User’s Manual
Rev1.0
Date:15/07/2015 User’s Manual
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3.1 Wiring for terminal board
3.1.1 Wiringfor 3-wire pulse output
TGF450 use a current pulse output with 50% duty ratio. If the pulse reciving instrument require
voltate pulse, please add a resistor between “
” and “V-”, the resistance should be within
500ohms~1000ohms, and power consumption should be no less than 0.5W.
Picture 3.2 Wiring of TGF450 3-wire pulse output
3.1.2 Wiringfor 3-wire HART@4~20mA
V-
B
A
I+ I-
P+ P+
V+
Picture 3.3 Wiring of TGF450 3-wire HART@4~20mA
