CiDRA GVF-100 Gas Volume Fraction Monitoring System - Manual (Page 62)

Copyright © 2006 CiDRA Corporation Page 9-11
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.
G
V
F
------ %
S
O
S
------- 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.