ANALOX Ax60+ Multi-Gas User manual

Analox Limited
15 Ellerbeck Court, Stokesley Business Park,
North Yorkshire, TS9 5PT, UK
UK/RoW T: [phone] F: [phone]
US T: [phone]
W: www.analox.net E: [e-mail]
Copyright © 2015 Analox Ltd. All Rights Reserved.
Ax60+ Multi-Gas
Service Manual

Ax60+ Multi-Gas
Service Manual Int. Approved
Document ref: P0159-803-11 September 2019 Page 3 of 62
Copyright © 2015 Analox Ltd. All Rights Reserved.
Commercial in Confidence
Contents
1Introduction..................................................................................................................... 5
1.1 Warnings, Cautions and Notes.................................................................................................................................................................. 5
1.2 Safety information.......................................................................................................................................................................................... 5
1.3 Other information........................................................................................................................................................................................... 5
1.4 Alarm terminology (CO2) ............................................................................................................................................................................. 6
1.5 Alarm terminology (O2) ................................................................................................................................................................................ 6
2Configuring sensors ........................................................................................................ 7
2.1 Hardware setting............................................................................................................................................................................................. 7
3Software Overview.......................................................................................................... 8
3.1 Powering up...................................................................................................................................................................................................... 8
4Menu options................................................................................................................. 11
4.1 Read-only menus..........................................................................................................................................................................................12
4.2 List Alarm points (Displayed as List Alrm pnts)................................................................................................................................14
4.3 List Alarm descriptions (Displayed as List Alrm descs)..................................................................................................................16
4.4 Testing relays (Displayed as Test relays).............................................................................................................................................18
5Calibrating Ax60+ sensors ........................................................................................... 19
5.1 CO2sensor calibration proof test...........................................................................................................................................................19
5.2 CO2sensor calibration adjustment........................................................................................................................................................20
5.3 O2sensor calibration proof test..............................................................................................................................................................24
5.4 O2sensor calibration adjustment...........................................................................................................................................................25
6Calibrating Ax60+ Kiosk sensors................................................................................. 29
6.1 CO2sensor calibration proof test...........................................................................................................................................................29
6.2 CO2sensor calibration adjustment........................................................................................................................................................30
6.3 O2sensor calibration proof test..............................................................................................................................................................33
6.4 O2sensor calibration adjustment...........................................................................................................................................................33
7Electrochemical sensor replacement........................................................................... 34
8Central Configuration (Displayed as Central Config) ............................................... 35
8.1 Attached snsrs................................................................................................................................................................................................35
8.2 Sensor Display Option (Displayed as Snr Display Opt).................................................................................................................36
8.3 Set Evacuation................................................................................................................................................................................................37
8.4 Relay configuration......................................................................................................................................................................................38
9Sensor Configuration (Displayed as Sensor Config) ................................................. 44
9.1 Enable alarms .................................................................................................................................................................................................44
9.2 Enable Evacuation (Displayed as Enable Evac) .................................................................................................................................45
9.3 Alarm Direction..............................................................................................................................................................................................46
9.4 Enable Sounder..............................................................................................................................................................................................47
9.5 Enable Strobe .................................................................................................................................................................................................48
9.6 Alarms Latching/Non Latching (Displayed as Alarms Latching) ...............................................................................................49
9.7 Alarm set-points (Displayed as Alrm set-pnts).................................................................................................................................50
10 Ax60+ Kiosk Option................................................................................................... 52
11 Fault finding................................................................................................................ 53
11.1 Fault codes.......................................................................................................................................................................................................53
11.2 Data Output Module fault indication...................................................................................................................................................54
12 Appendix A –Default Central Unit configuration settings ................................... 55
13 Appendix B –Default CO2sensor configuration settings ..................................... 56
14 Appendix C –Default Kiosk CO2sensor configuration settings ........................... 57
15 Appendix D –Default O2sensor configuration settings ....................................... 58

Ax60+ Multi-Gas
Service Manual Int. Approved
Document ref: P0159-803-11 September 2019 Page 4 of 62
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Commercial in Confidence
16 Appendix E –Data Output Module MODBUS detail.............................................. 59
16.1 MODBUS communications protocol ....................................................................................................................................................59
16.2 MODBUS register map ...............................................................................................................................................................................60
16.3 Changing DOM Node Addresses...........................................................................................................................................................62

Ax60+ Multi-Gas
Service Manual Int. Approved
Document ref: P0159-803-11 September 2019 Page 5 of 62
Copyright © 2015 Analox Ltd. All Rights Reserved.
Commercial in Confidence
1Introduction
This Service Manual explains how to service and calibrate the Ax60+. It is intended for system installers and service
engineers. For information on installation and operation, refer to the Ax60+ User Manual P0159-800, downloadable from
Analox.
1.1 Warnings, Cautions and Notes
WARNINGS ARE USED IN THIS MANUAL TO INDICATE POTENTIALLY HAZARDOUS SITUATIONS
WHICH COULD RESULT IN SERIOUS INJURY OR DEATH.
CAUTIONS ARE USED IN THIS MANUAL TO INDICATE POTENTIALLY HAZARDOUS SITUATIONS
WHICH COULD RESULT IN EQUIPMENT DAMAGE OR LOSS OF DATA.
NOTES ARE USED IN THIS MANUAL TO INDICATE SUPPLEMENTARY INFORMATION THAT IS NOT
HAZARD RELATED.
1.2 Safety information
WARNING: READ THE SAFETY INFORMATION IN THIS MANUAL BEFORE SERVICING THE AX60+.
WARNING: DO NOT TEST THE ALARM WHEN IT IS CLOSE TO THE EARS. IT HAS A HIGH VOLUME
SOUNDER WITH A SOUND LEVEL OF 88 DECIBELS AT A DISTANCE OF 3 METRES.
WARNING: DO NOT TEST THE ALARM WHEN IT IS CLOSE TO THE EYES. IT HAS A HIGH VISIBILITY
STROBE LIGHT WITH A LUMINOUS INTENSITY OF 100 CANDELA.
WARNING: DO NOT OPEN THE CENTRAL DISPLAY, SENSORS OR ALARMS IF THEY ARE CONNECTED
TO THE POWER SUPPLY. FIRST DISCONNECT AND ISOLATE THEM FROM LIVE HAZARDOUS
VOLTAGE.
1.3 Other information
NOTE: THE DATA OUTPUT MODULE DOES NOT REQUIRE ANY ON-SITE SERVICING, HOWEVER,
THE DATA OUTPUT MODULE DOES CHECK FOR A NUMBER OF FAULT CONDITIONS, SEE SECTION
11.2 FOR DETAILS ON FAULT INDICATIONS

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1.4 Alarm terminology (CO2)
Alarms will display in priority order, in the order of AL4 to TWA
Display name for
users
Alarm description
Identification by
software
Default
setpoint
Notes
TWA
Time weighted
average over 8
hours
Alarm 1 or A1
0.5% CO2
Fixed alarm. At present it is not possible to
change a TWA alarm set-point.
AL1
High
alarm
Alarm 2 or A2
1.5% CO2
This alarm must be set lower than Alarm 3
(it may be set to 0.5% to give a pre-alarm
condition).
CO2
High-high alarm
Alarm 3 or A3
3.0% CO2
This alarm must be set higher than Alarm
2.
AL4
High-high alarm
Alarm 4 or A4
3.5% CO2
Alarm is disabled by default.
•The time-weighted average alarm is displayed to users as ‘TWA’ and identified by the software as ‘A1’ or
‘Alarm 1’and is announced by the Central Display only.
•The high alarm is displayed to users as ‘AL1’ and identified by the software as ‘A2’ or ‘Alarm 2’and triggers
the Alarm strobe once every 2 seconds, sounder is disabled by default, but if enabled by the user it will also
sound once every 2 seconds.
•The high-high alarm is displayed to users as ‘CO2’ and identified by the software as ‘A3’ or ‘Alarm 3’and
triggers the Alarm strobe/sounder once every second.
•The fourth alarm level ‘AL4’ is disabled by default; this is identified by the software as ‘A4’ or ‘Alarm 4’. If
enabled the Alarm strobe and sounder would trigger once every second.
1.5 Alarm terminology (O2)
Alarms will display in priority order, in the order of AL4 to AL1
Display name for
users
Alarm description
Identification by
software
Default
setpoint
Notes
AL1
Low
alarm
Alarm 1 or A1
19.5% O2
Alarm is disabled by default.
AL2
Low
alarm
Alarm 2 or A2
19.5% O2
This alarm must be set lower than Alarm 3.
AL3
High-high alarm
Alarm 3 or A3
23.0% O2
This alarm must be set higher than Alarm
2.
AL4
Low-low
alarm
Alarm 4 or A4
18.0% O2
This alarm must be set lower than Alarm 2.
•The first low or high alarm ‘AL1’AL1is disabled by default; this is identified by the software as ‘A1’ or ‘Alarm
1’. If enabled the Alarm strobe and sounder would trigger once every 2 seconds.
•The low-level alarm is displayed to users as ‘AL2’ and identified by the software as ‘A2’ or ‘Alarm 2’and
triggers the Alarm strobe once every 2 seconds, sounder is disabled by default, but if enabled by the user it
will also sound once every 2 seconds.
•The high-high alarm is displayed to users as ‘AL3’ and identified by the software as ‘A3’ or ‘Alarm 3’and
triggers the Alarm strobe/sounder once every second.
•The low-low alarm is displayed to users as ‘AL4’ and identified by the software as ‘A4’ or ‘Alarm 4’and
triggers the Alarm strobe/sounder once every second.

Ax60+ Multi-Gas
Service Manual Int. Approved
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Commercial in Confidence
2Configuring sensors
2.1 Hardware setting
In a standard Ax60+ system (not including the Kiosk option) each sensor must have its jumper link set to a different
location e.g. Sensor 1=location 1; Sensor 2=location 2.
The Sensor has a hardware setting that is factory configured for a system with only one Sensor. If a system includes two,
three, or four Sensors then the hardware must be reconfigured by moving a jumper link ( ) in each Sensor installed
in the system.
WARNING: DISCONNECT AND ISOLATE THE AX60+ SYSTEM FROM THE MAINS POWER SUPPLY
BEFORE OPENING THE CO2SENSOR ENCLOSURES.
To access the jumper link, open the Sensor enclosure. The printed circuit board (PCB) has a SENSOR LOCATION selector
with one link, factory installed in LOCATION 1.
The image to the right shows the jumper link in position
1 (Factory default).
For a system with only one Sensor, the jumper link
should be retained in LOCATION 1.
For a system with two Sensors, the first Sensor’s
jumper link should be in LOCATION 1 and the second
Sensor’s link in LOCATION 2.
For a system with three Sensors, the first Sensor’s link
should be in LOCATION 1, the second Sensor’s link in
LOCATION 2 and the third Sensor’s link should be in
LOCATIONLOCATION 3.
For a system with four Sensors, the first Sensor’s
jumper link should be in LOCATION 1, the second
Sensor’s link in LOCATION 2, the third Sensor’s link in
LOCATION 3 and the fourth Sensor’s link should be in
LOCATION 4.

Ax60+ Multi-Gas
Service Manual Int. Approved
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3Software Overview
NOTE: THIS SECTION SPECIFICALLY RELATES TO THE AX60+ STANDARD OPTIONS, HW AND
QC. HOWEVER, A CENTRAL DISPLAY CAN BE TEMPORARILY CONNECTED TO THE AX60+ KIOSK
SENSOR TO ENABLE A SERVICE ENGINEER TO RECONFIGURE THE SYSTEM (SEE SECTION 10).
3.1 Powering up
When you power up the Ax60+, the software performs an automatic power-on-self-test (POST) which takes about 30
seconds. The results are shown on the Central Display.
Operator input
Software response
Central Display text
Optional text / notes
Switch on power
supply to Ax60+
Displays vendor name and
website (default is Analox Ltd)
Vendor name may vary,
depending on contract

No further operator
input is required.
The POST is an
automatic process
Performs a checksum
configuration check

Performs a software validation
check

Checks the Sensor(s) have been
calibrated

No sensors are configured
Confirms top line of LCD OK, no
pixels are missing

Confirms bottom line of LCD
OK, no pixels missing

Confirms buzzer is off and
green LED switches on

Confirms green LED is off and
yellow switches on


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Service Manual Int. Approved
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Operator input
Software response
Central Display text
Optional text / notes
Confirms yellow LED is off and
red switches on

Confirms red LED is off and
buzzer switches on

Displays current software.
Buzzer switches off

Displays unique serial number
of the unit

Wait for Sensors to
warm up…
This screen may display for a
few seconds to show Sensor
warm-up status. It is for
information only. It requires
no operator input

CAUTION: EACH SENSOR MUST HAVE ITS JUMPER SET TO A DIFFERENT LOCATION (E.G. SENSOR 1
= LOCATION 1; SENSOR 2 = LOCATION 2), OTHERWISE THE CENTRAL DISPLAY WILL ANNOUNCE A
FAULT.REFER TO SECTION 2 FOR JUMPER SETTINGS INFORMATION.

Wait for system
status screen...
Displays system status screen.
Each Sensor is represented by
‘OK’ in the top line. For
In this example - The CO2
concentration is by default
displayed in ppm (parts per

Ax60+ Multi-Gas
Service Manual Int. Approved
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Copyright © 2015 Analox Ltd. All Rights Reserved.
Commercial in Confidence
Operator input
Software response
Central Display text
Optional text / notes
example, a system with two CO2
Sensors displays >OK OK. The
‘>’ character identifies which
Sensor is highlighted (Sensor 1
is highlighted by default)
million). The example shown
here displays 450 PPM, which
is equal to 0.045%.
NOTE: THE SYSTEM STATUS SCREEN DISPLAYS UP TO FOUR SENSORS. A SPARE
SENSOR LOCATION DISPLAYS AS: ‘- - -’
The bottom line displays the
concentration of measured gas
at the Sensor

Press Cycle
Displays Sensor 2 details (if
installed) and the current level
of measured gas
In this example, Sensor 2 is
not installed

Press Cycle
Displays Sensor 3 details (if
installed) and the current level
of measured gas
In this example, Sensor 3 is
not installed

Press Cycle
Displays Sensor 4 details (if
installed) and the current level
of measured gas
In this example, Sensor 4 is
not installed

Press Cycle
Redisplays the system status
screen