HF131PEN_v0501_05
Page 39
Fig. 16: Configuration example 2 Intrinsically Safe
TERMINAL CONNECTORS
F100-series
HAZARDOUS AREA
3
4
Common ground
Common ground
Main supply
Power supply type PD: 16-30V DC
Analog output type AP:
passive 4-20mA (output loop powered)
RXD
Common ground
TXD
28
26
29
5
6
Common ground
0
1
2
Ci = 17nF
7
8
91
0
11
Common ground
Signal
Supply *
C
irc
ui
t depen
ds
o
n
ty
pe of
si
gn
al
Flowmeter input
type: P
pulse
Common ground
DTR
+12V
27
e.g. indicator
e.g. PC
e.g. indicator
* Note power supply type PD: the supply voltage to the sensor is maximum 8.7V (Uo=8.7V Io=25mA Po=150mW)
Modbus communication type CT: TTL
Configuration example IIB
-
/IIIC F131-P-AP-CT-OT-(PD)-XI
Please note: power supply type PD is not required - unit is output loop powered - type AP.
Ci is negligibly
small
Logic input:
PAUSE / CLEAR
12
1
4
13
+ 3.2V
low-pass
filter
1M
Ci is negligibly
small
16
15
Logic input:
START
+ 3.2V
low-pass
filter
1M
Ci is negligibly
small
Common ground
Common ground
e.g. relay
Control output type OT:
passive transistor
Ci is negligibly
small
Ci is negligibly
small
e.g. relay or counter
Control output type OT:
passive transistor
e.g. relay
123456
e.g. counter
123456
Note: above values are safety values.
Consult the technical specification for operational values.
SAFE AREA
Isolator
TTL to:
RS232
RS422
TTL
For example:
MTL5051
I.S. Certified
+
-
+
-
Power supply or
switch interface
For example
MTL5525
MTL5511
= max. 30 V
= max. 100 mA
= max. 0.75 W
Uo
Io
Po
+
-
Power supply
and/or repeater
For example
MTL5525
MTL5541
Uo
Io
Po
= max. 30 V
= max. 100 mA
= max. 0.75 W
= max. 30 V
= max. 250 mA
= max. 0.85 W
Uo
Io
Po
+
-
Power supply
For example
MTL5525
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
+
-
Power supply or
switch interface
For example
MTL5525
MTL5511
= max. 30 V
= max. 100 mA
= max. 0.75 W
Uo
Io
Po