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Safety Cautions
For safe use of this vacuum gauge, carefully read this manual and comply with the warnings and cautions
given in the manual.
Turn OFF power.
If the vacuum gauge fails, immediately turn OFF the power.
Use of a failed gauge may cause fire or electric shock. For repair, contact
your local ULVAC representative or ULVAC, Inc., JAPAN.
Turn OFF power.
If the vacuum gauge gets unusually hot or gives off smoke or unusual smell,
immediately turn OFF the power. Otherwise, fire can result. For safety,
contact your local ULVAC representative or ULVAC, Inc., JAPAN.
Turn OFF power.
Before touching any terminal on the control rear panel or if there is a
possibility of touching it, turn OFF the vacuum gauge power.
Turn OFF power.
Whenever mounting the gauge, unplug the power cable.
Check line voltage.
Prior to turning ON the power, make sure that the vacuum gauge operating
voltage and the supply voltage are in agreement. Connection of incorrect
power can cause damage to the vacuum gauge and fire.
Operating environment
Do not connect the sensor head to a test object of which pressure is in excess
of atmospheric pressure. If the pressure in the sensor head exceeds atmospheric
pressure, the sensor head will be damaged or it will pop out from the connector,
causing injury to the surrounding, including human body. If the pressure
exceeds atmospheric pressure, provide an isolation valve so that the pressure in
the sensor head does not exceed atmospheric pressure.
Don't use cables above rating.
The rating of the supplied power cable is 125 V 7 A. If the power exceeds
the rating, use another power cable. Use above the rating will damage the
gauge.
Don't disassemble.
Do not try to disassemble the vacuum gauge (controller, measuring unit,
sensor head cable and sensor head).
Don't modify.
Do not modify the vacuum gauge (controller, measuring unit, sensor head
cable and sensor head). If it is modified, its functions are not warranted.
Also fire or electric shock may result.
Check connection.
For safety reasons, ground the GND terminal of the controller.
Operating environment
Do not use the gauge in a place where it may be splashed with water. If it is
splashed with water, failure, earth leakage or fire can result.
Ventilation
Do not plug the air vents of the vacuum gauge controller. If the air vents are
plugged, heat will be contained inside and the gauge may be damaged. The
gauge will not indicate normal values either.
Keep out foreign matter.
If foreign matter like metal fragments or combustibles are admitted into the
vacuum gauge through the air vents or other openings, remove them.
Otherwise, the vacuum gauge may be damaged.
