LaserPoint Cronos Series User manual

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 1
Cronos
Instruction manual
(Rev12 –05-2018; Firm. vers.4)
WARNING! The user of this instrument must be trained to the use of
power lasers and associated risks. LaserPoint is in no way liable for
any damage resulting from improper, careless or above rated limits
use of this instrument.
LaserPoint srl - Via Burona, 51 - 20090 Vimodrone (Milano) - Italy
Phone [phone] - Telefax [phone]
www.laserpoint.eu

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 2
Declaration of Conformity
Application of Council
Directive(s):
89/336/EEC –The EMC Directive
Manufacturer’s Name:
LaserPoint s.r.l.
Manufacturer’s Address:
Via Burona 51,
20090 –Vimodrone (MI) - Italia
Type of Equipment:
Laser Power / Energy Meter
Model No:
CRONOS
Years of test & manufacture:
2014
Standard(s) to which Conformity is Declared:
EN 50081-1:1992 Emission generic standard - Part 1: Residential, commercial
and light industrial
EN 50082-2:1995 Immunity generic standard - Part 1: Industrial
Standard
Description
Performance
Criteria
EN 55022:1994
amendment 1: 1995
amendment 2: 1997
Limits and methods of measurement of
radio interference characteristics of
information technology equipment
Class B
EN 61000-4-2:1995
Electromagnetic compatibility (EMC) –
Part 4: Testing and measurements
techniques- Section 4.2: Electrostatic
discharge.
Class B
I the undersigned, hereby declare that the equipment specified above conforms
to the above Directive(s) and Standard(s).
Place: Vimodrone - Italia
Date:
Dr. Luigi Argenti (Technical Director)

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 3
Calibration
Model: Cronos LP ____
Serial Number: ______________
Date of Calibration: ________________
Reference Power:
(1064nm)
___________ W
Measured Power:
___________ W
Reference Power:
(10600nm)
___________ W
Measured Power:
___________ W
1) In Models LP10 and LP5.0 measured values at wavelengths of CO2and YAG are the same, within
the specified measurement accuracy.
LaserPoint certifies that, at the time of calibration, the above listed instrument
meets or exceeds all technical specifications defined at page 8 of this Instruction
Manual.
The above listed instrument has been calibrated using standard references
traceable to the National Institute of Standards and Technology (NIST) or
Physikalisch Technische Bundesanstalt (PTB).
This is not a Calibration Certificate for traceability purpose; such a
Calibration Certificate can be quoted on demand.
Important - For Customer Use Only
The reference setting of this instrument can be matched by user to a custom
own reference by means of the instructions reported at Paragraph n.11 of the
Operation Section of this Manual.

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 4
Operation Section
1-Safety
Take all the required safety procedures needed when
working with power laser beams and wear protection
glasses all the time! The laser beam must hit ONLY the
sensor head front side. Avoid to incidentally expose the
protected stainless steel stem to the laser beam as
dangerous back-reflections can be produced! Never touch the sensor head as this
part can reach 70°C of temperature!
In the case the laser power density is close to the damage threshold of the head
absorber coating, damages like coating discoloration or underlying beginning of
metal melting could occur. In both cases consult LaserPoint.
2-Starting the Instrument
To switch on the instrument, keep the ON/Zero button
pushed until the LCD shows the serial number and the model
of your instrument (LP.X, where X = 1.5, 5.0 or 10), then release
it (this step takes approximately 2 seconds). The instrument will also display the
selected laser wavelength; two options are possible: CO2(10.6 m) or YAG
(1060nm). The wavelength displayed the first time is random; to change it refer to
Paragraph 10 of this section.
3- Auto-check Cycle
When the ON/Zero button is released, the instrument starts
an auto-check cycle during which both circuit and display
are controlled and reset. During this cycle, the LCD shows
all available segments of alphanumeric characters and the
bar graph at full scale. Upon completion of this cycle, the LCD displays the last
recorded value of measured power.
.
4-Zeroing/Resetting
Before starting the first measurement or a new one, the
instrument needs to be zeroed; to do so, just push and soon
release the ON/Zero button. The LCD displays “CAL”
and the LED on the right side of the LCS, turns steady
green for approximately 5 seconds. At this point, any previously recorded value is
zeroed and the instrument is ready to measure.

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 5
5-Measurement Cycle
Check the laser shutter is closed and the laser is on; align the
probe to the laser beam path and start the measurement cycle
by opening the laser shutter. The measurement starts
automatically and the measurement time is shown by a count
down displayed on the LCD starting by “Run 8” down to “Run 0”. This step takes
approximately 8 seconds . During the acquisition time the LED blinks green. The
bar graph indicates the head temperature on an arbitrary scale.
Avoid measurements while the laser is warming up or when it shows instabilities on
a few seconds period, as they can be meaningless or misreading.
Always keep the instrument steady and the beam well centred, in particular on
conical probes; do not move it during the readings to avoid measurement errors.
6-Measurement Display
As soon as the measurement is over the LED turns into
steady red. Remove the probe from the laser beam: the
display shows the actual power, and the remaining thermal
capacity. If the bar graph is below full scale, one or more
measurements can be carried out before the sensor head needs to be cooled.
The following measurement can be executed after the LED automatic shuts off and
this takes between 10 and 20 sec depending on probe model. To perform a new
measurement go back to Paragraph 4.
7-Cooling the Head
Should the probe reach its limit temperature, the LCD
shows “ COOL” and the LED blinks red. Put the
absorber head (only the head !) into water to cool it
down.
When the temperature falls below its maximum allowable limit, the LCD displays
the last measured value and when the bar graph shows few bars, accurately dry the
absorber by dry and clean air; the probe is ready for new measurements.
8-Auto Off /Battery Warning
As the battery pack is about getting exhausted, a battery
symbol pops up on the LCD: it warns you have approx. 10
hours of residual power.

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 6
Note: to increase the battery life, the instrument automatically switches off after
5 minutes of stand by operation. However the last recorded value is not lost; to
retrieve it, go back to Paragraph 2 and follow the instructions. After the internal
auto check cycle, the display will show the last measured value.
To intentionally shut the instrument off, keep the ON/Zero button pushed until
the LCD shuts off (this takes approximately 4 seconds).
9-Out of Range Notice
When the head is exposed to a source exceeding its
full scale, the LCD shows “ERR” instead of a
numeric value.
10-Wavelength Selection
To select the wavelength of operation (from CO2 to
YAG or viceversa), go back to Paragraph 2 (shut the
instrument off), but keep the ON/Zero button pushed
until the wavelength change appears on the display
(this step takes approximately 7 seconds). At this
point release the button and the instrument is ready for a new measurement.. The
displayed value is the last recorded power measurement carried out at this
wavelength setting.
11-Customer’s calibration
This instrument can be re-calibrated by the user to
match a custom reference. Remove the plastic cover
of the adjustment switch located at the right side of
the instrument body. Zero the instrument as
indicated in Paragraph 2 of this Operation Section
and afterwards carry out a measurement of a known laser source. Shift the switch
on + or –if you need to increase or decrease the reading displayed on the LCD to
match your reference. This is done by limited pushes on the ON/Zero key, until
the desired power value is achieved on the display. Reset the switch to its middle
position CAL and re-cap. The instrument is ready for new measurements.

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 7
Notice to European Union Customers:
European Union Waste Electrical and Electronic Equipment (WEEE)
Directive 2002/96/EC
The European Parliament will enforce new Directives in 2006 concerning the
disposal of electrical and electronic equipment such as the Monitoring and
Control Instruments.
The regulations place responsibilities on the instruments supplier and the
purchaser/user.
One of the actions required by suppliers is to inform users of their obligations.
The present instrument has been assessed in accordance with the European
Parliament Directive 2002/96/EC on Waste Electrical and Electronic Equipment,
usually referred to as the WEEE Directive.
The WEEE Directive requires that the instrument is disposed of at the end of its
useful life in an environmentally responsible manner. Parts and materials that can
be re-used and/or re-cycled have been identified in order that the use of new
resources and the amount of waste going for landfill can be minimised.
The WEEE Directive requires that if you are replacing the instrument with a new
equivalent product from the original supplier, then that supplier can collect the
old item without cost to yourself. It is emphasised that this no-cost return option
is only available when you purchase a new product of equivalent type that fulfils
the same function. Please inform your supplier of your wish to have the old
instrument collected when ordering the replacement.
If you wish to dispose of the instrument without replacing it then the appliance
must not be mixed with unsorted municipal waste. The crossed-out wheeled bin
symbol on the unit label or unit packaging, as shown in the table below, indicates
this requirement.
You must ensure that the instrument is disposed of at an authorised treatment
facility; details can be obtained from your local council.
Your rôle is critical and will help to ensure that the Earth’s resources are
maintained and that as much re-usable and re-cyclable material as possible is
processed. It will also ensure that landfill volume requirements are kept at a
minimum and that hazardous materials are not buried thereby providing potential
future problems for the environment and human health.
Wheeled bin symbol and description
The symbol apply to all LaserPoint electronic products placed on
the European Market after August 13, 2005.
LaserPoint will affix the wheeled bin symbol with a bar to
appropriate products. The bar indicates that the product was placed
on the market after August 13, 2005.
The WEEE Directive comes into force in January 2006.

LaserPoint s.r.l. –Cronos Instruction Manual –All Rights are Reserved 8
Technical Specifications (*):
Parameter
LP1.5
LP5.0
LP10
Maximum Measurable Power (W)
1500
5000
10000
Minimum Measurable Power @ ±4% Accuracy
(W)
(1)
150
(1)
500
(1)
1000
Absolute Minimum Measurable Power (W)
30
100
200
Power density damage threshold @ full scale at
CO2 wavelength (W/cm2 )
2600
1900
1500
Repeatability
±2%
±5%
±5%
Measurement Accuracy
±4%
Resolution (W)
1
Maximum allowable absorber temp. (°C)
150
Time to measure and display data at full scale
power (s)
10
Time to measure and display data at min. scale
power (s)
15
Power consumption in On status (mW)
26
Power consumption in Off status ( W)
25
Power supply (2x AA Batteries) (V)
3
Continuous operation without battery
replacement (h)
200
Operating temperature range (°C)
10 to 40
Storage temperature range (°C)
-10 to 60
Weight (g)
480
950
1300
Length with handle (mm)
300
310
320
(*) Specifications subject to change without notice.
(1) Individually compared against a NIST or PTB reference.
Warranty
All Laser Point instruments are warranted against defect in material and
workmanship for 3 Years after invoice date. During the warranty period Laser Point
will repair, or at his sole option, replace at no charge components that prove to be
defective, provided the parts are returned, shipping prepaid, to Laser Point Customer
Service.
This warranty does not apply if the instrument or any accessory has been damaged
by accident or misuse, or as a result of service or modification by other body than
Laser Point. No warranty is given by Laser Point on coatings and battery pack.