Naneos Partector Manuel utilisateur
Partector
Aerosol Dosimeter
Operation Manual
English
September 2019
A nanoparticle dosimeter for easy workplace exposure monitoring
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Document information
© naneos particle solutions gmbh, 2019
Related device versions : V2_3, V2_4
Related firmware versions : >397
Document Date: 2019-09-20
Document Revision : K
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Abbreviations
DC diffusion charging, diffusion charger
HV high voltage
LED light-emitting diode
LDSA lung deposited surface area
SD micro Secure Digital memory card
Safety information
General notes and warnings
This operationmanual must be read completely before using the partector.
Incorrect use or handling and any consequences arising from this may
damage the device or endanger personnel.
The manufacturer declines all liability resulting from incorrect use and
handling.
Safety notes
Never operate the instrument at condensing conditions.
Do not blow into the instrument.
Do not open the partector as you may damage it.
Do not operate the partector with an open charger hatch.
The partector is a sensitive instrument made for measuring nanoparticles.
Sampling too much coarse dust will eventually lead to deteriorating
instrument performance. Use a cyclone when measuring in environments
where large number of microparticles might be present.
Do not operate the partector in an explosive atmosphere or in the
presence of flammable gases or fumes.
Have your instrument recalibrated once a year.
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Instrument specifications
Measured value: LDSA (Lung Deposited Surface Area)
Concentration range: 0-20’000 m2/cm3
Particle size range: 10 nm to 10 m
Displayed LDSA value is only accurate in the size
range of 20-400 nm; however, the instrument can
be used to measure micron-sized particles too.
Accuracy: ± 30 %
Noise floor: ~ 1 m2/cm3 in particle-free air
Time resolution: 4s (standard, faster as an option)
Airflow (active): 0.5 l/min
Battery power: 10h approximately
Charging: via USB
Data storage: SD-card
PC Interface: USB/serial by virtual COM-Port
Dimensions: 7.8 x 13.4 x 2.9 cm
Weight: 400 g
Checking the shipment contents
When unpacking the device, verify that you have received the following
items. If any of the components are missing or damaged, contact naneos.
Type
Items
Standard
Partector device
USB cable
SD-card 2 GB
SD/SD-card adapter or SD/USB-adapter
Neoprene sleeve (optional)
USB charger
Peli case
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Getting started
Instrument description
The partector is a portable, battery powered instrument to measure the
lung deposited surface area (LDSA) of nanoparticles. It displays the
measured data on a graphical display and stores it on a SD card. A user-
defined LDSA alarm level can be set. If the alarm level is exceeded, the
instrument’s internal buzzer is turned on to produce an audible warning.
Figure 1: Partector main parts
1 inlet 5 right soft key 9 USB Port
2 power button 6 middle soft key 10 charge LED
3 DC charger hatch 7 left soft key
4 display 8 SD card slot
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Aerosol inlet and outlet
The aerosol inlet is located at the top of the instrument. The internal pump
provides an air flow of about 0.5 l/min. The standard aerosol inlet has a 6
mm barb for tubing connection and contains a coarse wire mesh to keep
coarse dirt and small insects out of the instrument.
The air exits the device via the USB-port and SD-card
opening in the housing. Note that the air is not filtered
internally, so do not connect the instrument to hazardous
nanoparticle sources!
Tubing
When using the Partector with tubing (to attach the optional cyclone, or
for other purposes), make sure not to use conductive silicone tubing.
This type of tubing is frequently used because with conductive tubing,
there are no electrostatic losses of particles, and the silicone tubing is
very flexible. Unfortunately, this type of tubing releases silanes which
leed to rapid fouling of the Partector's corona wire. We recommend using
PVC tubing instead –a nice flexible version is Tygon S3 E-3603. If in
doubt about using tubing, please contact us. In any case, tubing should
only be as long as necessary to prevent particle losses in the tubing.
Supplying power
To charge the partector or to operate it for periods longer than the battery
lifetime, connect the partector USB port to a PC or Laptop or to a USB-
Charger to charge the device.
While charging, the blue charge LED on the front panel lights up. When
the partector is fully charged, it turns off.
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Turning the device on and off
To turn the device on, press the power button. To turn it off, press and
hold the power button for two seconds and release it when the goodbye
message appears.
Insert / remove SD-card
To store data on the microSD-card, insert it in the partector as shown in
the graph till it snaps in.
To remove the SD-card, press on the inserted card which will force the
release. To insert the card in your SD-card slot on a PC you need to insert
the card first in the SD/SD-card adapter or SD/USB adapter provided.
Recording measurements on the SD-card
If a SD-card is inserted in the partector at startup, the device
automatically starts recording on the SD-card when the device is turned
on. It automatically generates a filename depending on start date, time
and device serial. For more information about this, read the “partector data
file” section.
If you insert the SD-card while the device is running, the data
logging will not start automatically. You need to turn the device
on after inserting the card.
Do not remove the SD-card while the device is running. The
data file needs to be closed properly, otherwise it will be
corrupt.
Figure 2a: Inserting
the SD-card
Figure 2b: Inserting the SD-
card into the adapter
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Keypad functions & symbols
In the picture below you can see the partector display screens:
Figure 3: Partector menu screens
Home screen
On the home screen you can see the LDSA concentration, date and time
and also the charge state of the battery. If no key is pressed for more than
one minute, the display goes dark to prolong battery life. By pressing any
key, the display turns on again.
The lightning symbol indicates that the high
voltage in the charger is on and working properly.
The blinking red dot indicates that data is being
written on SD-Card.
The exclamation mark indicates that an error
occurred at some point during the current
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measurement.
Below the measurement value, you can see the
maximum value since turning on the device.
The approximate flow rate is displayed in yellow.
The flow is measured from the time delay
between charging pulse and electrometer signal;
therefore, at low measurement values, it cannot
be determined accurately. In this case, the
display changes to --- lpm.
Color coding of LDSA values
The LDSA display is color-coded to provide a quick assessment of air
quality. LDSA values below 50 m2/cm3 are displayed in green, values
above 250 m2/cm3 in red, and values in between in yellow.
Figure 4: color coding of LDSA values
Electrometer gain calibration
The partector contains an in-circuit electrometer gain measurement, which
is executed once per hour. The gain measurement takes 20s, and during
this time no LDSA measurement is possible. During the gain
measurement, the LDSA value is displayed in white in a sequence of first
000, then the gain value in % (approximately 100) and finally again 000.
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Figure 5: Display during gain measurement.
Measuring the gain periodically ensures that your data is correct, and
that the aging of the instrument is taken into account properly.
Info screen
The info screen displays device specific system information:
Serial: serial number of the device
Minutes: total operating time in minutes
LDSAmin: LDSA value integrated over time
Pulses: number of high voltage charging pulses
Calib: calibration factor
Date: date of calibration
Pressing the “status” soft button brings you to the status screen. Pressing
the “alarm” soft button brings you to the alarm screen.
Status screen
The status screen shows the most important device data.
RH,T internal relative humidity [%] and temperature [°C]
BATT battery voltage
ADC electrometer signal
HV charger corona voltage
Idiff charger diffusion current
Config screen
In the config screen, you can change some settings of the partector
Alarm level: use the “up” and “down” soft key to change the alarm level
to the desired value. When the measurement value exceeds the alarm
level, the internal buzzer of the partector will produce an audible warning.
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