ZEISS
10 Technical Data and Conformity | 10.2 Installation Requirements
Electrical Supplies
Parameter
Requirement
Nominal AC volt-
age
208–230 VAC (±10 %), L1/N(L2)/PE
The provided electrical connection must be in accordance with the ap-
plicable electrical codes for the country of installation. In order to
avoid disturbance from other installed machines, ZEISS recommends
using a separate power connection to the main distribution panel.
Protection class
Class I
Nominal frequency
50–60 Hz
Momentary inter-
ruption
Less than a half cycle
System connection
The microscope is delivered with a power cord
3 × AWG10 UL-style (3 m long) and a CEE-connector (Type 32 A-6 h;
200 to 230 V, 2P+PE). Alternatively the microscope can be installed
directly to a switchable power distribution terminal which can be se-
cured against accidental re-activation.
Power consump-
tion
Max. 3.7 kVA, dependent on accessories
Maximum current
16 A
Circuit breaker (at
house installation)
25 A (type K)
Ampere interrupt-
ing capacity (AIC)
Min. 10,000 A rms
Protective ground
High leakage currents are present in the microscope. Therefore, the
microscope has to be connected to an equipotential bonding bar. An
exclusive grounding connection to earth must be provided, i.e. the
grounding terminal must not be common to other electrical equip-
ment. A grounding wire AWG10 is delivered with the microscope.
Cross section
: > 4 mm
2
Ground resistance
: < 0.1 Ω
Cooling Water
Major components of the microscope such as electron-optic lenses, parts of the electronics and
the turbo molecular pump are water-cooled. Any cooling solution has to fulfil the following re-
quirements.
Parameter
Requirement
Water flow rate
60–70 l/h
Pressure
Adjustable up to 3 bar
Water tempera-
ture
20–22 °C
Stability
0.5 °C/10 min
Heat dissipation
1 kW
Connection hose
6 mm inside diameter. Two pieces 10 m each are delivered.
Instruction Manual ZEISS Crossbeam 350 | en-US | Rev. 3 | 349500-8111-000
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