Bruker BioSpin BCU-Xtreme, Technical Manual

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Technical Manual Version 001 BRUKER BIOSPIN 7 (13)
Getting Started
Warning : A minimal gas flow (> 1l/min) must always pass through the BCU-
Xtreme, otherwise an error occurs and the compressors will be stopped.
When the temperature control knob is turned completely towards " WARMER "
position, there is still a fraction of the gas flow that passes through the BCU-
Xtreme. However, if the gas flow through the BCU-Xtreme is too low it causes the
shutdown of the compressors. If this happens, turn slightly back the knob
towards position "
COLDER " to increase the gas flow through the BCU-Xtreme.
When the knob is fully in " WARMER " or " COLDER " position do not force or
damage may occur to the gas mixer valves.
Getting Started 1.6
It is recommended to place the temperature knob in the intermediate position
between "
COLDER " and " WARMER " and then start the operation of the BCU-
Xtreme to avoid startup problems (low gas flow).
Wait 20-30 minutes until the cooling power is steady. The outlet temperature can
be changed with the control knob after the initial cooldown phase.
If the BCU-Xtreme is used even after a longer stop, there is no need to readjust
the knob position before restarting the unit.
Technical Specifications 1.7
Table 1.1. Device specification
Dimensions Height : 60 mm
Width : 160 mm
Length : 240 mm
Stainless steel enclosure
Weight 800 grs
Inlet gas flow 10 l/min minimal up to 50 l/min If the inlet gas flow is too low,
the BCU-Xtreme may be shutdown
Gas connections 8 mm and 6 mm Quick coupling type
Inlet gas pressure 5 bar max. Dry air or dry nitrogen gas
Temperature control range -80 °C to 0 °C approx. With BCU-Xtreme (P/N:W1212749)