Kanomax 3444 User manual

Digital Dust Monitor
Model 3444
User’s Manual

1
List of Components
■Standard
Items
Model
Quantity
Main Body
3444-00
1
Pump Filter
3444-60
Built-in:1
Spare:1
Purge Filter
3442-03
Built-in:1
Spare:1
Shoulder belt
-
1
AA Battery
-
6
LCD protection sheet
3444-61
1
USB cable
3444-20
1
Measurement Software
3444-40
1
User’s Manual
-
1
■Available Accessories
Items
Model
AC adapter
3444-10
USB cable
3444-20
Output cable (Analog)
3444-30
I/O cable (Communication)
3444-21
Pump Filter
3444-60
LCD protection sheet
3444-61
Protector
3444-70
Cover
3444-71
L-shape tripod bracket
3444-72
Tube connection inlet adapter
3444-73
Cyclone connection adapter
3444-74
Purge Filter
3442-03

2
Important Safety Information
The symbols for the warnings used in this manual are defined below:
Classifications
Danger
Warnings in this classification indicate a danger that may result in
serious injury or death if not observed.
Caution
Warnings in this classification indicate a risk of damage to the
product that may void the product warranty if not observed.
Important
This symbol indicates that the product may be subject to physical damage or
performance may not be guaranteed if this symbol is ignored, and the product is
handled improperly.
Description of Symbols
△ symbol indicates a condition that requires caution (including
danger). The subject of each caution is illustrated inside the triangle
(e.g., the high temperature caution symbol is shown on the left).
symbol indicates a prohibition. Do not take the prohibited
action shown inside or near this symbol (e.g., the disassembly
prohibition symbol is shown on the left).
● symbol indicates a mandatory action. A specific action is given
near the symbol.

3
Danger
(Disassembly prohibited) Never disassemble, modify, or repair the product.
Short circuits and adjustment malfunctions may cause performance to be
unmaintained.
(Prohibition of use) When using AC power, use the optional dedicated AC adapter.
Failure to do so may cause malfunction.
There is a risk of overheating and ignition, which may lead to fire or accident.
(Prohibition of use) Do not use the main unit where the ambient temperature
exceeds 40°C.
Doing so may cause a short circuit or fire.
(Correct handling) Please follow the instructions in this instruction manual to use
the product correctly.
Improper use may cause electric shock, ignition, or damage.
If abnormal noises, smells or smoke occur, or if liquid enters
the instrument, turn off the instrument immediately, and
remove the batteries or pull out the plug.
There is possibility of malfunction, electric shock, and/or fire. Please
contact your local distributor or our service center for repair.
Caution
(Handle correctly) Always unplug the instrument from the electrical outlet when
the instrument is not in use.
Failure to do so may cause an electrical shock, fire or circuit damage.
(Handle correctly) When using the optional AC adapter, make sure there is no dust
on the power plug. Check the power plug for dust. Use a dedicated 100-240 V
outlet for the power supply.
Failure to do so may cause ignition.

4
Important
(Prohibition) Do not measure this unit in a place with high temperature,
low temperature, or high humidity. Also, do not leave the unit in direct sunlight for
long periods of time.
The product may not operate properly outside the operating temperature range.
Use within the operating range.
(Prohibited) Do not apply strong shocks to the unit or place heavy objects on it.
Dropping or crashing may cause malfunction or damage.
(Prohibited) When cleaning, do not wipe the unit with solvents such as thinner or
benzene.
The case may be deformed or altered. When the case gets dirty, wipe it dry with a
soft cloth. If the case is heavily soiled, wipe it dry with a cloth moistened with
neutral detergent.
(Prohibited) Do not touch the unit while it is charged.
It may affect the measured value or cause damage to the circuitry of the main unit.
(Prohibited) Do not move this unit suddenly from a cold to a warm place as this may
cause condensation.
Even within the appropriate temperature and humidity range, condensation may
occur due to sudden temperature changes. Dew condensation on metal parts may
cause rust, which may lead to malfunction.
(Handle properly) When storing, store in a non-condensing location between -10
and 45°C (-10 and 45°F).
(Handle correctly) When using at high concentrations (100 CPM) or higher, clean
the unit after each measurement.
Leaving the optical system unattended after measurement may cause
contamination inside the optical system, resulting in incorrect measurement.
(Prohibited) When disposing of the product, do not throw it away with general
garbage.
Dispose of the unit and optional AC adapter in accordance with applicable laws and
regulations. Or please contact your distributor.

5
Laser class
This device is a Class 1 laser product based on the following standards.
● EN60825-1: 2014
Handling of Laser Light
DANGER-This device uses a Class 3B laser diode as the sensor light source
inside the main case. Never open or close the main unit case or disassemble the
internal optical components.
CAUTION - Control or adjustment by procedures other than those specified here
will result in hazardous laser radiation exposure.
Wavelength
790nm
Maximum output
4.5mW
Beam radiation angle
20-45°
（Vertical）
8-15°
（Horizontal）
CLASS 1 LASER PRODUCT
EN60825-1: 2014

6
Table of Contents
Part Names and Functions ........................................................................................... 8
1.1 Overview........................................................................................................................................... 8
1.2 Principle of Measurement .............................................................................................................. 8
1.3 Part Names and Functions............................................................................................................. 9
1.4 How to attach the shoulder strap............................................................................................... 12
Getting Started.......................................................................................................... 13
2.1 Power supply.................................................................................................................................. 13
2.1.1 Installing Batteries............................................................................................................ 13
2.1.2 Connecting the AC adapter............................................................................................. 13
2.2 Precautions during storage and transportation of the unit .................................................... 15
2.3 Cleaning.......................................................................................................................................... 16
2.4 User calibration.............................................................................................................................. 17
Screen Descriptions and Operating Procedures .......................................................... 18
3.1 Startup screen ............................................................................................................................... 18
3.2 Initial Screen.................................................................................................................................. 19
3.3 Screen during measurement....................................................................................................... 21
3.4 Menu ............................................................................................................................................... 22
3.4.1 MEASURE MODE................................................................................................................ 23
3.4.2 CALIBRATION .................................................................................................................... 36
3.4.3 FILE ..................................................................................................................................... 38
3.4.4 UTILITY............................................................................................................................... 41
3.5 Serial Communication .................................................................................................................. 50
3.6 Measurement Procedure .............................................................................................................. 51
Replacement of Consumables .................................................................................... 52
4.1 Replacing the filter........................................................................................................................ 52
4.1.1 Purge filter replacement .................................................................................................. 52
4.1.2 Pump filter replacement................................................................................................... 53
4.2 Replacing the LCD protective sheet ........................................................................................... 54
Optional Products ...................................................................................................... 55
5.1 Tube connection inlet adapter..................................................................................................... 55
5.2 Cyclone connection adapter ........................................................................................................ 56
5.3 Tripod Fixing L Angle .................................................................................................................... 57
5.4 Protector......................................................................................................................................... 58
5.5 Dust monitor Cover ...................................................................................................................... 59
5.6 Output cable (Analog).................................................................................................................. 60

7
5.7 I/O cable (Communication)......................................................................................................... 61
Specifications ............................................................................................................ 62
Trouble Shooting ....................................................................................................... 64
7.1 Check power .................................................................................................................................. 64
7.2 Checking during measurement................................................................................................... 64
7.3 Background check......................................................................................................................... 65
7.4 Sensitivity check............................................................................................................................ 66
7.5 Calibration check........................................................................................................................... 67
7.6 Analog output ................................................................................................................................ 67
7.7 Pulse output ................................................................................................................................... 68
7.8 Alarm output.................................................................................................................................. 68
7.9 Date and Time Setting ................................................................................................................. 68
Warranty and After-Sales Service............................................................................... 69
Contact Information .................................................................................................. 70

8
Part Names and Functions
1.1 Overview
This product (Model 3444) is a light scattering portable dust monitor using a semiconductor
laser light source. Measurement data can be displayed on the LCD screen and stored in the
internal memory. Stored data can be read out with the included software.
<Features>
・With the use of pump-type suction, dust measuring in like asbestos environments are capable.
・Color LCD display used.
・User calibration can be performed by operating the screen and the sensitivity control knob.
・Free to read out measured data with data logging function.
・Uses non-volatile memory for storing calibration parameters and correction values
・Type-C USB interface and an included USB cable for communication.
・Can be powered by AA batteries or an optional AC adapter (3444-10).
・Be capable of outputting analog/pulse/alarm signal by using an optional output cable
(3444-30), also capable for communicating with external devices.
・Capable with commercial camera tripod by using the tripod hole on side of the unit.
Also, attach an optional protector (3444-70) is capable for preventing the impact by falling.
※The protector cannot completely guarantee that the unit will not be damaged.
Depending on the environment and the level of fall, the unit could still be damaged even with
a protector.
1.2 Principle of Measurement
By the scattering light generated by the laser light irradiating on the dust particles,
is proportional to the mass concentration. The main unit could measure the mass
concentration of dust particles suspending in the air.

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1.3 Part Names and Functions
⑤△▽key
④SET key
③mg/m3 key
②START/STOP
key
①POWER key
⑫Filter open/close knob
⑥MEMU
key
⑬belt clasp
⑦Display
⑧Sensitivity control knob
⑨Inlet
⑪Filter holder
⑮Pump Filter Cap
⑰I/O Connector
⑱USB Type-C Connector
⑯AC adapter jack
⑩Inlet cover
⑲Screw hole for
tripod fixing
⑭Exhaust port

10
Name
Function
①POWER key
Turn power on/off
②START/STOP key
Start/stop measurement and cleaning.
③mg/m3 key
Displays the mass concentration after the measurement is
completed in each measurement mode.
④SET key
Set items and numerical values.
⑤△▽ key
Select items and increase/decrease numerical values.
⑥MEMU key
Calls up the menu screen.
⑦Display
Displays measured values and menus
⑧Sensitivity control knob
This knob is used for doing the sensitivity adjustment.
Turn the knob toward to “FULL”, check if there is any significant
change in the standard CPM value.
(Refer to “2.4 User Calibration.)
Please keep the knob at the “ZERO” side except doing sensitivity
adjustment. To switch the knob, please press the knob first
and rotate it toward the side needed.
⑨Inlet
Sample air inlet with a built-in filter inside for removing coarse
particles.
⑩Inlet Cover
The inlet can be closed and opened by moving it up and down.
Raise (close) the cover for background adjustment, sensitivity
adjustment, and cleaning.
⑪Filter holder
There is a built-in filter used for background adjustment,
sensitivity adjustment, and cleaning.
(See “4.1.1 Replacing the purge filter” for details.)
⑫Filter open/close knob
Pull out the knob when doing background adjustment,
sensitivity adjustment, and cleaning.
⑬Belt clasp
Attach the shoulder strap.
⑭exhaust port
Air outlet of the internal pump.
Do not block the air exhaust port when device is in operation.
⑮Pump Filter Cap
A built-in filter inside for pump protection.
(See “4.1.2 Replacing the pump filter” for replacement
instructions.)
⑯AC adapter jack
Connect the optional AC adapter (3444-10).

11
⑰I/O Connector
Connect the optional output cable (analog) (3444-30).
Analog output: Outputs a voltage equivalent to 0 to 1 V for 0 to
1,000 CPM or 0 to 10,000 CPM.
Analog output: A voltage equivalent to 0 to 1 V is output for 0 to
1,000 CPM or 0 to 10,000 CPM.
Load impedance should be set at 1kΩ or higher.
Instantaneous value will be outputted linearly in the range.
Pulse output: Pulses equivalent to 0.0166 Hz to 166.6 Hz are
output for 1 to 10,000 CPM. Photo-coupler output. (No-voltage
output)
Alarm output: Outputs when the alarm setpoint is exceeded.
It is a photocoupler output (no-voltage output) and is turned on
when an alarm is detected.
RS-232C communication is available by connecting optional I/O
cable (communication) (3444-31).
⑱USB Type-C Connector
Connect the included USB cable for communication.
⑲Screw hole for tripod
fixing
Use this screw to secure the main unit to the tripod.
(Screw hole diameter 1/4-20UNC)

12
1.4 How to attach the shoulder strap
Pass the end of the shoulder belt through the hole in the belt clasp of the dust monitor, fold
it back and secure it through the shoulder belt attachment. Adjust the length of the shoulder
strap by the length of the belt that goes through the attachment.
Buckle
shoulder strap
Belt clasp

13
Getting Started
2.1 Power supply
The instrument can be powered by batteries or an optional dedicated AC adapter (3444-10).
Please set the battery or optional AC adapter.
2.1.1 Installing Batteries
① Press the battery box lid claw in the
direction of the arrow.
② Lift the lid in the direction of the arrow
while holding the claw.
③ Insert the battery. (*Please set the
battery polarity correctly.)
Use 6 AA manganese, alkaline, or Ni-MH
batteries. Be sure to use the same type of
batteries. Using a combination of different
types of batteries may cause leakage or
damage to the main unit.
When replacing batteries, be sure to
replace all batteries with new ones. Mixing
used old batteries with new batteries may
shorten the usable time, cause leakage, or
damage the main unit.
*The AC adapter cannot be used to charge
batteries.
④ Close the lid in the reverse order.
*To avoid contact failure due to battery corrosion, remove the batteries from the battery box
when not in use for an extended period of time.
Types of batteries that can be used
①
②
・Manganese battery (AA type)
・Alkaline battery (AA type)
・Ni-MH battery (AA type)
①
②
③

14
2.1.2 Connecting the AC adapter
Insert the AC adapter into the AC adapter jack on the
side of the main unit.
The AC adapter has priority to the batteries.
Please remove the batteries from the box if not in use for
a long period, or it may cause contact failure due to
battery corrosion.
Warning: Please use the optional dedicated AC
adapter (Model 3444-10) as it may cause
malfunction.
◆Battery level
Battery level display the AC adapter in use
→→→
As the battery decreases, the display changes as shown above.
<<Caution>>
The remaining battery charge is displayed in 10 levels. When the remaining
battery charge is low, the battery display would turn out to red.
Please connect the optional AC adapter (3444-10) instead or stop the
measurement and replace the batteries with new ones.
The display(measurement) will be shut down when run out of battery.
The remaining battery level is
displayed in the upper right corner
of the screen.
AC adapter jack

15
2.2 Precautions during storage and transportation of the unit
◆Precautions for storing the main unit
CAUTION: When not in use for an extended period of time, remove the
battery in use from the battery compartment. Corrosion of the batteries
may cause contact failure.
◆Precautions for transporting the main unit
CAUTION: If you are shipping the unit, please remove the batteries from
the battery compartment as described above.
CAUTION: When transporting the main unit by yourself, remove the
battery in use from the battery box in the same manner as described
above.

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2.3 Cleaning
To maintain the accuracy of instrument, the instrument must be cleaned before use.
(In the case of a one-day use, please clean before and after the first and last measurement.)
①Make sure the ambient atmosphere is clean and pull out the filter open/close knob.
②Raise the inlet cover up and then turn it clockwise to lock it.
③Set the sensitivity control knob to the “ZERO” side.
④Press the [POWER] key to turn on the power.
⑤Press the [MENU] key to display the menu screen.
⑥Press the [▽] key (or the [△] key), move the cursor to “Utility” and press the [SET] key to
enter the Utility screen.
⑦Move the cursor to “Cleaning” and press the “SET” key to enter the cleaning screen.
(See 3.4.4 A) Cleaning.)
⑧Press the [START/STOP] key to start cleaning.
⑨Clean the unit for 5 minutes.
*The time required for cleaning varies depending on the operating environment.
⑩Press the [START/STOP] key to finish cleaning.
*To minimize the time spent for cleaning as much as possible, please clean the optical
system by the method described above immediately after measurement if the
measurement was performed in a high concentration environment (100 CPM or higher)
or a long continuous measurement.
If the instrument is left without cleaning, residual dust may accumulate inside the optical
system, resulting in reduced measurement accuracy or calibration failure.
*Cleaning should be performed in a clean place.
Also please do not start the cleaning when someone is smoking nearby.
It may cause errors and damage the instrument.
△▽ key
START/STOP key
MEMU key
Filter open/close knob
POWER key
Sensitivity control knob
①
②
③
④
⑤
⑥
⑧
⑩
Inlet cover
Filter open/close knob

17
2.4 User calibration
To maintain the accuracy of instrument, please perform user calibration before use.
(In the case of a one-day use, please do the user calibration before the first measurement.)
User calibration includes background adjustment and sensitivity adjustment (SPAN).
Please run background adjustment and sensitivity adjustment in the order.
①Please finish the cleaning process (see “2.3 Cleaning”) before starting user calibration.
②Please warm up the instrument (over 20 minutes) before starting user calibration,
or the calibration may not be performed precisely.
③Pull out the filter open/close knob.
④Raise the inlet cover up and then turn clockwise to lock it up.
⑤Please do the background adjustment first,
switch the sensitivity control knob to “ZERO” side.
⑥Press the [MENU] key to display the menu screen.
⑦Press the [▽] key (or the [△] key), move the cursor to “User Calibration” and press the
[SET] key to display the User Calibration screen. (Refer to 3.4.2 User Calibration.)
⑧And then do the sensitivity adjustment. Set the sensitivity control knob to “FULL” side.
⑨Execute steps ⑥ and ⑦ above.
⑩After finishing all the adjustments, set the sensitivity control knob back to “ZERO” side.
*Be sure to perform user calibration before measurement if the instrument is used under
severe conditions (high concentration) or if it is frequently used.
*Please must do the cleaning process and warm up the instrument (over 20 mins) before
starting calibration.
Note that calibration cannot be performed accurately if the warm-up operation is not
sufficient.
*If a “Calibration error” message appears on the display, please perform the cleaning
process again.
Filter open/close knob
Inlet cover
Filter open/close knob
④
③
⑥
⑦
△▽ key
START/STOP key
MEMU key
Sensitivity control knob
POWER key

18
Screen Descriptions and Operating Procedures
3.1 Startup screen
Press the [POWER] button to turn on the power,
which will display the startup screen and warm up
the unit for 10 seconds.
Screen will display the model’s name, version,
serial number and remaining warm-up time.

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3.2 Initial Screen
After the warm-up is completed,
the screen shown below will be displayed.
＜Explanation of each part＞
①Date, time
②Battery level
(See “2.1 Power supply”)
③Relative concentration bar
④Measure value
⑤Unit
⑥Time graph during measurement
⑦Remaining time of measurement
The remaining time will be updated together
with the bar graph below when starting a
measurement.
In manual mode, it will show the elapsed time
instead.
⑧Bar graph
Indicates the time remaining for measurement.
Bar graph is not displayed in manual mode.
⑨Measurement state
standby under measurement
⑩Save setting
ON OFF
*Data can only be saved in standard and
calculate mode.
Data saving will be turned off when other
modes are selected.
Data will not be saved if you start measurement
with data saving OFF.
⑪Measurement mode
The selected measurement mode is displayed.
・Standard mode
・Free mode
・Manual mode
・TWA (Time Weighted Average) mode
・Calculation mode
⑨
⑩
③
④
⑤
①
②
⑦
⑧
⑪
⑥