Spirax Sarco UTM20 Series - Page 35

IM-P505-02-US Issue 1
35
UTM20 Series Ultrasonic Transit-time Flowmeters
Fig. 38 Typical control out 1, 2 and 3 interface with external pullups passive
ISO_GND ISO_GND
Control Output #1
Control Output #2
Control Output #3
R12
10 Ohms
50 mA max.
Sink
If required
If required
Control Output #1
Control Output #2
Control Output #3
External Equipment
V DC (5 . . . 30V DC)
R-Pullup R-Pullup R-Pullup
Note: Control Output 3available with Energy model only.
ISO_GND
(Acceptable wire sizes: 28 to 12 AWG)
5
6
7
8
9
10