Ulvac UMP-40W, Instruction Manual

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18 ULVAC CRYOGENICS INCORPORATED
UMP-40W Cooling Water Connections
1) Connect the cooling water joint included in the same package to the cooling water IN and
OUT connectors.
The screw size of the connector is Rc3/8. Place seal tape on the screw part.
2) Connect the cooling water joint to the cooling water supply side.
3) Connect the cooling water hose to the water supply side and the UMP-40W water IN
connector, and water discharge side and UMP-40W water OUT connector.
4) Once the connections are made, open the main valve of cooling water supply to check that
the water flows in correct direction and no leakage is seen from the coupling or hoses.
5) When you use cooling water circulation system, set the water temperature at 20°C.
(*)Refer to “6.4 Cooling water (for UMP-40W)” for the allowable range of cooling water.
Nitrogen Gas Tube Connections
Place Nitrogen gas tube from the bottom hole and connect it to the gas connector of Dewar along
Helium gas pipe. Connect the other side to the Nitrogen gas supply port of a Nitrogen gas
generator.
“Nitrogen gas generator” remote cable connections
Connect a remote cable to the remote connector inside UMP-40W and the signal connector from
the back of GN-30i.
Be sure to connect the hose to the correct port. Wrong connection may result in damaging
cooling water tube and invites water leakage.
Water may leak if the connection between cooling water joint and hose is loose
Depending on water quality, scale might accumulate inside the cooling water tube, or the tube
might be corroded. It is recommended to use water circulation system when there is such
concern.
CAUTION
CAUTION
CAUTION