Loading ...
Loading ...
Loading ...
VD (E3.1) 10/2020 page 19/179
2. Description of the equipment
Vacuum drying is used for special drying problems, for which conventional drying methods cannot offer a
solution due to physical limitations.
Controller
The chambers are equipped with a multifunctional microprocessor display controller with 2-channel
technology for temperature and pressure. Temperature is indicated accurate to one-tenth of a degree, the
pressure inside the chamber accurate to one 1 mbar. Pressure is measured by a firmly installed pressure
sensor.
Standard RD4 controller: The chamber is regularly equipped with the RD4 controller. This efficient
chamber controller is equipped with a multitude of operating functions, in addition to recorder and alarm
functions. Set-point entry is easily accomplished directly via the chamber controller and is also possible
directly with a computer via Intranet in connection with the optional APT-COM™ 4 Multi Management
Software (option, chap. 23.1).
Option MB2 controller: The chamber is optionally available with the MB2 display program controller.
This efficient program controller is equipped with a multitude of operating functions, in addition to recorder
and alarm functions. Programming of test cycles is easily accomplished via the modern MB2 touch
screen controller and is also possible directly with a computer via Intranet in connection with the APT-
COM™ 4 Multi Management Software (option, chap. 23.1).
The chamber comes equipped with an Ethernet serial interface for computer communication and with a
USB interface. In addition, the BINDER APT-COM™ 4 Multi Management Software permits networking
up to 100 chambers and connecting them to a PC for controlling and programming, as well as recording
and representing temperature and pressure data. For further options, see chap. 23.
Material
The inner chamber is made of especially corrosion resistant stainless steel V4A (German material no.
1.4404, US equivalent AISI 316L) micro-polished. The rack holder and all of the chamber's vacuum
connections and valves are made of especially corrosion resistant stainless steel V4A (German material
no. 1.4571, US equivalent AISI 316Ti). The housing is RAL 7035 powder-coated. All corners and edges
are also completely coated. When operating the chamber at temperatures above 150 °C / 302 °F, the
impact of the oxygen in the air may cause discoloration of the metallic surfaces (yellowish-brown or blue)
by natural oxidation processes. These colorations are harmless and will in no way impair the function or
quality of the chamber.
The chambers are jacket-heated. The preheating chamber technique ensures a completely
homogeneous jacket temperature, ensuring uniform heat transfer into the inner chamber. The low-loss
heat transfer to the material uses the aluminum vacuum expansion racks (or optionally available in
stainless steel). The elastic-mounted safety glass window reliably compensates any overpressure or
explosions that may occur. The additional laminated safety glass pane ensures proven and effective
splinter protection in the event of an implosion.
The chambers provide a universal connection for inert gas / ambient air and a measuring connection
serving to connect a measuring access port.
All installable items, such as racks and rack holders, can be easily removed. The completely smooth
inner chamber with its rounded corners and internally welded seams is easy to clean.
The minimum working temperature of the vacuum drying oven is approx. 10 °C / 18 °F above room
temperature. The maximum temperature is 220 °C / 428 °F.
Vacuum pumps with a suction capacity of 1 m
3
/h to 30 m
3
/h are suitable for the VD vacuum drying oven.
Loading ...
Loading ...
Loading ...