Sweeping The Area For Electrical Equipment And Triangualr Instriment Box; Condition After Establishing The Power Connection - Binder VDL Series Operating Manual

9.3

Sweeping the area for electrical equipment and triangualr instriment box

Before turning on it is mandatory to sweep the area for electrical equipment with compressed air or inert
gas for at least 15 minutes.
To do so, activate the customer's compressed air or inert gas supply.
Sweeping must take place during the entire operating cycle; otherwise the vacuum drying oven will shut
off at all poles. Also after termination or cancellation of the drying process continue sweeping the area for
electrical equipment for at least 15 minutes.
Explosion hazard by solvent-containing air penetrating and concentration in the
electrical area of the chamber.
Serious injury or death from burns and / or explosion pressure.
 Before turning on the chamber via the key switch (1), sweep the area for electrical
equipment at least 15 minutes with compressed air or inert gas.
 Make sure that sweeping the area for electrical equipment takes place during the entire
operation.
9.4

Condition after establishing the power connection

Only trained personnel with key-authorization may work on the VDL vacuum drying oven.
Prior to establishing the power connection, the following points must certainly be met:
• Installation of the chamber (chap. 6) performed in compliance with the installation guidelines and am-
bient conditions (chap. 5)
• Vacuum supply connected (chap. 6.4)
• If required: Inert gas connection established (chap. 6.5)
• Equipotential bonding established (Chap. 6.6)
• Upon initial commissioning: Test before initial commissioning performed and passed (chap. 7)
• Technical ventilation is activated
• 15 minutes sweeping the area for electrical equipment and the controller housing
Establish the power connection: connect the power plug (chap. 6.7). Connect the power supply only when
needed, and disconnect it when the chamber is not in use for an extended period.
MB2 controller: After establishing power supply the pilot lamp in the instrument panel shows readiness
for operation.
The authorization level is "User". To be able to use the entire functionality of the controller, log in with the
desired authorization level.
All parameters, set-points and settings remain the same as before turning off.
• If the Standby mode had been activated prior to the power failure, the chamber remains off after the
power returns. To operate it you must sign in with a higher authorization level and deactivate the
standby mode.
• If the Standby mode had been deactivated prior to the power failure, operation continues after the
power returns with previously entered parameters. If the pressure reaches or falls below the required
pressure threshold of 100 mbar, the heater turns on depending on the setpoint
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