HF132PEN_v0501_05
Page 32
5.3.
CONFIGURATION EXAMPLES INTRINSICALLY SAFE APPLICATIONS
Fig. 16: Configuration example 1 Intrinsically Safe.
TERMINAL CONNECTORS
F100-series
HAZARDOUS AREA
3
4
Common ground
RXD
Common ground
TXD
28
26
29
5
6
Common ground
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
DTR
+12V
27
Modbus communication type CT: TTL
Configuration example IIB
-
/IIIC F132-P-CT-OT-PX-XI
Ci is negligibly
small
Ci is negligibly
small
12
1
4
13
+ 3.2V
low-pass
filter
1M
16
15
+ 3.2V
low-pass
filter
1M
Common ground
Common ground
Logic input:
PAUSE / CLEAR
Ci is negligibly
small
Logic input:
START
Ci is negligibly
small
Power supply type PX:
8-30 V DC
7
8
Common ground
Main supply
Control output type OT: passive transistor
e.g. relay
e.g. relay
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
+
-
+
-
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 or
switch interface
For example
MTL5525
MTL5511
= max. 30 V
= max. 100 mA
= max. 0.75 W
Uo
Io
Po
Power supply
For example
MTL5525
RECEIPT PRINTER
+
-
123456
e.g. counter
e.g. counter
123456
Control or pulse output type OT: passive transistor
Ci is negligibly
small
Uo = max. 30V
Io = max. 100mA
Po = max. 750mW
POWER SUPPLY
SWITCH INTERFACE
e.g. MTL5025
or
e.g. MTL5011B
* Note sensor supply voltage: 1.2 V DC for coil sensors or 3.2V DC for other pulse sensors.
