Bedienungsanleitung SDT43
BDA Serie SDT43 (Stand Jan. 2018)
Seite 54
“
wetted” parts
1.4404 (Other materials on request)
9. Precautions
Check if the specifications of the transmitter meet the needs of the process conditions
When the SDT43 is used as a level transmitter, be aware of the place where the transmitter is mounted.
Here are some suggestions:
o
DO NOT mount a level transmitter in- or near filling or discharging pipes.
o
In case of automatic cleaning systems or hand cleaning: never point the water jets on the diaphragm,
take necessary steps to avoid this. Guarantee will not be granted.
When the SDT43 is used as a pressure transmitter, be aware of the following points:
o
Rapid closing valves in combination with high flow velocity will cause water hammer(spikes) and can
destroy the transmitter. DO NOT mount a transmitter near such valves, always a few pipe bends away
up or down stream (avoid suction).
o
Install a pressure transmitter a few pipe bends away from pumps, as well on the suction or pressure
side of the pump
WELDING INFORMATION:
When using the SDT43 "W" the welding information on page 4 must be followed exactly. This is very
important to prevent distortion of the weld-on nipples.
The diaphragm of the transmitter is protected with a special protection cap. Protect the diaphragm until
installation takes place, to prevent damaging of the diaphragm.
As soon as the wiring is brought inside through the cable gland and connected to the terminal board, make
sure the cable gland is tightly fixed, so that moisture cannot enter into the electronics housing.
Avoid high pressure water-jets pointed at the venting.
If the ambient conditions are very wet, we advise to use a venting through the cable. A special vented cable
can be connected on request. (The normal venting will be removed) In that case the transmitter is IP68.
The covers
①
and
③
must be fully engaged, so that moisture cannot ingress into the electronics housing.
WARRANTY: The warranty is 2 years from delivery date.
Seli GmbH does not accept liability for consequential damage of any kind due to use or misuse of the
SDT43. Warranty will be given, to be decided by the manufacturer. For evaluation and repair the
transmitter must be shipped prepaid to the factory on manufacturers authorization.
NOTE: Seli GmbH reserves the right to change its specifications at any time, without notice. Seli GmbH is
not an expert in the customer’s process (technical field) and therefore does not warrant the suitability of its
product for the application selected by the customer.