RIA16
Function and system design
Hauser
7
3
Function and system design
The field indicator is directly looped into the 4 to 20 mA measuring circuit. The energy required is
taken from the loop of the measuring circuit. The device records an analog measured value and
displays it on a clearly legible LC display. In addition, a bargraph displays the measured value
graphically. The illuminated display makes it easier to read the display in dark surroundings.
4
Installation
4.1
Incoming acceptance, transport, storage
The permitted ambient and storage conditions must be observed. The precise specifications can be
found in Section "Technical data".
4.1.1
Incoming acceptance
On receipt of the goods, check the following points:
• Are the packaging or contents damaged?
• Is anything missing from the delivery? Compare the scope of delivery with the information you
specified in the order. See also section 2.2 "Scope of delivery".
4.1.2
Transportation and storage
Note the following points:
• Pack the device so that is protected against impact for storage and transportation. The original
packaging provides optimum protection.
• The permitted storage temperature range is -40 to +80°C (-40 to +176 °F); it is possible to store
the device in the limit temperature ranges for a limited period (maximum 48 hours).
4.2
Installation conditions
The process indicator is designed to be used in the field.
The orientation is determined by the readability of the display. Cable entries are located on the
bottom of the device.
Operational temperature range:
-40 to +80 °C (-40 to +176 °F)
-20 to +80 °C (-4 to +176 °F) when the Open Collector output is used
!
Note!
If the device is operated in the upper temperature limit range, this reduces the operating life of the
indicator.
The display may react slowly at temperatures below -20 °C (-4 °F).
Readability of the display cannot be guaranteed at temperatures below -30 °C (-22 °F).
