KROHNE OPTISYS TUR 1050 EN - Manual (Page 27)

OPERATION
5
27
OPTISYS TUR 1050
www.krohne.com 11/2012 - 4002444301 MA OPTISYS TUR 1050 R02 en
5.1 Start-up
Before start-up assure the following adjustments:
• The drain vent is open for gravity-feed and open-drain systems. In pressurised systems it has
to be plugged with a seal screw (the manufacturer ships the device with the seal screw in the
drain vent).
• The back pressure valve is completely open.
• The hose connected with drain connection of the device leads to a suitable drain site.
• For continuous measurement the intake hose has to supply the sensor with a dependable
sample flow.
Start-up procedure
• Check that the circuit breaker is not in a position where it de-energises the device.
• Switch on the power supply.
• Wait until the device has completed its warm-up (1 hour during the initial start-up and
typically 45 minutes during all following start-ups), at the same time the fully automatic
drying process takes place.
i After the warm-up the display shows the measured turbidity, if a continuous process
stream is flowing through the cuvette; refer to
Normal operation on page 28. In addition,
the equivalent signal is provided on the analog 4...20 mA output or the digital RS 485 output,
depending on the options selected.
CAUTION!
Installation, assembly, start-up and maintenance may only be performed by appropriately
trained personnel. The regional occupational health and safety directives must always be
observed.