IRsweep IRis-F1 User manual

User Manual
IRis-F1 spectrometer
ASC/PSC variants

2nd edition, publication date September 2019
Copyright © 2019 by IRsweep AG
Laubisrütistrasse 44, 8712 Stäfa, Switzerland
All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any
form or by any means, including photocopying, recording, or other electronic or mechanical
methods, without the prior written permission of the publisher.

Table of Contents
1 Safety Instructions ..........................................................................................................................1
1.1 Instructions .............................................................................................................................1
1.2 Safety notes ............................................................................................................................1
1.3 Summary of possible hazards .................................................................................................2
1.4 Intended use ...........................................................................................................................3
1.5 Laser safety .............................................................................................................................3
1.6 Protective equipment .............................................................................................................4
1.7 Service contact........................................................................................................................4
2 General............................................................................................................................................5
2.1 IRis-F1 configurations..............................................................................................................5
2.2 IRis-F1 components.................................................................................................................5
2.2.1 Optical unit......................................................................................................................5
2.2.2 Laser module...................................................................................................................8
2.2.3 Electronic unit.................................................................................................................9
2.2.4 Control computer..........................................................................................................12
2.3 Optical beam path.................................................................................................................12
2.3.1 ASC variant....................................................................................................................12
2.3.2 PSC variant ....................................................................................................................13
2.3.3 Beam alignment............................................................................................................14
2.3.4 Sample compartment Accessories................................................................................14
3 Installation ....................................................................................................................................15
3.1 General information..............................................................................................................15
3.2 Contents of delivery..............................................................................................................15
3.3 Inspection of delivered goods...............................................................................................15
3.4 Transport of spectrometer....................................................................................................16
3.5 Installation requirements .....................................................................................................16
3.6 Connection of power supply.................................................................................................17
3.7 Connection of electronic cables............................................................................................17
3.8 Connection of ethernet cables..............................................................................................18
3.9 Connection of coolant cables................................................................................................19
3.10 Connection of purging ..........................................................................................................20
3.11 Connection of trigger (optional) ...........................................................................................20
3.12 Module placement and exchange.........................................................................................20
4 Operating Instructions ..................................................................................................................22
4.1 Before First Use.....................................................................................................................22

4.2 Control through the graphical user interface .......................................................................22
4.3 Turning the spectrometer on................................................................................................27
4.4 Turning the spectrometer off ...............................................................................................28
4.5 Carrying out a measurement ................................................................................................28
4.6 Command line interface........................................................................................................30
4.7 Data Transfer and Processing ...............................................................................................31
4.8 Use with accessories.............................................................................................................32
4.9 Misconfiguration and misuse................................................................................................32
5 Repair and maintenance...............................................................................................................34
5.1 General information..............................................................................................................34
5.2 Chiller fluid maintenance......................................................................................................34
5.3 Sample path re-alignment ....................................................................................................35
5.4 Reference path re-alignment................................................................................................36
5.5 Finding laser conditions ........................................................................................................37
5.6 Cleaning the spectrometer ...................................................................................................39
5.7 Software updates..................................................................................................................39
5.8 Troubleshooting and feedback to IRsweep ..........................................................................39
6 Technical specifications ................................................................................................................40
6.1 Spectrometer ........................................................................................................................40
6.2 Power supply.........................................................................................................................40
6.3 Purge gas supply ...................................................................................................................41
6.4 Environmental conditions for operation ..............................................................................41
7 Appendix .......................................................................................................................................42
7.1 Acquisition schemes..............................................................................................................42
7.2 Examples of laser states........................................................................................................42

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1Safety Instructions
1.1 Instructions
Read the following safety instructions carefully before putting the spectrometer into operation. Keep
this manual in a suitable place for future reference.
Always observe the instructions described in this manual to ensure user safety and to avoid property
damage. Improper use or failure to follow these safety instructions can result in serious injuries and/or
property damage. Any non-observance of the precautions will infringe the intended use (i.e.
performing spectroscopic measurements) of the spectrometer. In this case IRsweep AG will not
assume any liability.
It is the operator’s duty to plan and implement all necessary safety measures and to supervise their
observance. Moreover, the operator must ensure that the spectrometer is in proper functioning
condition. A safe and faultless operation can only be guaranteed if the spectrometer is transported,
stored, installed, operated and maintained properly according to the procedures described in this
manual.
Never remove or deactivate any supporting safety systems during spectrometer operation. Ensure
that objects and/or material not required for the measurement are out of the spectrometer operating
area.
The spectrometer complies with following norms:
•IEC 60825-1:2014, Safety of laser products
•IEC 61326-1:2012, Electrical equipment for measurement, control and laboratory use - EMC
requirements
•IEC 61010-1:2010, Safety requirements for electrical equipment for measurement, control,
and laboratory use
1.2 Safety notes
With regards to the degrees of hazard, safety notes are classified in this manual by signal words as
follows:
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious
(possibly irreversible) injury and major property damage.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious
(possibly irreversible) injury and major property damage.
CAUTION
Indicates a hazardous situation which, if not avoided, may result in minor or
moderate (reversible) injury.

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NOTE
Hazard, which could result in material damage if the appropriate safety instructions
are not observed
1.3 Summary of possible hazards
During installation, operation and maintenance of the spectrometer, different types of hazards can
occur. Following warning labels indicate different dangerous situations which may occur under
improper use of the equipment. Always refer to the manual for proper handling.
Warning symbol or label
Definition
This warning symbol indicates a general hazard. Refer to the
safety instructions and follow the precautions described to
avoid injury or property damage.
This warning symbol indicates an electrical hazard. The label is
located near live parts or on housing behind which are live parts.
Do not touch these parts. If maintenance work is needed, first
turn of the main power switch and unplug main power cable.
Ensure that all live parts do not come into contact with a
conductive substance. Failure to follow these instructions can
cause personal injury or property damage.
This warning symbol indicates a laser hazard. Refer to laser
safety instructions before putting product into operation.
This symbol indicates a connector that is used as a grounding
terminal. Be aware that an appropriate cable must be
connected for proper protective electrical grounding.
This warning label indicates an aperture from which visible and
invisible radiation is emitted. Always keep in mind position of
the beam when placing equipment or sample in the beam path.
This warning label is located on access panels. It indicates that
when the access panel is opened, user might be exposed to the
beam. Under normal use, the laser radiation is only accessible
when interlock is defeated.
All warning labels must be preserved legible. In case of damage or worn label, it must be immediately
replaced.

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1.4 Intended use
The spectrometer and its components should only be used according to the instructions described in
the manual or advised by IRsweep support. In case of accessories or components made by other
manufacturers and used in connection with the spectrometer, IRsweep does not assume any liability
for safe operation and proper functioning. If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
The spectrometer is intended for use in a laboratory under the environmental conditions specified in
chapter 6.
WARNING
Health hazard due to improper use of the spectrometer
A failure to follow instructions could result in injury and damage to the spectrometer.
In case of uncertainty, always contact IRsweep support before taking any actions.
1.5 Laser safety
The spectrometer is equipped with two mid-infrared semiconductor lasers. The lasers emit >500 mW
of optical power. According to IEC 60825-1:2014, the incorporated lasers are class 4 products.
The IRis-F1 spectrometer is classified as a class 3B product. This means, infrared radiation of up to
500 mW optical power is accessible to the user during operation or maintenance. It is the user’s
responsibility to operate the spectrometer in a laboratory that is suitable for class 3B laser products.
Please note that the infrared radiation is invisible. Therefore, take extra precautions when placing
accessories or samples into the laser beam path.
Accessible laser radiation has following properties:
•Maximum permissible exposure: 500 mW
•Wavelength range: 4 µm to 14 µm
•Beam divergence: 1 to 5 mrad
•Class 3B
In addition, a visible (red) laser pointer is incorporated in the device. This laser radiation has the
following properties:
•Maximum permissible exposure: 1.2 mW
•Wavelength: 635 nm
•Beam divergence: 0.6 mrad
•Class 3R
WARNING
Exposure to class 3B laser radiation can cause serious eye injury
Class 3B laser products can permanently harm eyesight if viewed directly. Avoid any
direct beam exposure to the eye. It is highly recommended to use appropriate
protective equipment. Always be aware of the beam location. Keep it away from
people’s eyes and watch out for reflected beams.
Be aware that there is a potential risk of exposure to laser radiation of laser class 4 in the following
cases:

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•Unauthorized removal of the metallic parts (housing)
•Damaged metallic parts (housing) or optics
If there is evidence or suspicion for such a case, immediately contact IRsweep support and refrain
from using the spectrometer.
WARNING
Exposure to class 4 laser radiation can cause serious eye injury and skin burns
Class 4 laser products can permanently harm eyesight and cause skin burns even from
scattered radiation. Avoid any eye or skin exposure to direct or scattered radiation.
1.6 Protective equipment
Use of laser protective eyewear is highly recommended for class 3B products. Therefore, we advise to
always use proper eyewear when operating the spectrometer, i.e. eyewear for infrared laser radiation
with an optical density of at least 3 in the operation range of the laser. In case of uncertainty, please
contact IRsweep support.
For the Phase Sensitive Configuration (PSC) variant of the IRis-F1, some optical components in the
maintenance region can be hazardous, depending on the exact configuration (e.g. wavelength).
Possible substances that user can get in contact with are:
•Zinc Selenide
•Barium Fluoride
Both are classified as class 6.1: poison. Always take precautions when working with or near these
substances, e.g. wear protective gloves. If an optical component is damaged or broken, first study the
safety regulations for the respective substance. In case of uncertainty, please contact IRsweep
support.
1.7 Service contact
In case you have questions about safety, installation, operation, repair, or maintenance of the
spectrometer please contact the IRsweep service desk via the following link:
•https://irsweep.com/support/
You can also use this portal to submit bug reports and feature requests. For very urgent enquiries
please call [phone].

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2General
2.1 IRis-F1 configurations
The IRis-F1 optical assembly is available in two distinct configurations:
The amplitude sensitive configuration is characterized by a superposition of the two frequency comb
lasers inside the laser module. Consequently, both frequency comb laser beams pass through the
sample compartment and are being absorbed by the sample. This leads to an increased amplitude of
the absorption signal and a corresponding improved signal to noise ratio.
The phase sensitive configuration is characterized by only one frequency comb laser beam passing
through the sample compartment. The sample beam is superimposed with the second frequency
comb beam after the sample compartment. While this configuration has a reduced sensitivity to
amplitude changes, it gives direct access to the optical phase shift induced by the sample. Thus, it
allows for concurrent measurement of the real and the imaginary part of the refractive index of the
sample. Additionally, the spectral resolution in the phase sensitive configuration is only limited by the
drift of the frequency comb laser line which is on the order of 1 MHz (equals to 3e-5 cm-1).
2.2 IRis-F1 components
This chapter provides an overview of all components and features of the spectrometer.
2.2.1 Optical unit
The optical unit is the core of IRis-F1. In this chapter, we show the top, front and back views of the
optical unit and explain all important features.
Figure 1: Top view of the optical unit

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Figure 1
Description
A
Sample compartment
B
Maintenance area
C
Laser module compartment
D
Service area
E, F
Access panels to maintenance area
G, H
Polarizer adjusters
The sample compartment (A) provides a space to manipulate the beam: accessories and samples
should be placed on the breadboard (M6 threaded holes). It is also possible to guide the beam out of
the sample compartment to a desired destination, and then back to sample compartment. The sample
compartment access panel can be entirely removed by loosening the two screws located at the back
of the sample compartment.
Maintenance area (B) contains two detectors and beam-steering optics. This area should be generally
accessed to adjust the beam alignment on the detectors. The access panels (E& F) provide an easy
way to work in the maintenance area.
WARNING
Possible exposure to toxic substances
In the phase-sensitive configuration (PSC), some optical components may contain
toxic substances. The polarizer contains Barium Fluoride and beam-splitters may
contain Zinc Selenide (based on wavelength configuration). Study relevant safety
regulations and always wear gloves when working in the maintenance area.
The sample compartment and access panels are secured with an interlock mechanism. This means
that when an access panel is opened, the beam will be blocked automatically. If maintenance work
with the laser beam is required, the interlock (a push-pull button) can be pulled out to override the
interlock mechanism. Every access panel is secured with two such interlocks, thus both of them need
to be pulled out in order to override the interlock (for each access panel). Every access panel also
contains a green LED that indicates the status of interlock. If the LED is on, the interlock mechanism is
disabled.
The laser module compartment (C) contains a bay for placing exchangeable laser modules. Different
laser modules can be used with the same optical unit, depending on the desired wavelength of the
laser radiation. More information on how to safely place and exchange laser modules can be found in
Chapter 3.
The service region (D) is not accessible to user and shall be only used by professional personnel.
Polarizers adjusters (G& H) can be used to control the laser radiation power by rotating the wheel.
For ASC, polarizer adjusters are located in the service region. The wheel Gadjusts the power on
reference path (detectors) and the wheel Hadjusts the power on sample path (detector). For PSC, the
polarizer adjuster H is instead located inside the maintenance region.

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Figure 2: Front view of the optical unit
Figure 2
Description
A
The sample compartment, depending on the variant of the IRis-F1, can have a
transparent glass window.
B
The four feet that support the weight of spectrometer.
C
The three LEDs indicate status of:
•Power: whether the mains power supply is ON (LED on means mains
power is ON)
•Lasers Enabled: whether the current to lasers is enabled and thus
possibly laser radiation is present in the optical unit (LED on means
current to lasers is enabled)
•Panels Interlock Disabled: indicates whether interlock mechanism is
override (LED on means the interlock is overridden)
D, E
The push-pull button interlocks that can be used to override the interlock
mechanism.
Figure 3: Back view of the optical unit

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Figure 3
Description
O1, O2
These connections are for the cooling fluid circuit. Connector O1 leads the coolant
back to the chiller; connector to O2 takes the coolant input from the chiller. The
coolant cools down detector chassis as well as the laser housing.
O3, O4
These connections are for purging the instrument with dry air or nitrogen gas. The
purging reduces the content of unwanted atmospheric interferents (e.g. water
vapor) inside the spectrometer. Both connectors should be used as inputs when
purging.
O5, O6
These connections are the high bandwidth detector outputs.
O7
This connection provides 12V mains supply to the spectrometer. It also provides
protective grounding for the metal housing.
O8
This connection driver current to the lasers.
O9
This connection provides reading of the temperature of the lasers
O10
This connections driver current to the Peltiers used to heat up and cool down the
lasers.
O11
This connection is a laser status indicator. It is open circuit when the lasers are off
and closed circuit when the lasers are on. Connect this to this laser status monitor
of your lab
O12
This is an Ethernet communication bus between the optical unit and the electronic
unit.
All connections, except the purging connections Q3 & Q4 and the connection Q11, are required for
correct operation of the spectrometer.
2.2.2 Laser module
The laser module is the source of laser infrared radiation. It contains two Quantum Cascade Lasers
(QCLs) that are controlled separately by the electronic unit. The laser module is connected electrically
to the optical unit when placed into the laser module bay. In addition, the fluid connections provide
cooling liquid to enable stable operation of the QCLs at broad range of temperatures.
Figure 4
Description
H1, H2, H3
These indicate apertures from which laser radiation is emitted. For ASC, it is H1
and H2 apertures. For PSC, it is H2 and H3 apertures.
S1, S2
Shutters that can be used to block a single laser beam. Shutter S1 can be used to
block radiation from laser 1 and shutter S2 from laser 2.
F
Serves as a fixation mechanism of the laser module to the bay.
W1, W2
Coolant connectors.

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Figure 4: Laser Module
WARNING
Possible exposure to laser class 4 under incorrect use.
The laser module housing shall not be under any circumstances removed during
operation. The housing protects users against class 4 laser radiation.
2.2.3 Electronic unit
The electronic unit contains by default the control unit and the acquisition unit. The control unit takes
over supply and control functions of all components in the optical unit. The acquisition unit contains
the high bandwidth acquisition electronics and data evaluation algorithms for transforming the time-
domain data into spectral information. Optionally, the electronic assembly may contain a chiller unit
for cooling of the optical assembly. Finally, it contains a safe multi-plug that powers all electronics and
an ethernet switch that enables ethernet communication.
The control unit contains current and temperature drivers for the laser module as well as data
acquisition card that provides remote control from the graphical user interface via ethernet
communication. It has an internal key interlock for laser safety as well as interlock connection interface
that can be used to control the interlock via external circuit. By default, this interlock connector is
closed with a 50 Ohm resistance plug.
NOTE
Using key interlock to prevent damage and injury
We recommend keeping the key interlock in OFF position whenever the
spectrometer is not operating. In case of uncertainty or emergency during operation,
the key interlock can be used to quickly switch off the lasers to prevent injury.

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Figure 5: Back panel of control unit
Figure 6: Front view of control unit
Figure 5 &
Figure 6
Description
C1
This connector is the remote interlock for laser safety. The lasers can only be
enabled if the remote interlock is in short-circuit. Connect it to the laser safety
circuit of your lab or close it with a 50 Ohm resistance in order to operate the
lasers.
C2, C3, C4, C5
Connections C2 to C5 contain the current supply and the control signals for the
optical unit. They are the counterparts to connectors O7, O8, O9 and O10 of the
optical unit.
C6, C7
These connections are the Ethernet buses for communication with the control
unit.
C8
Power supply plug with power switch and fuses (2A, 5x20mm).
C9
Key interlock for laser safety. When the key is in vertical position (OFF), the lasers
cannot be enabled. To enable turning on lasers, the key must be in horizontal
position (ON)
C10
LED indicator of main power switch. Turns on (green) when mains power supply is
connected and turned on

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WARNING
Possibility of electric shock under unauthorized removal of protective housing
Please be aware that the electronic unit contains high voltage circuits. Do not under
any circumstances remove any parts of the protective housing of the electronic unit.
Non-observance of these instructions may expose user to electric shocks.
The acquisition unit is a computer with a digitizer for fast data processing. The acquisition unit has
two main purposes:
•enables communication with control unit and optical unit via ethernet communication
•processes and stores all measured data from optical unit
It comes with a specialized software package. Please note that the software is continuously upgraded
with new features and bug fixes. The instructions on how to update the software and software release
notes can be always find on our service desk:
•https://irsweep.com/support/
Figure 7: Back panel of the acquisition unit
Figure 7
Description
A1
Power supply plug with power switch.
A2
Ethernet bus for external connection to internet or desired network.
A3
Ethernet bus for local area network (LAN). This port enables communication to
the other components of the spectrometer. It must be connected to the switch.
A4
HDMI display port. Only used during certain maintenance operations.
A5, A6
SMA signal plugs where the output of detectors is connected.
A7
SMA plug for external triggering. Information on how to use external trigger can
be found in chapter 4.
The chiller unit is necessary for cooling of the laser housing and detectors. It has a tank for cooling
fluid (27% propylene glycol, 73% distilled water) and two outputs on the back panel. It is set with
default factory settings and does not need further configuration. Additional information can be found
at the manufacturer’s website:

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•https://www.sscooling.com/products/air-cooled-rackmount-chillers/thermorack-401/
Figure 8: Chiller unit, rear side
Figure 8
Description
T1
Input of the chiller (liquid flows into this connector)
T2
Output of the chiller (liquid flows out of this connector)
T3
Power supply plug
2.2.4 Control computer
The control computer provides the IRis-F1 with graphical user interface as remote control system. It
gives access to the system values, such as operating conditions of lasers, and measurement data. It is
pre-installed and configured to work with the IRis-F1 system out of the box. The user only needs to
connect their peripherals (monitor, keyboard and mouse) to the computer. Relevant information on
how to use the user interface is explained in chapter 4. Please note that, similar to the software
package in acquisition unit, the software is regularly updated and thus it is recommended to visit the
service desk occasionally.
2.3 Optical beam path
2.3.1 ASC variant
Optical beam path for ASC variant is sketched in Figure 9. Beams from laser one (L1) and laser two (L2)
are combined in laser module through a beam-splitter. The beam path going through sample
compartment is called the sample beam path and reaches detector (D1), referred to as the sample
detector. The other path is the reference beam path. It does not interact with a sample and reaches
the reference detector (D2).

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Figure 9: Optical beam path of ASC variant
2.3.2 PSC variant
The optical beam path of PSC variant is shown in Figure 10. In this configuration, only the beam from
laser one (L1) passes through the sample compartment. The beam is superimposed with the beam
from laser two (L2) after the sample compartment in the maintenance region (after mirror S-M2). The
reference beam path corresponds to beams from both lasers superimposed (in service area) without
passing through the sample compartment.

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Figure 10: Optical beam path of PSC variant
2.3.3 Beam alignment
In both variants, a red laser beam is coaligned with the sample beam for easier placement of samples
and accessories. For alignment on the detectors, mirrors in the maintenance area shall be used: for
the sample beam path the standard mirrors S-M1 and S-M2 as well as the off-axis parabolic mirror S-
OAP; for the reference beam path respectively the standard mirrors R-M1 and R-M2 as well as the off-
axis parabolic mirror R-OAP. Mirrors in laser module and service area shall only be used by qualified
personnel.
2.3.4 Sample compartment accessories
Custom accessories can be used in the sample compartment. The beam height is approx. 8.7cm above
the optical breadboard. The beam can be for example focus on the sample and then collimated
afterwards. Always take extra precautions when placing accessories into the beam path.

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3Installation
3.1 General information
The initial installation and set-up of the spectrometer is performed by IRsweep support. The operating
institution shall provide an installation site that conforms with environmental conditions as given in
section 3.4.
3.2 Contents of delivery
The contents of delivered goods depend on the customer’s purchase order. There are core and
optional components. Below is an overview of those components:
Delivery scope
Core
components
The core components included in delivery are:
•Optical unit (ASC or PSC variant)
•Laser module (ASC or PSC variant) of desired wavelength & bandwidth
•19-inch rack mounted with following units:
oControl unit
oAcquisition unit with dedicated software package
oComputer with dedicated UI package
oMains power supply multi-plug adaptor
oEthernet switch
•All electronics cables including
o5x power supply cables
o4x electronic control cables
o2x SMA data acquisition cables
o5x ethernet cables
Optional
components
The optional components may include:
•Chiller unit (mounted in rack) with 2x coolant tubing
•If a custom chiller solution is used, following requirements should be
satisfied:
oStability: +/- 0.05 °C at constant load
oCooling capacity: 400 Watts at 20 °C
oPump: 1.8 L/min
•Optional spectrometer components (additional optics or fibers)
WARNING
Overheating due to blockage of ventilation fans
The rack-mounted electronic components are cooled down with built-in ventilation
systems. Please be aware that it is not allowed to remove any of the components
from the rack, as this might compromise the ventilation efficiency. Non-observance
of these instruction may lead to over-heating and thus damage or/and injury.
3.3 Inspection of delivered goods
Please inspect packaging for damage before accepting goods from the shipping company and check
the contents of goods when receiving the spectrometer.

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WARNING
Possible damage to the delivered goods due to transport and/or handling
If there are any signs of damage due to transport, contact the shipping company. In
this case, do not use the spectrometer as itmight result in injury or additional damage
to the spectrometer. Contact IRsweep support before operation of the spectrometer.
3.4 Transport of spectrometer
The spectrometer comes in two separate palette packages. One consists of the optical unit, the other
of the rack, laser module and cabling. Please be aware that the optical unit and the rack are heavy (ca.
80 kg each). For transporting over long distances, use a fork-lift or wheeled accessory. For placing the
spectrometer on desired location, use at least four persons. The rack is mounted on wheels for easier
transporting. Use at least two persons (four is recommended) to lift the rack from the packaging.
WARNING
Injury and/or spectrometer damage due to inappropriate transport method
Use appropriate methods (e.g. enough persons to carry or adequate equipment)
when handling the spectrometer and the rack. Non-observance of safety instructions
could result in serious injury and/or damage to the equipment.
3.5 Installation requirements
The operating institution shall provide a site which satisfies the following requirements:
Installation requirements
Space
requirements
A suitable, horizontal base to place the table-top optical unit. The electronic
unit, acquisition unit and the water chiller are assembled in a 19 inch rack and
should be placed nearby, not more than 2 m from the optical unit.
•Spectrometer dimensions: 78cm x 57cm x 28cm (weight ca. 80kg). At
the rear side additional 20 cm is needed for cabling and connections.
•Rack dimensions: 56cm x 60 cm x 85 cm
•Dimensions are width x depth x height
A keyboard, mouse and monitor should be available to connect to control
computer.
Environmental
conditions
Ambient conditions:
•Temperature range: 18 –30 °C
•Temperature fluctuations: max. 1°C/h and max. 2°C/day
•Relative humidity: below 80 %
Site requirements:
•A closed room, max 2000 m above sea level
•Spectrometer should not be installed near vibrational sources and
sources of electromagnetic radiation that do not comply with norm IEC
61326-1, as they can interfere with the spectrometer and cause noise
in data or malfunction
Power supply
requirements
Connect the multi-plug adaptor input only to a socket outlet with earthing
contact that complies with VDE 0620-1 or IEC.