The sensor is easy to clean and regenerate. When contaminated by dust and/or oil mist, it can be easily cleaned and restored to its original condition. 5. Only routine maintenance is required. (For example, once every three months, depending on the application) — Simple and user-friendly; configuration can be done via the front panel on the instrument, or using an optional remote smart terminal. —Low installation cost: Both the explosion-proof and standard versions are designed to be easily installed on pipes. The wiring between the probe and the transmitter is based on two wires, minimizing installation costs.

I have a gentle question: are there any requirements regarding the properties of the gas for this type of gas densitometer, and what is its principle of operation?