Installation and Operation Manual
X-TMF-MfS-MFC-eng
PN 541-C-061-AAG
November, 2008
MF Smart Series
12
2.7 In-Line Filter
An in-line filter is installed, as standard, in the instrument’s inlet to prevent any
foreign material entering the flow sensor or control valve. The filtering element
should be periodically replaced or ultrasonically cleaned. Apply only clean
gasses on Mass Flow Meter / Controllers.
2.8 Electrical Interfacing (not for Profibus)
The installation of Smart TMF involves connecting to terminal strips. For
details of correct installation, see figure 2-2 and Table 2-2, 2-3 and 2-4.
Table 2-1: Pin configuration
Figure 2-2: Electrical compartment
Table 2-2: Electrical connection 9-pins terminal
PIN NO:
FUNCTION
1
VSUP +
2
SUPCOM
3
NC
4
SIGCOM
5
VSIG
6
ISIG
1
TxD / A+
2
RxD / A-
3
TTLALM
4
VREF
5
VOR
6
NC
7
CMDCOM
8
VCMD
9
ICMD
pin
*
Function
Controller Meter
1
TxD/A+
RS-232/RS-485 TxD/A+
•
•
2
RxD/A-
RS-232/RS-485 RxD/A-
•
•
3
TTLALM
(TTL) Open collector alarm output
•
•
4
VREF
+5 Vdc ref. output
•
•
5
VOR
Valve override input
•
n.a.
•
•
d
e
t
c
e
n
n
o
c
t
o
N
C
N
6
7
CMDCOM Setpoint return (-)
•
n.a.
8
VCMD
0 (1)-5 Vdc Setpoint input (+)
•
n.a.
9
ICMD
0 (4)-20 mA Setpoint input (+)
•
n.a.
*
Abbreviation for the function description can be found under the top cover
Section 2: Installation
