Hydrotechnik Patrick User manual

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 1 of 21
Patrick
... the Particle Counter
Operating Instructions
Rev. 1.8 EN • November 29, 2012
TKZ L3160-00-76.00EN

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 2 of 21
Contents
1. Safety .................................................................................................................. 3
1.1. General Safety and Warning Hints ...................................................................... 3
1.2. Laser Safety Advice............................................................................................. 3
1.3. Hints for the Use of the Particle Counter ............................................................. 4
2. Introduction........................................................................................................ 4
2.1. Range of Validity.................................................................................................. 4
2.2. Copyright.............................................................................................................. 4
2.3. Limitation of Liability ............................................................................................ 5
2.4. Use as Agreed ..................................................................................................... 5
2.5. Warranty Regulations .......................................................................................... 5
2.6. Obligations to the Customer ................................................................................ 6
2.7. Authorized Staff ................................................................................................... 6
3. Description of the Device.................................................................................. 6
3.1. Qualities............................................................................................................... 6
3.2. Components of the Device .................................................................................. 7
3.3. Technical Data..................................................................................................... 8
3.4. Dimensional Drawing........................................................................................... 9
4. Installation and Start-up.................................................................................... 9
4.1. Installation Location ............................................................................................. 9
4.2. Installation.......................................................................................................... 10
4.3. Elektrical Connection ......................................................................................... 11
4.4. Switching output ................................................................................................ 12
4.5. Calibration (reference value of the current output)............................................ 12
4.6. Sequential Data Output ..................................................................................... 13
4.7. Start-up .............................................................................................................. 13
5. Operation of the Particle Counter .................................................................. 13
5.1. Navigation in the Menu...................................................................................... 13
5.2. Menu Tree ......................................................................................................... 14
5.2.1. Select operation mode.................................................................................................... 15
5.2.2. Set alarms....................................................................................................................... 15
5.2.3. Analog settings ............................................................................................................... 16
5.2.4. Select standard............................................................................................................... 16
5.2.5. Flow settings...................................................................................................................16
5.2.6. Communication settings.................................................................................................. 16
5.2.7. Display settings............................................................................................................... 17
5.2.8. Sensor parameter ........................................................................................................... 17
5.2.9. Language........................................................................................................................17
6. Communication settings................................................................................. 18
6.1. Serial interface configuration ............................................................................. 18
6.1.1. Interface parameters....................................................................................................... 18
6.1.2. Command list: read commands ...................................................................................... 18
6.2. USB communication .......................................................................................... 18
6.3. CAN ................................................................................................................... 18
7. Troubleshooting .............................................................................................. 21
Illustrations
Pic. 1 Functional principle ........................................................................................................... 6
Pic. 2 Front view ......................................................................................................................... 7
Pic. 3 Dimensions and mounting possibilities ............................................................................. 9
Pic. 4 ∆p-Q-curve for different viscosities ................................................................................. 10
Pic. 5 Pin assignment viewed from top to the sensor connector............................................... 11
Pic. 6 Measurement of the analog 4 … 20 mA output without load resistor.............................. 11
Pic. 7 Measurement of the analog 4 … 20 mA output with load resistor................................... 11
Pic. 8 Switching output ............................................................................................................. 12
Pic. 9 Sequence when transmitting all parameters subsequently ............................................. 13

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 3 of 21
1. Safety
1.1. General Safety and Warning Hints
ATTENTION – Dangerous electrical voltage
• Do not cut, damage or modify the connection wire and do not place items on it.
• Never touch the device with wet or moist hands.
• Only connect the device to suited power sources (see technical data).
• Unplug the mains cord during a thunderstorm.
• Unplug the mains cord when detecting a smell or smoke, or if the cord is
damaged.
• Assure a proper grounding of your plant. Measuring errors may be caused by
improper grounding.
1.2. Laser Safety Advice
WARNING – Class 1 laser contained
• Never remove covers or housings. Otherwise laser light may come out what can
lead to injuries of your eyes.
• The device contains a laser sensor classified as “Class 1 Product” acc. to 21 CFR,
sub-chapter J, of the Health and Safety Act of 1968, when it is used as described
in this manual. This manual does not contain information on implemented parts,
maintenance and repair may only be executed by qualified personnel.
• This device has been evaluated and tested according to EN61010-1:1993, IEC
825-1:1993 and other norms (e.g. ISO 4406, ISO 6149-2).
• A label indicating the laser class according to 21 CFR is attached to the device.
This must be present and readable at all time. Damaged or unreadable labels
must be replaced immediately.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 4 of 21
1.3. Hints for the Use of the Particle Counter
Handle the device carefully
• Never expose the device to excessive heat or moisture, obtain the technical data.
• Do not store the device a humid or dusty location or at temperature below the
freezing point.
• Never dip the device into water or other liquids. Never let liquid come into the
device.
• Never open the device.
• Do not use the device after it has fallen down or if the casing is damaged.
• Avoid strong magnetic fields. Keep the device away from electric motos or other
devices that generate electro-magnetic fields. These may cause malfunctions and
influence measured values.
• Avoid the condensation of water. If water has condensed, you should acclimate
the device before switching it on. Otherwise it may be damaged.
2. Introduction
Do not loose claims
The information and hints in this section are important. By non-observance you
may loose possible warranty claims.
2.1. Range of Validity
The manual on hand is valid for particle counters named "Patrick". It adresses to the operator of this
instrument, that means the person, who works with the instrument. The manual is not a technical
manual. Please contact our service staff for questions, that exceed the contents of this manual.
2.2. Copyright
The device and this manual are protected on copyright. Manufacture without license will be
prosecuted by law. All rights reserved on this manual, even the reproduction and/or duplication in
any thinkable form, e.g. by photocopying, printing, on any data recording media or translated.
Reproduction of this manual is only permitted with a written approval of Hydrotechnik GmbH.
The technical state by the time of delivery of instrument and manual is decisive, if no other
information is given. Technical changes without special announcements are reserved. Earlier
manuals are no longer valid.
The general conditions of sale and delivery of Hydrotechnik GmbH are valid.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 5 of 21
2.3. Limitation of Liability
We guarantee the faultless functioning of our product in accordance with our advertising, the product
information edited by Hydrotechnik GmbH and this manual. Further product features are not
guaranteed. We take no liability for the economy and faultless function if the product is used for a
different purpose than that, described in the chapter „Use as agreed“.
Compensation claims are generally impossible, except if intention or culpable negligence by
Hydrotechnik GmbH is proved, or if assured product features are not provided. If the product is used
in environments, for which it is not suited or which do not represent the technical standard, we are
not responsible for the consequences.
We are not responsible for damages at installations and systems in the surroundings of the product,
which are caused by a fault of the product or an error in this manual.
We are not responsible for the violation of patents and/or other rights of third persons outside the
Federal Republic of Germany.
We are not liable for damages, which result from improper operation according to this manual. We
are not liable for missed profit and for consecuting damages due to non regardance of safety advice
and warning hints. We don’t accept liability for damages which result from the use of accessoires
which are not delivered and/or approved by Hydrotechnik GmbH.
The products of Hydrotechnik GmbH are designed for a long life. They represent the standard of
technique and science and were checked on all functions individually before delivery. The electrical
and mechanical construction corresponds to the current norms and regulations. Hydrotechnik GmbH
is doing product and market research for the further development and permanent improvement of
their products.
In case of faults and/or technical trouble please contact the Hydrotechnik GmbH service staff. We
assure that suitable measures will be taken immediately. Hydrotechnik GmbH guarantee regulations
are valid, which we will send to you on demand.
2.4. Use as Agreed
The device Patrick is an optical particle monitor that may be used for the monitoring of fluid
cleanliness. It works according to the light extinction principle and detects particles and other
contaminants in the fluid. The measured values are calculated into purity classes according to
ISO4406:99 or SAE AS4059E and then shown on the display.
You may read the measuring data via a serial interface and transfer them to a measuring instrument
or a computer. The connection to the fluid system is achieved by two Minimess®test points of the
1620 screw series.
Any other use of this device is regarded as improper use. Please contact our service staff if you
have questions or want to use the device for another purpose. We will be always glad to help you.
2.5. Warranty Regulations
In accordance to our warranty regulations we guarantee the condition without defects for this
measuring instrument for a duration of six months. Wearing parts and storage batteries are excepted
from this warranty. The warranty is spoiled if repair work or interventions are executed by
unauthorized persons.
Within the warranty period we repair damage or defects which are caused by a manufacturing fault.
We only accept warranty claims if they are reported to us immediately after their discovery, but latest
six months after delivery. The warranty benefit is by our choice through repair of defective parts or
replacement by intact parts.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 6 of 21
Send your instrument with an invoice copy or delivery note copy to Hydrotechnik. The adress is
mentioned at the end of this manual.
2.6. Obligations to the Customer
The operating authority of this product has to assure, that only persons who
• know the regulations on working safety and accident prevention
• have been instructed in the operation of this product
• have read and understood this manual
can operate this product. Persons who operate this instrument are obliged to
• obey all regulations on working safety and accident prevention
• read this manual completely, especially the safety instructions in the first chapter.
2.7. Authorized Staff
Persons are authorized if they have a professional education, technical experience, knowledge of
the important norms and regulations and if they are able to estimate their duties and recognize
possible danger at an early time.
Operator of the instrument
Persons are authorized if they are trained in the operation of the instrument and have read and
understood this manual completely.
Personell for installation and maintenance
Persons are authorized if they are trained in all aspects of the instrument and have read and
understood this manual completely.
3. Description of the Device
3.1. Qualities
The device Patrick is an optical particle monitor working according to the light-extinction principle:
Pic. 1 Functional principle
The device comprises a through-flown measuring cell (A), a laser (B) and a photo cell (C). The laser
shines through the measuring cell and impacts the photo cell. If a particle flows through the laser
beam, the intensity reflected by the photo cell is reduced. The larger the particle, the more the
reflection will be reduced.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 7 of 21
You may use Patrick to monitor the contamination level and the purity trend of fluids. There may be
differences in the absolute accuracy to particle counters calibrated according to ISO 11171:99, but
this difference is smaller than one ordinal number. Changes are display with very high accuracy. By
the continuous purity monitoring you can detect changes within a machine very quickly. This allows
you to initiate measures to avoid further contaminations and damage to the machine.
The purity class display can be switched to ISO4406:99 or SAE AS4059E. The device also
measures the temperature, not in the liquid but on the electronic switchboard (measuring range -20
… 100 °C). The device is equipped with an operating counter, the values will still be available after a
power loss. After each interruption, the counter will restart at the last saved time value before the
interruption.
3.2. Components of the Device
1 Fluid inlet
2 Rotatable panel
3 Indicator „Power“
4 Indicator „Alarm“
5 Display
6 Fluid outlet
7 Key „Up“
8 Key „Escape“
9 Key „Enter“
10 Key „Down
Pic. 2 Front view
Fluid inlet/outlet (1) (6)
The device is equipped with two Minimess®test points of the 1620 screw series. Normally two
Minimess®hoses will be connected here to connect Patrick to the fluid system.
Display (2) (5)
The front panel may be rotated by 190° to allow a horizontal orientation of the display in any
mounting situation. The bw-display shows the last calculated purity classes and the time to the next
measurement, or the remaining measuring duration.
Indicator „Power“ (3)
Operating voltage is present if the indicator is lit green.
Indicator “Alarm” (4)
This is lit red if an alarm is present. You may program two alarms, please see the information in the
respective chapter of this manual.
2 3 4 5 6
7
8
9
10
1

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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Keys (7) … (10)
The complete operation and programming is done with four keys:
opens the main menu; moves the highlighting bar upward; increases a value
opens the main menu; moves the highlighting bar down; lowers a value
selects menu items and opens submenus; confirms entries; jumps to the next digit
returns to the higher menu level; leaves the main menu; cancels entries
3.3. Technical Data
Operating conditions
allowed operation pressure 420 bar (dynamic)
environmental temperature -20 ... 80 °C
humidity 0 … 95 %
Storage conditions
environmental temperature -20 ... 85 °C
humidity 0 … 95 %
Fluids
allowed fluids mineral- and esther fluids, polyalfaolefines
fluid temperature -20 ... 80 °C
fluid connectors 2x ¼“ Minimess®1620
allowed volume flow rate 50 … 400 ml/min
Moistened materials high-grade steel, sapphire, copper
Sealing material NBR
Power supply 9 … 36 V DC
Power consumption max. 300 mA
Current outputs 4 … 20 mA
Interfaces RS 232, CANopen
Alarm contact potential-free contact
Electrical connector 8-pole plug M12 x 1
Measuring range acc. to ISO 4406:99 0 … 24 (ordinal number)
Calibrated measuring range 10 … 22 (ordinal number)
Measuring accuracy ± 1.0 (ordinal number)

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 9 of 21
3.4. Dimensional Drawing
Pic. 3 Dimensions and mounting possibilities
A: four mounting points M5 x 5.5
B: ventilation hole with pressure compensation element
C: 2x Minimess®test point 1620, 2103-01-18.00N
4. Installation and Start-up
4.1. Installation Location
Please observe these hints when choosing an installation location:
• Connect Patrick with a T-branch to a bypass pressure line.
• The flow direction is arbitrary.
• There should be constant pressure conditions at the installation location. The pressure may vary,
but there may not be pressure peaks or large alternations.
• It is recommended to choose a control line, otherwise you may also choose the filter or cooling
loop.
• The volume flow rate should be constant between 50 and 400 ml/min.
• Flow control or pressure reduction should be installed after the particle counter since such
installations may cause particles or air bubbles that may cause wrong measurements.
• If a pump is required to produce the required volume flow rate, it should be low-pulsating and be
installed in front of the particle counter. Otherwise bubbles could be generated on the suction
side what would lead to wrong measurements.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 10 of 21
4.2. Installation
Please observe these hints before starting the installation:
• Assure that the display can be read easily after installation. It is rotatable by 190° to ease the
selection of a installation location.
• The shorter, the better is valid for connection hoses. If the hoses get too long, larger particles
may deposit.
• It must be assured especially for higher viscosities and the use of Minimess®hoses that the
pressure is high enough to set a volume flow rate between 50 and 400 ml/min.
• Assure a bubble-free fluid. Bubbles in the fluid result in very high ordinal numbers in different size
classes. Such bubbles cannot be visible to the naked eye.
Estimation of the required pressure level
Obtain the deltaP of the particle counter dependant to the fluid viscosity:
Pic. 4 ∆p-Q-curve for different viscosities
This diagram allows you to estimate the required pressure level for the required volume flow rate of
50 to 400 ml/min.
Installation
Now you may install Patrick:
1. Identify the installation location corresponding to the stipulated criteria.
2. Connect two fluid lines to the Minimess®test points.
3. Mount the particle counter using the mounting points at the rearside of the device.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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4.3. Elektrical Connection
The device may be installed by qualified staff, only. Obtain the national and international regulations
for the installation of electrical plants and install the power supply in accordance to EN50178, SELV,
PELV, VDE0100-410/A1. Use the Hydrotechnik power pack 8812-00-00.36 together with the
Y-distributor 8808-50-01.03.
Cut-off the mains power and then connect the device as follows:
Pin assignment of sensor connector
1 +UB
2 GND
3 TxD; CAN-L
4 RxD; CAN-H
5 Digital input
6 IOUT1
7 Open Collector, Alarm OUT
8 SGND
Casing / shield
Pic. 5 Pin assignment viewed from top to the sensor connector
The allowed operating voltage is between 9 and 36 VDC. Use shielded sensor wires, only. You may
only use suited connectors and wires to achieve protection class IP67. The tightening torque of the
connector is 0.1 Nm.
Analog current outputs (4 ... 20 mA) – Measurement without load resistor
Pic. 6 Measurement of the analog 4 … 20 mA output without load resistor
Use a suited measuring instrument, the assignment of the current value to the measurand will be
explained below.
Analog current outputs (4 ... 20 mA) – Measurement with load resistor
Pic. 7 Measurement of the analog 4 … 20 mA output with load resistor
A load resistor must be connected to each output to measure the current of both analog current
outputs. Dependant on the supply voltage, the load resistor should be between 250 and 2,600 Ω.
Use a volt meter to measure the voltage dropped over the respective resistor.
Use the formula shown in section 4.4 on page 12 to calculate the purity class from the measured
voltages.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 12 of 21
Calculation of the required load resistor
The load resistor cannot be chosen arbitrary. It must be adapted to the sensor supply voltage. Either
use the following formula to calculate the required resistor, or use a value shown in the table:
Formula UVin V Rmax in Ω
9 250
12 400
18 600
24 1,000
Ω−
−
=100
20 2 mA
VU
RMax
30 1,300
4.4. Switching output
The switching output is not short-circuit protected and has no over-current or over-temperature
protection. The maximum switching voltage is 36 VDC.
Pic. 8 Switching output
4.5. Calibration (reference value of the current output)
The current range covers ordinal numbers accoring to ISO 4406:99 from 0 … 32. A current value of
4 mA corresponds to the ordinal number „Zero“, 20 mA to the ordinal number „26“.Normally only
ordinal numbers between 4 and 24 are used for display. Use this formula to calculate the ordinal
number of the purity class from the measured current:
Formula IOUT in mA Result Ordinal No
6 3.25 3
10 9.75 10
4
26
][
])[420( 26 −× −
=mAx
mA
OZ
14 16.25 16

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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4.6. Sequential Data Output
Pic. 9 Sequence when transmitting all parameters subsequently
After a starting sequence (S), the measured values for the different size classes are transmitted
subsequently. After a pause the next cycle starts with the transmission of the starting sequence.
4.7. Start-up
The particle counter will immediately start to measure and will display the first measuring results
after approximately one minute.
5. Operation of the Particle Counter
5.1. Navigation in the Menu
The operation keys are occupied as follows:
opens the main menu; moves the highlighting bar upward; increases a value
opens the main menu; moves the highlighting bar down; lowers a value
selects menu items and opens submenus; confirms entries; jumps to the next digit
returns to the higher menu level; leaves the main menu; cancels entries

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 14 of 21
5.2. Menu Tree

Patrick the Particle Counter
Operating Instructions
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5.2.1. Select operation mode
Observe the minimal measuring duration
Do not use a measuring duration of less than 30 seconds. The particle counter
needs more time to detect all particles accurately. The cleaner the oil, the
longer the measuring duration. ISO 4406:99 purity levels of 15 and better
should be re-measured after 120 seconds, latest.
Patrick can be used in three operation modes that can be selected in the menu:
Time controlled meas. Patrick works with the set sample time and a delay time between the
measurements; example: one minute sample time and four minutes
delay time produce a measuring result each five minutes; in fact this will
take some seconds more, because the laser is re-focussed at the
beginning of each measurement; press again while the option “Time
control” is enabled and highlighted to set sample and delay time:
Sample time press to start the entry; arrows are displayed at the first digit; press
to set the first digit; press to jump to the next digit; set all
digits of the sample time, confirm with and press
Delay time set the desired delay time like described for the sample time
Digital I/O the measurement continues until a signal is present at the input; the
digital input is active when connected with GND; then a current will be
present of I = (U – 1.1 V) / 5,600 Ωwith U = supply voltage
Button press the
key to start and end a measurement
Automatic Patrick continues measuring until sufficient values for statistically
confirmed measuring results are available; these will be displayed;
measurement starts again after a pause time
5.2.2. Set alarms
Alarm type
First select the alarm type:
Std. Alarm the alarm is triggered as soon as a set threshold is exceeded at a channel
Filter mode used to supervise a cleaning; the alarm is triggered after all channels have been
fallen below a defined threshold
Press to activate the desired alarm type and then press again to display the set threshold
values:
STD. ALARM
0 / 0 / 0 / 0
Press to start the entry. Arrows will be displayed at the first „Zero“. Press to set the first
alarm threshold. Press to jump to the next class. Repeat this procedure to set the thresholds for
all classes. If a class shall be neglected, the value should be set to “Zero”.
The thresholds set for the standard alarm will be used for the filter mode, too. And vice versa.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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Alarm memory
Here you select the reaction of Patrick in case of an alarm. This can either be disabled automatically
(set to „Auto off“) or remain active until confirmed by the operator.
Smoothing
Here you may set an average calculation preventing alarms for a single extreme value. Open the
function and set the desired number of values used to calculate the average.
5.2.3. Analog settings
Here you may select which data shall be transferred to the analog output:
4 / 6 / 14 / 21 select the class which measured value shall be transferred via the analog output;
it is a linear output in full ordinal numbers (4 mA equals to ordinal number “zero”,
20 mA to ordinal number “26”); the maximum burden depends on the supply
voltage (Rmax = ((U – 2 V) / 20 mA) – 100 Ω)
Sequential the measured values of all classes are transferred sequentially (see section 4.6
on page 13)
5.2.4. Select standard
Choose the purity display in accordance to ISO 4406:00 or SAE AS4059E. Please be aware for SAE
that the size classes 38 and 70 µm will not be evaluated in separate channels, but together with size
class 21.
5.2.5. Flow settings
Patrick measures the volume flow rate together with particle size and number to calculate the
concentration. This is done when the option „Auto“ is selected (recommended flow rate: 100 ... 400
ml/min).
Since each measurement has a certain inaccuracy you may set a known volume flow rate. This will
be used to calculate the concentration. Select the option “Fix” and then press , again:
Fix
050 ml/min
Press to start the entry. Arrows will be displayed at the first digit. Press to set the first
digit. Press to jump to the next digit and repeat the procedure to set the volume flow rate.
5.2.6. Communication settings
Here you define the configuration of the digital interface.
Select interface type
RS 232 data output via the RS 232 interface
CAN data output via CAN bus
AutoDetect the connected recipient will be detected automatically and the data output will be
set to the required format

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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Baudrate CAN
Select the data transmission speed of the CAN interface. The selected speed must be identic with
that of the connected CAN bus, otherwise communication will be impossible.
50 / 125 / … select the speed in kBaud
Term. CAN switches an 120 Ωresistor to terminate the CAN line; this option should be set at
any time
Node-ID CAN
Here you may display the set node ID of the particle counter. This will be required to address the
CAN commands and assign the CAN signals correctly.
Baudrate RS 232
Select the data transmission speed of the RS 232 interface. The selected speed must be identic with
that of your system, otherwise communication will be impossible.
Auto TX RS 232
Here you may choose the data that shall be transmitted via the digital interface. You may transmit
the current measured values, and the voltage and time values of the particle counter. You may
transmit one, two or all three values.
5.2.7. Display settings
As a standard the display illumination is switched off after ten seconds („Dim after 10x“), but you
may also switch it on permanently („Continuous“).
5.2.8. Sensor parameter
Here you may view several parameters of the particle counter:
Measurement shows the recent measurements of the size classes and a volume flow rate
index; press to toggle the display between the size classes
Hardware shows several measured values of the system electronics; press to show
more parameters
Oper. hours shows the number of operation hours of sensor and laser
Error info shows a list of all error messages and alarms; press to scroll through all
information messages
Flow adjust shows the volume flow rate level; if the bar is between L and H, the volume flow
rate is ok; if the bar fills the complete diagram, or is invisible, and H/L blinks, the
flow rate is too high/low and must be adjusted
The display limits (bar chart) are between L = 100 ml/min and H= 400 ml/min.
The L (low) starts flashing, if the volume flow rate falls below 100 ml/min. Patrick
continues measuring correctly down to the minimal flow rate of 50 ml/min.
5.2.9. Language
Select one of the available languages.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
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6. Communication settings
6.1. Serial interface configuration
Patrick can be readout and configured via the serial interface. You will need a PC and an installed
terminal software to do this.
Connect Patrick to an available COM port of the computer. A suited communication cable for the
serial connection between sensor and PC/control can be ordered from Hydrotechnik. If the computer
does not have a COM port, you may use a serial interface card or an USB-serial-converter.
6.1.1. Interface parameters
• Baud rate: 9600 / 57600
• Data bits: 8
• Parity: none
• Stop bits: 1
• Flow control: none
6.1.2. Command list: read commands
Cmd Meaning Return format
RVal[↵] read current measured values with
checksum (CRC)
$Time:%.4f[h];ISO4µm:%i[-];ISO6µm:%i[-];ISO14µm:%i[-];
ISO21µm:%i[-];SAE4µm:%i[-];SAE6µm:%i[-];SAE14µm:%i[-];
SAE21µm:%i[-];Conc4µm:%.2f[p/ml];Conc6µm:%.2f[p/ml];
Conc14µm:%.2f[p/ml];Conc21µm:%.2f[p/ml];FIndex:%i[-];
Mtime:%i[s];Status:0x0000; 0x0000;0x0000;0x0000;CRC:x
RMemS[CR] read number of recordable data
sets
MemS: xxxx[CR][LF]
RMemU[CR] read number of recorded data sets MemU: xxxx[CR][LF]
RMem[↵] read all recorded measured values Time [h]; T [°C]; P [-];P40 [-];PTG [1/K];… [CR][LF]
x.xxx;x.xxxx;x.xxxx;x.xxxx; x.xxxx;... [CR][LF]
RID[↵] read identification with checksum
(CRC)
Hydrotechnik;Patrick;SN:xxxxxx-xxx;
SW:xx.xx.xx;CRC:x 1)
RCon[↵] read current configuration Smode:%i;Fmode:%i;Analog:%i;Amode:%i;Alarm4:%i;Alarm6:%i;Alarm
14:%i;Alarm21:%i;(Mtime:%i[s];Htime:%i[s])
Please contact our customer support if you need a complete list with all commands.
6.2. USB communication
Patrick can be readout via an USB interface. You will need a PC with the installed software
HYDROcom 6. Connect Patrick to an USB interface of your computer. A suited RS 232 – USB
converter cable is available from Hydrotechnik. Please obtain the hints in the HYDROcom 6 online
help for more information.
6.3. CAN
Patrick can be embedded into existing bus systems that comply with the CANopen standard. Please
refer to corresponding technical or school books for more information on CAN and CANopen.
CANopen Object Dictionary
The table contains the communication-related part of the object dictionary of the particle counter.
With a few exceptions, the possible settings correspond to the CANopen standard as described in
„DS-301“.

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 19 of 21
Communication profile
Idx SIdx Name Type Attr. Standard Remarks
1000h 0 device type unsigned 32 ro 194h sensor, see DS404
1001h 0 error list unsigned 8 ro 00h obligatory, see DS301
1017h 0 heartbeat time unsigned 16 rw 1388h heartbeat time in ms, range: 0 ... 65535
1018h identity object record ro
0 number of entries unsigned 8 ro 04h largest sub index
1 manufacturer ID unsigned 32 ro 000001C0h 000001C0h
2 product code unsigned 32 ro 12D5C74Ch 12D5C74Ch
3 version number unsigned 32 ro 1000 device specific
4 serial number unsigned 32 ro device specific
1800h transmit PDO1 parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 COB-ID unsigned 32 rw 180h
+NodeID
COB-ID used by PDO, range: 181h ... 1FFh, may
be changed when switched off (bit 30 must be
set always, means no TPDO triggered to RTR)
2 transmission type unsigned 8 rw FFh cyclic + synchronous, asynchronous;
values: 1 … 240, 254, 255
5 event timing unsigned 16 rw 1F4h event time in ms for asynchronous TPDO1, value
must be multiple of 50 and max 12700
1801h transmit PDO2 parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 COB-ID unsigned 32 rw 280h
+NodeID
COB-ID used by PDO, range: 281h … 2FFh,
may be changed when switched off (bit 30 must
be set always, means no TPDO triggered to
RTR)
2 transmission type unsigned 8 rw FFh cyclic + synchronous, asynchronous;
values: 1 … 240, 254, 255
5 event timing unsigned 16 rw 1F4h event time in ms for asynchronous TPDO2
range: 0 ... 65000
1802h transmit PDO3 parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 COB-ID unsigned 32 rw 380h+NodeI
D
COB-ID used by PDO, range: 381h … 3FFh,
may be changed when switched off (bit 30 must
be set always, means no TPDO triggered to
RTR)
2 transmission type unsigned 8 rw FFh cyclic + synchronous, asynchronous;
values: 1 … 240, 254, 255
5 event timing unsigned 16 rw 1F4h event time in ms for asynchronous TPDO3
range: 0 ... 65000
1A00h TPDO1 mapping parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 PDO mapping for first application object to
be mapped
unsigned 32 co 20000220h operation hours time stamp of measurement,
4 byte
2 PDO mapping for second application object
to be mapped
unsigned 32 co 20010108h ISO4µm, 1 byte in 2001h, sub 01
3 PDO mapping for third application object to
be mapped
unsigned 32 co 20010208h ISO6µm, 1 Byte im 2001h, sub 02
4 PDO mapping for fourth application object to
be mapped
unsigned 33 co 20010308h ISO14µm, 1 Byte im 2001h, sub 03
5 PDO mapping for fifth application object to
be mapped
unsigned 32 co 20010408h ISO21µm, 1 Byte im 2001h, sub 04
1A01h TPDO2 mapping parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 PDO mapping for first application object to
be mapped
unsigned 32 co 20000220h operation hours time stamp of measurement,
4 byte
2 PDO mapping for second application object
to be mapped
unsigned 32 co 20020108h SAE4µm, 1 byte in 2002h, sub 01
3 PDO mapping for third application object to
be mapped
unsigned 32 co 20020208h SAE6µm, 1 byte in 2002h, sub 02
4 PDO mapping for fourth application object to
be mapped
unsigned 33 co 20020308h SAE14µm, 1 byte in 2002h, sub 03

Patrick the Particle Counter
Operating Instructions
© Hydrotechnik GmbH • All rights reserved
Rev. 1.8 / 2012-11-29 • L3160-00-76.00EN
Page 20 of 21
5 PDO mapping for fifth application object to
be mapped
unsigned 32 co 20020408h SAE21µm, 1 byte in 2002h, sub 04
1A02h TPDO3 mapping parameters record
0 number of entries unsigned 8 ro 05h largest sub index
1 PDO mapping for first application object to
be mapped
unsigned 32 co 20000120h operation hours time stamp of measurement,
4 byte
2 PDO mapping for second application object
to be mapped
unsigned 32 co 20030108h oil condition bits, 1 byte
3 PDO mapping for third application object to
be mapped
unsigned 32 co 20030708h measuring bits, 1 byte
4 PDO mapping for fourth application object to
be mapped
unsigned 32 co 20030808h sensor status bits, 1 byte
5 PDO mapping for fifth application object to
be mapped
unsigned 32 co 20040008h temperature, 1 byte
time related sensor parameters record
0 number of entries unsigned 8 ro 02h largest sub index
1 operation hours counter1unsigned 32 ro sensor operation time in seconds
2000h
2 operation hour time stamp of measurement1unsigned 32 ro time stamp of last measurement
ISO measurement record
0 number of entries unsigned 8 ro 04h largest sub index
1 ISO4µm1unsigned 8 ro
2 ISO6µm1unsigned 8 ro
3 ISO14µm1unsigned 8 ro
2001h
4 ISO21µm1unsigned 8 ro
SAE measurement record
0 number of entries unsigned 8 ro 04h largest sub index
1 SAE4µm1unsigned 8 ro
2 SAE6µm1unsigned 8 ro
3 SAE14µm1unsigned 8 ro
2002h
4 SAE21µm1unsigned 8 ro
offset of two to display 000, 00 and 0, valid for all
classes:
0 = SAE 000
1 = SAE 00
2 = SAE 0
3 = SAE 1
4 = SAE 2 …
condition monitoring bit field array
0 number of entries unsigned 8 ro 08h largest sub index
1 oil-specific bits1unsigned 8 ro 0 = conc.limit exceeded (C >= ISO 23)
1 = high flow rate (F > 400)
2 = low flow rate (F < 50)
3 = measured values not plausible (air ...)
ISO (i+1) >= ISO(i)
2 reserved unsigned 8 ro
3 reserved unsigned 8 ro
4 reserved unsigned 8 ro
5 reserved unsigned 8 ro
2003h
6 reserved unsigned 8 ro
7 measurement information1unsigned 8 ro 0 = measurement in progress
1 = auto measuring mode
2 = I/O measuring mode
3 = manual measuring mode
4 = alarm mode filter / standard
8 sensor alarm1unsigned 8 ro 0 = laser voltage high (I > 2,8 mA)
1 = laser voltage low (I < 1 mA)
2 = photo voltage high (U > 4V)
3 = photo voltage low (U < 4V)
4 = temperature high (T > 80°C)
5 = temperature low (T < -20°C)
2004h 0 sensor temperature1signed 8 ro oil temperature in °C
2005h 0 flow rate index unsigned 16 ro flow rate index (0 … 400)
2020h command unsigned 8 wo 1 = start measurement
2 = stop measurement