Manual

20639-01 Rev 03

• Communications (C):

Indicates a connection (Ethernet) or activity (Serial). No received

serial messages for 10 seconds will clear the Serial indicator.

• HART Activity (H):

Indicates a recent HART message processed by the transmitter. No

received HART messages for 10 seconds will clear this indicator.

• Write Protect (W):

Indicates configuration changes cannot be made to the transmitter.

Write Protect can be turned on and off via the menu or HART. Default

is OFF.

• Event Log Update (!):

A failure event has been saved in the Event Log, accessible from the

front panel menu. Blank means no change to event log since last

accessed.

• Activity (/-\l):

Indicator will cycle during normal system operation

9.5.1.3 Display Examples

The following figure shows the display when the system is collecting

data to calculate a measurement. The ‘------‘ indicates the system is

unable to make a measurement, or an internal parameter was

changed that has caused the system to re-initialize.

------ %

------- ft/s

GF INITIALIZE MODE GVF /

Figure 53 Initialization Mode

In the following display the system is making a measurement. The

GVF reading is 2.016 % Entrained Air and has a corresponding Speed

Of Sound of 315.7 ft/s. The quality metric applied to the measurement

(SQ) is .72.