NAVAC NMV1 User Manual

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12. ZERO CALIBRATION
Connect vacuum gauge to system to be evacuated when internal pressure is 0.75 Microns, then
press and hold button "SAVE/CAL" for 3 seconds until the display shows "0.75 Microns" to
complete the zero calibration.
13. SENSOR CLEANING
During use, it is possible that the sensor may be contaminated by foreign matter, and the
sensor may need to be cleaned.
Follow these instructions:
13.1 Turn off the vacuum gauge, and remove all the batteries.
13.2 Shake to remove any foreign matter.
13.3 Using an eye dropper or a syringe, fill the sensor chamber with alcohol or isopropanol.
Tighten the cap and shake, remove cap, then rinse the sensor chamber for 3~4
times with alcohol or isopropanol.
13.4 Thoroughly dry the sensor by evacuating, or allow to air dry for at least 2 hours before
storage.
13.5 Inspect the vacuum gauge and perform a Zero Calibration.
14. BATTERY INSTALLATION
Remove battery compartment cover, install three "AA" batteries and make sure they are
in the correct orientation.
Note:
Remove batteries from the instrument if it will be unused for a long period of time.
15. TROUBLESHOOTING
Cannot Power On
Inaccurate ultimate vacuum
16. APPENDIX
Included with Vacuum Gauge: 3×AA Batteries, Connection accessories, Shockproof tool bag,
Instructions.
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Check the batteries and the polarity
Make sure all flare connections are tight. Zero
Calibration / Clean the sensor. Check seal
gasket for damage, replace if necessary.
User Manual
NMV1
Micron Vacuum Gauge
Failure to follow warnings could
result in death or serious injury.
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FOR FUTURE REFERENCE