Feature(may vary by option.)
●【Professional Vacuum Gauge】Digital vacuum gauge is suitable for dynamic monitoring of vacuum pressure changes in HVAC and heat pump systems. It can measure the real-time pressure when the refrigeration system is evacuated, helping you to accurately judge the dehumidification degree of the system and the removal degree of impurities (such as: oil, impurities, external gas, etc.). Micron gauge is used with vacuum pump and can also be used with refrigerant gauge to monitor the refrigeration system.
●【High Precision & Advanced Sensor】This digital micron gauge hvac uses a high-precision micron vacuum sensor, which can response quickly and accurately measure micro pressure changes in a vacuum. The measurement range of digital vacuum gauge HVAC is reduced to 0-14.5psi/0-100KPa/0-750,061umHg(microns), and the small measurement range further improves the accuracy. Measurement Accuracy: ±0.1%FS. Minimum Resolution: 0.01 microns/0.001psi/0.01kpa
●【Real-time Monitoring & Buzzer Prompt】HVAC vacuum gauge has 2 working modes:normal mode and monitoring mode.Short press the "SET" button to enter monitoring mode, if the current pressure is lower than the set pressure, it will sound a buzzer alarm continuously and the backlight will flash.When the pressure is higher than the set pressure, the alarm will disappear automatically.You can also press any key or wait for 30 seconds to dismiss the alarm.It helps you monitor vacuum pressure more easier.
●【13 Selectable Pressure Units&Large LCD Display with Backlit】Digital vacuum tester supports 13 pressure units, directly output data without conversion: mmHg, inHg, umHg, ftH2O, cmH2O, inH2O, Pa, KPa, mbar, bar, psi, Kgcm² and ozin². Digital micron gauge hvac has a large backlit display for clear readings even in dark environments.
●【Calibration Function&MAX/MIN Value Display】Long press the "CAL" button, the vacuum gauge hvac enters the calibration mode, and exits automatically after the calibration is completed. Short press the MAX/MIN button, the micron gauge hvac will display the maximum and minimum values of the test data after power on.
●【Battery Level Display&Rubber Handle & 2 Joint for Various Connection】HVAC vacuum gauge is powered by a 9V battery (included in the equipment), and the screen will display the battery level.The digital vacuum gauge hvac is designed with a rubber handle, which is comfortable to hold and not easy to slip. Micron gauge hvac is also equipped with a 1/4" sae extension straight joint and a 1/4" sae tee joint to meet various connection methods.
●【2-Year Warranty】We aim at trying our best to offer you the best product and services to make you unworried before/after the purchase. We offer a 2-year warranty. If you have any questions or doubts during use, pls feel free to contact us. Our professional technical team will help you solve the problem within 24 hours.
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Description
2 WORKING MODES: STANDARD MODE AND MONITORING MODE
● By default, the device starts in normal mode. To enter the monitoring mode, short press the SET button, and press it again to exit the monitoring mode.
● In the monitoring mode, the screen displays a flashing SET indicator, and the buzzer emits a single beep every three seconds, with a frequency cycle of 1Hz.
HOW TO SET PRESSURE ALARM VALUE?
● Regardless of the mode (monitoring or standard), press and hold the “SET” button to access the pressure value setting interface. In this interface, the SET indicator remains on, and the screen shows six zeros “000000”, with the decimal point positioned based on the selected unit.The rightmost zero starts flashing. To navigate through the numbers, press the “ UP/DOWN” key. Adjust the numbers from 0 to 9 using the up and down keys. Short press the “SET” button to switch digital position. The valid range for settings is 0-99kPa. Short press “SET” button again to exit and save the settings. After exiting, the device remains Standard mode, please remember to press the “SET” key again to re-enter the monitoring mode.
ATTENTION:
● Ensure that the set range does not exceed the maximum measurement range. For instance, if you choose kPa as the unit, the highest permissible setting is 99 kPa.
● If you input a pressure value exceed the maximum measurement range, an error message “Error” will be displayed on the screen after saving the setting by long-pressing the “SET” key. In such cases, the set pressure value becomes invalid and requires reconfiguration.
Technical Parameters：
Measuring range: 0~100 Kpa/0~14.5 Psi / 0~750000 microns
Measurement unit: mmHg, inHg, umHg (microns), ftH2O, cmH2O, inH2O, Pa, Kpa, mbar, bar, Kg/cm², psi, oz/in²
Measurement Accuracy: ±0.1%FS
Minimum Resolution: 0.01microns/0.001psi/0.01kpa
Set Alarm Thresholds: 0~100 Kpa/0~14.5 Psi /0~750000 microns
Temperature unit: °C/°F
Working temperature：-10~50°C (32-122°F)
Storage temperature：-20~50°C (14-140°F)
Power supply: 1* 9V battery
Weight: 400g
Unit Button: Short press to switch pressure units; Long press to switch between Celsius and Fahrenheit.
Set Button: Short press to enter monitoring mode. Long press to enter the pressure alarm value setting interface, then Long press again to save the setting and exit.
CAL Button: Long press to enter calibration settings, and exits automatically after the calibration is completed
MAX/MIN Button: Short press to switch between the maximum value and minimum value.
ON/OFF Button: Short press to turn on/off the backlight; Long Press to turn on/off the vacuum gauge.
Up/Down Button: Short press to setting alarm pressure and adjust other values. (Short press the Set button to switch digital position.)
INSTRUMENT CLEANING:
Contaminants such as oil can affect the accuracy of the vacuum sensor. Follow these steps to clean the sensor:
● Prior to cleaning, ensure the device is powered off.
● Apply medical-grade alcohol to both interfaces.
● Gently shake the instrument for a brief period.
● Remove any residual alcohol from the instrument
● Repeat this process at least twice
● Allow the instrument to air dry for a minimum of 1 hour before the next use.