Buchi DuMaster D-480, Operation Manual, Page: 106 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
6 - Starting up and shutting down the instrument 106

Room temperature should be constant.

Analyzer and peripherals must be protected from drafts and direct heat.

An air-conditioned room is advantageous as the analyzer emits heat.

Take suitable action to avoid electrostatic discharge. Electrical discharges can lead to
malfunctions of the instrument.
Specific requirements
The following lists specific requirements to be met by the installation site
Type Specific requirements
Room

Mode of protection IP 20.

Dry room.

Well ventilated.
Instrument setup 
Only on heat-resistant surface.

A stable lab table is suitable as well.
Space required including PC and printer 1.30 m x 0.55 m (W x D).
Space required by instrument alone 0.48 m x 0.55 m x 0.55 m (W x D x H).
Clearance from instrument to wall At least 20 cm clearance all round so that the fans will
work.
Ambient temperature 
Minimum: + 15°C.

Maximum: + 35°C.
Mains voltage 
100–230 Volt AC ± 10 %; 50–60 Hz.

Connection 1,4 kVA.

Mains voltage and frequency must match the
specifications on the instrument's type plate.
Power connections 
2 power sockets and socket strip with 4 sockets to
connect peripherals or 5 sockets.

Protection class I, protective conductor connection.

Fusing 16 A delay action.
Gas supply

Gas supply must be available nearby the instrument.

Connection to device by means of a pressure reducer.

Pressure reducer CO
2
and O
2
, two-stage each (2nd
stage 0-3 bar), if possible with stop valve.

Necessary gas connection downstream of the
pressure reducer: 2 x clamp ring screw connection for
6 mm tube diameter.

The complete gas intake line must use gas-loss-free
components (copper, stainless steel, etc.).
Waste gas lines

The waste gas line "WASTE" must discharge into the
open or into a vent, since otherwise the emitted carrier
gas CO
2
will be enriched in the laboratory.

The end of the waste gas line must discharge into the
open at a location protected from the wind.
Gases and chemicals to be provided
Gases and chemicals to be provided
The following lists the gases and chemicals required.