Pr
o
Minent
®
Page 7
Control / Mounting and installation
NOTE
The CALIBRATION key is only released 1 minute after having activated the UV disinfection
system. Thus, the UV C sensor can be calibrated 1 minute after having activated the UV
disinfection system at the earliest.
Calibration
왘
Press the CALIBRATION
for 2 seconds;
the displayed UV C sensor signal starts to flash
왘
Press the ENTER
for 2 seconds within 5 seconds;
the calibration display is shown
---W/m
2
After 2 seconds, the system returns to the standard display. The alarm threshold and the safety
threshold are now newly set. The operating hours counter as well as the counter of the lamp
activations are now reset to zero.
The calibration of the UV C sensor is now complete.
4.4
Connection of the shut-off valve or an operating message unit to
the control
The control is equipped with a switching output to which a shut-off valve or an alarm device can
be connected depending on the configuration.
For drinking water disinfection or similar applications, it is necessary to install an automatic
shut-off valve downstream of the UV disinfection system. This ensures that only sufficiently
disinfected water reaches the consumer.
If a 230V shut-off valve is to be connected to the control, a cable jumper between the terminals
L2 and XR1:1 and the control is required (delivery condition).
The no-load closed shut-off valve is connected to the terminals XR2 and N2 of the control.
As long as the UV C sensor signal exceeds the safety threshold, the cut-off valve is supplied
with supply voltage and the water is transported to the consumer.
For applications which require a switching output instead of a 230V output, the cable jumper
between the terminals L2 and XR1:1 is to be removed.
An operating message unit can now be connected to the terminals XR1:1 and XR1:2 of the
control. As long as the UV C sensor signal drops below the safety threshold or the system is
switched off, the switching contact opens and the interruption is signalled.
4.5
External switching on and off of the UV disinfection system
The UV disinfection system can be switched on and off by switching the power supply.
The system connected to the power supply is to be switched on by pressing the START/STOP
key. Then, the system can be switched on and off by activating or deactivating the power
supply.
5
Mounting and installation
≠≠
Please observe the following notes on safety before installing the system:
WARNING
Ensure that
•
the maximum permissible water flow rate is not exceeded, and
•
the minimum permissible UV transmission is not undershot,
because otherwise no sufficient disinfection is guaranteed!
The maximum permissible water flow rate is described in the enclose datasheet.
It is a function of the required radiation dose as well as of the minimum permissible UV
transmission of the water to be disinfected.
BA_DS_011_02_07_GB.p65
12.02.2007, 12:03 Uhr
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