page 8 of 25 GBB-EXKOM-08157/3
Note:
The compressed-air connection must be isolated mechanically from the plant system
to prevent vibrations being transmitted to the QV II Quench Valve. A flexible hose is
recommended.
Only when the operating pressure is reached can the entire system be set to an
"armed" status by the reset button at the EXKOP
®MINI
Safety Controller. (See
section 4. The REMBE
®MINI
Safety Controller).
A pressure gauge arranged at the tank serves for visual monitoring of the available
operating pressure.
The pressure regulator and pressure switch, which settings are set at REMBE
, may
only be altered after consulting with our service department. All warranty claims
against REMBE
®
will become null and void in the event of unauthorized adjustment.
For systems operating under vacuum conditions it is necessary to arm the
EXKOP
®MINI
System before switching on the conveying system to prevent a plugging
or an excessive wear of the QV II Quench Valve.
3.2 Maintenance notes
When conducting maintenance work, the compressed-air supply must not be
interrupted.
Minor leaks at couplings will cause a loss of pressure in the tank. In the event that the
supply of plant air to the pressure tank is interrupted, the tank will maintain a safe level
of air pressure for minimum three hours.
If the supply pressure drops below 4.5 bar, the pressure switch signals a system error
which is automatically evaluated by the EXKOP
®MINI
Safety Controller; this results in
an immediate activation of the QV II Quench Valve and shutdown of the production
line.
Below this supply pressure a reliable closure of the QV II Quench Valve is no longer
ensured! In case of power failure the QV II Quench Valve will close immediately as
well (fail safe).
Note:
Before switching off the power, caution must be taken to ensure that the pinch
area of the QV II Quench Valve is clear in order to avoid injuries to personnel!
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