Technical Specifications; Power; Inputs - Siemens SITRANS F Series Operating Instructions Manual

Technical specifications

Note
Device specifications
Siemens makes every attempt to ensure the accuracy of these specifications but reserves the
right to change them at any time.
12.1

Power

Table 12-1
Description
Supply voltage
(double insulation or reinforced insulation)
Power consumption
Reverse polarity protection (y / n)
Galvanic isolation
Only use FST090 power adapter (7ME3940-3P...-....) as external power source
1)
12.2

Inputs

Table 12-2
Description
Load
Functionality
Table 12-3
Description
Load
Functionality
SITRANS FST090
Operating Instructions, 11/2021, A5E50387341-AA
Power supply
1)
Digital input
Channel 7
15 to 30 V DC, R
• Reset totalizer
Digital input
Channel 8
15 to 30 V DC, R
• Start/Stop totalizer
Specification
• Lithium-ion battery 14.4 V DC
• External adaptor
100 - 240 V AC
(Output voltage range: 20-28 V DC)
DC = 10 W
Y
3000 V AC
7 kOhm
in
7 kOhm
in
12
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