RKI Instruments AirLink 9900 XP User manual

RKI Instruments, Inc.
www.rkiinstruments.com
AirLink 9900 XP
Signal Repeater
Operator’s Manual
Part Number: 71-0561
Revision: P1
Released: 11/8/21

2 • AirLink 9900
Product Warranty
RKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materials,
workmanship, and performance for a period of one year from date of shipment from RKI Instruments,
Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of
charge. This warranty does not apply to those items which by their nature are subject to deterioration
or consumption in normal service, and which must be cleaned, repaired, or replaced on a routine basis.
Examples of such items are:
Warranty is voided by abuse including mechanical damage, alteration, rough handling, or repair
procedures not in accordance with the operator’s manual. This warranty indicates the full extent of our
liability, and we are not responsible for removal or replacement costs, local repair costs, transportation
costs, or contingent expenses incurred without our prior approval.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND
REPRESENTATIONS, EXPRESSED OR IMPLIED, AND ALL OTHER OBLIGATIONS OR
LIABILITIES ON THE PART OF RKI INSTRUMENTS, INC. INCLUDING BUT NOT
LIMITED TO, THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL RKI INSTRUMENTS, INC. BE LIABLE
FOR INDIRECT, INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND
CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO
FUNCTION OR OPERATE PROPERLY.
This warranty covers instruments and parts sold to users by authorized distributors, dealers, and
representatives as appointed by RKI Instruments, Inc.
We do not assume indemnification for any accident or damage caused by the operation of this gas
monitor, and our warranty is limited to the replacement of parts or our complete goods.
a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses

AirLink 9900 • 3
Table of Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
External Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Internal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Product Settings and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 • AirLink 9900
Overview
The AirLink 9900 WireFree signal repeater is designed to receive the transmission from an RKI
WireFree sensor assembly and repeat it to the WireFree monitor(s) on your site. This product’s
enclosure is CSA certified as Class I, Division 1, Groups B, C, and D and rated for Class I, Zone 1,
Group IIB. The AirLink 9900 features non-intrusive magnetic switches that allow for complete system
configuration to be performed in the field, without breaking the enclosure’s seal and compromising the
explosion-proof rating of the device. Non-intrusive interface with the AirLink 9900 is made possible
by use of the magnetic tool included in the purchase of the device. The AirLink 9900 display screen
always shows the current state of communication with the sensor assemblies and receiving monitor
devices.
Read this document before initial operation of the product.
WARNING: The AirLink 9900 is a radio signal repeater used to increase the distance between
AirLink sensor assemblies and the receiving AirLink monitor. The AirLink 9900 does
not detect or display the detected gas levels in the environment.
A site survey is required in order to determine the best placement and quantity of
repeater assemblies that may be required. Improper installation can lead to
inconsistent communication between the AirLink sensor assembly and AirLink
monitor which could result in personal injury or loss of life.

AirLink 9900 • 5
Specifications
Operating Power 12 to 35 VDC
Current Draw 150 mA maximum
Operating
Tempe rat ure
-40°C to 60°C (-40°F to 140°F)
Operating Humidity 0 - 98% relative humidity, non-condensing
Radio • 2.4 GHz ISM, 100 mW
or
• 900 MHz, 200 mW
Dimensions 6” (W) x 17” (H) x 5.5” (D)
Weight 6 lbs.
Enclosure Material Aluminum
Enclosure Ratings Explosion/flame-proof
Enclosure
Hazardous Location
Certification
Class I, Division 1, Groups B, C, D
Ex db IIB Gb
Class I, Zone 1, AEx db IIB Gb
Tamb -40°C to +60°C

6 • AirLink 9900
External Description
Figure 1: External Component Location
1Receiving antenna 9Enclosure lid-locking screw
210 foot extension cable 10 Front panel thumbscrew (2X)
3Transmitting antenna 11 ADD button
4Lightning surge protector 12 Enclosure
5Surge protector ground wire 13 MENU button
6Antenna fitting (2X) 14 SUB button
7Mounting hole (2X) 15 Display screen
8Dust plug 16 Magnetic tool

AirLink 9900 • 7
Internal Description
Figure 2: Internal Component Location
1Electronics assembly 4Radio module (2X)
2Mounting post (2X) 5Power terminal block
3Receiving antenna jack 6Transmitting antenna jack

8 • AirLink 9900
Exploded Diagram
Figure 3: Exploded Diagram
1Enclosure lid 7900 MHz transmitting antenna
2Receiving antenna plug 8Lightning surge protector ground wire
3900 MHz receiving antenna 9Enclosure ground screw
4Transmitting antenna plug 10 Electronics assembly
510 foot antenna extension cable 11 2.4 GHz antenna (replaces items 3 and 7)
6Lightning surge protector

AirLink 9900 • 9
Installation
This section describes procedures to mount the AirLink 9900 in the monitoring environment and wire
the AirLink 9900.
Mounting the AirLink 9900
The primary purpose of the AirLink 9900 is to provide an increase in distance between an AirLink
sensor assembly and an AirLink monitor. Proper placement of the repeater is paramount to achieving
this goal.
These installation instructions provide only basic guidelines relating to the properties of radio
communication and the effects of environmental conditions on the AirLink 9900. Repeater placement
should be determined in consultation with the site safety personnel, as well as those knowledgeable of:
(1) the site/facility where the equipment is being installed and (2) the potentially present radio
interference sources. RKI strongly recommends that a sight survey be performed to determine the best
placement of AirLink 9900 repeater devices.
1. In general, consider the following when you select a mounting site:
• The receiving and transmitting antennas should be mounted at least 10 feet apart.
• Avoid installing the antennas in a location surrounded by obstructions such as trees, buildings,
or other such obstacles.
• Consider accessibility for required maintenance.
2. Select a mounting location and installation hardware. Mounting to a concrete or steel structure is
recommended to minimize vibration and moisture. Use a maximum 1/4”-20 bolt or 1/4” diameter
screw, flat washers, Grade 5 material, and corrosion protection like paint, galvanization, or zinc
plating to mount the enclosure.
3. Use the included hardware to mount the transmitting antenna.
Wiring DC Power
The AirLink 9900 requires +12 to +35 Volts of wired DC to operate. The recommended wire size is
between 26 AWG and 14 AWG.
CAUTION: The internal components can be static sensitive. Use caution when opening the enclosure
and handling internal components.
CAUTION: Make sure the power source is off before beginning the wiring procedure.
CAUTION: DO NOT use any metal objects or tools to remove the terminal board from the internal
system.
1. Unscrew the enclosure lid and set it aside.
2. Grab the thumbscrews and gently lift the internal system out of the enclosure. It can rest on the
edge of the enclosure.

10 • AirLink 9900
NOTE: Disconnecting both antenna cable connections from the radio board will allow for the
complete removal of the internal system from the device enclosure. Disconnecting the
internal system may provide ease in accessing the control board terminals for wiring. If this
step is performed, it is essential that all connections are rejoined before returning the internal
system back into the enclosure.
WARNING: Use appropriate construction technique to maintain the explosion proof classification
of the assembly.
3. Feed the power wires through the AirLink 9900’s power hub and into the enclosure.
4. Locate the power terminal block on the control board and complete the following (see Figure 4).
• Connect the power (RED) wire to the +12 to +35 VDC terminal.
• Connect the ground (BLACK) wire to the GND terminal.
5. Route the wires to the DC power source and complete the following.
• Connect the power (RED) wire to the + terminal.
• Connect the ground (BLACK) wire to the - terminal.
Figure 4: Power Wiring

AirLink 9900 • 11
Closing the Enclosure
1. Place the internal system back into the enclosure, matching each mounting post to its
corresponding eyelet anchored within the base of the enclosure.
2. Using the thumbscrews, gently push to seat the internal system into the mounting posts.
NOTE: The thumbscrews on the AirLink 9900 function ONLY as thumb-holds for ease in removal of
the internal system from the base of the enclosure. Do NOT attempt to loosen or tighten the
thumbscrews when opening or closing the enclosure.
3. Verify that the sealing ring, seated at the threaded opening of the device enclosure, is correctly in
place.
4. Secure the enclosure lid back onto the enclosure.
WARNING: When securing the lid onto the device, tighten the enclosure lid by hand ONLY.
Overtightening of the lid by use of hand-tools could result in damage to the O-ring,
potentially compromising the moisture seal, resulting in an unsafe environment.

12 • AirLink 9900
Start Up
This section describes procedures to start up the AirLink 9900 and place the AirLink 9900 into normal
operation.
1. Complete the installation procedures described earlier in this manual.
2. Verify that the power wiring is correct and secure.
3. Turn on the power source.
4. Verify that the controller is on and operating properly. Refer to the controller operator’s manual.
5. The AirLink 9900 automatically powers on and enters a 20-second startup period.
6. At the end of the startup, the AirLink 9900 is in Normal Operating Mode.
1Network ID A (input) 5Product serial number
2Network ID B (output) 6Date of manufacture
3Product model 7Link status indicator - able to
communicate with primary monitor
4Firmware version 8Link status indicator - unable to
communicate with primary monitor

AirLink 9900 • 13
Operation
WARNING: Do not remove the enclosure lid while the circuits are energized unless the area is
determined to be non-hazardous. Keep the enclosure lid tightly closed during
operation.
Normal Operating Mode
During Normal Operating Mode, the AirLink 9900 continuously shows the reception of radio signals
from WireFree sensor assemblies and the status of communication with the receiving WireFree
monitor(s). The display, when in Normal Operating Mode, appears as shown below.
In the event of another Primary Monitor on the A network the following screen will appear:
Pressing the ADD button takes you to the “Setting Network ID A” screen where you can change to a
network ID that does not have a Primary Monitor present.
1Network ID A (input) 5Product serial number
2Network ID B (output) 6Date of manufacture
3Product model 7Link status indicator - able to
communicate with primary monitor
4Firmware version 8Link status indicator - unable to
communicate with primary monitor

14 • AirLink 9900
Magnetic Switch Operation
Use the provided magnet to actuate the AirLink 9900’s buttons without having to remove the junction
box’s lid. Touch the magnet to the outer edge of the junction box lid near the button you want to
actuate. Tapping the junction box is the same and pressing and releasing the button. Holding the
magnet against the junction box is the same as pressing and holding the button.
Powering the Device
The AirLink 9900 turns on and off with the application and removal of DC power.
Touch magnet here to
activate ADD button
Touch magnet here to
activate MENU button
Touch magnet here to
activate SUB button

AirLink 9900 • 15
Product Settings and Configuration
The Product Settings and Configuration menu allows the end-user to tailor the device settings to meet
their required specifications and/or site conditions.
The Product Settings and Configuration menu consist of the following screens:
•NetworkID
• Display Contrast
Entering the Product Settings and Configuration Menu
1. From Normal Operating Mode, press and hold MENU for 6 seconds.
NOTE: After 5 minutes of no interaction with the device, the unit will automatically return to normal
operating mode.
Setting the Network ID
The Network ID is used to synchronize the communication between the repeater, the monitor, and the
sensor assembly.
• There are 52 networks available with the 900 MHz radio.
• There are 78 networks available with the 2.4 GHz radio.
• The “A” network receives transmissions from the Sensor Assembly.
• The “B” network transmits the received transmissions on to the receiving monitor.
• The “A” network should be set to a Network ID value that is at least 5 higher than the “B”
Network ID value.
NOTE: The “A” network is configured to be a Primary Monitor and can not be changed. Secondary
monitors can be configured on the same Network ID as the “A” network to display Sensor
Assembly readings and activate alarms if desired.
The repeater will automatically transmit ANY received transmission on the “A” network and
can not be configured to only see a certain range of addresses.
1. If necessary, enter the Product Settings and Configuration Menu by pressing and holding MENU
for 6 seconds.
2. Use the ADD and SUB buttons to adjust the Network ID A.
3. Press and release MENU.

16 • AirLink 9900
4. Use the ADD and SUB buttons to adjust the Network ID B.
5. Press and release MENU.
Setting the Display Contrast
The display screen contrast is the difference in luminance or color that makes the displayed images
distinguishable. Due to varying external elements, such as extreme sunlight, the brightness of the
display screen may need to be adjusted for optimum viewing.
The factory default setting on the AirLink 9900 for the display screen contrast is 29, approximately
45% of the contrast scale. The contrast setting ranges from 1 to 64.
NOTE: Setting the contrast too low will cause the display image to become faint or indistinguishable,
especially when the unit is located in areas with full-sun. The resulting field of view could be
misinterpreted as an error within the device. Be sure to verify that the selected contract is
within an appropriate range of viewing.
1. If necessary, enter the Product Settings and Configuration Menu by pressing and holding MENU
for 6 seconds.
2. Press and release MENU until the Contrast screen appears.
3. Use the ADD and SUB buttons to adjust the contrast.
4. Press and release MENU to save the setting and return to Normal Operating Mode.
Parts List
Part Number Description
82-0101RK Magnetic wand
ZAN-2.4RIGID-R Antenna, rigid dipole, 2.4 GHz, N-male, right-angle
ZAN-2.4RIGID-S Antenna, rigid dipole, 2.4 GHz, N-male, straight
ZAN-900-FLEX-R Antenna, flexible dipole, 900 MHz, N-male, right-angle
ZAN-900-FLEX-S Antenna, flexible dipole, 900 MHz, N-male, straight