RC Systems ViewSmart 1600+, Руководство по эксплуатации

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UM-1097
Revision B 74
4.14 Markers
Some monitoring devices providing the ViewSmart 1600+ inputs also indicate special modes of operation,
such as
Calibration, Maintenance or Fault,
by transmitting a special <4mA or negative “Marker” value. The
ViewSmart 1600+ offers channel Marker menus for detecting and indicating such events (below). While
active, the ViewSmart 1600+ displays a 6-digit ASCII message to indicate the special event.
If equipped with 10-0348 4-20mA output option, the ViewSmart 1600+ also transmits the same <4mA
value.
4.14.1 Marker Menu
2 0 0
10 0 0
10
C OM1
~
C h . 3 8 D a t a F r o m
Mi n R a w
Ma x R a w
R e mo t e I D
I n t e r f a c e
Ma r k e r Me n u
S r c Wi r e l e s s Mo n i t o r
- 16
I N C A L
Y e s
C h . 3 8 Ma r k e r Me n u
Ma r k e r %
Ma r k a s
S e n s o r L i f e
Ma r k e r E n a b l e d Y e s
Figure 53 Marker Menu
4.14.2 Marker Enabled
Turns the marker feature ON and OFF
4.14.3 Marker %
The negative Marker value is entered into the Marker % field as a negative percent of full scale. For
example, -15.62% of full scale detects a marker value of 1.5mA (1.5mA is -15.62% of full scale when 4-
20mA is the range). Marker mode is active when the input value reads the Marker % +/- 1% of full scale.
4.14.4 Mark As
The Mark As menu allows user entry of the 6-digit ASCII message to be displayed when the marker is
detected.
4.14.5 Sensor Life
Note : This feature is exclusive to R.C. Systems Gas Detectors. Sensor Life should only be activated when
the Marker event is
Calibration,
and when used with an R.C. Systems gas detector, where sensor life value
is transmitted after each calibration.
For Sensor Life to record properly the monitor must perform as follows: After the
Calibration
Marker
interval, 4.0mA transmits for 10 seconds to indicate its
calibration mode
is complete. The monitor then