Revision 5
45
August 2021
The handheld keypad should only be connected to the analyzer or disconnected
from the analyzer when the installation location is known to be non-hazardous.
4.3
Analysis 1 Panel
The
Analysis 1
panel shown in Figure 18 shows important current analytical parameter results,
status indicators, and operator controls.
4.3.1 Online/Offline Mode Toggle
The
Online / Offline Mode Toggle
at the top right of the Analysis 1 panel shown in Figure
20 is a button that can be used to toggle between
Online
and
Offline
modes.
Figure 20: Online / Offline Mode Toggle
When this toggle is set to Online, the indicator will be green. In this case, the Control relay
will be in the Auto (green) state, indicating that the analyzer believes the data being output
on the analyzer’s analog outputs to be valid. Prior to performing maintenance or other tasks
that may cause the output data to become invalid, this control should be toggled to the Offline
(red) state by using the FIELD NEXT / FIELD PREV keys to highlight it and then pressing
ENTER to toggle it. When this control is set to Offline mode, it will become red. At the same
time, the Control relay state will change from the Auto state to the Manual (yellow) state,
indicating that the analyzer believes the output data to be invalid. Once maintenance is
complete, this toggle should be set back to the Online state by again highlighting it using the
FIELD NEXT / FIELD PREV buttons and pressing ENTER.
The analyzer’s Online or Offline status does not affect the operation of the analyzer in any
way. Rather, this function has been implemented as a convenience to the operator, as it
provides an easy way for the operator to indicate to the control room that the analyzer is
currently undergoing maintenance or servicing and thus the data being output by the
analyzer is not valid.
When the control is toggled from Offline to Online, the Control relay will change state from
Manual to Auto ONLY if the conditions listed as prerequisite for the Auto state in Table 6
have been met.
4.3.2 Concentration Fields
The
concentration fields shown in Figure 21 are non-editable fields that show the current
value of the concentrations for all analyzed components.
Содержание 943-TGXeNA
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