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Exemplary circuit plug-in module DTM-3 - connection to a building management system
®
SmartBox
1 / 2 / 3
Oiltank
Level probe
Exemplary circuit inlet module
Use of an active analogue card
During start-up, a signal of approx. 3mA is generated at the beginning. After approx. 1 minute,
the proper signal is generated in accordance with the current level. If the tank is empty, 4.0mA
are generated.
If a value of 20mA is generated, despite the level displayed being 0L, no tank volume has
been entered on the SmartBox
volume, the signal is updated to the proper value after approx. 1 minute.
TECHNICAL DATA
Input signal
Output signal
Supply voltage U
B
Load resistance R
Transmission error
Ambient temperature
6 / 8
plug-in module
Use of an analogue card with passive inlet
®
(see SmartBox
Serial data telegraphs according to PC set protocol
4 – 20 mA
9 - 24 V DC
max.
(U
- 8 V) / 20 mA
B
B
< 0.5% of the final value
0°C to + 45°C
Regler- und Armaturen-Gesellschaft mbH & Co. KG
Obernbreiter Straße 2-18 • 97340 Marktbreit / Germany
Tel.: +49 9332 404-0 • Fax: +49 9332 404-43
E-Mail: info@gok-online.de • www.gok-online.de • www.gok-blog.de
Building management system
input modules
Analysis, Control, Remote indication
®
instructions). After having entered the tank
e.g. max.
Plug-in module DTM-3
output modules
800 Ω pour U
=24 V
B
200 Ω pour U
=12 V
B
part no. 28 853 50 a
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