27
VERSION 10/2018
ORDER NUMBER DOC 2339321
.
Service connection
Only for connection to relevant programming devices and only outside the potentially
explosive area, or if an atmosphere not capable of explosion is present.
5.5.2.1 IDENTIFICATION X
1. The notices in the operating manual must be observed, particularly regarding
grounding and connecting the potential equalization, and integrating the equipment
into an existing system for potential equalization.
2. Opening the housing in environments with explosive gas atmospheres is not permitted.
3. Plugging in the service connector in explosive environments is not permitted, and
may only be carried out by authorized maintenance personnel.
4. Maintenance and service tasks inside the housing may only be performed by
authorized personnel.
5. No changes at the pressure regulator (inside the housing of the TwinControl controller)
for the turbine or at the relief valves may be made.
6. A maintenance plan must be prepared for the controller (type TwinControl), or this
controller must be integrated into an existing maintenance plan.
7. In order to prevent soiling inside the housing of the TwinControl controller, the
integrity of the front film must be checked at regular intervals. In the event of damage,
the equipment must be removed from the Ex zone immediately and put out of
operation, and repaired by WAGNER.
8. When designing and installing the compressed air system, it must be ensured that no
explosive atmosphere can arise within the system.
9. Only WAGNER potentiometers may be connected to the potentiometer connections.
10. The remote control may only be used in an environment at risk of explosion if used
along with a system with a turbine. The remote control cable must be laid securely
and safely protected from damage. The maximum permitted cable length is 75 m;
246 ft.
11. If the complete TwinControl system is operated as part of a water varnish coating
system connected to high voltage, the green-yellow ground cables must be removed
and replaced with black cables with the same cross-section. Grounding symbols must
be made unrecognizable.
12. The device does not comply with Chap. 6.3.12 of DIN EN 60079-11: 2007-08.
13. The device is suitable for overvoltage category II and may only be operated if all
connections are inserted or provided with protective caps. Degree of pollution 3 for
the environment is then permissible.
Permissible storage temperature: -20 °C; -4 °F ... +60 °C; +140 °F.
Relative humidity (no dew) < 95%.
14. The 2A switchbox may only be used in an environment at risk of explosion if used
along with a system with a turbine.
