ANALOX Sub Aspida 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: [email protected]
Copyright © 2017 Analox Ltd. All Rights Reserved.
ADM, HBOT &
Sub Aspida
User Manual
Commercial in Confidence

ADM, HBOT & Sub Aspida
User Manual Int. Approved
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Copyright © 2017 Analox Ltd. All Rights Reserved.
Commercial in Confidence
List of Contents
1Safety information ......................................................................................................................................................... 3
2Package contents checklist......................................................................................................................................... 4
3Aspida devices overview............................................................................................................................................. 6
3.1 Aspida main features .......................................................................................................................................... 8
4Installation ........................................................................................................................................................................ 9
4.1 Installation of the Sub Aspida & HBOT Aspida.......................................................................................... 9
4.1 Installation of the ADM Aspida........................................................................................................................ 9
4.2 Gaining access to the ADM Aspida..............................................................................................................10
4.3 Battery installation.............................................................................................................................................11
4.4 Charging the Analox Aspida...........................................................................................................................12
5Operation........................................................................................................................................................................14
5.1 Button functions .................................................................................................................................................14
5.2 Switching the device on/off ............................................................................................................................14
5.3 User registration .................................................................................................................................................14
5.4 The main display.................................................................................................................................................15
5.5 Screen saver.........................................................................................................................................................15
5.6 Battery status ......................................................................................................................................................16
5.7 Menus.....................................................................................................................................................................16
5.8 Common menu items........................................................................................................................................17
5.9 Gas alarms............................................................................................................................................................18
5.10 Global alarm options .........................................................................................................................................19
5.11 Alarm latching .....................................................................................................................................................19
5.12 Alarm muting.......................................................................................................................................................19
5.13 Quiet alarms.........................................................................................................................................................20
5.14 Data logging.........................................................................................................................................................21
5.15 Man-down alarm................................................................................................................................................21
5.16 Panic alarm...........................................................................................................................................................22
5.17 Time-weighted average (TWA) monitoring of carbon dioxide...........................................................22
5.18 Maintenance reminders....................................................................................................................................23
5.19 Calibration reminders........................................................................................................................................23
5.20 Sensor replacement reminders......................................................................................................................23
5.21 Faults......................................................................................................................................................................24
5.22 Troubleshooting..................................................................................................................................................24
6Maintenance ..................................................................................................................................................................25
6.1 Spares & accessories ........................................................................................................................................25
6.2 Calibration.............................................................................................................................................................26
6.3 Sensor calibration...............................................................................................................................................26
6.4 Oxygen sensor replacement...........................................................................................................................28
6.5 Cleaning.................................................................................................................................................................35
7Specifications ................................................................................................................................................................36
8Warranty information.................................................................................................................................................38
9Declaration of conformity..........................................................................................................................................39
10 Disposal......................................................................................................................................................................40
10.1 WEEE statement ................................................................................................................................................40
10.2 Oxygen sensor disposal...................................................................................................................................40

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1Safety information
WARNING: Read the safety information fully before using the aspida.
WARNING: Do NOT attempt to charge the batteries while the device is inside the hyperbaric
chamber.
High volume audible alarm
The Aspida employs high volume warning alarms with a sound pressure level at 1m of 95dB in the case
of normal gas alarms, and up to 110dB in the case of the man-down alarm.
As the man down sounder is disabled by default when supplied but may be user enabled, care should
be taken to minimise exposure to the sounder. The aspida unit should always be worn away from the
head in order to minimise close range exposure to the alarm.
WARNING: The 110dB man-down alarm can, when enabled, be manually activated at any
time by holding the button if the panic alarm is configured to be available. Care should be
taken not to activate this alarm when the Aspida unit is in close proximity to the ears.
WARNING: Do NOT exceed 2 bar/min atmospheric pressure change when using the HBOT
Aspida.
Electrochemical oxygen sensor
The oxygen sensor used in the Aspida is an electrochemical sensor which contains potassium
hydroxide. Under normal conditions the sensor is sealed. To prevent leakage, the unit must not be
exposed to temperatures outside the specified range, or be exposed to organic vapours, which may
cause physical damage to the body of the sensor. The unit must not be stored in areas containing
organic solvents or in flammable liquid stores.

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2Package contents checklist
Sub Aspida
a) Analox Aspida main unit
b) 2xAA rechargeable batteries
c) Wall mounting plate (Including fixing kit) or belt-clip attachment (only one supplied)
d) Charger power supply to suit
e) USB communication cable
f) Software disc
g) Quick start guide
h) Calibration adaptor
HBOT Aspida
a) Analox Aspida main unit
b) 2xAA rechargeable batteries
c) Wall mounting plate (Including fixing kit)
d) Charger power supply to suit
e) USB communication cable
f) Software disc
g) Quick start guide
h) Calibration adaptor
i) Test certificate

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ADM Aspida
a) ADM panel mount main unit
b) Universal charger/power supply (Including adaptors)
c) Quick start guide
d) Calibration adaptor (Including 300mm of tubing, single or dual)

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3Aspida devices overview
The Analox Aspida is a purpose designed compact portable gas monitor capable of continuous
monitoring of both carbon dioxide (CO2) and oxygen (O2).
Each instrument in the Aspida family gives clear audible and visible warning of potentially dangerous
gas levels. A high resolution Organic Light-Emitting Diode (OLED) display shows clear, live gas levels in
all light conditions.
The Analox Aspida is housed in a robust, IP65 splash proof enclosure. The instrument operates using
rechargeable battery technology, allowing it to run for more than 12 hours continuously between
charges. An Analox Aspida allows for easy replacement of the rechargeable batteries with standard,
AA type non-rechargeable batteries in circumstances where recharging is not possible.
Sub Aspida overview
The inclusion of a pressure sensor in the Sub Aspida provides accurate, pressure compensated O2 and
CO2 readings across 800 to 1200mbar pressure.
The inclusion of a belt clip attachment allows for secure and comfortable attachment of the Sub Aspida
to clothing for portable, personal protection.
Sub Aspida factory default settings
Parameter
Setting
O2 Alarms
%Vol Version
mbar ppO2versions
18%
19.5%
23%
180 mbar ppO2
195 mbar ppO2
230 mbar ppO2
CO2 Alarms
%Vol Version
mbar ppCO2versions
0.5%
1.5%
4%
0.5% TWA Alarm
5 mbar ppCO2
15 mbar ppCO2
40 mbar ppCO2
5 mbar ppCO2TWA Alarm
Alarm Latch State
Non-latching
Alarm Muting State
Mutable
Man-down State
Disabled
Logging Rate
30 seconds

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HBOT Aspida overview
Reinforcement of the unit allows for the HBOT Aspida to provide accurate, pressure compensated O2
and CO2 readings across an extended pressure range of 800 to 3000 mbar absolute.
HBOT Aspida factory default settings
Parameter
Setting
O2 Alarms
%Vol
mbar ppO2versions
18%
19.5%
23%
180 mbar ppO2
195 mbar ppO2
230 mbar ppO2
CO2 Alarms
%SEV
mbar ppCO2versions
0.5%
1.5%
4%
5 mbar ppCO2
15 mbar ppCO2
40 mbar ppCO2
5 mbar ppCO2TWA Alarm
Alarm Latch State
Non-latching
Alarm Muting State
Mutable
Man-down State
Disabled
Logging Rate
30 seconds
ADM Aspida overview
The ADM Aspida is a static panel system that offers continuous monitoring of O2, CO2or dual gas.
ADM Aspida factory default settings
Parameter
Setting
O2 Alarms
%Vol Version
18%
19.5%
23%
CO2 Alarms
%Vol Version
0.5%
1.5%
4%
Alarm Latch State
Non-latching
Alarm Muting State
Mutable
Man-down State
Disabled
Logging Rate
30 seconds

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3.1 Aspida main features
Figure 1 - Main features
1) Alarm, fault and OK indicators
2) Carbon dioxide gas port
3) Cancel/exit/panic-alarm button
4) Cycle button
5) Confirm/on/off button
6) Oxygen gas port (if sensor fitted)
7) OLED display
8) Horn
9) Belt loop mount point
10) Charger socket
11) USB communication socket
12) Battery compartments
13) Lanyard pin
14) Breather (pressure equalisation) hole –do not cover

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4Installation
4.1 Installation of the Sub Aspida & HBOT Aspida
Before using the Analox Sub or HBOT Aspida, batteries should be inserted into the instrument. If using
the rechargeable batteries provided, it should be given a full charge cycle. A full charge cycle will be
complete within approximately 4.5 hours.
4.1 Installation of the ADM Aspida
The ADM Aspida will come with the battery cover secured to the main unit and in turn secured to the
front panel.
The cutout required for the ADM Aspida is shown below.
Optional fixing kits are available from Analox, see spares and accessories list at section 6.1
To install the ADM Aspida into your panel place the captive nuts from the fixing kit through each of the
10mm diameter holes in the panel, then while securing the captive nuts screw in the M5 x 25mm Pozi
Pan screws from the fixing kit until the captive nut comes back on itself.

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Make sure that the pipework supplied with the ADM Aspida has been connected to your gas line and
the supplied 9V PSU’s DC jack is connected to the rear of the unit.
Remove the screws and align the ADM Aspida front panel mounting holes up with the captive nuts,
then re-insert the M5 x 25mm Pozi Pan screws through and tighten.
The diagram below shows the exploded view of the ADM installation.
4.2 Gaining access to the ADM Aspida
To gain access to the ADM Aspida for either USB connection or sensor change the following steps
should be followed.
Firstly remove the ADM Aspida from the instrument panel by removing the four M5 x 25mm Pozi Pan
screws.
Turning the ADM Aspida over, remove the two left most screws and washers from the tie bases.

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You should now be able to remove the Aspida main unit from the panel and be able to remove the
battery cover as described in section 0
4.3 Battery installation
The Analox Sub and HBOT Aspida’s are powered by a pair of standard AA batteries. The devices can
be powered using the NiMH re-chargeable batteries included in the product package or using a pair of
standard AA type non-rechargeable batteries.
The Analox ADM Aspida is powered by a universal mains adaptor, 90-264VAC to 9VDC, with a 2.1mm
x 5.5mm x 12mm DC jack plug –centre pin positive. Battery backup is available as an optional extra,
this can be supplied by Analox, see spares and accessories list at section 6.1
To gain access to the battery compartment, undo the screw in the centre of the battery cover on the
rear of the device and lift the cover off. Before removing batteries from the device, ensure that it is
switched off and that the mains charger and USB cable are disconnected.
Figure 2 - Battery compartment
1) Battery compartment access screw
2) Sensor compartment access screws
3) Battery compartments
WARNING: Care should be taken when inserting batteries, paying particular attention to the
orientation of each battery. Markings on the inside of the battery compartment indicate the
correct battery orientation. Incorrect orientation of the batteries may result in damage to the
device. Batteries should be inserted by hand without use of tools using reasonable force only.

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4.4 Charging the Analox Aspida
WARNING: The following safety warnings should be observed before attempting to charge
the Analox Aspida:
The Analox Aspida should only be charged when the NiMH batteries supplied with the
product are fitted. Attempting to recharge non-rechargeable alkaline batteries will in most
cases result in an aborted charge, and this will be indicated by a flashing icon on the
display. However, connecting the mains charger whilst using alkaline batteries is not
recommended and may result in damage to the device.
The Analox Aspida may be used with standard rechargeable AA type batteries which have
been charged using a third-party charging device. However, only NiMH batteries provided by
Analox should be used when attempting to charge batteries within the device using the mains
charger.
Do NOT attempt to charge the batteries in the HBOT Aspida while the device is inside the
hyperbaric chamber.
Do not attempt to charge the device using a mains charger other than the one supplied with
the device. Use of an incorrect mains charger may damage the device and invalidate the
warranty.
The battery cover should always be securely fitted before performing a charge.
•With the mains charger disconnected from the wall outlet, insert the power jack into the
socket on the rear of the Aspida device.
•Insert the mains charger into the wall outlet.
•Switch on the mains at the wall outlet.
NOTE: The unit can be charged whilst switched on or switched off.

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The following lists the conditions that may be observed during a charge.
Battery icon state
Audible warning
Charge status
>> (animated)
None
Charging (charge setup)
>> >> (animated)
None
Charging
>> (animated)
None
Charging
(approx. 1.5 hours remain)
Success beep
Charge complete
(flashing)
Fault beep
Charge fault
Batteries not rechargeable
Fault beep
No batteries
The normal charge period for a set of fully discharged batteries is approximately 4.5 hours.
WARNING: During charging, the device will warm up. This effect is normal. It is however
suggested that the device is charged indoors at room temperature to ensure a full charge cycle
completes.

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5Operation
5.1 Button functions
The Analox Aspida has three buttons that are used as follows:
Button
Function
•Power on/off
•Confirm
•Select button
•Show device menu
•Cycle through options
•Cancel
•Return to main screen
5.2 Switching the device on/off
To switch the Analox Aspida on, press the button.
After a few seconds, the main gas display screen will be shown. If multiple user-names are registered
to the device then the user-name selection screen will be shown instead. See the section ‘User
registration’for further instructions.
On start-up, the sensors have a short warm-up period. Live gas values will not be displayed until the
sensors have completed their warm-up. Typically, for oxygen, the warm-up takes 15 seconds and for
carbon dioxide, the warm-up takes 30 seconds. Sensor warm-up will be shown on the display.
To switch off the device, from the main display press and hold the button until the screen goes blank
then release the button.
To return to the main display from the menu system, press and release the button as required to exit
the menus
NOTE: The device cannot be turned off when powered from USB.
5.3 User registration
The Analox Aspida allows for registration of up to two usernames. This allows users to share use of the
device. On start-up, a username is selected, and all subsequent gas information is logged internally
against the selected user ID. Users can be registered to a device using the Aspida configuration
software. See the Aspida configuration software for instructions.
On device power up, if a single user is registered, the username will be displayed for a few seconds,
after which the device will operate normally.
If 2 users are registered, both usernames will be displayed in a menu for the user to select. Pressing the
button will cycle between highlighted usernames. The button will select the highlighted user.
NOTE: If a user is not selected within 2 minutes of start-up, a ‘no user’ ID will be selected automatically
and the device will proceed to run normally. During these two minutes, a reminder beep will be
sounded to prompt the user to select an ID.

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5.4 The main display
Under normal operation, gas values for each of the sensors fitted are shown in their own window along
with the description of the gas type and measurement units. The current gas value for each sensor will
be updated on the display once per second.
Figure 3 - Dual sensor display (left), single sensor display (right)
1) Man-down detection enabled icon
2) Clock
3) Measured gas types (dual sensor)
4) Measured gas values (dual sensor)
5) Measured gas units (dual sensor)
6) Quiet mode enabled icon
7) Atmospheric pressure (mBar)5
8) Battery status icon
9) Measured gas type (single sensor)
10) Measured gas value (single sensor)
11) Measured gas units (single sensor)
NOTE: The ADM Aspida does not include a pressure sensor, it has a fixed atmospheric pressure
reading of 1000 mbar. This value is displayed as above but will remain at 1000 mbar.
5.5 Screen saver
The screen saver function is intended to extend the battery life of an Aspida and reduce screen burn-in.
If the user does not operate any buttons for one minute then the screen saver, when enabled, will
automatically dim the display.
Pressing any button will wake the device from screen saver mode.
If the device is connected to the charger or connected to a PC via USB, the screensaver will not be
shown, but the display will still dim as normal.
During screen saver mode, gas values are still monitored as normal. Any gas alarm will wake the
display from screen saver immediately and the main gas display will be shown.
It is possible to enable/disable the screen saver option via the supplied PC software.
5
NOTE: For the ADM aspida the pressure reading is fixed at 1000 mbar.

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5.6 Battery status
The battery status icon is shown in the top right hand corner of the display. This icon gives a
representative indication of the power remaining in the batteries. As the batteries run down from full to
empty, the battery icon will be displayed in various states.
Icon
Battery status
,
Battery sufficiently charged
Battery low
(flashing)
Battery nearly empty. Approx. 1 hour of operation remaining. A
reminder beep will sound periodically.
The device is powered from the mains charger. The icon will be
shown next to the battery icon.
The device is attached to and powered by a computer via a USB
cable. The USB symbol will be shown instead of the battery icon
(in addition to, if charging).
NOTE: Due to the nature of the battery type, the battery status icon may temporarily indicate a capacity
higher than the true remaining battery capacity upon switch-on. This effect is usually seen in devices
which have been switched off for an extended period of time. The true battery status will be indicated
within a few minutes of power-up.
5.7 Menus
The device main menu can be accessed by pressing the button. This will display a menu screen
similar to the one shown below.
Figure 4 - A typical menu
NOTE: The menu icons displayed will vary depending on the configuration of the device and the sensor
fitted.
Press to cycle through the menu options and highlight the chosen option. If an arrow is present at
either end of the menu, it indicates that there are more options beyond the edges of the visible menu.
Advancing the menu cursor past the end of the visible menu will reveal the extra menu items.
Pressing the button when the chosen option is highlighted will select that option.
Pressing at any time whilst the menu is shown will return to the main gas display.

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5.8 Common menu items
Menu Icon
Function
Information - Selecting this menu item will display a screen with information
related to the specific device, such as serial number and firmware version.
Back - Selecting back exits the menu and returns to the main gas display.
Carbon dioxide calibration - (carbon dioxide configurations only) Select this
option to perform a calibration of the carbon dioxide sensor. This feature is
described in further detail in the section 6.3.
Oxygen calibration - (oxygen configurations only) Select this option to perform
a calibration of the oxygen sensor. This feature is described in further detail in
the section 6.3.
Carbon dioxide sensor information - (carbon dioxide configurations only).
This option displays a page which gives information about when the sensor is
next due a calibration.
Oxygen sensor information - (oxygen configurations only). This option
displays a page which gives information about when the sensor is next due a
calibration and also when replacement of the sensor is due.

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5.9 Gas alarms
The Analox Aspida has a range of configurable alarms to warn the user of potentially dangerous
atmospheres. For each gas sensor fitted to the device, up to 3 configurable alarms are available. In the
case of carbon dioxide, an extra time weighted average (TWA) alarm is provided. See section 5.17 for
more details.
In the case of an alarm condition being detected, the horn will activate giving an audible warning to the
user. At the same time, the red alarm indicators will flash.
The device also has a vibrating alert to accompany gas alarms. When an alarm is triggered the unit will
vibrate (vibration limited to 10 seconds when man down detection is enabled). The unit will not vibrate
whilst connected to USB or the charger.
A gas alarm condition will also be shown on the display, giving a clear indication of the gas that has
triggered the alarm. In the case of an alarm, the gas warning symbol will appear below the gas
reading which will be surrounded by a flashing border, as shown below.
Figure 5 - The main gas display showing that carbon dioxide levels have triggered an alarm
Each alarm is configurable as either high-going or low-going. In the case of a high going alarm, if the
gas value exceeds the configurable set-point, the alarm will be activated. The 3 gas alarms are also
ranked in order of priority, so that if a more dangerous level of gas is detected, the user is notified.
Example
Two low going alarms are normally configured for detection of low oxygen levels.
•Priority 1 alarm is configured as a low going alarm with a set-point of 18.0% or 180mBar.
•Priority 2 alarm is configured as a low going alarm with a set-point of 19.5% or 195mBar.
If using this setup the detected level of oxygen falls below 19.5%, priority 2 alarm will be activated.
The red indicators, vibration and horn will all activate, pulsing at a moderate rate, and a visual
warning will be given on screen. The oxygen value will be highlighted and the gas warning symbol
shown below the reading.
If the detected oxygen level falls further so that it is below 18.0%, priority 1 alarm will be activated.
This alarm is of a higher priority than the priority 2 alarm so the urgency of the alarm will be
increased. The indicators, vibration and horn will begin to pulse more rapidly to indicate that the
severity of the alarm has increased.
There is also normally a priority 3 alarm is configured as a high going oxygen alarm with a set-point of
23.0% or 230mBar