35,0(6Operating Manual
Translation of the original instructions

PowerLossMonitor PLM
PLM 2, PLM 10, PLM 20, PLM 40
PowerMonitorSoftware PMS

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

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Table of contents
1

Basic safety instructions

7

2

Symbol explanations

93

Conditions at the installation site

94

Introduction

10

4.1
4.2
4.3

System description..................................................................................................................10
Measuring principle..................................................................................................................10
Configurations..........................................................................................................................11

5

Transport

12

6Installing the software

127Connecting the cooling circuit

13

7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8

Water quality............................................................................................................................13
Water pressure.........................................................................................................................13
Humidity...................................................................................................................................14
Water connections and water flow rate.....................................................................................15
Cooling circuit connections on the PLM 2................................................................................15
Cooling circuit connections on the PLM 10 and PLM 20..........................................................15
Cooling circuit connections on the PLM 40..............................................................................16
Influence of the hose lengths on the time constants for measuring devices with external
temperature sensor..................................................................................................................16

Electrical connection

17

8.1
8.2
8.3

Electrical connections on the PLM 2........................................................................................17
Electrical connections on the PLM 10 and PLM 20..................................................................18
Electrical connections on the PLM 40......................................................................................19
8.3.1
Toggle switch to switch between external and internal temperature sensor................19
8.4 Connect the safety interlock.....................................................................................................20
8.5 Connect the power supply.......................................................................................................21
8.6 PIRMES bus.............................................................................................................................21
8.7 Connect the external temperature sensor.................................................................................21
8.8 Connect the PC via the RS232 interface..................................................................................22
8.9 Connect the PC via the USB interface......................................................................................23
8.10 Analog output..........................................................................................................................24

9

Installation of the external temperature sensor

24

10

Measurement

25

10.1
10.2
10.3
10.4

Display the measuring values in the display or the PowerMonitorSoftware PMS.......................25
Measuring value display...........................................................................................................25
LED „Error“..............................................................................................................................25
Tare weight compensation to balance out various resistance values of the temperature sensors.25

11

Storage26

12

Maintenance and service

26

13

Measures for the product disposal

26

14

Declaration of conformity

27

15

Technical data

28

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Dimensions
16.1
16.2
16.3
16.4

35,0(629

Dimensions PLM 2...................................................................................................................29
Dimensions PLM 10.................................................................................................................30
Dimensions PLM 20.................................................................................................................31
Dimensions PLM 40.................................................................................................................32

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PRIMES - The Company
PRIMES manufactures measuring devices used to analyze laser beams. These devices are employed forthe diagnostics of high-power lasers ranging from CO2 lasers 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 todetermine 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

PRIMES is responsible for both the development, production, and calibration of the measuring devices. Thisguarantees optimum quality, excellent service, and a short reaction time, providing the basis for us to meet allof our customers’ requirements quickly and reliably.

PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
GermanyTel +49 6157 9878-0
info@primes.dewww.primes.de

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Basic safety instructions

Intended use
The PowerLossMonitor PLM is used to determine power losses at water-cooled optical components of alaser beam guidance. Please mind and adhere to the specifications and limit values given in chapter 15,„Technical data“, on page 28. Other forms of usage are improper. Other uses are considered to be improper. The information contained in this operating manual must be strictly observed to ensure proper use of
the device.
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 does not emit any laser radiation. However, the device is installed in close proximity to laser beamsystems. Hence, valid safety regulations are to be observed and necessary safety measures are to be taken.
In measuring mode, the laser control’s safety interlock must be connected with the device.
Observing applicable safety regulations
Please observe valid national and international safety regulations as stipulated in ISO/CEN/TR standards aswell as in the IEC-60825-1 regulation, in ANSI Z 136 “Laser Safety Standards” and ANSI Z 136.1 “Safe Useof Lasers”, published by the American National Standards Institute, and additional publications, such as the“Laser Safety Basics”, the “LIA Laser Safety Guide”, the “Guide for the Selection of Laser Eye Protection”
and the “Laser Safety Bulletin”, published by the Laser Institute of America, as well as the “Guide of Controlof Laser Hazards” by ACGIH.
Necessary safety measures
If people are present within the danger zone of visible or invisible laser radiation, for example near laser
systems that are only partly covered, open beam guidance systems, or laser processing areas, the following
safety measures must be implemented:
•
•
•
•
•
•

Connect the laser control’s safety interlock to the device. Check that the safety interlock will switch off
the laser properly in case of error.
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.
Protect yourself from direct laser radiation, scattered radiation, and beams generated from laser radiation(by using appropriate shielding walls, for example, or by weakening the radiation to a harmless level).
Use beam guidance or beam absorber elements that do not emit any hazardous substances when theycome in to contact with laser radiation and that can withstand the beam sufficiently.
Install safety switches and/or emergency safety mechanisms that enable immediate closure of the laser
shutter.

Employing qualified personnel
The device may only be operated by qualified personnel. The qualified personnel must have been instructedin the installation and operation of the device and must have a basic understanding of working with highpower lasers, beam guiding systems and focusing units.
Conversions and modifications
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.

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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 devices or the associated software. 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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Symbol explanations

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 nottaken.

WARNING
Means that death or serious physical injuries may occur if necessary safety precautions are nottaken.

CAUTION
Means that minor physical injury may occur if necessary safety precautions are not taken.

NOTICE
Means that property damage may occur if necessary safety precautions are not taken.

The following symbols indicating requirements and possible dangers are used on the device:

Read and observe the operating instructions and safety guidelines before startup!

Further symbols that are not safety-related:
Here you can find useful information and helpful tips.

With the CE designation, the manufacturer guarantees that its product meets the requirements of
the relevant EC guidelines.
X Call for action

3
•
•
•
•

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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4Introduction

4.1

System description

The PowerLossMonitor PLM is a system that determines power losses especially in water-cooled components of beam guidance systems.
PLM 2/10/20

Display
Red LED „Error“

Water flow rate is too low
PLM 40

Red LED „Error“

Display

Water flow rate is too low
Fig. 4.1:

4.2

Components of the PowerLossMonitor PLM

Measuring principle

The PowerLossMonitor PLM measures the water flow rate of the cooling water as well as the temperature
difference between inflowing and outflowing water. These values are then used to calculate the power inducted in the cooling water.
If the mounting of the beam deflection mirrors is thermally insulated from the machine frame, the measured
power equals the power that was converted into heat by the mirrors exactly.
Since in reality this is, however, not possible, heat constantly leaks from the machine frame into the coolingwater (or vice versa). This results in a zero offset. Therefore, the zero value has to be subtracted from themeasured value to determine the power loss.
The main components of the measuring system include:••••

Housing including electronic measuring equipment, LCD display and connections
Integrated temperature sensor
External temperature sensor
Integrated flow meter
PowerLossMonitor PLM
T1 / Q

Chiller

Mirror/Absorber
External temperature sensor

Fig. 4.2:

10

Schematic representation of the measurement setup with external temperature sensor

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4.3

Configurations

Depending on the purpose of use and power, the devices are available with different configurations and connections:
Designation

PLM 2

Connections

Power in kW

Water In
from Chiller

Water Outto Absorber

PRIMES bus

PRIMES bus

Safety Interlock

T-Sensor external

2

USB
Analog Out
Water In
from Chiller

Water Outto Absorber

PRIMES bus

PRIMES bus

PLM 10

T-Sensor external

Safety Interlock

10

Safety Interlock MSM
USB
Analog Out

Water In
from Chiller

Water Outto Absorber

PRIMES bus

PRIMES bus

PLM 20

T-Sensor external

Safety Interlock

20

Safety Interlock MSM
USB
Analog Out

PLM 40PCW supply(Inlet flowfrom chiller)

To Absorber

PCW return(Return flow
to chiller)

From Absorber
Analog Out
Safety Interlock
T-Sensor

Tab. 4.1:

40

USB
PRIMES bus

PowerLossMonitor PLM configurations

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Transport

NOTICE
Damaging/destroying the device
Hard hits or falls may damage the device.
X Handle the device carefully when transporting it.
X Only transport the device in the original PRIMES transport box.

NOTICE
Damage/destruction of the device caused by leaking or freezing cooling water
Leaking cooling water can damage the device. Transporting the device at temperatures nearor below freezing and without emptying the cooling circuit completely can damage thedevice.
X Empty the lines of the cooling circuit completely.
X Even when the lines of the cooling circuit have been emptied, a small amount of residual
water will remain in the device at all times. This may leak out and end up inside the device.
Close the connector plug of the cooling circuit with the included sealing plug.

NOTICE
Damaging/Destruction of the flow rate meter
The flow rate meter is not designated for high rotational speed.
X Do not use compressed air for emptying the cooling circuit.

6

Installing the software

For the operation of a PowerLossMonitor PLM with a PC, the PRIMES PowerMonitorSoftware has to beinstalled. Start the installation by double-clicking the file “PMS v.2.xx Setup” and follow the instructions on
your screen.

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Connecting the cooling circuit

DANGER
Fire hazard; Damage/Destruction of the device due to overheating
If there is no water cooling or a water flow rate which is insufficient, there is a danger ofoverheating, which can damage the device or set it on fire.
X Do not operate the device without a connected water cooling. Ensure a sufficient water flow
rate.

7.1

Water quality

NOTICE
Damage/Destruction of the device due to different chemical potentials
The parts of the device which get in contact with cooling water consist of copper, brass or
stainless steel. A connection of the device to aluminum pipes can lead to corrosion of thealuminum due to the different chemical potentials.
X Do not connect the device with a cooling circuit made of aluminium.
•
•
•
•
•

7.2

The device can be operated with tap water as well as demineralized water.
Do not operate the device on a cooling circuit containing additives such as anti-freeze.
Do not operate the device on a cooling circuit in which aluminum components are installed. Especiallywhen it comes to the operation with high powers and power densities, it may otherwise lead to corrosionin the cooling circuit. In the long term, this reduces the efficiency of the cooling circuit.
Should the cooling fail, the device can withstand the laser radiation for a few seconds. In this case,please check the device as well as the water connections for damages and replace them if necessary.
Large dirt particles or teflon tape may block internal cooling circuits. Therefore, please thoroughly rinse
the system before connecting it.

Water pressure

NOTICE
Damage/Destruction of the device due to overpressure
X The maximum allowable water pressure differs for the versions of the PowerLossMonitor PLM. You can find the necessary water pressure in chapter 15, „Technical data“, onpage 28.

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Humidity
The device must not be operated in a condensing atmosphere. The humidity has to be considered inorder to prevent condensates within and outside the device.
The temperature of the cooling water must not be lower than the dew point (see Tab. 7.1 on page 14).

NOTICE
Damage/Destruction of the device due to condensing water
Condensation water inside of the device can lead to damage.
X Mind the dew-point in Tab. 7.1 on page 14.

40

100

35

80
70
60

30

50
25

40

20

30

15

20

Relative humidity in %Cooling water temperature in °C

Do only cool the device during the measuring operation. We recommend starting the cooling approx. 2 minutes before the measurement and terminating it approx. 1 minute after the measurement.

10
5
10

0
0

Tab. 7.1:

5

10

15
20
25
30
Air temperature in °C

35

40

Dew point diagram

ExampleAir Temperature:		Relative Humidity:

22 °C
60 %

The cooling water temperature cannot fall below 14 °C.

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7.4

Water connections and water flow rate

The devices have the following outside port diameters. To ensure a reliable operation, the water flow rate according to Tab. 7.2 on page 15 is required. When the minimum flow rate is not met, the laser will be turned
off if a safety interlock is connected.
PLM 2

PLM 10

PLM 20

PLM 40Connection outer diameter for PE hoses

8 mm

12 mm

16 mm

3/4 Zoll

Recommended flow rate in l/min

1–4

7 – 12

10 – 22

20 – 37

Minimum flow rate in l/min

0.5

4

4

8

Tab. 7.2:

7.5

Water connection outer diameter and cooling water flow rate

Cooling circuit connections on the PLM 2

Outside port diameter for PE hose 8 mm

Water In
from Chiller

PRIMES-Bus
RS485

SafetyInterlockT-Sensor
external

PRIMES-Bus
RS485

Water connection from chiller
Fig. 7.1:

7.6

Water Outto Absorber

Water connection to mirror

Water connections PLM 2

Cooling circuit connections on the PLM 10 and PLM 20

Outside port diameter for PE hose 12 mm (PLM 10) and 16 mm (PLM 20)

Water In
from Chiller

PRIMES-Bus
RS485

SafetyInterlock

Water connection from chiller
Fig. 7.2:

Safety T-Sensor PRIMES-Bus
RS485
Interlock external
MSM

Water Outto Absorber

Water connection to absorber

Water connections PLM 10 and PLM 20

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Cooling circuit connections on the PLM 40

Outside port diameter for PE hose 3/4 inches
When fastening the coupling nut, make sure to use an open-end wrench AF 36 to prevent thescrewing inside the housing from loosening.

Water connection
from absorberFig. 7.3:

7.8

Water connection
to absorber

Water connection
from chiller

Water connection
to chiller

Water connections PLM 40

Influence of the hose lengths on the time constants for measuring devices withexternal temperature sensor
The lengths of the hose connections have an influence on the time constants of the measuring
devices. Please only use the provided hoses at the positions marked with red arrows.

External
temperature sensor
Absorber of the HP-MSM

Water out
Fig. 7.4:

16

Water in

Cooling Circuit PLM 10 with external temperature sensor with the example of the HP-MSM

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8Electrical connection

The measuring device has the following electrical connections:
•
•
•
•
•

Connection for the external temperature sensor (T-Sensor external)
Safety interlock connection in order to control the water flow rate (safety Interlock and safety interlock
MSM respectively)
PRIMES bus connections (D-Sub sockets, 9-pin) for the power supply and communication
USB interface
Analog output 0 V ... 10 V

8.1

Electrical connections on the PLM 2Water In
from Chiller

PRIMES-Bus
RS485

SafetyInterlock

Safety interlock
PRIMES bus
Fig. 8.1:

T-Sensor
external

PRIMES-Bus
RS485

Water Outto Absorber

PRIMES bus
External temperature sensor

Electrical connections PLM 2 at the sideUSB
Analog output
Fig. 8.2:

Electrical connections PLM 2 at the cover plate

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Electrical connections on the PLM 10 and PLM 20

Water In
from Chiller

PRIMES-Bus
RS485

SafetyInterlock

Safety T-Sensor PRIMES-Bus
RS485
Interlock external
MSM

Safety interlock

Water Outto Absorber

PRIMES bus

PRIMES bus

External temperature sensor
Safety interlock MSM

Fig. 8.3:

Electrical connections PLM 10 and PLM 20 at the sideUSB
Analog output
Fig. 8.4:

18

Electrical connections PLM 10 and PLM 20 at the cover plate

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8.3

Electrical connections on the PLM 40
USB

PRIMES bus

Analog output
Safety interlock
External temperature sensor
Fig. 8.5:

8.3.1

Electrical connections PLM 40

Toggle switch to switch between external and internal temperature sensor

You can switch between the external and internal temperature sensor in the return flow of the cooling waterby means of the toggle switch extern/intern (see Fig. 8.6 on page 19).

Toggle switch

Fig. 8.6:

Switch for temperature measuring points

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Connect the safety interlock

The safety interlock protects the measuring device from damages by turning off the laser in case of an error.
The device can be damaged in case of a low water flow rate.
Whenever the water flow rate is too low, pins 1 and 4 are connected. In case the water flow rate is according
to the operating conditions, pins 1 and 3 are connected.

NOTICE
Damaging/Destruction of the device
If the safety interlock is not connected, this may lead to damages to the device due to overheating.
X Make sure to connect the laser control in a way that ensures that the laser is turned off
whenever this connection is interrupted.
A suitable connection cable with a device plug and free ends is included in the scope of delivery
Pin assignment socket(top view, plug-in side)

Pin

Wire color

Function

4

1

Brown

Mutual pin

3

Blue

Connected with Pin 1 when ready for operation

4

Black

Connected with Pin 1 when in safety interlock mode
(water flow rate too low)3

Tab. 8.1:

20

1

Pin assignment safety interlock

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8.5

Connect the power supply

In order to operate, the PowerLossMonitor PLM requires a supply voltage of 24 V ±5 % (DC). A suitable
power supply with an adapter unit is included in the scope of delivery. Please use only the provided connection lines.
PLM
AdapterFig. 8.7:

PRIMES power supply

Connecting the power supply

Connect the power supply unit via the adapter with one of the 9 pin D-Sub sockets (RS485) of the PowerLossMonitor PLM.

8.6

PIRMES bus

The device is supplied with power by means of the 9 pin D-Sub sockets. Using a converter, the socket canalso be used to connect a PC to enable communication (see chapter 8.8 on page 22).
D-Sub socket, 9 pin(top view, plug-in side)

5

1

9

Tab. 8.2:

8.7

6

Pin

Function

1

Ground2

RS485 (+)

3

+24 V

4

Not assigned

5

Not assigned

6

Ground7

RS485 (–)

8

+24 V

9

Not assigned

Pin assignment PRIMES bus

Connect the external temperature sensor

The temperature sensor is a Pt100 with a four-wire connection. Plug the connector cable into the corresponding socket of the PowerLossMonitor PLM. The connection cable may have a length of up to 10 m.

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Connect the PC via the RS232 interface

For the communication with the computer, you require:
PRIMES standard power
supply with adapter (included in scope of delivery)

PRIMES RS485/RS232 converter(included in scope of delivery)+

Fig. 8.8:

D-Sub connecting cable(included in scope of delivery)+

Scope of delivery

NOTICE
Damaging/Destruction of the device
Connecting or disconnecting the bus cable when it is connected with the supply voltage
leads to voltage peaks, which may damage communication modules of the measuring device.
X Only establish connections when the power supply unit is turned off! Do not disconnect anything as long as the supply voltage is turned on!

NOTICE
Damaging/Destruction of the device
The supply voltage of 24 V is ensured by means of the RS485-based PRIMES bus. If themeasuring device is directly connected with a PC, the computer may be damaged!
X Only connect your PC with the measuring system via a PRIMES RS485/RS232 interface
converter.

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1. Connect the device with the PRIMES converter via the PRIMES connector cable (plug/plug).
2. Connect the PC with the PRIMES converter via the PRIMES connector cable (socket/socket).
3. Use the adapter to connect the power supply to the 9-pin D sub socket (RS485) of the device.
PLM

PRIMES connection cableplug/plug
L=2 m

Adapter

PRIMES power supply

PRIMES converter

PRIMES connection cable,
socket/socket L=2 m
RS 232PC

Fig. 8.9:

8.9Connection with the PC via RS232 and PRIMES converter

Connect the PC via the USB interface

You can also connect the PC via the USB interface of the PowerLossMonitor PLM. In this case, the PRIMESRS485/RS232 converter is not needed and the power supply is connected directly via an adapter to thePowerLossMonitor PLM (see Fig. 8.2 on page 17 or Fig. 8.4 on page 18 and Fig. 8.5 on page 19).
You will find the PRIMES USB-driver for all USB-capable devices on the PRIMES website at: https://www.
primes.de/en/support/downloads/software.html.

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Analog output

The analog signal is effected via the 4-pin device socket M8 (see Fig. 8.2 on page 17 or Fig. 8.4 on
page 18 and Fig. 8.5 on page 19). The output voltage is 0 V ...10 V. A suitable connection cable isincluded in the scope of delivery.

An output voltage of 1 V equals approx.
Tab. 8.3:

9

PLM 10

PLM 20

PLM 40250 W1000 W

2000 W

4000 W

Output voltage and laser power

Pin assignment socket(top view, plug-in side)

Tab. 8.4:

PLM 2

Pin

Wire color

Function1

Brown

Not connected

2

White

Not connected

3

Blue

Ground for the analog signal

4

Black

Analog signal 0-10 Volt

Socket assignment of the analog output

Installation of the external temperature sensor

The temperature sensor has to be installed in a way that ensures that it extends into the water flow but
against the flow direction. The tip should protrude from the bottom of the pipe approximately 15 mm.
1. Plug the external temperature sensor into the cooling circuit output using a T-piece (see Fig. 7.4 on
page 16).
XX The temperature sensor should be positioned as close to the cooling circuit output of the mirror or theabsorber as possible.

Flow Direction

Fig. 9.1:

24

Installation of the external temperature sensor

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Measurement

Please observe the safety instructions in Chapter 1 on page 7.

10.1

Display the measuring values in the display or the PowerMonitorSoftware PMS

The measured values are displayed on the integrated display or can also be displayed on a PC via the
PRIMES bus or the USB-interface. This requires the PRIMES PowerMonitorSoftware PMS (included in thescope of delivery).

10.2

Measuring value display

The following measuring values are displayed:••••

Absolute temperature
Temperature difference
Flow rate of the cooling agent
Calculated power loss

10.3

LED „Error“

The red LED glows if the water flow rate is too low.
Switch the laser off in this case and check the minimum flow-through volume.

10.4

Tare weight compensation to balance out various resistance values of the temperature sensors

For technical reasons, different resistance values in the temperature sensors can occur (depending on
the cable length and the contact resistance), which can lead to different power displays when the laser isswitched off.
The PRIMES PowerMonitorSoftware PMS offers the possibility to adjust this „offset“ before a measurement(tare adjustment).
Click on the button Use current value as offset before measurement.

Fig. 10.1:

User interface of the PowerMonitorSoftware PMS

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Storage

Please note before storing:

NOTICE
Damage/destruction of the device caused by leaking or freezing cooling water
Leaking cooling water can damage the device. Storing the device at temperatures near or
below freezing and without emptying the cooling circuit completely can damage the device.
X Empty the lines of the cooling circuit completely.
X Even when the lines of the cooling circuit have been emptied, a small amount of residual
water will remain in the device at all times. This may leak out and end up inside the device.
Close the connector plug of the cooling circuit with the included sealing plug.
X Store the device in the original PRIMES transport box.

NOTICE
Damaging/Destruction of the flow rate meter
The flow rate meter is not designated for high rotational speed.
X Do not use compressed air for emptying the cooling circuit.

12

Maintenance and service

The operator is responsible for determining the maintenance intervals for the measuring device.
PRIMES recommends a maintenance interval of 12 months for inspection and validation or calibration.
If the device is used only sporadically, the maintenance interval can also be extended up to 24 months.

13

Measures for the product disposal

Due to the Electrical and Electronic Equipment Act (“Elektro-G“) PRIMES is obliged to dispose PRIMES measuring devices manufactured after August, 2005, free of charge. PRIMES is a registered manufacturer in theGerman “Used Appliances Register“ (Elektro-Altgeräte-Register “EAR“) with the number
WEEE-Reg.-Nr. DE65549202.
Provided that you are located in the EU, you are welcome to send your PRIMES devices to the following address where they will be disposed free of charge (this service does not include shipping costs):
PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
Germany

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Declaration of conformity

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Technical data

Measurement parameters

PLM 2

PLM 10

PLM 20

PLM 40Max. laser power

2 kW

10 kW

20 kW

40 kW

PLM 20

PLM 40Resolution temperature measurement

0,001 K

Resolution power measurement

1W

Supply data

PLM 2

PLM 10Power supply, DC

24 V ± 5 %Current demand< 800 mA

Max. cooling water pressure
Recommended cooling water flow
rate

3 bar

4 bar

5 bar

5 bar

1 – 4 l/min

7 – 12 l/min

10 – 22 l/min

20 – 37 l/min

Cooling water temperature Tin1)
1)

Please contact PRIMES in advance in case you intend not to work within this specification.

Communication
Interfaces
Dimensions and weight
Dimensions (LxWxH)
without connections
Weight, approx.

28

Dew point temperatur < Tin < 30 °C

PLM 2

PLM 10

PLM 20

PLM 402 x RS485
1 x USB

2 x RS485
1 x USB

2 x RS485
1 x USB

1 x RS485
1 x USB

PLM 2

PLM 10

PLM 20

PLM 40300 x 200 x
80 mm

300 x 200 x
80 mm

300 x 200 x
80 mm

304 x 200 x
146 mm

3.8 kg

3.8 kg

3.8 kg

6.7 kg

Revision 01/2019 EN

35,0(6PowerLossMonitor PLM

16

Dimensions

16.1

Dimensions PLM 2

A

View AAll dimensions in mm (general tolerance ISO 2768-v)

Revision 01/2019 EN

29

35,0(616.2

PowerLossMonitor PLM

Dimensions PLM 10

A

View AAll dimensions in mm (general tolerance ISO 2768-v)

30

Revision 01/2019 EN

35,0(6PowerLossMonitor PLM

16.3

Dimensions PLM 20

A

View AZeic

All dimensions in mm (general tolerance ISO 2768-v)

Zeichnungs-Nr. und Index an vorgegebener Stelle anbringen.

PRIMES

Revision 01/2019 EN

31

35,0(616.4

PowerLossMonitor PLM

Dimensions PLM 40

A

B

Ansicht A
PCW Zulauf
PCW Zulauf

Ansicht B
PCW Rücklauf
PCW Rücklauf

vom Absorber
vom Absorberzum Absorberzum Absorber

All dimensions in mm (general tolerance ISO 2768-v)

32

Revision 01/2019 EN