Ulvac DTU-20 Series, Инструкция по эксплуатации

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(17) Please take shelter at once when the gas leaks by any chance due to the breakdown of
the pump. And, please ventilate the air in the room enough. Moreover, please enter the
room of the device after wearing the hazard mask when you confirm the device. Do not
detach the hazard mask until safety is confirmed.
Suck gas [explosive gases]
(18) No explosive gases in side the pump.
Suck gas [Poisonous gases]
(19) It is necessary to connect the vehicle exhaust emission of the pump with a special ventilation
duct or exclusion device. And, do not discharge the vehicle exhaust emission indoors.
(20) Please confirm the thing that doesn't leak to the piping of the pump inhalation side and the
exhalation side.
(21) It is necessary to install the gas leakage detector for the suck gas on the device. When the
leakage Is detected, it is necessary to do the setting that intercepts the gas inflow to the pump.
(22) Please exchange the consumable parts to prevent the leakage from the pump every 5000
hours. ( The bearing is excluded.)
(23) Please take shelter at once when the gas leaks by any chance due to the breakdown of the
pump. And, please ventilate the air in the room enough. Moreover, please enter the room of
the device after wearing the hazard mask when you confirm the device. Do not detach the
hazard mask until safety is confirmed.
Grounding Instructions [Plug]
(24) This product must be grounded. In the event of an electrical short circuit, grounding reduces
the risk of electric shock by providing an escape wire for the electric current. If the product is
equipped with a cord having a grounding wire with an appropriate grounding plug, the plug
must be plugged into an outlet that is properly installed and grounded in accordance with all
local codes and ordinances.
(25) Improper installation of the grounding plug can result in a risk of electric shock. If repair or
replacement of the cord or plug is necessary, do not connect the grounding wire to either flat
blade terminal. The wire with insulation having an outer surface that is green with or without
yellow stripes is the grounding wire.
(26)
Check with a qualified electrician or serviceman when the grounding instructions are not
completely understood, or when in doubt as to whether the product is properly grounded. Do
not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a
qualified electrician.
(27) DTU-20B is for use on a nominal 115_V circuit, and has a grounding plug similar to the plug
illustrated in sketch A in figure. A temporary adapter similar to the adapter illustrated in
sketches B and C may be used to connect this plug to a 2_pole receptacle as shown in
sketch B when a properly grounded outlet is not available. The temporary adapter shall be
used only until a properly grounded outlet (sketch A) is installed by a qualified electrician.
The green colored rigid ear, lug, or similar part extending from the adapter must be
connected to a permanent ground such as a properly grounded outlet box cover. Whenever
the adapter is used, it must be held in place by a metal screw.
Quotation from UL1450
Grounding Instructions [Field Wiring]
(28) This product must be connected to a grounded, metallic, permanent wiring system,
or an equipment-grounding terminal or lead on the product
! Danger
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