Troubleshooting; Warranty - MasterCool 98061 Gebrauchsanweisung

• Once warm-up is complete, connect the vacuum gauge to the system and start the vacuum
pump. The vacuum countdown will start from atmospheric pressure (ATM) ------. Depending on
the size of the system it may take some time for the numeric vacuum reading to appear on the
LCD. The numbers descend from 20,000 Microns or corresponding units. Once the target level
is reached and passed the indicator light will come on. If the vacuum gauge is set at ENABLE,
the gauge will power off after 10 minutes. Simply press the ON/OFF button and allow 30
seconds for warm-up and true vacuum reading to appear.
• Press the ON/OFF button to turn the unit off.
IMPORTANT NOTE REGARDING VACUUM LEAK TEST:
When checking a system for leaks under high vacuum (less than 1000 microns), connect
the vacuum gauge directly to the system. If additional connections are required use
copper tubing (do not use rubber hoses) and high vacuum shut-off valves. Standard hoses
and manifold gauge set shut-off valves may have a small amount of leakage under high
vacuum.
When initiating a high vacuum test, the vacuum gauge reading may "drift" higher until the
system has equalized. After this short stabilization period (5 minutes) the vacuum reading
should hold steady. An upward "drift" of the vacuum gauge reading may indicate a leaking
system.
WARNING!! Never stop the vacuum pump unless the vacuum gauge is
disconnected from the system. Failure to do so may create a higher
pressure in the system that can cause oil to enter the sensor chamber.
SENSOR FIELD CALIBRATION
1. Turn unit ON with sensor at ATM.
2. Hold UNIT key until CAL is displayed.
3. Within 1 second, press ENTER. AU CAL will be displayed.
4. Press ENTER and wait until END CAL is displayed.
5. Turn unit OFF. Sensor is calibrated.
CLEANING THE SENSOR
Observe the gasket after each vacuum. If oil is present, it is possible that there is a presence of
oil in the sensor chamber. Follow these instructions:
1. Disconnect the sensor chamber from the socket.
2. Remove the gasket & depressor from the assembly to clean.
3. Clean the gasket. Rinse the sensor chamber with acetone. Repeat until the oil is completely
removed. Allow 2 – 4 hours for all of the parts to dry and evaporate.
4. Reassemble all of the parts and check the unit.
DEPRESSOR (PART #42014)
GASKET (PART #42010)
1/4" FL-F SWIVEL NUT

TROUBLESHOOTING

Low Battery Indicator:
A special icon will appear in the upper right hand corner of the LCD when the battery
+ -
must be replaced.
No Display:
Check the battery and polarity.
888888:
888888 is a sign of an interrupted connection between the sensor assembly/cable or damaged
sensor filament. Check for loose connections. If 888888 is still showing please contact the
factory for assistance.
WARNINGS

WARRANTY

This product warrants against defects in material and workmanship for a period of one year. This
warranty does not cover failure due to abuse, improper usage, or progressive wear and tear.
Warranty becomes valid to the original user, effective on the purchase date. A copy of an invoice
along with a registration card must be sent to 1 Aspen Drive, Randolph, NJ 07869 to validate the
warranty. For further service please contact (973) 252-9119.
SENSOR TUBE
SENSOR CHAMBER
Wear Safety Glasses. Wear Gloves.
Keep in a dry place.
Do not allow moisture to enter the unit.
www.mastercool.com
SOCKET
CABLE
3