CiDRA GVF-100 Gas Volume Fraction Monitoring System - Manual (Page 68)

Copyright © 2006 CiDRA Corporation Page 9-17
20639-01 Rev 03
Level 1 Level 2 Level 3 Range Description
Output Sel SOS, GVF, Blank Parameter to output
Power Sel Internal, External
Power supply for 4-
20mA current
Low End Based on ‘output sel’ Low end output (4mA)
High End Based on ‘output sel’ High end output (20mA)
Out of Range
Hold, >20mA, <4mA,
4mA
Behavior when meter
reading is out of range
or meter has no reading
Overrange
Rail
Enable, Disable
‘Enable’ causes the
output to go to full
(20mA) or min (4mA)
when system over
ranges
4mA Trim 2 to 6 Adjust 4mA output
4-20mA
Ch1& Ch2
20mA Trim 18 to 22 Adjust 20mA output
Multiplier 0 - 999999 Multiplier on output
Width (ms) .5,1,20,33,50,100 Pulse width
Lowcut 0 % to 100 % Low end cutoff
Pulse
Output Sel GVF, SOS Parameter to output
Warning Off/On
Activates alarm warning
function
Critical 0 % to 100 % Off/On
Activates alarm critical
function
Alarm
Control
Manual Clear Off/On
Allows for manual or
automatic alarm
clearing
GVF Min Alarm
Warning
Threshold
GVF Max
0-100% of range
Used to set the
minimum and maximum
values for a warning
alarm
GVF Min
Alarm Critical
Threshold
GVF Max
0-100% of range
Used to set the
minimum and maximum
values for a critical
alarm
State Enable, Disable Enable Damping
GVF
Damping
Time
Constant (s) 0-600 seconds; default
is 3 Smoothes output due to
rapid changes in flow
State Enable, Disable Enable noise filtering GVF Noise
Filter
Magnitude Low, High Amount of damping
State Enable, Disable Enable spike filtering
Length 2 - 60 readings
# of measurements to
validate
Output Config
GVF Spike
Filter
Delta 0 – 100 %
% of full measurement
range that will define
the spike size to be
rejected