Siemens SITRANS FX300, Operating Instructions Manual, Page: 35 / 80

ELECTRICAL CONNECTIONS
4
35
SITRANS FX300
www.siemens.com/flow 06/2009 - SFIDK.PS.050.F2.02 A5E02100423
The pulse output is a passive "open collector" output which is electrically separated from the
current interface and the measuring sensor. It can be configured as a high current output or
NAMUR output using a jumper on the amplifier board.
The maximum frequency of the pulse output is f
max
= 0.5 Hz
The maximum frequency of the pulse output is f
max
= 0.5 Hz
Jumper in NAMUR setting
Jumper in NAMUR setting Jumper in NAMUR setting
Jumper in NAMUR setting
R
i
= 900
Ω
U
max
= 36 VDC
Jumper in high current setting Jumper in high current setting Jumper in high current setting Jumper in high current setting
Open: Maximum voltage U
max
= 36 VDC Closed current I
R
< 1 mA
Closed: Maximum current I
max
= 100 mA Voltage U < 2 VDC
Figure 4-4: Jumper settings pulse output
1
Electronic insert
2
Jumper on board
3
Jumper in high current setting
4
Jumper in NAMUR setting
MA_Siemens_Sitrans_FX300_R02_en_PRT.book Page 35 Monday, June 22, 2009 8:17 AM