Primes PMT 01 User manual

Revision 01/2020 EN
Operating Manual
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PMT01p, 01p sep, 01p sep/out
PMT05p, 05p sep, 05p sep/out
PMT30p, 30p sep, 30p sep/out
PMT70iag, 70iag sep, 70iag sep/out
PMT70icu, 70icu sep, 70icu sep/out
PMT120iag, 120iag sep, 120iag sep/out
PMT120icu, 120icu sep, 120icu sep/out
Translation of the original instructions

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IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP FOR FUTURE USE.

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Table of contents
1 Basic safety instructions 8
2 Symbol explanation 10
3 About this operating manual 11
4 Conditions at the installation site 11
5 Important information for devices with lithium-ion battery 12
5.1 Storing the battery ............................................................................... 12
5.2 Replacing the battery ........................................................................... 12
5.3 If the battery is damaged ..................................................................... 12
5.4 Disposing of the battery ....................................................................... 12
6 Introduction 13
6.1 System description .............................................................................. 13
6.2 Measuring principles ............................................................................ 14
6.3 Differentiation of device types by means of identification plates ............ 14
7 Transportation 15
8 Connect the PocketMonitor PMT by cable 16
8.1 Connect device types sep or sep/out with suitable cable and operating
unit ...................................................................................................... 16
8.2 Connect device types sep/out with the cable of the analog current loop
interface............................................................................................... 17
9 Installation/Removal 18
9.1 Prepare installation............................................................................... 18
9.2 Mounting position ................................................................................ 18
9.3 Align the device ................................................................................... 19
9.4 Position the device in the laser system................................................. 20
9.5 Remove the device from the laser system ............................................ 20

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10 Control Elements 21
11 Display on the device 22
12 Measuring with the PocketMonitorPMT 23
12.1 Safety instructions................................................................................ 23
12.2 Maximum permissible laser power ....................................................... 24
12.3 Measure via the operating unit ............................................................. 24
12.3.1 Get ready for measurement.................................................... 24
12.3.2 Perform measurement............................................................ 25
12.4 Measure via the analog current loop interface
(only device types sep/out)................................................................... 26
12.4.1 Get ready for measurement.................................................... 26
12.4.2 Perform measurement of the laser power............................... 28
12.4.3 Perform measurement of the absorber temperature ............... 29
12.5 Cool the absorber in water for series measurements............................ 30
12.6 Possible errors ..................................................................................... 30
13 Maintenance and service 31
14 Measures for the product disposal 31
15 Declaration of conformity 32
16 Technical data 33
16.1 Device typesp ..................................................................................... 33
16.2 Device typesicu/iag............................................................................. 35
17 Dimensions 37
17.1 PMT 01p.............................................................................................. 37
17.2 PMT 01p sep, 01p sep/out .................................................................. 38
17.3 PMT 05p.............................................................................................. 39
17.4 PMT 05p sep, 05p sep/out .................................................................. 40
17.5 PMT 30p.............................................................................................. 41

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17.6 PMT 30p sep, 30p sep/out .................................................................. 42
17.7 PMT 70icu, 70iag................................................................................. 43
17.8 PMT 70iag sep, 70iag sep/out
PMT 70icu sep, 70icu sep/out ............................................................. 44
17.9 PMT 120icu, 120iag............................................................................. 45
17.10 PMT 120iag sep, 120iag sep/out
PMT 120icu sep, 120icu sep/out ......................................................... 46

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PRIMES - The Company
PRIMES manufactures measuring devices used to analyze laser beams. These devices
are employed for the diagnostics of high-power lasers ranging from CO2lasers and
solid-state lasers to diode lasers. A wavelength range from infrared through to near UV
is covered, offering a wide variety of measuring devices to determine the following beam
parameters:
• Laser power
• Beam dimensions and position of an unfocused beam
• Beam dimensions and position of a focused beam
• Beam quality factor M²
Development, production and calibration of the measuring devices is performed at
PRIMES. This guarantees optimum quality, excellent service, and a short reaction time,
providing the basis for us to meet all of our customers’ requirements quickly and reliably.
PRIMES GmbH
Max-Planck-Str. 2
64319 Pfungstadt
Germany
Tel [phone]
[email protected]
www.primes.de

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1 Basic safety instructions
Intended use
The PocketMonitorPMT is used to measure power in the beam path of lasers. Please
observe and adhere to the specifications and limit values given in chapter16, „Technical
data“, on page33. Other forms of usage are improper. The information contained in
this operating manual must be strictly observed to ensure proper use of the device.
Measurements with the PocketMonitorPMT should be performed exclusively with a
static (unmoving) laser beam. Moving beams can produce faulty power measurements.
Using the device for unspecified use is strictly prohibited by the manufacturer. By usage
other than intended the device can be damaged or destroyed. This poses an increased
health hazard up to fatal injuries. When operating the device, it must be ensured that
there are no potential hazards to human health.
The device itself does not emit any laser radiation. During the measurement, how-
ever, the laser beam is guided onto the device which causes reflected radiation (laser
class4). That is why the applying safety regulations are to be observed and necessary
protective measures need to be taken.
Observing applicable safety regulations
Startup is only permitted once it has been ensured that the entire machine into
which the PocketMonitorPMT is installed meets the requirements of the EC Direc-
tive 2006/42/EC and laser beam protection regulations, including DIN EN ISO 12254,
DIN EN 60825 and TROS laser beam (technical regulations for the occupational safety
ordinance for artificial optical radiation) as well as the corresponding implementation
regulations.
Taking necessary safety measures
If there are people present within the danger zone of visible or invisible laser radiation,
for example near laser systems that are only partly covered, open beam guidance sys-
tems or laser processing areas, the following safety measures need to be taken:
• Please wear safety goggles adapted to the power, power density, laser wave
length and operating mode of the laser beam source in use.
• Depending on the laser source, it may be necessary to wear suitable protective
clothing or protective gloves.
• Please protect yourself from direct laser radiation, scattered radiation as well as
from beams generated from laser radiation (e.g. by using appropriate shielding
walls or by weakening the radiation to a harmless level).

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• Please use beam guidance- or beam absorber elements which do not emit any
hazardous particles as soon as they get in contact with laser radiation and which
resist the beam sufficiently.
• Please install safety switches and/or emergency safety mechanisms which enable
an immediate closure of the laser shutter.
• Please ensure a stable mounting of the device in order to prevent a relative motion
of the device to the beam axis of the laser and thus to reduce the risk of stray
radiation. This is the only way to ensure optimum performance during the mea-
surement.
Employing qualified personnel
The device may only be operated by qualified personnel. The qualified personnel must
have been instructed in the installation and operation of the device and must have a
basic understanding of working with high-power lasers, beam guiding systems and
focusing units.
Conversions, modifications and repairs
The device must not be modified, neither constructionally nor safety-related, without
our explicit permission. The device must not be opened e.g. to carry out unauthorized
repairs. Modifications of any kind will result in the exclusion of our liability for resulting
damages.
Liability disclaimer
The manufacturer and the distributor of the measuring devices do not claim liability for
damages or injuries of any kind resulting from an improper use or handling of the de-
vices. Neither the manufacturer nor the distributor can be held liable by the buyer or the
user for damages to people, material or financial losses due to a direct or indirect use of
the measuring devices.

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2 Symbol explanation
The following symbols and signal words indicate possible residual risks:
DANGER
means that death or serious physical injuries will occur if necessary safety
precautions are not taken.
WARNING
means that death or serious physical injuries can occur if necessary safety
precautions are not taken.
CAUTION
means that a slight physical injury can occur if necessary safety precautions
are not taken.
NOTICE
means that property damages can occur if necessary safety precautions are
not taken.
The device itself or the packing bears the following symbols to indicate require-
ments and possible dangers:
Read and observe the operating instructions and safety guidelines before
startup!
The device contains a non-removable lithium ion battery. In order to prevent
health hazards and damage to the environment, the battery must be dis-
posed of as required by the applicable national and international laws.

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Further symbols that are not safety-related:
Here you can find useful information and helpful hints.
With the CE marking the manufacturer guarantees that his product is in confor-
mity with the EC guidelines.
Call for observing (visual feedback from the device).
X Call for action
3 About this operating manual
This documentation describes the installation and operation of the PocketMonitorPMT
and performing measurements.
4 Conditions at the installation site
• The device must not be operated in a condensing atmosphere.
• The ambient air must be free of organic gases.
• Protect the device from splashes of water and dust.
• Operate the device in closed rooms only.

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5 Important information for devices with lithium-ion battery
The device is equipped with a non-removable lithium ion battery. While operating the
device, it is therefore essential to observe and adhere to the requirements of chapter16,
„Technical data“, on page33 in regards to environmental conditions.
5.1 Storing the battery
Store the device in a cool, dry place. Do not expose the device to direct sunlight.
5.2 Replacing the battery
With the integrated lithium ion battery, approx. 10 000 measurements can be per-
formed. The service life of the lithium ion battery is therefore approx. 2 years. The bat-
tery is checked at every service and replaced if necessary.
5.3 If the battery is damaged
Do not open the device to replace or remove the battery. When the battery is damaged,
fluids (electrolytes) may leak out. These are flammable, contact with the eyes or skin
may cause irritation. Vapors may irritate the eyes, respiratory organs, and skin. Fire or
high temperatures can cause a serious explosion. Heating or fire can release poisonous
gases. Hazardous smoke may be released when ignited.
5.4 Disposing of the battery
In order to prevent hazards to health and damage to the environment, the device must
be disposed of as required by the applicable national and international laws. Please
send the device to PRIMES as described in chapter14, „Measures for the product
disposal“, on page31.
If you are located outside of the EU, please contact your PRIMES distribution partner for
matters concerning device disposal.

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6 Introduction
6.1 System description
The device consists of the absorber with operating unit. Both components are con-
nected to each other either with a swivel joint or a cable.
For device types with swivel joint, the absorber protects the display and the operating
elements from damage and soiling when folded up.
Device types with cable are optionally available with an analog currentloop interface in
the operating unit (device types sep/out).
The different device types and their type designation can be found in the chapter 6.3 on
page14.
Differentiation according to
absorber type
Device types with cable
Device typesp:
plane absorber
Device typesicu/iag:
cylindrical absorber
Device typessep:
cable
Device types sep/out:
cable and current loop interface
Fig. 6.1: Mechanical construction of the device
The display shows either the measured laser power in watts or the temperature of the
absorber in degrees Celsius.
A non-removable lithium ion battery supplies the device with power for approx. 10 000
measurements.

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6.2 Measuring principles
The device measures the laser power according to the calorimetric principle. The
absorber of the device is irradiated with the laser for a short period of time. The tem-
perature of the absorber is measured between the beginning and end of the irradiation.
Based on the temperature rise and the thermal properties of the absorber, the micropro-
cessor-based electronics are able to calculate the laser power with high accuracy.
6.3 Differentiation of device types by means of identification plates
The devices differ by the maximum permissible laser power for which the device is
designed, by the shape of the absorber, by the mechanical construction (swivel joint or
cable) and by an optional analog current loop interface.
Example of identification plate Designation Maximum permissible
laser power
01 0.1 kW
05 0.5 kW
30 3 kW
70 7 kW
120 12 kW
Tab. 6.1: Differentiation by maximum permissible laser power
Example of identification plate Designation Absorber type
p Plane absorber
icu Cylindrical absorber
with conical reflector
iag Cylindrical absorber with
conical silver reflector
Tab. 6.2: Differentiation by absorber type

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Example of identification plate Designation Construction
without With swivel joint,
without current loop
interface
sep With cable,
without current loop
interface
sep/out With cable,
with current loop
interface
Tab. 6.3: Differentiation by mechanical construction and analog current loop interface
7 Transportation
NOTICE
Damaging/Destruction of the device
Hard impacts or dropping the device can damage the electrical compo-
nents.
Touching the absorber can lead to burn-in by the laser radiation at the
points of contact. Burn-in lead to damage to the absorber and increase
the scattered radiation.
X Handle the device carefully when transporting or installing it.
X To avoid contamination, close and lock the unfolded operating unit (only
device types with swivel joint).
X Do not touch the inlet aperture of the absorber.
X Only transport the device in the original PRIMES transport box.

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8 Connect the PocketMonitor PMT by cable
8.1 Connect device types sep or sep/out with suitable cable and
operating unit
Absorber, operating unit and cable are calibrated together and marked on the identifi-
cation plates with matching serial numbers S/N. Therefore only connect the matching
components with matching serial numbers S/N.
1. Connect the cable to the matching absorber.
2. Connect the cable to the matching operating unit.
3. Check that the components are correctly assigned to each other using the serial
numbers S/N.
Corresponding
identification plates
Fig. 8.1: Connecting device types sep or sep/out with calibrated cable and operating unit

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8.2 Connect device types sep/out with the cable of the analog current
loop interface
With device types sep/out there is an analog current loop interface in the operating unit,
via which you can control the device remotely and read out the measured values.
The interface is designed as a 5-pin socket with screw locking (pin assignment see Tab.
8.1 on page17). A suitable angle plug is included in the scope of delivery.
1. Connect the cable to the plug (not shown).
2. Connect the plug to the analog current loop interface.
3. Tighten the screw to lock the connection.
4. Check the correct connection of the components.
Analog current loop interface
Fig. 8.2: Operating unit with analog current loop interface
Pin diagram socket
(top view, plug-in side)
Pin Function
1
2
5
4
31 Ground
2 Supply voltage input: 24V, max.30 mA
3 Current output:
4−20mA (load resistor: max. 500Ohm)
4 Input: pulse for setting a 20s measurement: 24V
5 Input: pulse for setting a 10s measurement: 24V
Tab. 8.1: Socket assignment of the analog current loop interface

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9 Installation/Removal
9.1 Prepare installation
1. Switch off the laser source.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they
cannot be set in motion unintentionally.
DANGER
Serious eye or skin injury due to laser radiation
If the stability of the device is not guaranteed or the inlet aperture is not
centered and mounted perpendicular to the laser beam, increased scat-
tered or directed reflection of the laser beam will occur.
X Place the device according to chapter 9.2 on page18 in a way that
ensures, that the device can not shift or fall.
X Align the device as described in chapter 9.3 on page19.
NOTICE
Damaging/Destruction of the device
Touching the absorber can lead to burn-in by the laser radiation at the
points of contact. Burn-in lead to damage to the absorber and increase
the scattered radiation.
X Do not touch the inlet aperture of the absorber.
9.2 Mounting position
Place the absorber of the PocketMonitor PMT on heat-insulating material so that the
measurement result is not distorted. If the heat of the absorber is dissipated into the
underground, then the display value is falsified (lower values).
Place the absorber of the PocketMonitor PMT on a horizontal, stable and vibration-free
base. The absorber is fixed by the base without additional fixing material.
Avoid strong airflows, e.g. at a nozzle or at the output coupler, as these can lower the
measured values.

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9.3 Align the device
The absorber of the PocketMonitor PMT must be aligned to the laser beam. The laser
beam must hit the inlet aperture in the middle (±2mm) and perpendicular. Please mind
and adhere to the specifications and limit values given in chapter16, „Technical data“,
on page33.
Normally, the device is positioned underneath the focus position of the beam path for
power measurement (divergent laser radiation). If this is not possible, the device can be
positioned above the focus.
Please note that the laser radiation is convergent and the permitted power density on
the absorber is not exceeded.
Maximum
beam diameter
at the inlet aperture
for devices with plane
absorber (depending
on device type):
15mm, 27.5mm,
48mm
Maximum
beam diameter
at the inlet aperture
for devices with
cylindrical absorber:
36mm
Pocket Monitor
PMT 70/120 with conical reflector
and cylindrical absorber
Pocket Monitor
PMT 01/05/30
with plane absorber
Focusing plane
Plane of the
inlet aperture
Focusing optics
Fig. 9.1: Alignment to the laser beam

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9.4 Position the device in the laser system
1. Only device types with swivel joint: Open the operating unit.
2. Position the device in the laser system.
• Please note the information in the chapter 9.2 on page18.
3. Align the device with the laser beam as described in chapter 9.3 on page19.
9.5 Remove the device from the laser system
CAUTION
Burns due to hot components
After a measurement the absorber is hot. Touching the absorber can lead
to burns.
X Let the device cool down for an adequate period of time. The cooling
time varies depending on the laser power and the irradiation time.
NOTICE
Damaging/Destruction of the device
Only device types with swivel joint: If the absorber is still hot, the control
unit can be damaged after closing.
X Do not close the folded-out control unit until the absorber has cooled
down to below 60 °C.
1. Switch off the laser source.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they
cannot be set in motion unintentionally.
3. To check the temperature of the absorber, press the TEMP button.
• Do not continue until the absorber has cooled down to below 60°C.
4. Remove the device from the laser system. To do this, grip the device by the ab-
sorber handle, the operating unit or the swivel joint.
5. Only device types with swivel joint: Close the control unit to protect the device
from dirt.