Ulvac Band Heater, Instruction Manual, Page: 15 / 22

Band Heater (Silicon Rubber Heater) Instruction Manual
ULVAC CRYOGENICS INCORPORATED 3
Table 2 The pin connector list
6. Installation
1) Cover the pump or trap case surface with the heater.
2) Pinch the spring with pincers, place on hook on opposite side and deliberately twist
it around hook.
3) Solder the electric cable (customer prepared) to the provided power side connector.
Be sure to secure the soldered portion with the contraction tube.
For the electric cable, use shop bought standard cable (specification cable).
Also, be certain to affix with the clamp portion of the power source connector so that
the power source cable does not move.
・
The soldering type tag (SCN or SAC) in the vicinity of the power connector shows the use
of Pb-free solder on the soldered portion. Do not use together with lead solder.
・
This heater is made by covering the heating element (nichrome wire) with a silicon rubber
sheet. Do not cut or perform hole drilling.
7. Operation
（１）
After shutting off the operation of the cryopump and super trap, switch on the
heater.
（２）
Shut off heater electricity when the temperature of the inner kit (panel, baffle,
shield, etc.) of the cryopump or the super trap reaches the predefined
temperature.
As a rough indication, keep the temperature at 273K (
０℃
) when the volume of
water is little, and 300K (30
℃
) when the volume of water is large.
Especially, when the water volume is large it is recommended that the electricity
remain on until the roughing complete.
Terminal type Power source
(Heater side model number)
Power source
( Power side model Number)
(attachment)
3pins NCS-253-Ad NCS-253-P
3pins NCS-303-Ad NCS-303-P
2pins NJC-242-AdM NJC-242-PF
2pins NJC-243-AdM NJC-243-PF
CATION