B&W Tek i-Raman Plus User manual

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i-Raman
®
Plus
Quick Start Guide
For full operating instructions please refer to the i-Raman
Plus portable system User Manual (290020245).

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Diagrams of the i-Raman Plus
Power/Laser
Emission Indicator
Collection Port
Laser Emission Port
Flip Cover
Trigger Port (for auto
collection function)

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Distance Regulator
Manual Shutter
Trigger Button
Shaft

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Hardware Installation
Connect probe to front panel.
Make sure FC connector to Laser Emission
Port is in key-in position
!
DO NOT push the connectors into the ports too hard – this will damage
the optics

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Pull off distance regulator for liquid
sample test with cuvette holder. Use BAC150 stage for solid and powder sample tests.

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Testing powder through a plastic bag.
Direct contact measurement
of pigments on a statue/wall.

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Connect Interlock
Align two red dots in one line. Gently push the plug
into the receptacle until you hear a “click” sound,
which suggests the locking finger is now locked into
the locking groove located inside the receptacle.

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Remove interlock.
Pull on the outer housing (NOT the cable or back
nut), which will cause the locking finger to
disengage from the locking groove, and the plug can
be removed. When the safety interlock plug is
removed from the system, all electrical power to the
laser will be turned off. The safety interlock MUST
be inserted before the laser can be turned on. Laser
emission will stop if the interlock is removed while
the laser is on.

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Software Startup
Please follow the user manual to
install BWSpec. When the
software is first opened set the
workspace to Raman.
Software Status Online

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Software Interface
Integration Time
Integration Time Unit
Multiplier
Time Average
Laser Power
Percentage
Scale Setting
Display Reset
ClearAll

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Laser On/Off Button Indicates laser is on
Acquire One Spectrum
Acquire Overlay
Acquire Continuously
Acquire Dark Scan (Laser shuts off automatically)

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Spectrum x-axis unit is set as “Raman Shift”.
Spectrum type is selected for display: “Raw Data” or “Dark
Subtracted” if dark scan is already taken.

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Before testing, please confirm:
Power supply is on
Interlock is plugged in
Laser key is switched on
Probe shutter is in open position
Software status is online

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Steps:
1. Set suitable integration time (generally thousands of milliseconds). Adjust it until the highest
peak is around 50000 counts.
2. Take dark scan, and then take additional scan of the sample. Be sure spectrum type is set to
“Dark Subtracted” if dark scan is applied.
3. Save data as .txt or .spc (as preferred).
Warning:
Be sure to wear laser goggles at all times and avoid looking into laser beam.
Turn off fluorescent lamp or any ambient light which would bring noise signals into spectrum.
Lower the laser power if sample is dark or thermo-unstable such as plastics and explosives.

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Strong Raman Signal Given:
Active Pharmaceutical Ingredients; Alcohols; Antibiotics; Antioxidants; Buffers; Coatings;
Dilutants; Emulsifiers; Excipients; Lubricants; Preservatives; Solvents; Vitamins; Monomers
and Polymers; Organic Materials; Polyatomic Inorganics (i.e. Calcium Phosphate, Sodium
Bicarbonate & Titanium Dioxide)
Weak Raman Signal Given:
Materials that are Dark in Color; Highly Fluorescing Molecules; Fillers/Binding Agents; Thin
Walled Plastics; Water; Glass
No Raman Signal Given:
Black Materials; Metals; Mono-atomic Ions