E-M-HG2-S-V1_04
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroGen2 humidity and temperature
generator: Instruction Manual
Instruction Manual
Document Type
Page
24
of 46
Document title
© 2009-2010; Rotronic AG
24
E-M-HG2-S-V1_04
Section 4: Installation, Safety and Transit
4.1 Installation
To ensure correct operation please ensure that:
1)
The unit is level and stable;
2)
There is at least 15 mm clearance underneath and at least 100 mm at the back of the unit to
enable adequate air flow;
3)
Adequate access to the electrical mains connection at the rear of the unit.
4.2 Power Isolation
The unit is supplied with a mains cord set. The mains cord set is the means of disconnection from the
mains supply, it is important that unit is situated so that the electrical mains connection at the rear of
the unit is easily accessible. The unit must be disconnected from the electrical supply before the unit is
moved, cleaned or has water added or removed.
4.3 Earthing
This unit must be earthed. Provision for the safety earth is made for this through the electrical mains
connection (Figure 2, item 8), to which all parts of the unit requiring earthing are internally connected.
An earthed electrical supply is required.
4.4 Earth Leakage Current
Due to RF filtering there is an earth leakage current, within the limits specified in EN 61010-1:2001. This
may affect mains power circuits protected by Residual Current Device (RCD) or Ground Fault Detector
(GFD) type circuit breakers (particularly if used in multiples or with other equipment with an earth
leakage current on the same supply circuit).
4.5 Over Current Protection
To protect the internal circuitry against excess currents, the mains supply to the unit must be connected
with the mains cord set provided with the unit and to an appropriate mains supply.
4.6 Voltage Rating
The unit is designed to work within the limits of a 110-230 VAC 50-60 Hz mains supply with voltage
fluctuations up to ± 10% of the nominal voltage. The unit is rated impulse withstand (over voltage)
category II of IEC 60364-4-443. Where occasional voltage transients over 2.5 kV are expected or
measured, it may be necessary that the power installation to the unit includes a transient limiting
device.
4.7 Conductive Pollution
The unit is rated Pollution Degree 2 and must not be operated in environments where conductive
pollutants (for example carbon) may enter the unit (this includes excessive moisture ingress).
