Fluid Components International GF90_GF92 - Manual (Page 25)

Doc. No. 06EN003229 Rev. H 21 GF Series Flowmeter Models GF90/GF92
FLUID COMPONENTS INTERNATIONAL LLC http://www.fluidcomponents.com
Use the following steps to install the Hart Option for GF90/GF92:
1. All the FCI transmitters that incorporate the HART protocol are set at the factory to polling address “0”.
Users should reset the polling address to match the needs of their network.
2. At polling address “0”, the GF90/GF92 outputs a current of 4-20 mA; at any other polling address, the
GF90/GF92 outputs a fixed 4 mA current; in compliance with the HART standard. A digital signal is
provided with all polling addresses.
3. If the GF90/GF92 is going to be used as a HART network transmitter, the polling address needs to be
changed to other than “0”.
4. When the GF90/GF92 is connected in a HART Network, the instrument is configured for an external
current source. The polling address must be changed to other than “0”. The power supply feeding the
network must provide sufficient current to support the instruments in the network.
Figure 9. Hart Module
Wiring the Hart Instrument
INPUT POWER - Follow the GF90/GF92 manual to connect power.
OUTPUT SIGNAL - The GF90/GF92 analog outputs are factory connected to the hart modules. The two
diagrams below shows recommended methods of connecting the HART modules to the customer’s system.
FCI recommends using the PC Interface Kit P/N: 014108-02 to connect the flow transmitter to a personal
computer. The kit includes operation instructions and an adaptor for the RJ-12 to serial connection. Connect
one end of the interface kit to the RJ-12 port and the other end to a DB pin connector. Plug the connector
into the COM1 or COM2 port in the back of the computer terminal.
See instructions on how to use the serial communications in the next chapter.
HART
Option
Installation
Figure 56. Wiring of DB-9 Connector