Instruction manual

RFT9739 Field-Mount Transmitter Instruction Manual

Output Wiring Startup TroubleshootingBefore You Begin Getting Started Mounting

Power-Supply and

Sensor Wiring

6 Startup

6.1 Initialization

After wiring has been connected, power can be supplied to the

transmitter. During initialization, the diagnostic LED on the electronics

module remains on continuously, while the transmitter performs a self-

diagnostic. After initialization is completed, the LED blinks ON once per

second to indicate proper operation of the transmitter.

For DC-powered transmitters

, at startup, the transmitter power source

must provide a minimum of 1.6 ampere of inrush current at a minimum

of 12 volts at the transmitter's power input terminals.

Initialization with display

If the transmitter has a display, during initialization the display will show,

sequentially:

1. All pixels on

2. All pixels off

3. All eights

4. All pixels off

5. Copyright notification

After the self-test is complete, one of ten possible process variable

screens, such as the one depicted below, appears:

If the flowmeter is operating properly, the blinking "Msg" (message)

indicator appears in the bottom right corner of the screen to indicate

power has been cycled.

• To clear the "Msg" indicator, repeatedly rotate the Scroll knob until the

display reads "Sensor OK *POWER / RESET*".

• To clear the message, rotate the Scroll knob.

If the message does not clear, or if error messages appear, refer to

Section 7.4

, page 68, which provides an overview of diagnostic and

error messages.

6.2 Using the optional display

The optional RFT9739 display enables the user to:

• View process variables, flow totals and inventory levels, and status

messages (see page 52)

• Set communication parameters (see page 54)

• Zero the flowmeter (see page 57)

• Reset the transmitter's flow totalizers (see page 60)

Use the Scroll and Reset knobs to operate the display.

INV:

GRAMS:

38450.5

Msg