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DOC0935 (26 July 2022 12:02) 

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Figure 3: Purge inlet and outlet locations on ASM0627-10-Z-Cx-Ex-Gx-D3x 

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  [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 dual flying leads for communication that 
are  permanently  connected  through  cable  glands.  You  must  ensure  that  the  cables  are 

Summary of Contents for IRmadillo

Page 1: ...26 July 2022 12 02 DOC0935 IRmadillo User Manual ASM0627 10 Z Cx Ex Gx D3x www keit co uk support keit co uk...

Page 2: ...he internal controller 8 2 4 Checking for warnings and checking the probe is clean 10 2 4 1 Cleaning instructions 10 2 4 2 Recognising if the probe is clean 11 2 5 Taking a background 12 2 6 Installat...

Page 3: ...fety 26 5 3 2 Installation 27 5 3 3 Maintenance 29 5 4 Port tube ASM1487 29 5 4 1 Safety 30 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...

Page 4: ...amage 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...

Page 5: ...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 dus...

Page 6: ...ion 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 th...

Page 7: ...rds WARNING Failure to properly earth the spectrometer may cause serious injury or death Figure 2 Earthing point for ASM0627 10 Z Cx Ex Gx D3x 2 2 Purging the IRmadillo The IRmadillo spectrometer is d...

Page 8: ...urge 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 conn...

Page 9: ...ion Standard RJ45 connectors can simply be plugged in but an IP rating cannot be guaranteed Figure 4 CNLinko LP16 RJ45 Plug Figure 5 CNLinko LP16 RJ45 socket 2 3 1 Connecting to the internal controlle...

Page 10: ...u require frequent access we recommend saving a convenient shortcut to this program You should be greeted with a window that looks like this Click Show Options Figure 6 Remote Desktop Connection start...

Page 11: ...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...

Page 12: ...maintain a relatively flat line with no consistently repeating peaks Cleaning Mode can be used to see the effects of the cleaning process in real time see DOC0893 KeitSpec Software User Manual Sectio...

Page 13: ...a background spectrum also called a reference or baseline scan before any absorption scans can be performed This must be performed before the probe is inserted into the reaction process of interest Th...

Page 14: ...along the probe s axis It is preferable to mount the IRmadillo with the probe positioned horizontally Mounting the IRmadillo with the probe pointing downwards risks the formation of bubbles on the ATR...

Page 15: ...United Kingdom Telephone number 44 0 1235 431260 Support email support keit co uk 3 2 Maintenance support programme MSP The MSP is for those customers who purchase an IRmadillo and want the assurance...

Page 16: ...hemometric models to give incorrect results unless the model uses an appropriate pre treatment to remove the effect Any model built by Keit will have this taken into account 3 3 2 Emitter ageing Figur...

Page 17: ...th data remotely to determine if any servicing needs to be carried out This includes review of internal diagnostics for warnings and errors component performance for signs of premature ageing and eval...

Page 18: ...label specifies the model of instrument with permissible environmental and analyte operating conditions along with applicable certification Particular attention should be given to the rated pressure...

Page 19: ...e instrument F Purge inlet The spectrometer purge inlet is used to purge both the spectrometer body and the probe at the same time through a single connection The connection is a Legris push fit fitti...

Page 20: ...m administrator privileges and a second standard user The standard user account starts automatically and is the default account for the KeitSpec software application The system administrator account i...

Page 21: ...tile substances it is recommended to keep the plugging cap in place during use Figure 17 Sample cell fitted to IRmadillo probe 5 1 1 Maintenance Inspect the O ring regularly and replace if it has visu...

Page 22: ...analysis of your process The flow cell is fitted with two NPT ports on opposing sides in order to accommodate a high flow rate offshoot pipe from the main process passing the liquid in front of the A...

Page 23: ...w flow cell is a 0 8ml vessel that can be secured to the end of the probe for continuous analysis of your process The flow cell is fitted with two NPT ports on opposing sides for attaching pipelines I...

Page 24: ...e Refer to IRmadillo product label Analyte Temperature Refer to IRmadillo product label Body Material Corrosion resistant metal O ring Seal FFKM Kalrez Port Size 1 4 tubing Cell Internal Volume 0 8 ml...

Page 25: ...ve on the probe at the rear of the flow cell these are held in place by two screws The flow cell can be rotated through 360 to accommodate the user s installation Figure 20 Tri port flow cell fitted t...

Page 26: ...uch loads increase the likelihood of leakage and could cause the spectral performance of the instrument to become inconsistent 5 2 5 Maintenance Inspect the O ring regularly and replace if it appears...

Page 27: ...form a seal with the process pipework and as such are safety critical to prevent an accidental discharge of the process media Keit recommends regular inspection of the integrity of the welds on the f...

Page 28: ...the process pipework The gasket material must be chosen to be compatible with the pressure and temperature range of the process media and must be chemically compatible WARNING Choice of gasket materia...

Page 29: ...s aligned with the port fit appropriate bolts as specified in the relevant standard and tighten in stages in the order shown below Figure 23 Front view of lap joint flange hub and bolt holes Tighten b...

Page 30: ...ss steel Care should be exercised to ensure that it is not corroded by aggressive chemicals during maintenance or installation 5 4 Port tube ASM1487 The port tube is an accessory that can be secured t...

Page 31: ...using an O ring in the narrower O ring groove If the IRmadillo is not going to be installed into the pipe immediately the blanking plug can be positioned with the grooved side aligning with the rear o...

Page 32: ...process media Keit recommends regular inspection of the integrity of the welds on the front and rear in line with local safety procedures CAUTION The spectrometer weighs 18kg The flange must not be us...

Page 33: ...actured from Hastelloy which is resistant to many aggressive chemicals However you are advised to check with Keit before installing on a new process Before beginning installation ensure that the gaske...

Page 34: ...lap joint flange may be manufactured from Hastelloy or stainless steel Care should be exercised to ensure that it is not corroded by aggressive chemicals during maintenance or installation 5 6 Cradle...

Page 35: ...Refer to IRmadillo product label Probe Body Material Hastelloy C276 port flange Material Hastelloy C276 Gasket Material Customer supplied Material must be to specification of standard ANSI B16 21 or E...

Page 36: ...Keit recommends regular inspection of the integrity of the welds on the front and rear in line with local safety procedures Inspection of the sealing weld will require removal of the flange and spect...

Page 37: ...o uk To install the inclined stand to the instrument carefully roll the spectrometer over such that the mounting holes are pointed upward the instrument should be disconnected from power coms and purg...

Page 38: ...t Keit It is important to follow these instructions completely to ensure safe use of the Ingold probe Figure 28 IRmadillo fitted with an Ingold probe 5 8 1 Safety WARNING The O ring and nut form a sea...

Page 39: ...Hastelloy C276 Port Size DN40 Ingold port Port Material 1 4435 acc to BN2 and 316L acc to ASME BPE table DT3 5 8 2 Installation Support the spectrometer on a suitable mounting frame that aligns the pr...

Page 40: ...that doesn t disappear with longer sampling times Background scan taken with insufficient averaging Experiment with increased background scan acquisition time Negative peaks in spectrum Background sc...

Page 41: ...lution Unrepeatable measurements Damage to ATR element Contact Keit Contamination of ATR element Clean the probe See Section 2 4 Checking for warnings and checking the probe is clean Dip probe misalig...

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