Electric Connections In The Fm System - Siemens SITRANS SL Operating Instructions Manual
Continuous gas analysis, in situ laser gas analyzers
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Also See for SITRANS SL:
- Safety manual (28 pages) ,
- Operating instructions manual (50 pages) ,
- Compact operating instructions (24 pages)
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Explosion protection
5.2 FM
Figure 5-13
Verification of systems used in hazardous areas (Page 159)
5.2.5
Electric connections in the FM system
The electric connections are done in the receiver and transmitter respectively. The tables
below illustrate the connections in the receiver and the transmitter for the non PROFIBUS
version. The terminals as well as their assignments are described in section Screw terminals
(Page 48).
Sensor connection
The sensor connection connects receiver and the transmitter of the SITRANS SL. The
sensor connection is used to transfer:
● 100 kbps RS-485 communication
● power for the transmitter
● ground.
Table 5- 6
Receiver
L1
L2
L3
L4
L5
L6
Chassis
Gland
84
1/2" NPT
Thread size label SITRANS SL
Electric connections for sensor connection, valid for FM product versions
Screw terminals on junction board
Transmitter
S1
S2
S3
S4
S5
S6
Chassis
Gland
Function / Power
+
24 V DC power supply to transmitter unit
-
Com+
RS 485 communication
Com-
Sync+
Sync-
Ground
Ground
Operating Instructions, 12/2010, A5E01132948-04
SITRANS SL
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