Fluid Components Intl FLT Series, Инструкция по установке, эксплуатации и обслуживанию

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FLUID COMPONENTS INTL CHAPTER 3 - OPERATION
Fail Safe Alarm Setting
These procedures set the second relay to detect component failure (fail-safe).
Low Flow Alarm Settings
For the low flow fail safe setup the following jumpers are to be installed: J18, J20, J23, J24, J27.
W H E N A L A R M 1 D E T E C T S L O W
F L O W T H E R E I S A P O S S I B L E O P E N
5.0
A C T I V E R T D O R S H O R T E D
4.5
D E - E N E R G I Z E D
R E F E R E N C E R T D
4.0
A L A R M 1 S E T P O I N T
W H E N A L A R M 2 D E T E C T S O V E R
E N E R G I Z E D
3.5
R A N G E F L O W , T H E R E I S A P O S S I B L E
3.0
H E A T E R F A I L U R E ,
SIGNAL
S H O R T E D A C T I V E R T D O R
2.5
O U T P U T
O P E N R E F E R E N C E R T D
2.0
A P O W E R F A I L U R E I S D E T E C T E D I F
1.5
B O T H R E L A Y S A R E D E - E N E R G I Z E D
1.0
E N E R G I Z E D
0.5
A L A R M 2 S E T P O I N T
0
D E - E N E R G I Z E D
0 1 0 2 0 3 0 4 0 5 0 6 0
AIR FLOW RATE
C00534-1
Figure 3-5. Low Flow Fail Safe Alarm
The following information is assumed:
Relay is de-energized in the ALARM condition.
Alarm 1 set point is adjusted for desired low flow alarm velocity or signal.
Alarm 2 set point is adjusted slightly below minimum signal output (over range flow).
High Flow Alarm Settings
For the high flow fail safe setup the following jumpers are to be installed: J18, J20, J23, J25, J26.
D E - E N E R G I Z E D
A L A R M 2 S E T P O I N T
W H E N A L A R M 1 D E T E C T S H I G H
E N E R G I Z E D
F L O W , T H E R E I S A P O S S I B L E
5 . 0
H E A T E R F A I L U R E ,
4 . 5
S H O R T E D A C T I V E R T D O R
O P E N R E F E R E N C E R T D
SIGNAL
4 . 0
OUTPUT
3 . 5
W H E N A L A R M 2 D E T E C T S A N
U N D E R R A N G E F L O W , T H E R E I S A
3 . 0
P O S S I B L E O P E N A C T I V E R T D O R
2 . 5
S H O R T E D R E F E R E N C E R T D
E N E R G I Z E D
2 . 0
A P O W E R F A I L U R E I S D E T E C T E D I F
1 . 5
A L A R M 1 S E T P O I N T
B O T H R E L A Y S A R E D E - E N E R G I Z E D
1 . 0
D E - E N E R G I Z E D
0 . 5
0
0 1 0 2 0 3 0 4 0 5 0 6 0
AIR FLOW RATE
C 0 0 5 3 5 - 1
Figure 3-6. High Flow Fail Safe Alarm
The following information is assumed:
Relay is de-energized in the ALARM condition.
Alarm 1 set point is adjusted for desired high flow alarm velocity or signal.
Alarm 2 set point is adjusted above maximum signal output (under range flow not to exceed 7.0 volts).
FLT
Ô
Series FlexSwitch
Ô
3 - 20 Doc. No. 06EN003246 Rev. B