HF127PEN_EL_TA_v0501_04
Page 38
5.3 CONFIGURATION
EXAMPLES
Fig. 13: Configuration example 1 Intrinsically Safe
TERMINAL CONNECTORS
F100-series
HAZARDOUS AREA
91
0
11
12
1
4
13
19
18
17
Common ground
Common ground
Common ground
Common ground
Signal
Signal
Signal
Signal
Supply *
Main supply
C
irc
ui
t depends
on
ty
pe
of
s
ignal
C
irc
ui
t de
pends
on
ty
pe of
s
ig
nal
Supply *
C
irc
ui
t depen
ds
o
n
ty
pe of
si
gn
al
* Note power supply type PD: the supply voltage is maximum 8.7V (Uo=8.7V Io=25mA Po=150mW)
RXD
Common ground
TXD
28
26
29
0
1
2
7
8
Modbus communication type CT: TTL
Configuration example IIB/IIIC F127-P-AF-CT-EL-PD-TA-XI
DTR
+12V
27
e.g. PC
SAFE AREA
Isolator
TTL to:
RS232
RS422
TTL
For example:
MTL5051
I.S. Certified
+
-
= max. 30 V
= max. 250 mA
= max. 0.85 W
Uo
Io
Po
Ci is negligibly small
Temperature input type TA:
(0)4-20mA
+
-
Power supply
For example
MTL5525
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
Ci = 17nF
Power supply type PD: 16-30V DC
Analog output type AF:
passive floating 4-20mA
e.g. counter
e.g. indicator
e.g. indicator
Due to analog output type AF, the unit has to be powered with
battery type PC or with external power supply type PD.
Note: above values are safety values.
Consult the technical specification for operational values.
+
-
Power supply
and/or repeater
For example
MTL5525
MTL5541
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
+
-
Power supply
For example
MTL5525
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
Ci is negligibly small
Temperature input type TA:
(0)4-20mA
+
-
Power supply
For example
MTL5525
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
+
-
Uo
Io
Po
Flowmeter input
type: P
pulse
Ci is negligibly
small
+
-
Power supply
For example
MTL5525
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
Flowmeter input
type: P
pulse
Ci is negligibly
small
+
-
Power supply
For example
MTL5525
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W