RKI Instruments AirLink 7032 User manual

RKI Instruments, Inc.
www.rkiinstruments.com
AirLink 7032 Gas Monitor
Operator’s Manual
Part Number: 71-0560
Revision: P2
Released: 9/26/22

2• AirLink 7032 Gas Monitor Operator’s Manual
Product Warranty
RKI Instruments, Inc. (Manufacturer) warrants its products to be free of defects in workmanship
and materials—under normal use and service—for one year from the date of purchase from the
manufacturer or from the product's authorized reseller.
The manufacturer is not liable (under this warranty) if its testing and examination disclose that the
alleged defect in the product does not exist or was caused by the purchaser's (or any third party's)
misuse, neglect, or improper installation, testing or calibrations. Any unauthorized attempt to
repair or modify the product, or any other cause of damage beyond the range of the intended use,
including damage by fire, lightning, water damage or other hazard, voids liability of the
manufacturer.
Any repaired or replaced product or part has either a 90-day warranty or the remainder of the
initial warranty period (whichever is longer).

AirLink 7032 Gas Monitor Operator’s Manual • 3
Table of Contents
Chapter 1: Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
About the AirLink 7032 Gas Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2: Internal Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 3: Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting the AirLink 7032 Gas Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Wiring the AirLink 7032 Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 4: Startup and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Home Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Trend Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Real-Time Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
View Days Since Last Zero and Cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Relay Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 5: Channel Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Entering the Channel Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Editing Channel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Changing the Date, Time, and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Exiting Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Chapter 6: Advanced Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Editing Advanced Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Relay Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4• AirLink 7032 Gas Monitor Operator’s Manual
Chapter 8: Viewing USB Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Chapter 9: Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix A: Relay Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Appendix B: Introduction to 4-20 mA Current Loop Signals . . . . . . . . . . . . . . 49
Appendix C: RS-485 Modbus Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Modbus Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Register Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

AirLink 7032 Gas Monitor Operator’s Manual Chapter 1: Introduction • 5
Chapter 1: Introduction
Overview
This chapter briefly describes the AirLink 7032 Gas Monitor. This chapter also describes the
AirLink 7032 Gas Monitor Operator’s Manual (this document). Table 1 at the end of this chapter
lists the specifications for the AirLink 7032.
About the AirLink 7032 Gas Monitor
The AirLink 7032 is a hybrid monitor and data logger that supports either 32 AirLink sensor units
or 64 AirLink sensor units depending on the configuration ordered. Either configuration can also
be set up for 4, wired 4-20 mA input sensors in place of 4 AirLink sensors.
All channels can be configured to detect AirLink gas sensor assemblies. If desired, the last four
channels (29-32 for 32-channel versions, and 60-64 for 64-channel versions) can be configured to
accept a 4-20 mA signal. By default, all channels except the last four are configured for AirLink
sensor assemblies. The last four channels are configured for wired sensor assemblies. Any
channel can be turned “off”, and any channel can be configured to any valid AirLink address, 1-
255.
There are four 5 Amp relays with 4 Amp fuses. The fourth relay may be configured as a Fault
relay. This Fault relay will activate if any Fault is generated by the monitor or if any sensor that
the monitor is configured to monitor goes into Fault. The Fault relay is removed from any further
configurable options from Channel Setup—leaving only three relays for each channel. All relays
can be configured to be either latching or auto resetting. The relays can be configured with
different set points for each channel.
An optional strobe and/or horn can be ordered. The strobe is installed on the top of the housing
and is wired into the first relay. The horn is installed on the bottom of the housing and is wired
into the second relay.
All relays have a 10% of value of hysteresis on the set points. This prevents the relays from
rapidly switching on and off during a potentially jumpy gas sensor reading. Once the threshold
value of a relay is reached, the relay is activated and the appropriate relay number is highlighted
for the affected channel. The gas reading must decreases to 90% of the relay value to deactivate.

6• Chapter 1: Introduction AirLink 7032 Gas Monitor Operator’s Manual
About this Manual
The AirLink 7032 Gas Monitor Operator’s Manual uses the following conventions for notes,
cautions, and warnings:
NOTE: Describes additional or critical information.
CAUTION: Describes potential damage to equipment.
WARNING: Describes potential danger that can result in injury or death.
Caution: refer to accompanying documentation
~ Vac (AC voltage)
Vdc (DC voltage)
!

AirLink 7032 Gas Monitor Operator’s Manual Chapter 1: Introduction • 7
Specifications
Table 1 lists specifications for the AirLink 7032.
Table 1: AirLink 7032 Specifications
Input Power
120/240V ~
OR
22 - 26 V
Current Draw
300 mA max at 24 VDC (monitor without sensor
assemblies)
3A max (with sensor assemblies)
Operating Temperature -20°F to 122°F (-28.9°C to 50°C)
Input Signal
32-channel AirLink 7032
• Up to 32 WireFree sensor assemblies
OR
• Up to 28 WireFree sensor assemblies and up to 4
4-20 mA input sensor assemblies
64-channel AirLink 7032
• Up to 64 WireFree sensor assemblies
OR
• Up to 60 WireFree sensor assemblies and up to 4
4-20 mA input sensor assemblies
Output • RS-485 Modbus
• Datalogging to USB drive
Construction (housing) Fiberglass with clear window (NEMA 4)
Dimensions 14.97 in. H x 12.17 in. W x 6.56 in. D
(38.02 cm H x 30.91 cm W x 16.66 cm D)
Weight 12 lbs.
Mounting 4 mounting feet (8” W x 14.38” T); 1/4” diameter max
mounting bolt/screw size
Display 7” resistive touchscreen
Relays
• 4 relays with 4A fuses
• SPDT, Form C (common, normally open, and
normally closed contacts)
Radio Options
• 2.4 GHz, ISM, 125 mW
OR
• 900 MHz, 200 mW

8• Chapter 1: Introduction AirLink 7032 Gas Monitor Operator’s Manual
Standard Accessory • Operator’s manual (this document)
• SD card with USB adapter
Optional Accessories •Strobe
•Horn
Table 1: AirLink 7032 Specifications

AirLink 7032 Gas Monitor Operator’s Manual Chapter 2: Internal Components • 9
Chapter 2: Internal Components
The inside of the AirLink 7032 contains the terminal board for wiring connections and the AC
power supply (for AC versions). The back of the touchscreen module is visible and has an SD
card with USB adapter installed on the back for datalogging.
Figure 1: Internal Components
Note: Delta power supply only included
with AC-powered version.

10 • Chapter 2: Internal Components AirLink 7032 Gas Monitor Operator’s Manual
Figure 2: Terminal Board

AirLink 7032 Gas Monitor Operator’s Manual Chapter 3: Installation • 11
Chapter 3: Installation
Mounting the AirLink 7032 Gas Monitor
1. Select the mounting site. When you select the mounting site, consider the following factors:
• Is an AC or DC power source available?
• Is a vertical surface available to mount the AirLink 7032?
• Is there enough room to open the housing door and make wiring connections?
• Are the display screen and status lights visible?
2. Close and latch the housing door.
3. Prepare the selected mounting site as required to mount the AirLink 7032. It should be
mounted at eye level (4 1/2 to 5 feet from the floor). Refer to Figure 3 for the outline and
mounting dimensions.
4. Position the monitor on the vertical mounting surface.
5. Insert maximum 1/4” bolts or screws through the slots in the mounting feet at each corner of
the housing to secure the housing to the mounting surface.

12 • Chapter 3: Installation AirLink 7032 Gas Monitor Operator’s Manual
Figure 3: Outline and Mounting Dimensions
8.0
Ø .31x .19,4X
6.6
14.4
27.6
20.4
22.2
12.2
29.4

AirLink 7032 Gas Monitor Operator’s Manual Chapter 3: Installation • 13
Wiring the AirLink 7032 Gas Monitor
This section describes procedures for DC power source wiring, AC power source wiring, Modbus
out wiring, fault indicator wiring, sensor connection, and relay wiring.
The following wiring connections must be made before starting up the AirLink 7032.
CAUTION: The internal components can be static sensitive. Use caution when opening the
enclosure and handling internal components.
WARNING: Make all connections to the AirLink 7032 before you plug in or turn on the AC or
DC power source. Before you make any wiring adjustments, always verify that all
power sources are not live.
Factory Wiring
Factory wiring for the AirLink 7032 is shown below.
NOTE: The power supply is only installed in AC versions. An AC power cord is only prewired
to the power supply in AC versions ordered with a power cord.
Figure 4: Factory Wiring

14 • Chapter 3: Installation AirLink 7032 Gas Monitor Operator’s Manual
Connecting a DC Power Source
NOTE: The AirLink 7032 is configured for AC or DC operation, depending on how it is
ordered. If you are using AC power as the primary power source, go to the next section,
“Connecting an AC Power Source”.
Provide a clean and stable 22-26 VDC. Failure to do so may cause the unit (and any wired sensors
that are connected to the unit) to not operate properly.
Voltage spikes higher than 26 VDC may damage the unit.
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb screws on the Front Panel.
3. Open the Front Panel so that the Terminal Board is exposed.
4. Locate the Power Terminal and connect the DC-live wire (red) to the terminal marked “+12-
35 VDC”.
5. Connect the DC-ground wire (black) to the terminal marked “GND”.
6. If desired, connect an Earth Ground wire (green) to the terminal marked “EGND” (required
for surge suppression).
Figure 5: DC Wiring
7. Close the Front Panel.
8. Screw in the thumb-screws.

AirLink 7032 Gas Monitor Operator’s Manual Chapter 3: Installation • 15
9. Close the enclosure box.
10. Clamp down the enclosure latches.
Connecting an AC Power Source
NOTE: The AirLink 7032 is configured for AC or DC operation, depending on how it is
ordered. If you are using DC power as the primary power source, go to the previous
section, “Connecting a DC Power Source”.
WARNING: Verify that the power source is unplugged or turned off before you continue with
this procedure.
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the AC (Delta) Power Supply is exposed.
4. The power supply is factory-wired to the Terminal Board.
5. For versions that came with a pre-wired AC line cord: there are three wires (black, white and
green) pre-wired from the Delta power supply terminals “L” (AC Load IN), “N” (AC Neutral
IN), and “EG” (Chassis GND or Earth GND). This set of wires will be used to plug into an
AC power outlet ONCE ALL WIRING CONFIGURATIONS ARE COMPLETE.

16 • Chapter 3: Installation AirLink 7032 Gas Monitor Operator’s Manual
6. For versions that did not come with a pre-wired AC line cord:
• Connect a line wire from the AC power source to the power supply’s “L” terminal.
• Connect a neutral wire from the AC power source to the power supply’s “N” terminal.
• Connect a ground wire from the AC power source to the power supply’s “EG” terminal.
NOTE: If the AirLink 7032 was not ordered with any housing holes, at least one
hole will have to be drilled to bring in AC power.
Figure 6: AC Wiring
7. Close the Front Panel.
8. Screw in the thumb-screws.
9. Close the enclosure box.
10. Clamp down the enclosure latches.

AirLink 7032 Gas Monitor Operator’s Manual Chapter 3: Installation • 17
RS-485 Modbus Wiring (Modbus Out)
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the Terminal Board is exposed.
4. Locate the Modbus Out Terminal Block.
5. Connect a red wire from a PLC’s RS-485 A (+) terminal to the terminal labeled “A” on the
Modbus Out Terminal Block.
6. Connect a green wire from a PLC’s RS-485 Ground terminal to the terminal labeled “GND”
on the Modbus Out Terminal Block.
7. Connect a black wire from a PLC’s RS-485 B(-) terminal to the terminal labeled “B” on the
Modbus Out Terminal Block.
Figure 7: Modbus Out Wiring
8. Close the Front Panel.
9. Screw in the thumb-screws.
10. Close the enclosure box.

18 • Chapter 3: Installation AirLink 7032 Gas Monitor Operator’s Manual
11. Clamp down the enclosure latches.
Fault Indicator Connection
The Fault terminal provides an output to power some form of Fault indicator. The Fault terminal
is wet contact, uses the same DC voltage that is powering the device, provides 500 mA maximum,
and is a DC only output.
The fault terminal’s failsafe operation can be configured as described on page 33.
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the Terminal Board is exposed.
4. Locate the Fault Terminal Block on the terminal board.
5. Connect a positive (red) wire to the terminal labeled “+”.
6. Connect a negative (black) wire to the terminal labeled “-”.
Figure 8: Fault Indicator Wiring

AirLink 7032 Gas Monitor Operator’s Manual Chapter 3: Installation • 19
Connecting Sensors
The AirLink 7032 allows up to 32 AirLink sensor assemblies or up to 28 AirLink sensor
assemblies and 4 wired 4-20 mA type sensor assemblies to be monitored (depending on the
configuration ordered).
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the Terminal Board is exposed.
4. Locate the Sensor Terminal Blocks on the Terminal Board.
5. For each of up to 4 wired 4-20 mA type sensor assemblies:
• Connect the sensor assembly’s positive (red) wire to the terminal labeled “+VDC”.
• Connect the sensor assembly’s signal (green) wire to the terminal labeled “4-20 mA”.
• Connect the sensor assembly’s neutral (black) wire to the terminal labeled “GND”.
Figure 9: Sensor Wiring

20 • Chapter 3: Installation AirLink 7032 Gas Monitor Operator’s Manual
Relay Wiring
The AirLink 7032 has four relays. Each of the four relays may be setup as Normally Open (NO)
or Normally Closed (NC). See page 47 for more explanation about relay actuation.
NOTE: If installed, the strobe is factory wired to the Relay 1 terminals and the horn is factory
wired to the Relay 2 terminals.
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the Terminal Board is exposed.
4. Locate the Relay Terminal Blocks on the Terminal Board.
5. Connect the alarm device’s “+ (H)” terminal to the NO or NC terminal on the relay terminal
block.
NOTE: It is recommended that the relay connections are wired as normally-open
(NO). However, normally-closed (NC) wiring configurations provide an
inherent fail-safe and may be preferred.
6. Connect the alarm device’s “- (N)” terminal to an external power source’s “- (N)” terminal.
7. Connect the external power source’s “+ (H)” terminal to the COM terminal on the relay
terminal block.