Chapter
3
31
ML-7 Series/ML-9001A
3.3 Coolant Tubing (ML-7064A Only)
■
Coolant Tubing
Connect the included coolant hoses as follows.
Hose with red and blue wires: Between Chiller Unit coolant filter OUT and Head Unit IN
Hose without wires:
Between Control Unit IN and Head Unit OUT
■
Supplying Coolant, Releasing Air in Hoses
Coolant is used to cool the Head Unit.
1
To supply coolant, remove the cap over the supply outlet on the back of the Chiller Unit and use the
included manual pump to supply coolant from the pouch.
2
Stop supplying water when the water level is within the acceptable range on the gauge (above the
red/green border 2 cm from the top). Never overfill the unit. Over-filling may cause water to spill
from the tank into the chiller, causing rust or damage to the chiller.
3
Following the steps for starting operation, turn the marker on and start the chiller from the computer
or the Operating Unit (so that the chiller runs independently). The chiller starts up and coolant
circulates through the hoses.
For details on chiller startup, refer to 1.5, "Running the Chiller Alone (ML-7064A Only)" in the
Operating Unit manual.
3.3 Coolant Tubing (ML-7064A Only)
･
When connecting the hoses, ensure that the couplers and hose bands for each part are not
loose and that the hoses are not bent.
･
If you must install the Head Unit lower than the water tank of the Chiller Unit, contact us.
(This arrangement requires parts such as an additional stop valve.)
Always use purified water as the coolant.
If you use another type of water (tap water, industrial water, etc.) instead of purified
water, an alarm will sound approximately 30 minutes after startup regarding low fluid
resistance and the marker will stop. The recommended range of electric resistivity is 1
M
-cm to 3 M
-cm.
Acceptable range:
less than 2 cm
Water gauge
Summary of Contents for ML-7 Series
Page 4: ......
Page 8: ...4 ML 7 Series ML 9001A Contents...
Page 82: ...Chapter 4 78 ML 7 Series ML 9001A Chapter 4 Maintenance...
Page 83: ...Appendix...