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OLCT 200 User Manual |
46
5.4 Alarm Settings
The
Alarm Settings
page has the
Alarm 1, 2, 3 Setups,
Relays
and
Event Log
submenus shown in Figure 5-6. Alarm 1, Alarm 2 and Alarm 3/Fail menus are identical
and therefore described only once in this section.
IMPORTANT:
Alarm fun
ctions and their associated LED’s are active without the 10-
0234 Relay / Modbus option installed. Alarm conditions are indicated by A1, A2, A3
LCD icons and by flashing the A1, A2 and FAIL led’s. The
Event Log
time and date
stamps significant events such as power applied, alarm trips sensor faults and wireless
INRange / Out of Range conditions. The wireless range icon changes to
after an
Out of Range and subsequent return to InRange event. It may be reset to normal with
the
Reset Range Icon
menu.
A L A R M S E T T I N GS
A l a r m 1
A l a r m 2
A l a r m 3 / F a i l
R e l a y s C o n f i g .
A l a r m E v e n t L o g
A L A R M x S E T U P
S e t P o i n t 2 0
D e a d - B a n d 1%
ON D e l a y 0 s
OF F D e l a y 0 m
L o w T r i p N O
L a t c h i n g N O
Alarm 1, 2, 3 menus
are identical
>
>
>
>
>
R E L A Y C ON F I G
K 1 F a i l s a f e N O
K 2 F a i l s a f e N O
K 2 A c k n o w l e d g e N O
K 2 R e f r e s h Of f
* K 3 a l w a y s F a i l s a f e *
E V E N T L OG
D i s p l a y E v e n t L o g
C l e a r E v e n t L o g
0 8 / 12 / 0 4 0 3 : 17 A 1 I N
0 8 / 12 / 0 4 0 3 : 5 1 A 2 I N
0 8 / 12 / 0 4 0 3 : 5 5 A C K
0 8 / 12 / 0 4 0 4 : 16 A 2 OU T
0 8 / 12 / 0 4 0 4 : 2 3 A 1OU T
0 8 / 12 / 0 4 15 : 0 0 A 1 I N
0 8 / 12 / 0 4 16 : 4 3 A 1OU T
0 8 / 13 / 0 4 0 2 : 0 8 A 3 I N
Edit
0 8 / 13 / 0 4 0 2 : 18 A 3 OU T
- - - E N D OF L OG- - -
Down
Figure 5-6: Alarm Settings Menus
Set Point
enters the engineering unit value where the alarm trips. It may be negative
and trip when monitored values fall out of range in this direction. A3 has a default
negative 5% of range Set Point with Low Trip set for YES. This makes it function as a
FAULT
alarm and trip when the monitored value is more than 5% “out of range”.
Dead-Band
has a minimum value of 1% and a maximum value of 10%. It is useful for
preventing alarm cycling when the monitored value is hovering around the set point.
EXAMPLE: With a range of 0-100 ppm, if Dead-Band equals 5% and the set point is
20 ppm, after tripping at 20 ppm the value must drop below 15 ppm to reset.
ON Delay
allows entering a maximum 10 second delay before this alarm becomes
active. This is useful for preventing nuisance alarms caused by brief spikes beyond
the set point.
OFF Delay
allows entering a maximum 120 minute delay before clearing an alarm after
the alarm condition is gone. This is useful for continuing an alarm function, such as
operation of an exhaust fan, for a period of time after the alarm condition clears.
Low Trip
set to YES causes the alarm to trip as the value falls below the set point.
Summary of Contents for OLCT 200
Page 4: ...OLCT 200 User Manual 4...
Page 14: ...OLCT 200 User Manual 14 Figure 2 3a Outline Drawing OLCT 200 Wired Models...
Page 19: ...OLCT 200 User Manual 19 2 6 2 Installation Drawing 11 0100...
Page 32: ...OLCT 200 User Manual 32...
Page 36: ...OLCT 200 User Manual 36...
Page 38: ...OLCT 200 User Manual 38 Figure 4 1 Calibration Gas Input...
Page 61: ...OLCT 200 User Manual 61 Figure 6 5...
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Page 79: ...OLCT 200 User Manual 79...