1、 Overview

The FD-F ceramic raw material moisture meter is a high-performance, digital moisture measurement instrument that our company has introduced advanced foreign technology for the first time in China. The instrument adopts the high-frequency principle, digital display, and integrates sensors with the main body. It is equipped with multiple gears to measure the moisture content of ceramics, refractory materials, molding sand, and other materials. This instrument has a wide range of moisture measurement, high accuracy, clear display, fast measurement, stable performance, reliable indicators, and is small in size and light in weight. It can be carried on site for rapid detection and is easy to use. It is an ideal instrument for detecting the moisture content of ceramic powder, refractory material powder, mud and other ceramics, molds, and construction industries.

2、 Main features

1. Introduce advanced foreign technology, import chips, and assemble domestically.

2. The unique sensor design and manufacturing method have a penetrating ability beyond the general range.

3. The proprietary sensor technology has a wide working range, can be inserted for measurement, and displays quickly.

4. Stable performance and excellent quality.

5. The portable instrument housing is a proprietary design.

6. The instrument design is exquisite and the structure is compact.

3、 Working environment

Temperature:- 5℃～+ 50℃

Humidity: ≤ 85%RH

4、 Working principle

This instrument adopts advanced foreign technology and the high-frequency principle, which means that there is a natural frequency inside the instrument. The frequency transmitted into the machine through the sensor varies depending on the moisture content of the measured object. The difference between the two frequencies is compared and converted into a digital display through a frequency current converter.

5、 Technical performance

1. Measuring moisture range: 0~80%

2. Accuracy: 0%~10% Accuracy: ± 0.1%

10%~40% accuracy: ± 0.5%

40%~80% accuracy: ± 1%

3. Response time: 1 second

4. Display: 3 1/2 digit LCD digital display

5. Probe length: 200mm

6. Usage environment:- 5℃～+50℃

7. Power supply: One 9V (6F22 type) laminated battery

8. Volume: 160 × 60 × 27 (mm)

9. Weight: 200 grams

6、 Instructions for use

The moisture meter is a contact type measuring instrument, and the measurement premise is that the sensitive part of the sensor is mostly within 10mm of the front end. It should be in full contact with the measured object. Generally speaking, the sensitive part of the sensor should be as deep as possible into the interior of the measured object to reduce measurement errors.

If there is metal around the measured object, it will cause inaccurate measurement, so it is required that there should be no metal substance within 20cm around the sensitive part of the sensor inserted.

7、 Usage steps

1. Handheld instrument, screw the sensor probe into the body socket, turn the switch to ON, and the LCD screen will display 0 ± 00.5. If it is not within this range, slowly adjust the zero adjustment knob to make the number display within 0 ± 00.5.

2. Insert the probe into the test substance and wait for the number to stabilize. The displayed number is the moisture value of the test substance.

3. Numerical verification: When there is an error in the measured value, please turn the dial. For example, if the actual moisture content of the tested substance is 5% and the displayed value is 4% using the 7th gear test, rotate the dial counterclockwise to make the display screen show 5%, and then check the position indicated by the dial. When testing similar substances in the future, select this gear. If the displayed value is greater than the actual moisture value, rotate the dial clockwise to bring the value to the actual moisture value. Also remember the next gear, no need to verify in the future.

4. Replace battery: When the zero knob cannot be adjusted to within 0 ± 00.5 or the number shows irregular jumping, please replace a 9V (6F22) battery. Push the battery back cover upwards and replace it with a 9V battery. If the battery is charged, open the battery cover, take out the battery, and use a small screwdriver to adjust the small copper screw (potentiometer) on the side. If it is positive, adjust it counterclockwise, otherwise adjust it clockwise.