Datasheet Content
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:
