YZ Systems NJEX 8300G, Manual, Page: 28 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 21 NJEX 8300 ver.092001 ATEX Rev.
SSSSS
ECTION ECTION ECTION ECTION ECTION
4: 4:
4: 4:
4: S S
S S
S
Y YY Y YSTEM STEM STEM STEM STEM
C C
C C
C
ONTR ONTR ONTR ONTR ONTROL OL OL OL OL
& E & E
& E & E
& E
LECTR LECTR LECTR LECTR LECTRONICS ONICS ONICS ONICS ONICS
Test & Standby Keys
The Test key, figure 32, is located in the upper right
quadrant of the N-300G touch pad and is used to
manually stroke the pump. Simply press the test key
touch pad to stroke the pump. Each time the test key is
pushed, the pump should actuate and the N-300G
display will show Strk just above the Test key touch
pad. The strokes signaled counter, located in the display
section of the N-300 will advance for each stroke of the
pump. The odorant injected counter, located in the
display section of the N-300 will also advance when the
pump displaces a sufficient volume of odorant to register
.001 lb (.001 kg) of odorant.
The Standby key,
figure 32, allows the operator to
locally inhibit the operation of the N-300G controller, by
simply pressing this key. This creates a standby mode
for the 8300 system. In the event of a no flow
condition in the pipeline, the operator can switch the
8300 to a standby mode for extended periods of
time, or to temporarily suspend operation of the
system for maintenance. When flow is initiated
once more, or the maintenance has been com-
pleted, the 8300 can be switched from standby to
operation without the need to restart the N-300G
controller, by simply pressing the standby key once
again.
Remote Inhibit Mode, can also be applied to interrupt
odorization in a manner similar to the standby mode;
however, it is initiated by applying a dry contact, or open
collector signal, to the termination board TS2, terminals
#9 and #10 ,
refer to the Wiring Control Document on
page 117 in Appendix D . The Remote Inhibit Mode’s
function is identical to the Standby Mode. Activation will
be indicated on the N-300G display and the Sentry4
event file differently. Rmt Inhb will appear on the N-300
main screen display where the count down time nor-
mally appears,
figure 33.
Figure 32
Figure 33
pmp bat vmtr sig tnk
PropFlow Rmt Inhb
*Stop *Dsp *Set
pmp bat vmtr sig tnk
PropFlow 0:00
*Stop *Dsp *Set