Kobold DON -2/4, Operating Instructions Manual

Page: 43 / 65

DON
DON K36/1222 page 43
16.2.3 Wiring examples for electronics options HA/KA/BA/GA with Zener
barriers
Control Drawing for DON-***HA Oval Gear Flowmeter with pulse output
(Reedswitch, usage with zener barrier) for Group IIB zone 1
Hazardous Area
HA
Safe Area
OUT HA/GA
GND
+Vs
OUT DA
Sensor
Ui ≤ 32 Vdc
Ii ≤ 100 mA
Pi ≤ 1 W
Ci = negligible
Li = negligible
GND
Flowmeter
DON-* ** ** ** HA * *
ExGuide 19 ATEX 0007
II 3G Ex ic IIC T4/T3 Gc
zener barrier
Supply
P&F Z728
PA
-20 °C ≤ Ta ≤ 80 °C
Group IIB, zone 1
-20 °C ≤ Ta ≤ 60 °C
1
7
8
2
300R
28V
Supply
Uo = 28 Vdc
Io = 93 mA
Po = 650 mW
max. 26VDC
PA
BAS 01 ATEX 7005
II (1) G [Ex ia Ga] IIC
-20 °C ≤ Ta ≤ 60 °C
ExGuide 19 ATEX 0007
II 2G Ex h IIC T4/T3 Gb
LiYCY
2 x 0,5 mm
2
Lmax = 100 m
C
C ≤ 0,2nF/m
C ≤ 1uH/m
L
simple apparatus
Co = 650nF
Lo = 16,4 mH
IIB
IIB