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Product Catalogue
Particle Monitor LPM II
Local Solutions For Individual Customers Worldwide
2 www.stauff.com
Particle Monitor
The STAUFF Diagtronics range makes available components and services for monitoring and
Our offering ranges from stainless steel analog gauges through to highest-precision laser particle
counters.
A versatile range is necessary to be able to deal with different customer requirements. The
innovative STAUFF Diagtronics range takes into account these crucial market factors and offers a
wide spectrum of modern products of the highest quality.
Competent and rapid service is second nature for us. All our products are subjected to relevant
inspections in accordance with international standards and are quality inspected using our
internal Quality Management system that complies with ISO 9001:2008.
tions of products.
Please contact STAUFF for any further details you may require.
www.stauff.com
Table of Contents
LPM II Particle Monitor
Product Information 3
Product Description / Order Codes / Technical Data 4
Accessories
Interface Modules with USB/Ethernet Interface 5
LPM II-USB INTERFACE
LPM II-ETH INTERFACE
Remote Display Unit LPM II-REMOTE DISPLAY 5
Flow Control Valve LPM II-DAV 6
Moisture Sensor / Temperature Sensor 7
Diagtronics
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Particle Monitor
Product Characteristics
Increased Precision And Resolution
The LPM II Particle Monitor uses newly developed high-perfor-
mance LEDs, which provide an precise image of the degree of
contamination in the hydraulic system.
Thanks to the large number of measuring channels, it is
higher contamination classes.
Permanent Installation For Continuous Monitoring
The LPM II has been specially developed for continuous moni-
toring of the hydraulic system. Due to the permanent installation
in the system, the LPM II allows users to quickly respond to
increasing contamination, thus protecting the system from
expensive failures and machine downtimes.
Small And Robust
Because of its robust and compact structure, the LPM II is not
sensitive to jolts, shocks, dust and moisture (IP 65 International
Protection Rating) and can be used with virtually any common
All The Data At A Glance
The device shows the measured data on the display as a
contamination class according to ISO 4406:1999, NAS 1638,
AS 4059E and ISO 11218 or as a particle count per size.
The internal memory has a capacity of up to 4000 measuring
results. All the measured data can be transferred to a PC across
a USB or an Ethernet interface. It is also possible to implement
real-time system analysis using this connection. Appropriate
interface modules are available.
Link To Bus Systems
If the hydraulic system is not easy to access, a separate
LPM II-REMOTE can be installed in a conveniently location.
The integrated Modbus and CAN Bus interfaces can be used
to connect the device to existing machine control, and data
aquisition systems.
Flexible Pressure And Flow
characteristics make it possible to carry out
Always Secure – External Alarms
Another feature that the LPM II offers is the option to specify
different alarm thresholds. This means that in the case of
issues a signal to an external device, e.g. a warning light or a
More Information –
Moisture Sensor / Temperature Sensor
temperature sensor. This sensor determines the water content
Please note that you cannot use the moisture sensor / tempera-
ture sensor with phosphate esters (e.g. Skydrol®) and water
Media Resistance
LPM II; this means that each device must be rated in
Scope of Supply
Each STAUFF LPM II Particle Monitor Set includes:
1x STAUFF LPM II Particle Monitor
2x M16 x 2 Test Couplings (mounted)
1x LPM II-CAB-P-FL-3 connecting cable
(3 m / 9.84 ft), with plug and open cable ends
1x Software on CD
1x Operating manual on CD
1x Quick start guide
1x Connection diagram
Particle Monitor LPM II
Product Information
The development of STAUFF's LPM II Particle Monitor is based
on the experience that has been gained using the familiar
LasPaC II series analysis units.
By contrast with the previous LPM I version, the LPM II
Particle Monitor determines the degree of contamination of
and more complete determination of the particle size in
accordance with international standards.
It is available in two versions:
LPM II-D with display and keypad
LPM II-O without display and keypad
(Either unit is available with an integrated moisture sensor)
A
B
A
B
P T
P T
Typical measuring setup in the pressure circuit
A
BP T
A B
P T
Representation of the measured values by means of real-time system analysis
Flow
Flow
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Particle Monitor
Particle Monitor LPM II
Product Description / Order Codes / Technical Data
Product Description
The LPM II Particle Monitor determines the contamination level
and complete determination of particle sizes in accordance with
international standards.
The LPM II is an automatic, optical particle counter with high-
performance LEDs that work on the light obscuration principle.
STAUFF recommends recalibrating the measuring equipment at
regular intervals.
Options
Moisture sensor / temperature sensor:
Phosphate ester- (e.g. Skydrol®) and water glycol-compatible
devices are available on request
Technical Data
Channels
>4, 6, 14, 21, 25, 38, 50, 70 μm(c) according to ISO 4406:1999
Measuring Range / Purity Classes
ISO 4406:1999 Code 0 to 25, NAS 1638 Class 00 to 12,
AS4059 Rev. E. Tables 1 and 2 Sizes A-F: Classes 000 to 12,
ISO 11218 Classes 00 to 12
(lower codes or classes are test time-dependent)
Precision
±1/2 Code for 4, 6, 14 μm(c)
±1 Code for larger particles
Calibration
Each device is individually calibrated using ISO Medium Test
Dust (MTD) in accordance with ISO 11171 (1999);
Flow
20 ... 400 ml/min / 0.005 ... 0.11 US GPM
Viscosity Range
Medium Temperature
Ambient Temperature
Weight
1.15 kg / 2.53 lbs
116
(4.5
7)58
(2.2
8)
126(4.96)
141(5.55)
48.5(1.91)
Ø 7
(.28)
63.5(2.50)
27.9(1.10)
25.5(1.00)
International Protection Rating
IP 65: Dust-proof and protected from spray
Impact resistance rating IK04
Power Supply
9 ... 36 V DC
Current Consumption
12 V: 70 mA (LPM II-O), 150 mA (LPM II-D)
24 V: 40 mA (LPM II-O), 80 mA (LPM II-D)
36 V: 30 mA (LPM II-O), 60 mA (LPM II-D)
Power
<2.2 W
Housing Surface Treatment
Painted, polyurethane based paint, according to BSX34 colour
BS381-638 (dark grey)
Tested according to: BS2X34A and BS2X34B,
MMO114 and SP-J-513-083 Part II. Cl. A
The unit meets: MIL-PRF-85285
Wetted parts
M: C46400 Cu alloy, 316 stainless steel, viton, FR4, sapphire
G: 316 stainless steel, viton, sapphire
EPDM
Fluid Compatibility
M: Brass, viton and FR4: suitable for synthetic and mineral
G: Austentic stainless steel, viton: suitable for offshore and
suitable for phosphate ester and aggressive media
Max. Permissible Operating Pressure
(Note: In systems with extreme pressure peaks, please
contact STAUFF)
Test Duration
Settable between 10 ... 3600 sec., set ex-works to 120 sec.
As standard with start delay and freely programmable test
intervals
Water Sensor
Temperature Sensor
Volumetric Flow Measurement
As display only
Data Storage
Max. 4000 measuring results
Interfaces
RS485, RS232, Modbus, CAN Bus
Order Codes
LPM II - D - M - W
� Series and Type Particle Monitor
LPM II (Incl. LPM II-CAB-P-FL-3 connecting cable)
� Version With display and keypad D
Without display and keypad O
� Fluid Compatibility Fluids based on mineral oil and petroleum (standard) M
Phosphate ester (e.g. Skydrol®) E
G
please contact STAUFF.
� Moisture Sensor / Temperature Sensor Without moisture sensor / temperature sensor O
With moisture sensor / temperature sensor W
Note: In the case applications with extreme pressure
peaks, please contact STAUFF.
Note: Versions "E" and "G" can only be supplied with an
anodized housing and without a water sensor.
Note: You need an interface module with either a USB or
an Ethernet interface for exporting and programming.
Flow
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Particle MonitorConnection Diagram / Accessories
Interface Module with USB or Ethernet Interface LPM II-USB/ETH INTERFACE
USB
ETH
incl. connection cable LPM II-CAB-P-FL-3 CAN orModbus
LPM II-USB INTERFACE
LPM II-ETH INTERFACE
Network
USB
ETH ETH
LPM II-D (with display)LPM II-O (w/o display)
hydr. line
Product Description
The LPM II is connected to an EDP system or a laptop/PC using
an interface module with a USB or an Ethernet interface.
Either interface module is connected to the LPM II using a
connecting cable (3 m / 9.84 ft). With the power supply unit
connected, the LPM II is supplied with current via the connect-
ing cable.
The interface modules allow you to evaluate the measured data
and to carry out programming using the supplied software.
In USB operation, the LPM II can be supplied with current via the
USB cable too.
Order Code
LPM II - USB INTERFACE
� Series and Type Interface module with
USB interface LPM II-USB INTERFACE
Order Code
LPM II - ETH INTERFACE
� Series and Type Interface module with
Ethernet interface LPM II-ETH INTERFACE
LPM II-CAB-P-P-3
LPM II-O (without display)
USB / ETH /CAN / Modbus
hydr. line
LPM II-REMOTE DISPLAY
Remote Display Unit LPM II-REMOTE DISPLAY
Connection diagram: PC connection of the LPM II Particle Monitor
Product Description
play via a remote display the values that the LPM II measured.
The LPM II can be programmed using the keypad on the
remote display.
Order Code
� Series and Type LPM II-REMOTE DISPLAY
LPM II-REMOTE DISPLAY
Connection diagram: Remote display
Scope of supply:
Power supply unit
Interface module with USB interface
Connecting cable (3 m / 9.84 ft)
USB cable
Scope of supply:
Power supply unit
Interface module with Ethernet interface
Connecting cable (3 m / 9.84 ft)
Note: An Ethernet cable is not supplied.
Scope of supply:
Remote Display
LPM II-CAB-P-P-3 connecting cable
Hydraulic line LPM II-D (with display)LPM II-O (without display) Incl. LPM II-CAB-P-FL-3 connecting cable
LPM II-USB INTERFACE
LPM II-ETH INTERFACE
Network
CAN Bus or Modbus interface
Flow
Flow
Hydraulic line
LPM II-O (without display)
LPM II-CAB-P-P-3
LPM II-REMOTE DISPLAY
USB/ETH /CAN Bus/Modbus
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Particle Monitor
Flow Control Valve LPM II-DAV
Accessories
Product Description
control valve.
It can process pressures from 4 bar ... 400 bar /
58 PSI ... 5801 PSI.
Max. Permissible Operating Pressure
400 bar / 5801 PSI
(Note: Note that a minimum operating pressure of 4 bar /
58 PSI must be maintained for the proper function of the
Order Code
LPM II - DAV - M
� Series and Type Flow Control Valve LPM II-DAV
� Fluid Compatibility Fluids based on mineral oil and petroleum (standard) M
Phosphate ester (e.g. Skydrol®) E
G
M16x2 measurement coupling
SW24~14
5,5
SW19
(5.7
3)
Flowrate ok
Flowrate too low
Flow control valve required
Flowrate too high 100
10
1
0.1
0.01
0,0011 10 100 1000
Flow
Flow
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Particle MonitorAccessories
Product Description
More oil analyses – water content and oil temperature
to go cloudy.
Above this value, there is a risk of water collecting in the system
in the form of droplets. This can lead to corrosion and faster
wear.
Using the moisture sensor / temperature sensor, the LPM II
This sensor is in the device in a specially designed housing in
Simplicity – saturation as a percentage value (%)
Different oils have different saturation values. This means that
the most sensible approach is to measure saturation in percent.
It is of course possible to convert these results to parts per mil-
lion (ppm) if you know the saturation/temperature characteris-
tics of the oil type.
Further information on oil temperature values
In addition to the water content, the moisture sensor /tempera-
ture sensor of the LPM II Particle Monitor can also measure the
for the RH values (relative humidity/percentage share of water
in oil).
and the measurement progress screen and in the printed
analysis.
Please note: Due to the temperature gradient between the tap
operating conditions.
Saturation point
Emulsion
Free
wat
er
Dis
solv
ed
wat
er
Moisture Sensor / Temperature Sensor
Saturation values
damaging than those of dissolved water, the water content
should always be considerably below the saturation point.
However, even dissolved water can cause damage. This
saturation as low as possible.
In this case too much water is never enough!
As a guideline, we recommend always keeping the satura-
Local Solutions For Individual Customers Worldwide
LPM II Product Catalogue English 9910000218 06/2013
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