Keit IRmadillo ASM0627-09-Z-Cx-O-G-D2x User manual

22 August 2022 15:28
DOC0945 IRmadillo User Manual
ASM0627-09-Z-Cx-O-G-D2x
ASM0627-09-Z-Cx-O-G-D3x
www.keit.co.uk
[email protected]

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Table of Contents
1. Safety ............................................................................................................................3
1.1. General safety ........................................................................................................3
1.2. Lifting instructions...................................................................................................3
1.3. Electrical safety.......................................................................................................3
1.4. Pressure and temperature limits .............................................................................3
1.5. Operating environment limits ..................................................................................4
2. How to Power, Purge and Connect the IRmadillo...........................................................5
2.1. Powering the IRmadillo...........................................................................................5
2.1.1. Uninterruptible power supply (UPS).................................................................5
2.1.2. Power cable.....................................................................................................5
2.2. Purging the IRmadillo..............................................................................................6
2.3. How to connect data communications.....................................................................7
2.3.1. Connecting the fibre data communication cable to the controller......................8
2.4. Checking for warnings and checking the probe is clean..........................................9
2.4.1. Cleaning instructions........................................................................................9
2.4.2. Recognising if the probe is clean ...................................................................10
2.5. Taking a background ............................................................................................11
2.6. Installation best practice........................................................................................11
3. Maintenance................................................................................................................13
3.1. Service and support contacts................................................................................13
3.2. Maintenance & support programme (MSP)...........................................................13
3.3. Spectrum health....................................................................................................13
3.3.1. Use at high temperature ................................................................................14
3.3.2. Emitter ageing................................................................................................14
3.4. Remote health check............................................................................................15
3.5. Cleaning the fibre optic data cable connectors......................................................15
3.5.1. Cleaning the Souriau fibre-optic connectors...................................................15
4. Components ................................................................................................................18
4.1. IRmadillo spectrometer.........................................................................................18
4.2. Controller specifications........................................................................................20
4.3. Storage conditions................................................................................................20
5. Accessories .................................................................................................................21
5.1. Sample cell - ASM1398 ........................................................................................21
5.1.1. Maintenance..................................................................................................21
5.1.2. Cleaning ........................................................................................................21
5.2. Flow cell................................................................................................................22

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5.2.1. High flow cell - ASM1396...............................................................................22
5.2.2. Low flow cell - ASM1222................................................................................23
5.2.3. Tri-port flow cell - ASM1101...........................................................................24
5.2.4. Safety............................................................................................................25
5.2.5. Maintenance..................................................................................................25
5.2.6. Cleaning ........................................................................................................25
5.3. Flanged probe.......................................................................................................26
5.3.1. Safety............................................................................................................26
5.3.2. Installation .....................................................................................................27
5.3.3. Maintenance..................................................................................................28
5.4. Port tube - ASM1487 ............................................................................................29
5.4.1. Safety............................................................................................................29
5.4.2. Installation .....................................................................................................30
5.5. Port Flange - ASM1486 ........................................................................................30
5.5.1. Safety............................................................................................................31
5.5.2. Installation .....................................................................................................32
5.5.3. Maintenance..................................................................................................32
5.6. Cradle - ASM1453 ................................................................................................33
5.6.1. Safety............................................................................................................33
5.6.2. Installation .....................................................................................................34
5.6.3. Maintenance..................................................................................................34
5.7. Inclined Stand - ASM0916 ....................................................................................35
5.7.1. Safety............................................................................................................35
5.7.2. Installation .....................................................................................................35
5.8. Ingold DN40..........................................................................................................36
5.8.1. Safety............................................................................................................36
5.8.2. Installation .....................................................................................................37
6. Troubleshooting...........................................................................................................38
Appendix 1: Controller Specifications..................................................................................40

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1. SAFETY
“WARNING” refers to situations that could result in personal injury.
“CAUTION” refers to situations that could result in equipment damage.
Failure to follow the requirements below may lead to dangerous situations.
1.1. General safety
WARNING
The spectrometer weighs ~18 kg; handle with care
CAUTION
Do not operate outside the range of environmental or analyte
conditions specified on the product label
CAUTION
The probe is NOT a carry handle
CAUTION
Do not open the spectrometer; it contains no user-serviceable
parts
1.2. Lifting instructions
Lift the device using the lip around the lid or with hands underneath the base. Do not use the
probe as a carry handle; this could cause damage. Users should risk assess manual handling
and use lifting equipment if necessary.
1.3. Electrical safety
WARNING
The electrical mains cable must be earthed and should include
a 5A fuse with a means of isolating both live and neutral; obey
local electrical safety codes
WARNING
An additional earth connection is provided on the enclosure
chassis using an M6 screw; use if required by local codes
WARNING
Never disconnect the mains power connector when energised
CAUTION
Residual current protection or ground fault interrupter devices
are recommended
1.4. Pressure and temperature limits
The maximum pressure and temperature (ambient and analyte) limits for the device vary
depending on the model and mechanical interface. Refer to the product label to confirm the
limits.
Do not exceed the pressure limits on the product label as this could be dangerous and will
invalidate the warranty. If in doubt, contact Keit for advice before installing the spectrometer.

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1.5. Operating environment limits
The spectrometer is thermally stabilised and designed to operate indoors or outdoors under a
variety of conditions and environments. Avoiding exposure to direct sunlight will help maintain
this thermal stability.
Table 1 –Atmospheric requirements for electrical safety
Parameters
Value
Units
Pollution degree of intended environment
4
Maximum installation altitude
3000
metres
Pollution degree of the environment refers to the level of contamination that the exterior of the
device can cope with. Pollution degree 4 means that continuous conductivity from conductive
dust, rain or other wet conditions will not cause electrical safety to be compromised.
Consideration should also be given to ventilation of the surrounding area when the system is
being purged.
CAUTION
Purging the device with dry nitrogen is recommended for
optimum performance (Note: maximum inlet pressure of 1 barg
with a flow rate 0.5 to 2 litre/min).
WARNING
When purging with nitrogen, ensure there is adequate
ventilation to prevent asphyxiation; an oxygen sensor is
recommended.

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2. HOW TO POWER, PURGE AND CONNECT THE IRMADILLO
2.1. Powering the IRmadillo
NOTE
See Section 1 Safety prior to attempting installation.
The spectrometer is normally supplied with a blunt-cut mains cable to be wired into your
electrical supply. The instrument requires single-phase mains input and must be connected to
a permanent earth (grounding) connection. A 5A fuse should be fitted in the live/hot supply
connection.
The power supply needs to be fitted with a means of isolating both live and neutral by fitting a
disconnecting switch or using a suitable circuit breaker that meets the requirements of IEC
60947-1 and IEC 60947-3. The switch must be located within easy reach of the instrument
and must be marked as the disconnection devicefor the equipment. The disconnection device
must not interrupt the earth connection.
The spectrometer is designed to operate over a wide range of voltages shown below in Table
2 - IRmadillo power specifications. If you plan to operate the spectrometer outside of these
ranges, contact Keit for advice before powering up the instrument.
Table 2 - IRmadillo power specifications
Parameters
Value
Units
AC input voltage
100-240
V
AC input frequency
50/60
Hz
Mains supply fluctuations (% of
Nominal Value)
±10
%
Power consumption
110 (max)
W
Overvoltage Category
CAT II
2.1.1. Uninterruptible power supply (UPS)
To ensure a reliable supply of power to the IRmadillo, we strongly recommend use of an
uninterruptible power supply (UPS). Contact [email protected] for further information.
If you are unable to use a UPS, you may find that the system fails to start correctly following
a power cut. In this situation, Keit recommends power cycling first the IRmadillo and then the
controller.
2.1.2. Power cable
The power cable for the IRmadillo is a permanently connected flying lead passed through a
cable gland; this is located at the rear of the spectrometer. The gland and cable must be
sufficiently protected from loading and twisting. The cable should ideally be routed above
ground to avoid accidental damage.

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Figure 1: Power and communication gland locations
The spectrometer body has an M6 earth attachment point below the probe. This can be used
where local codes require it in addition to earthing through the power supply cable. Please
identify and adhere to any applicable local standards.
WARNING
Failure to properly earth the spectrometer may cause serious
injury or death.
Figure 2: Earthing point for ASM0627-09
2.2. Purging the IRmadillo
The IRmadillo spectrometer is designed to be continuously purged. This eliminates any
interference in operationcaused by changing levels of water vapour and carbon dioxide (CO2)
within the instrument, both of which interact strongly with infrared (IR) light.
The IRmadillo is fitted with a single body purge inlet and a breather in the probe. The Inlet is
shipped with a blanking plug that needs to be removed before use.

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Figure 3: Purge inlet and outlet locations on ASM0627-09
The ideal purge gas is dry nitrogen. Alternatively, dry air from a purge gas generator can be
used. The output from this purge gas generator should have a minimum quality according to
ISO8573-1:2010 of Class 1:2:1 (dust:water:oil) or better. Keit can recommend suitable
generators that achieve this outlet air quality; contact suppo[email protected]. Purge gas
generators may include an internal compressor or use factory-supplied compressed air with a
minimum quality of Class 4:4:4 (dust:water:oil).
NOTE
All FTIR spectrometers are very sensitive to water vapour and
carbon dioxide. Even in well-controlled environments, e.g.,
laboratories, environmental changes can be large enough to
cause significant changes in the spectrum. We STRONGLY
recommend purging the instrument at all times.
To purge the instrument:
•Remove the blanking plug from the gas purge inlet on the instrument; this is a push fit
connector.
•Connect a 4mm diameter gas hose to the purge inlet port.
•Ensure the gas tube is connected to a suitable gas supply via a flow meter.
•Adjust the total flow to 0.5 - 2 litres per minute (The pressure drop through the unit is
<1 barg).
•Do not turn off the purge during normal operation; this will impact the instrument’s
performance.
•If the purge tubing is disconnected, the blanking plug must be fitted to the inlet
connection on the probe to maintain the IP rating and exclude dust.
The IRmadillo requires a stabilisation period of >12 hours once powered on and purging
started. This is to allow the internal components to reach a stable temperature and complete
purging. Once fully purged the instrument is very robust against changes in ambient
conditions, provided the purge gas supply is maintained.
2.3. How to connect data communications
Like the power cable, the IRmadillo is supplied with a permanently connected flying lead for
communication that is passed through a cable gland. You must ensure that the cables are

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sufficiently protected from loading and twisting. The cable should ideally be routed above
ground to avoid accidental damage.
NOTE
Ensure the mains and data communication cable connectors
are dry prior to mating.
NOTE
Keep the dust caps fitted on connectors when not in use.
Never leave an exposed connector.
The communications flying lead provided with ASM0627-09-Z is a fibre data communications
cable terminated in a Souriau UTS-LC in-line plug (see Appendix 1: Controller Specifications.
This mates with the in-line socket fitted on the supplied extension cable. Ensure the key on
the plug align with the keyways in the connector and rotate the shell to complete the
connection.
Figure 4: Souriau in-line plug
Figure 5: Souriau in-line socket
2.3.1. Connecting the fibre data communication cable to the controller
•Remove the dust cap from the data communication cable.
•Carefully match up the data communication cable with the corresponding port on the
back of the controller.
•Tighten the locking nut. This will make a secure connection.
•Check that the green and orange lights on the controller are present (see image).
•
Figure 6: Front panel of Keit controller
NOTE
Protect the data communication fibre from stress and tight
bends (< 80mm bend radius not allowed!). Tight bends cause
a stress at the glass surface and increase the probability of
fracture.

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2.4. Checking for warnings and checking the probe is clean
When you have connected to the powered-on IRmadillo the KeitSpec application should load
automatically. It is important to confirm that the system is working without errors: information
on IRmadillo warnings and errors can be found in DOC0893 KeitSpec Software User Manual,
section 1, Getting Started.
Once the system is set up without errors, the probe tip must be cleaned, and a background
spectrum must be taken before insertion into the vessel or pipe. If the probe is guaranteed
clean the factory background scan shipped with the instrument –and saved to the desktop of
the controller –can be used. Cleanliness of the probe tip is important to performance; if you
suspect fouling or scale build-up, perform a clean appropriate to your environment.
2.4.1. Cleaning instructions
Rinse the ATR element with a suitable solvent. The choice of solvent will depend on your
process. You may fully immerse the ATR in solvent if needed. The following are suitable:
•Water
•Acetone
•Alcohols
•Surfactant solutions
•Alkanes (hexane, cyclohexane etc…)
•Ethers
Once exposed to a suitable solvent, wipe the ATR with a clean cloth. The metal tube of the
probe can also be cleaned by wiping with a cloth.
For hard-to-remove fouling (such as biofilms or dried-on chemicals) Keit recommends an
oxidative acid clean. First, clean the ATR using the methods outlined above, then perform the
following:
•Place the PTFE sample cell on the end of the probe and fill with ~4ml of 1 M nitric acid
solution
•Leave to soak for 1 hr
•Carefully remove the acid using a pipette and fill the sample cell with water
•Remove the water using a pipette
•Remove the sample cell and rinse the ATR again with water
•Carefully wipe the ATR with a cloth
It may be necessary to repeat the cleaning steps again if the contaminant has only been
partially removed.
In some cases, it may be necessary to perform an alkali clean on the probe. First clean the
ATR using the methods outline above, then perform the following:
•Place the PTFE sample cell on the end of the probe and fill with ~4ml of 1 M sodium
hydroxide solution
•Leave to soak for 1 hr
•Carefully remove the alkali using a pipette and fill the sample cell with water
•Remove the water using a pipette
•Remove the sample cell and rinse the ATR again with water
•Carefully wipe the ATR with a cloth
It may be necessary to repeat the cleaning steps again if the contaminant has only been
partially removed.