RPB GX4 08-400 User manual

INSTRUCTION MANUAL

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RPB® Safety Global Headquarters 2807 Samoset Rd, Royal Oak, MI 48073, USA.
T: 1-866-494-4599 F: 1-866-494-4509 E: [e-mail] rpbsafety.com
RPB® Safety Asia Pacic Headquarters 652 Halswell Junction Road, Hornby South
8042 New Zealand. T: [phone] F: [phone] E: [e-mail]
rpbsafety.com
RPB, Advancing Your Safety, Nova 3, Nova, Radex and Zytec are registered trademarks
of RPB Safety LLC.
For technical assistance contact our Customer Service Department
on 1-866-494-4599 or email: [email protected]om
INTRODUCTION 3
WARNINGS 4
SETUP 5
WEBSITE 7
OPERATION 12
MENUS 15
SENSOR CHECK 16
ALARMS 18
MAINTENANCE 19
PARTS AND ACCESSORIES 22
CONTENTS
Read all instructions and warnings before using this product.
Keep this manual for future reference.
Form #: 7.20.533
Rev: 2

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INTRODUCTION
The RPB® GX4, model 08-400, tests the
quality of compressed breathing air for
Carbon Monoxide and other gases*.
Compressed Air is supplied to the unit
through the sampling hose at a constant
ow to the sensors for continuous
analysis.
KEY FEATURES:
- Multiple gasses monitored
simultaneously
- Traceability of gas levels,
temperature, alarms, air ow,
sensorchecks and more
- Internal web server for remote
monitoring, reviewing logs and
printing reports
- 3 inch LCD display and 6 buttons to
easily navigate the menus
- Exterior lights and alarms
- Auxiliary output for external alarms,
strobe lights or solenoids
- Tamper switch sealed inside of unit
- Robust protective housing
- Mounts to a Radex ltration system
- Optional wall mount bracket
- Optional protective travel case.
The monitor must be supplied with
GradeD air and must be free of oil
and water to prevent contamination
of the sensors. A micro-mist lter prior
to the Radex air ltration system is
recommended to protect the GX4 and
the operator(s). Check with your local
regulatory bodies for more information
on local requirements.
The monitor operates at 12 volts DC and
can be used with either the 110/240v AC
Adaptor (P/N: 08-430) or the 12v cable
with Battery Clips (P/N: 08-431). The unit
is designed to operate in temperature
ranges of 14° to 120F (-10 to +50C)
and Humidity levels of 5% - 99% (no
condensation).
The RPB® GX4 when used with the
Carbon Monoxide Sensor Cartridge (P/N:
08-420-01) satises the requirements of
OSHA rule 29 CFR 1910.134 for carbon
monoxide monitoring.
RPB® Safety provides maintenance
service through its service centers.
In some locations RPB® has units
available for hire while your unit is being
serviced. Contact our Customer Service
Department on 1-866-494-4599 or
email: [email protected]om
* Visit rpbsafety.com for a list of available
gas sensors.
WARRANTY
This RPB® Safety product is covered by
a manufacture’s warranty of 1 year. The
manufacturer warranty covers defects
in material, workmanship and does not
cover damage caused by misuse or abuse.
RPB® Safety’s only obligation and your
exclusive remedy shall be to repair, replace
or refund the purchase price of such
parts or products upon the presentation
of proof of purchase. Maximum liability
is in no case to exceed the value of the
RPB® Safety Product involved. Damage
to the Sensor Cartridges by oil or other
contaminants will void the warranty on
the Sensor Cartridge.

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switch is activated and/or the seal is
broken it will void all warranties.
8. Only remove replaceable parts as
listed in the parts and accessories.
Do NOT remove any part of the GX4,
especially the air inlet tting or the
power and auxiliary receptacles
under any circumstances. Removing
any part will void all warranties.
*Should the need arise, the unit must be
returned to RPB® Safety to perform any
repairs.
9. Sensors may contain sulfuric acid or
other hazardous chemicals which
are poisonous, can cause burns or
eyesight loss. Do not allow contact
with skin or eyes. If eyes are exposed
to the chemicals ush thoroughly
and seek medical attention. Always
wash hands thoroughly after
handling a sensor cartridge.
10. RPB® Safety cannot accept any
liability of whatsoever nature arising
directly or indirectly from the use
or misuse of RPB® Safety products,
including purposes that the
products are not designed for.
11. RPB® Safety is not liable for damage,
loss or expense resulting from the
failure to give advice or information
or the giving of incorrect advice or
information, whether or not due
to RPB® Safety’s negligence or that
of it’s employees, agents or sub-
contractors.
!WARNINGS!
1. When correctly installed and
maintained, the RPB® GX4 monitors
the level of relevant gasses in the
breathing air. It DOES NOT remove
any gasses from the air.
Only gasses relating to the inserted
cartridges can be detected. Ensure
you install all necessary cartridges
for your application.
2. Do not use this unit until you have
been trained in its operation by a
qualied individual appointed by
your employer. Failure to adhere to
the user’s instruction manual could
result in serious injury or death.
3. Leave work area immediately if the
monitor alarm sounds, check air
source and wait until alarm mode
stops. If it continues, verify sensor
calibration or change your air source.
4. The RPB® GX4 model 08-400 is not
approved for use in hazardous or
explosive atmospheres.
5. Do not cover the warning alarms
that are attached to the unit.
6. Regular testing of the alarm and
cartridges is required to detect
system failures and calibration.
Always wear hearing protection
when testing the alarm.
7. Do not open the monitor casing. The
unit is sealed closed and equipped
with a tamper switch. If the tamper

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BEFORE YOU USE YOUR
GX4.
Unpack the unit from the shipping
carton and remove the shrink wrap
from the sensor cartridge. Read all
instructions and warnings that are
included with the unit. Dispose of the
removed packaging responsibly making
sure there is nothing important left
inside.
REGISTRATION:
Go to: http://go.myrpb.com/GX4-reg
to register your GX4 and be notied
of software updates and important
product information.
UPDATES
The GX4 rmware should be updated
regularly to ensure you have access
to the latest features and maintain
compatibility with the latest cartridges.
Visit http://go.myrpb.com/GX4-Update
for information on the latest software
and how to upgrade your unit.
SENSOR CHECK:
Checks should be performed when a
new cartridge is installed and monthly
thereafter. This will insure the cartridge
is within calibration and providing
adequate protection.
Follow the Sensor Check instructions
on page 17 to check the calibration
of the cartridges. If the cartridge is no
longer within calibration, follow the
instructions for removing it and replace
it with a new cartridge.
LOCATION
SETUP
Place the GX4 in a place that:
- The alarm can be heard
- Is protected from water and impact
See mounting instructions on pg. 8.

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WIFI CONNECTION
To unleash the full power of the GX4, it is recommended to connect it to the internet
via the built-in wireless network transceiver. This connection allows easy rmware
upgrades and the unit hosts a website available to devices on that network. Use the
website to stream real-time gas levels, search through logs or print reports.
The GX4 can operate in two wireless modes. To select a mode in the Menu go to
Network and then Mode. Use the arrow keys to switch between modes and press OK
to select a mode. The unit will restart and resume operation in this network mode.
SETUP (CONTINUED)
Client Mode
Wireless
Router
or or
PC Tablet Smartphone
PC
GX4
Client Mode
Internet
Hotspot Mode
or or
PC Tablet Smartphone
GX4
Hotspot Mode
Internet
*Limited
Connectivity
PC
or
CLIENT MODE:
Use when you have access to a wireless
network {IEEE 802.11 b/g/n}.
- The GX4 must be connected to the
same network as your PC/Tablet/
Smartphone
- Access the GX4 website through
your internet browser.
- Multiple GX4s can be connected in
Client Mode to the same network
and each individual GX4 website
can be viewed on a seperate web
browser page.
HOTSPOT MODE:
Use to connect directly to your GX4
when you do not have access to an
existing network.
- The GX4 Hotspot Mode does not
connect to the internet.
- Devices can only connect to one
GX4 in Hotspot Mode at a time.
- For multiple GX4s, disconnect from
one before connecting to another.
Note: Although multiple devices can
connect, the GX4 is not a router. When
in Hotspot Mode your device can only
communicate to the host GX4.
To congure your network see page 15.

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WEBSITE
The GX4 has an internal website that can be accessed by internet enabled devices.
This allows the user to view information about the unit and change settings such as
the network connection. This is your portal to access the full potential of the GX4.
To access the website for your GX4 from your internet connected device:
In Hotspot mode:
- Browse to http://192.168.1.3/
In Client mode:
- Locate the IP Address for your unit in the “About” menu.
- Make sure the GX4 and your internet enabled device are on the same network.
- Type the IP address into your internet browser, http://<IP Address>/
Features
The internal GX4 website provides the following features:
Dashboard Page
- Status of the unit (Power, Alarm, Auxiliary...)
- Network Conguration
- Change Wireless mode (O, Client, Hotsport)
- Change settings or connect to a dierent network
- Status of each cartridge
- Type of gas being monitored
- Current reading
- Last validation date
- Expiration date, and more
Logs
- Select a date(s) to view logs from
- Logs show events such as alarms, sensor checks, warnings, etc.
- Export visible logs as a CSV le for all logs or main events
Certicate of Calibration
- Printable report of the last sensor checks for each cartridge
- To save as a PDF, use a PDF printer driver or a browser with PDF functionality

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SETUP (CONTINUED)
Position the monitor so that the green
brackets on the back line up with
the mounting bracket on the side of
the RADEX® , turn clockwise until the
monitor clicks into place.
Use the wall bracket (P/N: 08-231) and
appropriate screws to secure the wall
mounting bracket to a suitable wall.
MOUNTING TO A RADEX® FILTRATION UNIT
Figure 1.1
Figure 1.3
Figure 1.2
Position the monitor so that the green
brackets on the back line up with the
mounting bracket, turn clockwise until
the monitor clicks into place.
MOUNTING TO A WALL BRACKET

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Insert the 3/8” O.D. Air Supply Hose (P/N:
08-428) into the push-lock tting on the
left side of the monitor. To disconnect,
press the outside ring of the push-lock
and pull the hose out. Note: Hose can be
trimmed to the desired length.
CONNECT THE AIR SUPPLY
Figure 2.1
When using Battery Clips (08-431),
connect:
- Black = Negative
- Red = +12V (± 0.5V)
1 2
+ -
Connect the power supply by screwing
it onto the receptacle on the left side
of the unit (next to the air inlet tting.)
Plug the AC Adaptor into a power
source.
Connect the air supply hose to a
GradeD air source regulated to between
7 to 80 PSI (50-550 kPa). Maximum air
ow is achieved at 20 PSI.
CONNECTING THE POWER SUPPLY
between 10-125psig.
Figure 3.1
Figure 2.2
Figure 3.2

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If using an external alarm device,
connect the plug into the auxiliary
outlet. The use of an external alarm is
recommended when the GX4 cannot
be seen or heard by the operator. The
external alarm should be located near
the work area to alert the operators of
the status.
Alternatively, the auxiliary can control a
shut o valve, or other safety device.
Figure 4.1
CONNECT THE EXTERNAL ALARM
SETUP (CONTINUED)
To congure your own external device,
use the bare end AUX cable (08-434).
It is recommended to use a qualied
electrician when wiring to ensure you
do not damage the electrodes.
- Incorrectly wiring your auxiliary can
permanently damage your unit.
- Always use a qualied electrician.
- Damage to the auxiliary is not
covered under the manufacturer’s
warranty.
1. Brown - 12V DC
2. Blue - Alarm Out
3. Black - Ground
4. White - Alert Out
5. Green - OK Out
Figure 4.2

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Monitor
Aux Output
Output Specications V out with external supply = V in-1V V out with battery backup = 11.5V I out max = 500mA
Auxiliary Powered Light Tree External Powered Light Tree
+
-
Battery
13Wh
Protection
&
Management
NPN NPN NPN
1 2
1 2 3 4 5
V Out Alarm Ground Warning OK
Power Input10-16V DC
1 2 3 4 5
OK
Warning
Alarm
Note: External ground must match that of the power supply. (08-430 has a oating ground, so will adjust to suit.)
1 2 3 4 5
~
Not OK
OK
NC NO
Recommended Failsafe
The foll owing system provides the most fail safe protection:
Connect the coils ofa relay (12VDC, SPDT)to ports 1 and 5 of the GX4 auxiliary receptacle.
Connect your equipment into either the “OK”or “Not OK” positions of the circuit to alert
users of pote ntial dangers.
Pin
1 2 3 4 5
Function Vout
Alarm Ground Warning OK
Voltage (Vin - 1) V
11.5V on Battery 12V DC 12V DC 12V DC 12V DC
Current 500 mA 750 mA 1,500 mA 750 mA 750 mA
1 2 3 4 5
OK
Alarm
Warning
12V
EXTERNAL WIRING DIAGRAM

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To turn the unit on, press and hold the
“OK” button until the “rpb” logo appears
on the screen.
Figure 5.1
POWER ON
Tip: you can store the AC Adaptor
between the tabs on top of the
mounting bracket.
Figure 5.2
OPERATION
Press and hold the“OK” button and the
unit powers down.
Figure 6.1
POWER OFF

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GAS DETECTION CARTRIDGES
Each cartridge is represented by a box
on the home screen. Each box shows
the gas type, units of measure and the
current reading.
The gas detection sensors are supplied
in individual cartridges. Select the
cartridge for each gas you wish to
detect at the correct alarm threshold for
your region.
Visit rpbsafety.com for a list of available
sensors.
The cartridge will appear on the screen
in the box that correlates to the slot it
was placed in. The corresponding light
above the screen will glow red or green
to indicate the status.
Insert the cartridge into any of the 4
slots in the monitor. First locate the top
end so the tabs line up, then push the
bottom until it clicks.
Figure 7.1
Figure 7.3
Figure 7.2
Figure 7.4
CO 0
PPM
Open
0
- - -
Open
0
- - -
Open
0
- - -
CO 0
PPM
OPERATION (CONTINUED)
Gas
Value
Unit of
Measure

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Each monitor comes with 3 blank
cartridges. These should be placed into
slots that are not currently being used
to protect the electrical contacts and air
supply manifold.
To remove a cartridge, press the
corresponding release button and the
cartridge will “pop up”.
Figure 7.5
Figure 8.1
REMOVE CARTRIDGE
Lift the edge of the cartridge to remove
it fully from the monitor. Replace with
a new cartridge or a blank sensor
cartridge.
Figure 8.2
OPERATION (CONTINUED)

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MENUS
ABOUT
Unit Status, Owner Information,
Network, Power, and Device
information. Owner information can be
entered via the web interface.
DEVICE INFORMATION
Displays information such as:
- Serial Number
- Firmware Version
- UUID/MAC address
SENSORS
Sensor cartridge information on each.
Browse each cartridge for:
- Last date checked
- Expiration Date
- Type of gas sensor
- Safe/alarm range
- Date of Manufacture
- Total run time
More information about each cartridge
can be found in the web interface.
SENSOR CHECK WIZARD
Follow the onscreen prompts to check
the calibration of your sensor cartridges.
NETWORK SETTINGS
Congure a WiFi connection or change
advanced IP settings.
When connecting the GX4 to a network
you may be prompted to enter the
network name (SSID) and the wireless
password. If you do not know these,
contact your network administrator or
the documentation that came with your
wireless router.
The IP settings are set automatically by
default. To manually change the settings
go to the network settings menu and
enter the desired settings:
- IP Address
- Subnet Mask
- Default Gateway
- DNS Address
DATE
To ensure continuity of the logs, the
date is automatically set by the server.
The clock has a dedicated 10 year
battery.
TIME
The time can be changed to display the
current time zone and day light savings
time. The logs are recorded in UTC/GMT
and display according to your settings.
UNITS
The units of measure can be changed
between Metric and Imperial.
ALARM AND AUXILIARY
Test the alarm and check the status of
the auxiliary.
DEVICE SOFTWARE
Factory reset of rmware settings.
Note: Logs are not erased during a
factory reset.

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SENSOR CHECK
The gas sensor cartridges come pre-calibrated, but they should be checked regularly
to ensure they are still calibrated within government regulations.
Select “Menu”-> “Sensors” -> ”Check Sensors”, then follow the prompts on the display
menu to run a Sensor Check on each cartridge.
You will need:
- Zero Air Bottle (08-460) containing 20.9% Oxygen in Nitrogen
- Control Air Bottle(s) specic to the gas of the cartridge(s) being checked
- Calibration Kit (08-450) to connect the bottles to the GX4
IMPORTANT: Alarms will be disabled. You must conrm the monitor is not in
use. Always wear P.P.E., such as face and respiratory protection, and work in a well
ventilated area when working with compressed air and hazardous gases.
Calibration Gas should be supplied between 1 and 4slpm or via a pressure regulator.
Using the 08-461 and 08-451, up to 40 calibration checks can be performed.
Connect the test air bottles to the air
inlet.
Figure 12.2 is an example of the
on-screen display during a sensor check.
The unit will conrm if the cartridge(s) are still in calibration or not. If the cartridge(s)
pass, you may proceed to checking the next cartridge(s) or using the monitor. If the
cartridge(s) are no longer in calibration, replace the cartridge(s) with a new one(s).
Sensor Checks are recorded into the Logs and Certicates can be generated using the
web interface.
Figure 12.1 Figure 12.2
WIZARD - INFO
You will need:
Zero Air: 08-460
Control Air
Cal. Kit: 08-450

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SENSOR CHECK (CONTINUED)
SENOR CHECK OPERATION
DO NOT REMOVE THE CARTRIDGES
DURING A SENSOR CHECK.
1. Disconnect air supply.
2. Press the “Menu” button.
3. Select “Sensors”.
4. You will need: Zero Air: 08-460,
Control Air (select depending on
type of sensor being checked).
Calibration Kit: 08-450
5. Ensure you are wearing proper P.P.E.
and are in a well ventilated area.
6. Agree to disable the alarms.
7. Select Control Gas type.
8. Connect gas and open the valve.
9. Start the test.
10. Test pass or fail.
11. Close the valve and disconnect the
Air.
12. Connect Zero Air and open the
valve.
13. Close the valve and disconnect the
Zero Air.
14. If the sensor failed, remove it from
the unit and replace it with a new
cartridge.
15. Reconnect to the air supply to
resume regular operation.

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The alarm will sound in the following
scenarios:
- Concentration of any gas being
monitored exceeds the allowable
limits set by the cartridge
- Software becomes unresponsive
- Air supply is lost
- Cartridge is missing
- Battery is low
The screen will display which gas and
cartridge is detecting the alarm. Also,
the light above the aected slot on the
screen will turn red.
The alarm can be silenced by pressing
the “Silence”hot key button under the
screen. This will silence the alarm for 30
seconds. If the gas concentration is still
above the allowable limit the alarm will
sound again.
All alarms and silence events are
recorded in the event logs.
It is recommended that an external
alarm system be wired to the Auxiliary
outlet.
CARTRIDGE REMOVAL
Upon removal of a cartridge, a warning
message will appear on the screen.
If a response to this warning is not
made within 30 seconds, the alarm will
sound. This is a safety feature to detect
a cartridge coming out of the unit
unintentionally.
ALARMS
Plugged In/
Charging
Fully
Charged
Battery
Low
Figure 9.1
BATTERY
Although the GX4 is designed to be
run on external power, it has a built in
Lithium Polymer battery. The battery
is intended for backup purposes in the
event of a power failure.
Under normal operation the monitor
can run for up to 24 hours on battery
power.
The status of the battery is shown on the
home screen as per Fig. 9.1
Note:
The unit requires 10 seconds to read the
battery level after the unit is turned on.

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To remove the manifold for inspection,
press in the green clip so it can be
pulled out through the notches of the
monitor case.
In the back of the GX4, there is a
manifold (to distribute the air to the
sensors) comprised of a clear tube with
endcaps. This needs to be checked
regularly to ensure it is clear of oil and
debris. Note: Evidence of oil indicates
an air supply issue that needs to be
resolved.
Figure 10.1 Figure 10.2
MAINTENANCE
MANIFOLD CHECK AND REPLACE
At the base of the manifold is a push-
lock tting with a green ring. Pull out
the manifold while pushing on the ring.
Rotate the manifold so it is sticking
straight out from the back of the
monitor.
Figure 10.3 Figure 10.4

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To replace the manifold, insert the
tapered end into the green ring of the
push-lock tting inside the back of
the monitor. Orient the holes in the
manifold towards the sensors.
Rotate the manifold into the back of
the monitor so the clip goes into the
notches on the back of the monitor
making sure it is securely clipped in.
After removing the manifold, inspect
it from all sides to make sure all of the
holes are clear and that there is no oil
or debris inside of the tube. DO NOT
DISASSEMBLE THE MANIFOLD. If there
is oil or debris inside of the manifold
a replacement manifold (P/N: 08-422)
must be used.
Figure 10.5 Figure 10.6
Figure 10.7
If the Mounting Brackets (P/N: 08-425)
break, you can replace them by
removing the two screws securing each
bracket. Remove the broken bracket and
replace with a new bracket. Secure the
new bracket with the provided (UNC 10-
24 x ¾”) screws.
Figure 11.1
REPLACE MOUNTING BRACKETS
MAINTENANCE (CONTINUED)