YZ Systems NJEX 8300G, Manual, Page: 33 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5693 • F: 936.788.5720
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NJEX 8300 ver .092001 ATEX Rev.
SSSSS
ECTION ECTION ECTION ECTION ECTION
5: 5:
5: 5:
5: P P
P P
P
R RR R ROGRAMMING OGRAMMING OGRAMMING OGRAMMING OGRAMMING FOR FOR FOR FOR FOR
P P
P P
P
R RR R ROPOR OPOR OPOR OPOR OPORTION TION TION TION TIONAL AL AL AL AL
-----
TTTTTO O O O O
-F -F
-F -F
-F
LLLLLO O O O OW W W W W
O O
O O
O
PERA PERA PERA PERA PERATION TION TION TION TION
Setting Operator Input Parameters,
Continued
Max gas flow in MMCF/Hour (m3/sec)
Max gas flow is the maximum flow rate at which the
flow input reaches full scale span.
To set the max gas flow,
figure 44,
press and release
the Select key. The value entry will begin to flash when
selected. Use the Up Arrow key to increase the value
and the Down Arrow key to decrease the value. When
a new value has been chosen, press the Enter key to
store the new value into memory. The entered value will
stop flashing when it has been loaded into the memory.
Press the
Down Arrow key to advance to the next
parameter.
The low flow shut off setting, allows a preset point in
a percentage of max gas flow desired to the N-300G to
stop injecting odorant. This allows the controller to
sense low flow conditions where the operation is not
desired. This setting will override the max time /stroke
setting parameter. When flow again increases above
the preset point the N-300G resumes operation.
To set the low flow shut off,
figure 45,
press and
release the Select key. The value entry will begin to
flash when selected. Use the Up Arrow key to increase
the value and the Down Arrow key to decrease the
value. When a new value has been chosen, press the
Enter key to store the new value into memory. The
entered value will stop flashing when it has been loaded
into the memory. Press the
Down Arrow key to
advance to the next parameter.
The flow
(no signal) input setting
, is the predeter-
mined percentage of max gas flow that the operator
would like the controller to default to in the event that the
actual flow input signal is lost.
Note: the Flow (no signal) input functions will only be
active with analog input signals 1-5 VDC and 4-20 mA.
To set the flow (no signal) input , figure 46, press and
release the Select key. The value entry will begin to
flash when selected. Use the Up Arrow key to increase
the value and the Down Arrow key to decrease the
Or
pmp bat vmtr sig tnk
Maximum Gas Flow
5.000 MMCF/hr
pmp bat vmtr sig tnk
Maximum Gas Flow
15.00 m
3/
sec
Select
Enter
pmp bat vmtr sig tnk
Low Flow Shutoff
2.0% Max Gas Flow
Select
Enter
Figure 44
Figure 45
pmp bat vmtr sig tnk
Flow (No Signal)
20.0% Max Gas Flow
Select
Enter
Figure 46