YZ Systems NJEX 7300L, Instructions & Operating Manual, Page: 60 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 50
NJEX 7300L ver.09042003
SSSSS
ECTION ECTION ECTION ECTION ECTION
8: 8:
8: 8:
8: W W
W W
W
ORKING ORKING ORKING ORKING ORKING WITH WITH WITH WITH WITH THE THE THE THE THE
N-300 S N-300 S
N-300 S N-300 S
N-300 S
Y YY Y YSTEM STEM STEM STEM STEM
D D
D D
D
ISPLA ISPLA ISPLA ISPLA ISPLAY YY Y YSSSSS
Or
To View Real-Time Displays,
Continued
Expansion Tank
This display illustrates the expansion tank pressure,
figure 135.
Odorant Inlet
Displays the pressure of the bulk odorant storage tank
via the pressure transmitter located at the fill rate control
valve, figure 136.
Battery Voltage
The battery voltage is shown in this display, figure 137.
• Battery Alarm, a low battery is when the voltage is
less then 11.0 VDC, figure 137a.
Flow Input
This display, figure 138, illustrates the flow rate as a
percentage of the maximum gas flow. The following
represent the alarms that are associated with this area
of the N-300 controller.
Flow Input Alarms
• Loss of Signal, figure 139, the flow signal is less
than .5 VDC, for the analog input only.
• Over Flow, figure 140 the flow input has exceeded
125% of the maximum gas flow.
Flow Input Indicators, non-alarm
• Low Flow, figure 141, the flow input has fallen
below the low flow shut off set point refer to Section
5, Programming for Proportional-to-Flow page 26.
• Over Flow, figure 142, the flow input has exceeded
110% of the maximum gas flow, but is still less than
125% of maximum gas flow.
• No Flow, figure 143, is presently indicated by the
flow signal.
Or
pmp bat vmtr sig tnk
Battery 14.3 VDC
pmp bat vmtr sig tnk
Odorant Inlet
35.3 psig pmp bat vmtr sig tnk
Odorant Inlet
2.434 bar
pmp bat vmtr sig tnk
Expansion Tank
25.2 psig pmp bat vmtr sig tnk
Expansion Tank
1.739 bar
Figure 135
Figure 136
pmp bat vmtr SIG tnk
Flow Input 0.0%
L i n e a r
Loss of Signal
pmp bat vmtr sig tnk
Battery 14.3 VDC
Low Battery
pmp bat vmtr sig tnk
Flow Input 63.1%
Linear pmp bat vmtr sig tnk
Flow Input 0.0%
P u l s e ( P P S )
pmp bat vmtr SIG tnk
Flow Input 125.1%
P u l s e ( P P S )
OverFlow >125%
pmp bat vmtr sig tnk
Flow Input 0.06
P u l s e ( P P S )
Low Flow Shtoff
pmp bat vmtr sig tnk
Flow Input 110.1%
P u l s e ( P P S )
OverFlow >110%
pmp bat vmtr sig tnk
Flow Input 0.0%
P u l s e ( P P S )
No Flow
Figure 137
Figure 137a
Figure 138
Figure 140
Figure 141
Figure 142
Figure 143
Figure 139
pmp bat vmtr SIG tnk
Flow Input 125.1%
L i n e a r
OverFlow >125%
pmp bat vmtr sig tnk
Flow Input 0.06
L i n e a r
Low Flow Shtoff
pmp bat vmtr sig tnk
Flow Input 110.1%
L i n e a r
OverFlow >110%
pmp bat vmtr sig tnk
Flow Input 0.0%
L i n e a r
No Flow