First, an overview 
 The FD-G1 induction paper moisture meter is a company introducing advanced foreign technology was first introduced in the domestic high-performance, digital moisture measuring instruments. The instrument uses high-frequency principle, the figures show that the sensor and the subject as one, with six stalls used to measure a variety of paper, cardboard, corrugated cardboard, cartons, pulp water. Wide range of the instrument measuring moisture, high precision, clear, rapid measurement, stable performance, reliable indicators, and the small size, light weight, portable rapid detection in the field, easy to use. Paper, printing, packaging industry is the ideal instrument to test water in the production process. 
 Second, the principle 
 The instrument to introduce foreign advanced technology uses high-frequency principle, that the instruments are equipped with a natural frequency of the measured object moisture, two frequency difference between the sensor pass into the machine on a different frequency, frequency-current converter to convert the current by the ADC to convert the digital display. 
 Third, the technical parameters 
 1, measuring the moisture range: 0 ~ 40% 
 2, the use of the environment: -5 ° C to +60 ° C 
 3: 3? The LCD digital display 
 Accuracy: ± 0.5% 
 5, size: 160 × 60 × 27 (mm) 
 6, response time: 1 seconds 
 7, a laminated battery power supply: 9V (6F22 type) 
 9 Weight: 200 g 
 Fourth, the method of operation 
 1, according to the measured object select stalls. 
 A file: copperplate paper, copy paper, fax paper 
 Two files: newsprint, paperboard, coated paperboard 
 File 3: corrugated paper, writing paper, kraft paper, cardboard 
 Paper the following four files: 50 g file: pulp paper 
 6 files: carton, corrugated board 
 The paper structure, the dielectric constant above stalls for the proposed stall. If in error, please compare checksum. Such as: measuring a known moisture content of 8% of the paper, turn the dial to stall for a six-speed, digital display 08.0, after re-measurement of similar paper should stall dial to 6-speed. 
 2, the hand-held instrument (probe not in contact with the analyte), open the switch (open key to toggle ON), the figures should show less than ± 00.5. If not within its scope, should be slow to adjust the zero knob and digital display can be less than ± 00.5. 
 Three measurements: the instrument using electromagnetic scanning technology, the scan depth of 50mm. Therefore, measurement of paper thickness should be at least 50mm or more. The probe pressed paper, round sensor in contact with paper is a straight line, and instrument and paper remain parallel; turn on the switch (switch ON), be digitally stability, the number shown is the analyte of water score. 
 Note: The high-frequency strong penetrating measurements, the bottom and around the measured object can not have iron or magnets. 
 Fifth, replace the battery 
 When the display or adjust the zero knob adjustment can not be transferred to less than ± 00.5 or digital hopping on the law, the batteries should be replaced. 
 Specific methods: 
 The battery cover down flat push to replace a 9V (6F22) batteries. 
 Six, maintenance 
 When there is sufficient power, and can not be transferred to within ± 00.5, open the battery cover, remove the battery (you can adjust the potentiometer) with a small screwdriver to adjust the copper screws. If the positive tone of less than zero, counter-clockwise to adjust the potentiometer. Conversely, a clockwise adjustment. 

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