S7999B SYSTEM DISPLAY
65-0283—2
46
Flow Monitor
If steam flow is configured in the UDC controller, current
steam flow rate is displayed in text value and in a bar graph on
the page. Upper and lower limits of the steam flow range are
displayed on the page next to the bar graph.
Fig. 92. Steam/Fuel Oil Flow Monitor.
If gas or fuel oil flow is configured in the UDC controller,
current gas/fuel oil flow rate is displayed text value and in a
bar graph on the page. The upper and lower limits of the Gas/
fuel oil flow range are displayed on the page next to the bar
graph.
If totalization is configured in the UDC controller, the user can
select which flow (steam or gas/fuel oil) to accumulate total
units flowed. The user can start, stop, and reset the
totalization count in the UDC controller. The total flow is
displayed on the page. If the UDC controller has been
totalizing prior to displaying this page, the current totalized
value displays on the screen and continues to totalize
automatically. Totalization doesn’t start nor stop automatically
when leaving this page.
Thermal Shock Controller
Current water supply temperature is displayed in text value
and in a temperature bar graph on the page. Upper and lower
limits of the water supply temperature range are displayed
next to the temperature bar graph.
Fig. 93. Thermal Shock Controller.
The control setpoint for optimal water temperature is
displayed on the page. This setpoint is used for PID
modulation of mixing valve/pump and for shock alarm.
The user can adjust the control setpoint on the page. The
status of the shock alarm (when water supply temperature
falls below alarm setpoint) is indicated by an LED that is green
when temperature is below the setpoint and red when
temperature is above the setpoint
Both setpoints can be adjusted by the Up Arrow and Down
Arrow buttons after successfully logging in with the S7999B
System password.
Control of the mixing valve/pump can be manually adjusted by
selecting the yellow “Auto Output” button. The Up Arrow and
Down Arrow buttons are used to adjust the modulation
outputs (override) in 1% (0.16 mA) increments.
