CBM Digital vacuum gauge

fe’ & S (o € MEEQHIGH QUALITY VACUUM METER HIGH QUALITY VACUUM METER --- PAGE BREAK --- INTRODUCTION: The vacuum gauge is an instrument for measuring the vacuum degree of the system, distinguishing the merits and demerits of the vacuum pump, vacuum leak detection and so on. In the vacuum operation, it is necessary to judge whether the air tightness of the vacuum pump is up to the standard, otherwise the air, moisture, smoke, impurities and other impurities in the system cannot be discharged. Therefore, vacuum gauge is widely used in vacuum pump manufacturing, refrigeration, military, metallurgy and other industries. 19S5ZH* brand WK-VG89 vacuum gauge adopts intelligent control system and pirani professional vacuum sensor, measuring range from atmospheric pressure of about 100kPa to the limit vacuum (0.1pa), you can clearly see the whole process of vacuum pumping. Welcome to buy our products. FEATURE %* The vacuum was measured at 1ATM~ 0.1Pa. * Target vacuum alarm function. * One key full degree calibration. * System vacuum leak detection, identify the advantages and disadvantages of vacuum degree. * Portable design, battery power supply, power display, automatic shutdown (no operation for 10 minutes), etc. TECHNICAL PARAMETERS Range 1ATM(approximately 100000Pa)~0.1Pa, g 750000~0.75Micron 0.1Pa~1000Pa; Accuracy Reading + 5%(at20°C) 0.1Pa(<10Pa);1Pa(<100Pa); Resolution 10Pa(<1000Pa) Unit Pa,mBar,mmHg,mTorr,InHg,Microns Battery life 40 hours(4 x AA battery) Maximum overload pressure 0.5MPa/72PSI Operating Temperature | -5~50°C(-23~122F) 90db,shut down after 10 seconds --- PAGE BREAK --- INSTRUMENT OVERVIEW LCD Display BUTTON: [9] Backlight switch (short press) / Calibration(long press) Battery cover(4 x AA battery) Sensor connections 7/16"-20UNF Female BUTTON: WA Power on(short press) / Power off(long press) BUTTON: por Select the unit(short press) / Alarm setting(long press) OPERATION 1. Remove the battery cover, make sure the battery polarity is placed correctly, install the battery cover. a 2. Press YA , "long beep" power on vacuum meter. 3. Press prs select the unit of measurement. 4. Connect vacuum meter to vaccum pump or vacuum system measure vacuum degree. 5. Long press WAR "short beep" power off vacuum meter. ALARM SETTING LONG PRESS SHORT PRESS SHORT PRESS ~ SELECT SET ENTER SET MODE LONG PRESS irs] START FINISH — SHORT PRESS SET PARAMETERS 0~9 [ow CANCEL 8 * After the alarm setting is completed, enter the alarm mode (5S"beep") until the target vacuum alarm is reached (the alarm is automatically cancelled 20S later). ~ FULL SCALE CORRECTION In the_state of starting up in the atmospheric environment, long press[@, the screen would display "CALI" to correct the vacuum gauge fullness (Note: the altitude, climate and other factors affect the timely correction). --- PAGE BREAK --- ZERO CALIBRATIONZERO CALIBRATION The company has already calibrated the vacuum gauge to zero point. If you have any further questions, please email us: Dobest@cnzongheng.com IMPORTANT NOTES REGARDING VACUUM LEAK TEST When detecting system leaks under high vacuum (less than 1000 microns), connect the gauge directly to the system. If additional connections are required, use copper tubes (do not use rubber tubes) and high vacuum shut-off valves. Standard charging hoses and shut-off values of manifold gauge sets may leak a small amount under high vacuum conditions. When the high vacuum test is initiated, the gauge count may ‘drift’ until the system is balanced. After a brief stabilization period (5 minutes), the vacuum reading would go stable. Continued ‘drift’ vacuum readings may indicate a leak in the system. WARNING!! Do not turn off the vacuum pump until the gauge is disconnected from the system. Otherwise high pressure may be generated in the system and oil may enter the sensor chamber. CLEANING SENSOR Observe the gasket after each vacuum measurement. If oil is found, there may be oil in the sensor chamber. Follow these steps: 1.Disconnect the sensor compartment from the socket. 2.Remove the washer and pressure reducer from the assembly and clean it. 3.Clean the gasket, clean the sensor chamber with acetone, wash repeatedly until the oil is completely removed, and all parts are allowed to dry for 2 to 4 hours and volatilize. 4.Reassemble the parts and test the vacuum gauge. NO DISPLAY Check battery and electrode. WARNINGS Please wear goggles and gloves. Keep in a dry place, do not let moisture enter the vacuum gauge. WARRANTY This product is warranted for one year, but does not cover damage caused by abuse, misuse, or wear and tear in normal use. The warranty is effective from the initial user and the warranty time is calculated from the time of purchase. PASSED DATE: