Memmert IPS Peltier-cooled incubators - Manual (Page 11)

D24034 | Date 10/2014 11
Construction and description
2.2 Description
The appliance can heat the working chamber up to 70 °C (IPP) or 45 °C (IPS) and cool it down
to 0 ºC (IPP) or 14 °C (IPS). Low-noise, long-life and energy-saving Peltier cooling and heating
technology is used for this. In heating operation, a part of the required energy is extracted
from the surroundings (heat pump principle). Condensation formation during the cooling
down process takes place outside the working chamber on the Peltier element
Optionally, the appliance can be equipped with a light module.
2.3 Material
For the outer housing, MEMMERT deploys stainless steel (Mat.No. 1.4016 – ASTM 430) and
for the interior, stainless steel (Mat.No. 1.4301 – ASTM 304) is used, which stands out through
its high stability, optimal hygienic properties and corrosion resistance to many (but not all!)
chemical compounds (caution for example with chlorine compounds).
The chamber load for the appliance must be carefully checked for chemical compatibility with
the materials mentioned. A material resistance table can be requested from the manufacturer.
2.4 Electrical equipment
►
Operating voltage and current consumption: See nameplate
►
Protection class I, i.e. operating insulation with PE conductor in accordance with EN 61010
►
Protection type IP 20 acc. to EN 60 529
►
Interference suppression acc. to EN 55011 class B
►
Appliance fuse: Safety fuse 250 V/15 A, quick-blow
►
The temperature controller is protected with a miniature fuse 100 mA (160 mA at 115 V)
2.5 Connections and interfaces
2.5.1 Electrical connection
This appliance is intended for operation on an electrical power system with a system imped-
ance Z
max
of a maximum of 0.292 ohm at the point of transfer (service line). The operator
max max
must ensure that the appliance is operated only on an electrical power system that meets
these requirements. If necessary, you can ask your local energy supply company what the
system impedance is.
Observe the country-specific regulations when connecting (e.g. in Germany
DIN VDE 0100 with residual current circuit breaker).