Installating The Transducer In Areas With High Ambient Temperature - ABB Sensyflow iG Operating Manual

Fig. 4-1 Adaption by using a weld-on adapter
Note Deviations from the stated dimension and position tolerances cause additional measuring uncertainty.

4.2 Installating the transducer in areas with high ambient temperature

The permissible ambient temperatures for the electronic components are between -25 and +65 °C for de-
vice versions without display. Versions with display can only be used up to an ambient temperature of
max. +50 °C. In case of high temperatures of the medium, sufficient thermal isolation of the measuring
lead must be provided in order to prevent the temperature at the electronics unit to exceed the permissible
ambient temperature.
Usually there are no problems for devices of the remote version, as the electronics unit can normally be
mounted at a sufficient distance to the hot pipelines.
If a compact version device must be mounted directly to a hot pipeline, the lateral installation is recom-
mended. In such cases you should avoid mounting the device in 12 o'clock position, since otherwise the
rising warm air causes additional heating up of the electronic circuitry.
Fig. 4-2 Recommended mounting of the device in case
42/14-39 EN Sensyflow iG, Version 1.00
(1) Centering pin
on outlet run side
of hot pipelines, display rotated by 90°
O-Ring Nut
(1)
∅ d
min. 28 mm
Durchflussrichtung Z-189341
Fig. 4-3 Sensor mounting in 12 o'clock position for uncri-
tical ambient temperatures
Mechanical installation
Weld-on adapter
(upon delivery)
Anschlussflansch DN 25
(1)
∅ 33,7
Z-189342
Required accuracy of mounting
Centric mounting < ±2 mm
Twist < ± 2°
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