Testing The Wires; Final Assembly; Mounting The Transmitter - Neptune TRICON E Installation And Maintenance Manual

Testing the Wires

After wiring the transmitter, double-check to ensure it is wired correctly. Apply power to the TRICON
transmitter and check the output signals as follows:
At No Flow – there should be no pulses out of the digital output terminal, and a 4mA direct current
n
should be present in the 4-20mA loop.
At 1/2 Flow – the pulse rate out of the digital output terminal should be
n
a 12mA direct current should be present in the 4-20mA loop.
At Maximum Flow – the pulse rate out of the digital output terminal should be equal to the maximum
n
pulse rate, and a 20mA direct current should be present in the 4-20mA loop.

Final Assembly

Once testing is complete, the transmitter is ready for the final steps of the assembly process.
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Take care not to overtighten the cover screw when securing the terminal cover.
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Mounting the Transmitter

Once the transmitter has been assembled, it is ready to be mounted. If you are installing a TRICON
transmitter on a meter that does not already have a register mounted on it, skip to step 4. If the meter does
have a register mounted, begin at step 1.
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TRICON/E/E2/E3 TRANSMITTER INSTALLATION AND MAINTENANCE GUIDE
Shut off all power to the TRICON.
Place a generous amount of Dow Corning #4 on all exposed wire and terminals.
Fill the inside of the terminal cover with the moisture compound.
Slide the terminal cover in place over the terminal screws.
Fasten the terminal cover with the cover screw and tighten until snug.
Snap the strain relief fitting over the cable and push it into place in the cable entry hole.
Wipe away any excess compound.
Position the small end of the punch on the center of the seal pin at the base of the register.
Using the hammer, drive the punch through the center of the seal pin. The head of the pin
should shear off.
⁄ the maximum pulse rate, and
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