User’s Manual
Rev1.0
Date:15/07/2015 User’s Manual
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7)
Adjust the direction of the flowmeter: Make sure the derection mark on the probe (Part No.5) is
pointing to the direction as the flow goes. Please reference to the picture below.
8) Open the ball valve, please make sure that procedure 1~7 is operated properly before opening the
ball valve. The sleeve should be connected to the ball valve tightenly that the meter can not be ejected
out.
9) Insert the meter to the depth S as calculated with the hot tap mounting tool. (Please reference to the
manual of hot tap mounting for details).
Now hold the sleeve (Part No.3) with a wrench and tighen
the nut (Part No.4) with another wrench. Make sure the nut sleeve is holding the meter tightenly.
Remark: If flow rate higher than 90Nm/s or pipe size larger than DN400, will require 19mm
diameter probe, mounted in 1” ball valve and 1” socket and 22mm hole
3 Wiring
The terminal board of TGF450 is as picture 3.1 below
Picture 3.1 TGF450 terminal board
On above board, V+ and V- are for power, the DC power should be within 15VDC~32VDC.
is pulse output terminal. A, B are “+” and “-” for RS485Modbus communication, I+ and I- are +
and – for 3-wire or 4-wire 4~20 mA. P+,P- are for pressure transmitter .
