YZ Systems NJEX 610G Parts list manual

NJEX 610G
NATURAL GAS ODORIZATION SYSTEM

NJEX 610G
INSTRUCTION & OPERATING MANUAL
Version: 07-2018

SECTION 1: FIRST THINGS TO KNOW ABOUT THE 610G ..............................................................1
How to Use this Manual..........................................................................................................................1
Operation Specications.........................................................................................................................2
Theory of Operation................................................................................................................................2
System Accessories...............................................................................................................................3
SECTION 2: SYSTEM INSTALLATION................................................................................................4
Standard System Components..............................................................................................................4
System Flow Schematic.........................................................................................................................5
Standard System Mounting....................................................................................................................6
Standard System Connections...............................................................................................................7
SECTION 3: FILLING THE BULK ODORANT TANK...........................................................................8
Filling the Tank for the First Time............................................................................................................8
Relling the Bulk Odorant Tank..............................................................................................................9
SECTION 4: SYSTEM CONTROL & ELECTRONICS.........................................................................10
Overview...............................................................................................................................................10
SECTION 5: PROGRAMMING FOR PROPORTIONAL-TO-FLOW OPERATION..............................11
Setting Operator Input Parameters........................................................................................................11
SECTION 6: PROGRAMMING FOR PROPORTIONAL-TO-TIME OPERATION................................13
Setting Operator Input Parameters........................................................................................................13
SECTION 7: MECHANICAL SYSTEM.................................................................................................14
Overview...............................................................................................................................................14
NJEX Gas Filter.....................................................................................................................................15
Model 6000 pump and Actuation Gas Manifold.....................................................................................16
SECTION 8: SYSTEM MAINTENANCE...............................................................................................17
Preventative Maintenance Schedule.....................................................................................................17
Recommended Spare Parts List...........................................................................................................17
SECTION 9: 610G SYSTEM TROUBLESHOOTING...........................................................................18
How to Use This Section.......................................................................................................................18
Battery Test:..........................................................................................................................................19
Troubleshooting: Proportional-To-Time Mode......................................................................................20
Troubleshooting: Proportional-To-Flow Mode.......................................................................................22
Troubleshooting: Pump Performance...................................................................................................23
APPENDIX A: ILLUSTRATIONS..........................................................................................................25
NJEX Model 6000 Pump Assembled....................................................................................................25
NJEX Model 6000 Pump Actuation Assembly, Exploded View.............................................................26
NJEX Model 6000 Pump Check Valve Assemblies, and Seals, Exploded View..................................27
NJEX Gas Filter.....................................................................................................................................28
Controller(exploded).............................................................................................................................29
Wiring Control Document......................................................................................................................30
610 Table of Contents
Page i

SECTION 1: First Things to Know About the 610G
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018 Page 1
How to Use this Manual
The NJEX-610G Operations Manual is a step-
by- step guide containing the procedures
needed to work with the 610G System.
The NJEX System Series of odorizers
implement the most advanced technology
available in the industry. It is recommended
that the technicians working with the NJEX
Odorization Systems study the manual prior to
initiating work on the system for the rst time.
Typographic Conventions
To aid in readability, this manual uses several
typographic conventions. References to
illustrations, photographs, and other related
content will appear in italicized text along
with the location of where to nd the item in
the manual. Digital versions of the manual,
available in Adobe Acrobat™ PDF format,
will be highlighted further in blue italic text
indicating the copy retains a hyperlink to the
referenced item.
Measurement units are listed in italic
parenthesis text following their US standard
equivalent. As an example, for dening a
distance, 15’ (4.5 meters), is how the text will
appear throughout the manual.
Items that require action, for example the
pressing of a key for programming the
controller, will feature the action item in
sentence case Bold Text followed in normal
text by the item such as, the Test key or Power
switch.
Starting with Section 4, System Control & Elec-
tronics, the manual will begin discussing the
in-depth operation of the electronic controller
where many of these typographic conventions
will be found. In the discussion about the con-
troller, the technician will learn about the mul-
tiple switches used to program the controller for
operation. Further discussion on the functions
of the controller will take place in Section 4,
System Control and Electronics, on page 10.
Getting Help
This manual provides solutions to typical
questions about the 610G system. If the
answer can not be found within this manual,
contact YZ Systems at:
T: 281.362.6500
T: 800.653.9435
E: T[email protected]
When calling, have this manual close at hand.
Whether calling or writing, please include in
your communiqué the following information:
• The serial number of the NJEX System
and the version number of this manual.
The serial number is located on the inside
of the enclosure door just below the
system ow diagram. The version number
of this manual is located at the bottom of
each page.
• A description of the problem and, if when
the problem occurred.

SECTION 1: First Things to Know About the 610G
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 2
Operation Specications
Maximum recommend odorant output:
.05 gallons/day
(200 cc/day)
Maximum operating pressure:
1,440 psig
(99.28 Bar (g))
Operating temperature range:
0 to 140 ºF
(17°C to 60°C)
Power supply:
LBP-14 Battery
Gas ow input signal:
Pulse (Dry contact or voltage pulse)
Theory of Operation
Proportional-To-Time Operation: In this mode
of operation, the 610G injects odorant into the
pipeline at regular time intervals. The volume in-
jected per stroke is set by inserting a stroke spac-
er into the actuation plug of the 6000B pump.
The Z-65 controller operates as a recycling timer,
periodically energizing a low power solenoid
valve. Energizing the solenoid valve allows ac-
tuation gas to stroke the 6000B pump. The rate
at which this occurs is set by the operator using
two 10-position switches on the controller. The
number of times the solenoid output is activated
is recorded by the onboard LCD indicator.
Proportional-To-Flow Operation: In this mode
of operation, the controller operates as a divid-
ing counter. The counter periodically energizes
a low power solenoid valve. The rate at which
this occurs is a function of operator input as well
as the host computer or other device that inputs
pulses per volume metered. The volume injected
per stroke is set by inserting a stroke spacer into
the actuation plug of the 6000B pump. The two
10-position switches are used to set the number
of pulses the counter will count before activat-
ing the solenoid output. The number of times the
solenoid output is activated is recorded by the
onboard LCD stroke indicator.
Power Options:
Long-Life Battery: The controller timer/counter
operates using a replaceable internal battery
pack. As the standard power source, the bat-
tery pack condition is monitored by way of two
indicator LEDs. When the battery pack needs
replacement, the red LED will illuminate when the
solenoid output is activated. If the battery pack
is good, the green LED will illuminate when the
solenoid is activated. Typical battery life is one
year based on a two minute/stroke rate.

SECTION 1: First Things to Know About the 610G
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018 Page 3
System Accessories
• Odorant Injection Probe, includes a 316
stainless steel probe and isolation valve for lo-
cation at the pipeline. When ordering, please
specify pipeline connection required, ½″ or
¾″.
• Odorant Injection Probe with Sightglass,
(P/N A1-0238) 1/8” drop adapter includes a
316 stainless steel probe, visual odorant sight
indicator, and an isolation valve for location at
the pipeline. When ordering, please specify
pipeline connection required, ½″ or ¾″.
• 1/8″ stainless steel discharge tubing In-
line Check Valve. For placement in the odor-
ant discharged tubing line immediately pre-
ceding the probe assembly, (P/N A3-0438).
• ¼″ stainless steel tubing Dielectric Isola-
tor Union. These should be installed in every
tubing line that attaches the odorizer to the
pipeline in any manner. For example the sup-
ply gas, odorant discharge, and differential
pressure switch connections, (P/N A1-0182).
• NJEX Scrubbers. These lters are designed
to scrub the exhaust gas vented from the
pumps. They are available by ordering P/N
C4-0018, 15 gallon scrubber.
A complete line of odorization accessories
ranging from pre-odorized gas scrubbers to
injection probes is available through YZ. Please
contact your local representative or YZ toll free
at 800.344.5399. For technical support call
800.653.9435.
Application Notes
• When installed and operated properly we can
consistently perform at the smallest pump
displacement of 0.02cc/stroke with as much
as 30 minutes between strokes; therefore time
intervals will be approved between 6 sec. and
30 minutes.
• Keep in mind that with the LVO there is no
internal microprocessor to do calculations, or
make adjustments; therefore, the LVO must
be operated in Proportional to Time mode
(0.1 min., to 30 min.), or in the Flow mode as
a slave to counting “XX” number of pulses.
The pulses cannot come faster than 1.5 Hz or
approximately 670 ms between pulses, and
each pulse must have a minimum dwell time
of 21 ms, and you cannot count more than 99
pulses before stroking the pump.
• Finally remember the battery life on the
LVO will be limited by stroke frequency and
temperatures. The faster it runs and the
colder it gets, the shorter the battery life will
be.

SECTION 2: System Installation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 4 NJEX 610G 7-2018
Standard System Components
Standard primary components of the NJEX-610G
include the following:
A. System Odorant Tank. The odorant tank
is tested and pre-assembled with a valve
package including a visual level monitor.
B. System Controller. Controller with internal
battery assembly.
C. Odorant Injection Pump. The NJEX 6000 is a
pneumatically actuated, positive displacement
plunger pump.
D. System Enclosure. Houses the Model 6000B
pump, the Z-65 Controller, the actuation gas
manifold and the odorant discharge manifold.
E. NJEX Gas Filter. Installed between the
actuation gas regulator and the actuation
gas manifold, this lter provides a 25
micron coalescent ltration to insure a clean
pneumatic supply.
A
B
C
D
E
Figure 1

SECTION 2: System Installation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018 Page 5
System Flow Schematic

 





 
Figure 2

SECTION 2: System Installation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 6 NJEX 610G 7-2018
Standard System Mounting
1. Securely attach a section of 2″ pipe in a
vertical conguration at the location where
the NJEX 610G is to be installed. Using the
mounting clamps provided with the NJEX
610G System, attach the system to the pipe.
2. Connect a ground wire from the 2″ pipe to a
properly installed ground rod, located adja-
cent to the pipe.
Figure 3

SECTION 2: System Installation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018 Page 7
CAUTION:
Excessive tubing lengths should be avoided.
Installation of the NJEX Odorization system
should be as close to the point of injection and
Odorant Storage Tank as possible. Maximum
tubing length should not exceed 15’ (4.5 meters)
with the tubing size maintained as indicated in
this manual. If longer tubing lengths are required
consult YZ Systems Technical Services at
800.653.9435 or 1.281.362.6500
Standard System Connections
Required eld connections to place the 610G into
operation are as follows:
1. Connect the regulated actuation gas source
(50-60 psi, 3.45-4.15 Bar, by customer) to the
NJEX gas lter inlet.
NOTE: At temperatures below 32ºF (0°C), con-
ditioning of the actuation gas supply may be
required. Where the actuation gas supply has a
high water content and/or a low hydrocarbon dew
point, additional actuation gas ltration or heating
of the actuation gas supply may be necessary.
Bottled nitrogen can also be used during cold
operating conditions to avoid condensation in the
actuation gas supply line. In addition, operation
at extreme temperatures will affect seal and o-
ring performance. To prolong the service of seals
and o-rings, adequate heat should be provided to
maintain an operating environment above 32ºF
(0°C).
2. Connect the pump discharge valve tting to
the pipeline connection.
3. Connect the ow signal device to the
termination strip located in the system control
enclosure (see Wiring Control Document,
page 32).
Installation Guidelines
• We recommend that the tubing from the
610 LVO be adapted to 1/8” tubing before it
reaches the sight glass.
• A 50 lb. in-line check valve should be located
just before the sight glass. (1/8” in-line C.V.
P/N A3-0438)
• The sight glass should be tted with a 1/4”
MNPT x 1/8”t bore through tting (P/N A1-
0283) and 1/8” S.S. tubing extending through
the bore of the sight glass tting until it just
protrudes from the 1/4” dripper point.
Figure 4

SECTION 3: Filling the Bulk Odorant Tank
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 8
Filling the Tank for the First Time
CAUTION:
Odorant has a very strong odor, which if allowed to
escape to the atmosphere, may cause problems in
the local community. Take necessary precautions
when lling an odorant storage tank to assure that
the local community is not disrupted during the
lling process. Verify that the entire system has
no pressure in it before beginning. Additionally,
all personnel should wear protective clothing, and
use equipment as recommended by the chemical
manufacturer during this time. If you are uncertain
about any aspect of the odorant itself, you should
contact the manufacturer of your chemical prior to
proceeding. The MAXIMUM amount of odorant
in the standard tank should never exceed 4
gallons.
1. Verify correct position of valves before
beginning, Figure 5.
• Closed: V10, V11, and V13
2. Attach inert or natural gas supply to V10.
3. To purge the tank open valve V10 to introduce
inert or natural gas to the tank to begin
displacing any ambient air from the empty tank.
Continue until pressure on the gage located
directly below V10 is observed, then partially
open V11 to allow ambient air from the tank
to begin owing out. Allow this process to
continue until all ambient air from the tank is
purged, and only inert gas or natural gas is
emitting from this valve, then close V11 and
V10. The time required to accomplish this
task will vary with the tank size.
4. Vent purge gas by opening V11 partially until
tank pressure just reaches zero, and then
close V11.
5. Attach odorant supply to V10, open V10, and
begin transferring odorant to the bulk tank.
• The tank level indicator will not start
to rise until approximately 1 gallon of
odorant is in the tank
• When 2 gallons of odorant is in the tank
the tank level should show approximately
1.5” on the level indicator tape.
• 3 gallons should show approximately 3”
on the level indicator tape.
• 4 gallons should show approximately 4.5”
on the level indicator tape.
6. Connect a line from V11 to a are or vapor
recovery device, and open V11.
CAUTION:
Fill tank to a maximum level of 80% of the tank
capacity (4 gallons).
7. Close V10 and V11, and remove odorant
transfer equipment, and line to are or vapor
recovery device.
8. Continue through the remaining procedures
in this manual.
LEGEND
Figure 5

SECTION 3: Filling The Bulk Odorant Tank
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 9
Relling the Bulk Odorant Tank
CAUTION:
Odorant has a very strong odor, which if allowed to
escape to the atmosphere, may cause problems in
the local community. Take necessary precautions
when lling an odorant storage tank to assure that
the local community is not disrupted during the
lling process. Verify that the entire system has
no pressure in it before beginning. Additionally all
personnel should wear protective clothing, and
use equipment as recommended by the chemical
manufacturer during this time. If you are uncertain
about any aspect of the odorant itself, you should
contact the manufacturer of your chemical prior to
proceeding.
1. Place the Z-65 controller in the OFF Mode by
placing Mode Switch #1 in the Down position.
2. Verify correct position of valves before
beginning, Figure 6.
• Close: V10, V11, V13
3. Connect a line from V11 to a are or vapor
recovery device, and open V11.
4. Attach odorant supply to V10, open V10, and
begin transferring odorant to the bulk tank.
CAUTION:
Fill tank to a maximum level of 80% of the tank
capacity (4-gallons total or about 4.5 inches on the
level indicator tape).
• When 2-gallons of odorant is in the tank the
tank level should show approximately 1.5” on
the level indicator tape.
• 3-gallons should show approximately 3” on the
level indicator tape.
• 4-gallons should show approximately 4.5” on
the level indicator tape.
5. Close V10 and V11, and remove odorant
transfer equipment, and line to are or vapor
recovery device.
6. Open V13 until the storage tank pressure is 15
psig.
7. Place the Z-65 controller in the ON Mode by
placing Mode Switch #1 in the Up position.
LEGEND
Figure 6

SECTION 4: System Control & Electronics
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 10
Overview
The electronic control package provided with
your 610G odorizing system consists of a
solid state Z-65 Controller and a Low Powered
Solenoid powered by an internal battery. The
Z-65 energizes the solenoid which in turn sends
a pneumatic actuation signal to the Sample
Pump, every time a sample is required either
Proportional-To-Flow, or Time.
SAFETY NOTES
Always use extreme care when performing
maintenance on Sampling Systems. Always take
necessary measures to assure that electrical
classication in the area is considered, before,
and during all repairs, and that necessary
steps are taken to maintain proper electrical
procedures for the classication of the area.
The control package requires you to congure
the Z-65 controller to operate in a Proportional-
To-Flow mode, refer Section 5, to page 11, or a
Proportional-To-Time mode refer Section 6, page
13. All wiring connected to the Z-65 controller
must be done in accordance with the Wiring
Control Document, refer to Appendix A, page
30. NJEX 610G electronics are rated for use in
Class I, Division 1, Groups C and D hazardous
locations.


 

Mode Switch
Z-65/3.10 Controller
Figure 7
Z-65 Controller
Mode Switch

SECTION 5: Programming for Proportional-to-Flow Operation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 11
Setting Operator Input Values
In this mode of operation, the Z-65 controller is
used as a dividing counter to control the rate at
which the pump is actuated. The desired time
between pump strokes is controlled by the host
computer or output device that will give an input
pulse to the Z-65 controller.
1. Determine if the incoming input is either a,
dry contact or voltage pulse.
2. If the input is a dry contact:
a. Terminate the incoming connections to the
Z-65 terminal strip (see illustration).
b. Turn mode switches 1, 3 to ON and 2, 4 to
OFF.
OR
3. If the input is a voltage pulse:
a. Terminate the incoming connections to the
Z-65 terminal strip (see illustration).
b. Turn mode switches 1, 3, 4 to ON and switch
2 to OFF.
Figure 8
Figure 9
5-24 VDC
(Voltage pulse)
(20 msec
duration min.)
Dry contact or
open collector
(20 msec
duration min.)

SECTION 5: Programming for Proportional-to-Flow Operation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 12
4. Calculate the counter setting using the following chart:
5. Adjust the pump volume adjustment knob to the value used in the calculation in step 4.
Sample pump displacement per stroke Number of turns open on the pump volume
knob
.1cc 3
.2cc 6
.4cc 12
6. Turn the counter dials to the appropriate number of pulses you want to count before the
sample pump strokes.
7. Press the test button once to load the value
into the memory.
NOTE: If the calculated counter setting is less
than 1 or greater than 99, the pulses per volume
metered will need to be adjusted. This can be
programmed in most ow meters to the desired
rate. If the calculated counter setting is less than
1, increase the pulses per volume metered. If
the calculated counter setting is greater than 99,
decrease the pulses per volume metered.
1. Your pump displacement (from .1 to .4cc’s) = a.
2. Your sample cylinder volume in cc’s (300cc, 500cc, etc.) = b.
3. Average ow rate (MMCF per day or MCM per day) = c.
4. Sample period in days = d.
5. Pulses/volume metered (pulses/MMCF or pulses/MCM) = e.
6. Counter setting = a x c x d x e
(b)
Example #1: Example #2
English Gas Flow Metric Gas Flow
Units Units
Pump displacement (a.) = .2cc .2cc
Sample cylinder size (b.) = 300cc 300cc
Average ow rate (c.) = 10 MMCF per day 10MCM/day
Sample period (d.) = 30 dyas 30 days
Pulses per volume metered (c.) = 100 pulses/MMCF 100 pulses/MCM
Example #1
counter setting = .2cc x 10 MMCF per day x 30 days x 100 pulses per MMCF = 20 pulses
300 cc
Example #2
counter setting = .2cc x 10 MCM per day x 30 days x 100 pulses per MCM = 20 pulses
300 cc
Figure 10
Example
20 pulses

SECTION 6: Programming for Proportional-to-Time Operation SECTION 6: Programming for Proportional-to-Time Operation
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com1
NJEX 610G 7-2018
Page 13
1. Calculate the sampling rate using the following 30 day chart:
2. Set the timer dials on the Z-65 to the sample rate from step 1.
NOTE: To obtain maximum battery life, choose
the longest time interval and the largest pump
displacement setting possible.
NOTE: The time (18 minutes), in the chart
above, corresponds to the dial setting shown for
the Z-65 model with the timer range setting in
the factory position (jumper on the two left pins).
See Section 9 Timer Range Setting, page 21.
Figure 11 Example
Number of
turns
open on
pump
stroke knob
sample
pump
displace-
ment
per stroke
Sample cylinder volumes
1000 cc 500 cc 300 cc
3 .100 4 9 15
6 .200 9 18 30
9 .300 13 27 45
12 .400 18 36 60
Sample
rate
(minutes)
3. Adjust the pump volume adjustment knob to the value used in the calculations in step 1.
Sample pump displacement per stroke Number of turns open on the pump volume knob
.1cc 3
.2cc 6
.4cc 12
4. Turn mode switches 1, 2, 3 to ON and 4 to
OFF.
5. Press the test button once to initiate the timer
sequence.
Figure 12

SECTION 7: Mechanical System
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-201 8 Page 14
Overview
The 610G mechanical system is composed
of the mechanical/electrical enclosure.
Individual components of the system are
shown below and described in the following
pages.
Figure 13
NJEX Gas Filter
NJEX Gas Filter
Manifold

Actuation
Metering Pump
Model 6000B
  




SECTION 7: Mechanical System
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 15
NJEX Gas Filter
A 25 micron coalescent lter is provided with
each 610G. This lter, as shown, is installed on
the back outside of the enclosure and should be
connected to the regulated (50-60 psi / 3.45-
4.15 bar) actuation gas supply provided by the
system operator. By conditioning the incoming
actuation gas, a clean pneumatic supply will be
provided to the solenoid valves. This will ensure
a longer operational life for the pneumatic con-
trol system. If the actuation gas supply has a
high water content and / or a low hydrocarbon
dew point, additional ltration and heating of the
actuation gas supply may be necessary. Bottled
nitrogen can also be used as an alternate gas
supply source if gas conditioning is a problem.
Figure 14

SECTION 7: Mechanical System
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-201 8 Page 16
Model 6000 pump
The NJEX 6000 pump, as shown, is a pneumati-
cally actuated, positive displacement, plunger
pump. The 6000 is actuated with compressed air
or pipeline gas at a pressure of 30-60 psi (2.07
– 4.14 Bar), refer to Section 2, the System Flow
Schematic, Figure 2. The pump has an adjust-
able displacement of 0.1cc, or 0.02cc. It achieves
proportional-to-ow injection through adjustment
of the stroke rate. The 6000 is rated for a maxi-
mum stroke rate of 60 strokes per minute.
Each time the pump strokes, the plunger
displaces odorant through the discharge check
valve. The pump is congured with two sets of
plunger seals, segregated from each other with a
trapped air space, minimizing the risk of odorant
escape into the atmosphere.
The 6000 incorporates a cartridge design in key
areas that are most likely to require maintenance.
They are: the inlet check valve, the discharge
check valve, and the plunger bushing / seal
assembly. The cartridge design provides easier
maintenance resulting in less down-time.
The gage on the front of the pump reects any
pressure between the two sets of seals in the
pump in case of primary seal failure. Normally
this gage should be reading “0 psi” and should
show no movement. If the gage shows a sudden
swing upward in pressure with each stroke of the
pump, this is an indication that the pump should
be rebuilt due to primary seal damage.
Actuation Gas Manifold:
The actuation gas manifold houses the actuation
gas supply connection and the pneumatic
exhaust connection for the 610G system. These
openings are located on the left side of the
mechanical enclosure and are ported through the
enclosure wall. The upper manifold connection
is for the actuation gas supply, while the lower
connection is for the exhaust connection. The
actuation gas manifold also serves as the
mounting location for the solenoid valve.
Solenoid
Actuation Gas
Supply
Exhaust
Muffler
Figure 15
Figure 16

SECTION 8: System Maintenance
YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX 610G 7-2018
Page 17
Preventative Maintenance
Schedule
A preventative maintenance program serves to
anticipate maintenance issues prior to waiting
until the system requires service. Like changing
the oil & lters in an automobile, by choosing to
service the various parts and operation in the
NJEX System at regular intervals, the technician
can perform the maintenance service when
desired, rather than when required, such as in the
middle of night.
The key is to perform maintenance before it is
required. The preventive maintenance schedule
implemented should consider the application
of the odorizer. Many of these considerations
include: the weather environment; the condition
of, the actuation gas, the odorant and the
odorant bulk storage tank, and the pump stroke
frequency. All of these issues must be considered
when establishing a preventative maintenance
schedule.
Recommended Maintenance
Schedule
Weekly Inspection
1. Verify gas pressures
2. Check for gas and odorant leaks
3. Visually inspect for obvious external problems
Annual Inspection
1. Change lters
2. Rebuild pump
3. Replace solenoid
4. Test regulators and service, as needed
5. Condition the odorant, as needed.
6. Test the NJEX System performance
7. Replace the battery (More frequent
replacement may be required if the odorizer
strokes more than 5 times per hour)
Recommended Spare Parts List
Part # Description Recommended
Quantity
A4-0003 3-way solenoid valve 1
C4-0133 NJEX gas lter replacement
lter element 1
D3-0140 Model 6000B pump seal
replacement kit 1
D3-0142 Z-65/200 fuse replacement kit 1
E3-2001 LBP-14 internal Z-65 battery 1