Model S800
13
4.5
Latch/Non-Latch Alarm
Re-setting Latched outputs is accomplished by applying the magnet to the Reset/Test switch
(see Figure 10, sec. 7.2.1 for switch location). Activating the switch, as indicated by “- - “ on
the display, will reset any latched conditions that are no longer valid.
Example
: The sensor detects a gas concentration in excess of an alarm set point (trip
Level). The associated alarm outputs will activate. After a few moments, the gas
concentration drops below the alarm set point. If the alarm outputs are latched, the operator
can activate the switch and the latched alarm outputs will return to their normal (safe) state.
4.6
LED Test Feature
To activate the LED Test, the operator applies the magnet to the Reset/Test switch for five
seconds, and then removes. All of the LEDs and LED segments in the digital will illuminate
for approximately eight seconds.
Ramp Test Feature
To activate the Ramp Test simply apply the magnet to the Reset/Test switch longer than ten
seconds. The digital display will begin ramping up at the start of the test and will continue to
ramp up at a rate of 0.1/ second.
NOTE:
A faster ramp test (10 seconds total test time) may be set by an UCISC service
representative.
As each alarm set-point is exceeded, the ramp-up will pause 1 to 2 seconds then continue
rising until the user deactivates the Reset/Test switch. The digital display will then begin
ramping down, again pausing at each alarm activation set-point.
The ramp test ramps up from the current gas level, and returns to the current gas level. Each
alarm LED will light when the alarm set-point is exceeded.
4.8
Fault Diagnostics
In addition to the Fault LED, the Model S800 provides a fault code on the digital display
whenever a fault condition occurs.
•
F2
– Calibration failed, re-calibrate. If this fault occurs remove the gas, reset the
fault code by actuating the reset/test switch and allow the gas to see clean or zero
air for at least two minutes. Before attempting another calibration, ensure the
following:
•
Proper calibration gas being used
•
Proper gas flow from the bottle
•
Sensor is not blinded
•
Splash guard is not fouled
Содержание S800
Страница 14: ...Model S800 10 Figure 2 Color Coded Wiring Connections ...
Страница 28: ...Model S800 7 4 Module Base Assembly Figure 13 Module Base Assembly 24 ...
Страница 29: ...Model S800 7 5 Power Supply Assembly Figure 14 Power Supply Assembly 25 ...
Страница 30: ...Model S800 7 6 Detector Housing Assembly Figure 15 Detector Housing Assembly 26 ...