Kanomax 3720-06 User manual

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Laser Particle Sensor
MODEL 3720-06
Intense Light Particle Sensor
User's manual

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Component List
◆ standard
ITEM
MODEL
QTY
3720-06 Main unit
3720-06
1
AC adapter (DC24V)
-
1
Zero filter
-
1
Manual
-
1
◆ optional Extras
ITEM
model
volume
USB-RS485 converter
3720-06-
20
1
RS232C-RS485
converter
3720-06-
21
1
Constant velocity
suction probe
3905-07
1
Pump Unit
3720-06-
22
IP65 Protective Case
3720-06-
23
Contact KANOMAX for information on purchasing optional products.

iii
Important Safety Information
In this manual, warning types and classifications are defined as follows:
[Classification]
WARNING: To Prevent Serious Injury or Death
Indicates a potentially hazardous situation which, if not avoided, may result in
serious injury or death.
CAUTION: To Prevent Damage to the Product
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to the product that may void the product warranty.
[Description of Symbols]
△Indicates a condition (including danger) that requires caution. The subject of each caution
is illustrated inside the triangle (e.g., the symbol shown to the left is the high temperature
caution).
Indicates a prohibition. Do not take the prohibited action shown inside or
near this symbol (e.g., The symbol shown to the left prohibits disassembly).
⚫Indicates a mandatory action. A specific action is described near the symbol.
WARNING
◆Do not disassemble, modify or repair the instrument.
…… Misuse of the instrument may result in electric shock, fire, or
damage to the instrument, etc.
…… A 3B laser diode is used as the optical source inside the
instrument. Therefore, never attempt to disassemble the
instrument as it is extremely dangerous.
Do not
modify/disassemble

iv
◆Use this instrument properly by carefully following this User's
Manual.
…… Misuse of the instrument may result in electric shock, fire, or
damage to the instrument. etc.
◆If any abnormal noises, unusual odors or smoke are observed, or
any liquid enters the instrument, turn the power off immediately,
remove the battery and disconnect the power cable.
…… It may result in electric shock, fire or damage to the instrument.
Contact your distributor or your KANOMAX service center for
repair.
Prohibition
◆Do not install the instrument where it will be
exposed to rain and/or water drops.
…… It may result in electric shock, fire, serious
injury or death.
Handle
Properly.
Water
drops

v
Table of Contents
1. Names and movements of each part ................................................................. 1
1.1 Overview .............................................................................................................1
1.2 Description of each part............................................................................ 1
1.3 USB-RS485 Converter ............................................................................ 3
1.4 LAN Connection ...................................................................................................4
2. Preparation before measurement ..................................................................... 5
2.1 Power source........................................................................................................5
2.1.1 Adapter used......................................................................................... 5
2.1.2 DC power supply used ............................................................................ ..5
2.1.3 POE Switch.............................................................................................. ..6
2.2 Parameter Setting ...............................................................................................6
2.3 Check condition of vacuum source............................................................. 7
2.4 Analog output terminal connection......................................................................7
2.5 RS485 pin connection..........................................................................................9
2.6 Filter Connection................................................................................................10
3. Measurement method.............................................................................................. 10
4. Major Standards ....................................................................................................... 11
5. I thought it might be a malfunction....................................................................13
6. Product Warranty and After-Sales Service...................................................................15
6.1 Product Warranty..............................................................................................15
6.2 After-sales service ..................................................................................15

1. Names and movements of each part
1.1 summary
This product (Model 3720-06) is a light scattering laser particle
counting sensor using a laser diode as a light source. Measurement data can be output
with a current of 4 ~ 20 mA.
Can be connected to the EP-CRMS system for long-term
measurements in a clean room environment.
Status lamps can indicate LD errors and flow errors.
Alarm output is issued when particles above the alarm-set concentration are detected
according to the alarmsettings.
1.2 Part Names and Functions
(Unit: mm)
1.2
約200
125
➀
②
③
④
⑤
⑥
⑦
52
232
Model 3720-06
200

Number
name
Function
①
inlet
Sampling air suction port. A clean pipe can also be attached to
the suction port for measurement.
Never block the suction opening during measurement, as this
will result in malfunction.
Please do so.
②
Analog
output
terminal
DC power input, analog output terminal, and alarm output
terminal. See "2.4 Analog Output Terminal
Connection" for detailed functions.
③
RS485
port (e.g.
LAN port)
MODBUS RTU communication connection terminal; connect a USB-
RS 485 converter (converter + cable); the PC side can set
parameters and read counts of this unit. (Refer to
"2.5 RS 485 Terminal Connection" for details.
④
power jack
DC power jack. Use the supplied AC adapter. See "2.1.1 Adapter
Use" for details.
⑤
LAN connector
MODBUS RTU communication connection terminal. Connect a router
or POE switch to this terminal, which allows the PC side to set
parameters and read counts of the unit.
See "1.4 LAN Connection" for details.
⑥
PARTICLE.
lamp
LED is orange; LED flashes each time a particle is detected. The
light turns off when no pa-particles are
detected.
⑦
STATUS
lamp
When the flow rate and LD status are normal, the LED is lit green. If
the flow rate or LD is abnormal, the lamp will light up red.
⑧
exhaust port
3720-06 is treated by a built-in filter to discharge the gas.
Never block the exhaust port during measurement, as this
will result in malfunction.

1.3 USB-RS485 converter
For information on purchasing the optional USB-RS 485 converter MODEL 3720-
06-20, contact your distributor or agent. If you wish to prepare your own USB-RS
485 converter, please refer to the following instructions.
Connection method
The following is the connection method between this product, the USB-RS 485 converter, and
a PC.
How to connect RS485 terminal andUSB- RS485
converter
3720-06 Main unit
USB-RS485 converter
pref
ace
RS485
terminal
pref
ace
RS485
converter
1
GND
1
GND
2
B
2
T/R-.
3
A
3
T/R＋
USB
RS485
PC
USB-RS485
When in open use, insulate unused terminals.

1.4 ConnectingLAN
This product is capable of MODBUS TCP communication through LAN, and can be
operated in EP-CRMS system.
Connection method
The connection between the product and the router is shown below.
Shows the connection between this product and the POE switch.
ROUTER
PC
POE Switch
Router
PC
If power is to be supplied by
the switch, a power-supply
standard Ethernet switch
compliant with IEEE 802.3 bt
POE must be selected
AC Adapter

2.1 power (button on TV, etc.)
2.1.1 Use adapter
◆Insert the AC adapter plug into the socket. Below are the AC adapter specifications
that come with the product.
Input Output Specification: Input AC 100-240V (50-60Hz), Output DC 24V 2.1A
Plug specifications
Internaldiameter2.1mm
2.1.2 Use DC power supply
Pin 7 of the analog pins can be used for Power (15-28V) and Pin 8 can be used for DC
power supply by using P-GND. (Note: Be careful not to wire in the wrong order.)
3720-06 Model roller conveyor terminal
If an AC adapter is not used, use a DC power supply with overload protection.
2. Preparation before measurement

2.1.3 Use POE switch
After connecting the LAN connector and POE switch, supply power to the main unit.
If a POE switch is used to provide power, a switch that complies with IEEE 802.3 bt POE
power delivery standards must be selected, otherwise damage to the monitoring system will
result.
2.2 Parameter Setting
Before measurement, parameter setting is required, please read
3720-06 MODBUS Communication Protocol before setting.
Connect the 3720-06, 3720-06 power supply, USB-RS485 converter (converter,
cable), PC or 3720-06, POE switch, router, and PC before setting parameters.
Sampling time setting: 1 second step set in the range of 1-60 seconds All data within the
sampling time period is totaled and output via analog output (4-20 mA).
This sampling time is common to all channels.
The factory default setting is 60 seconds.
Output range setting: Sets the particle count range and concentration range. 4-
20mA analog output is generated within the set range.
The setting range is shown below. This output range setting can be set
for each channel.
The factory default setting is 02 (0-100CNT).
Setup Code
Output
range
Count/Density
01
0-10CNT
count
02
0-100CNT
03
0-1,000CNT
04
0-10,000CNT
11
0-10CNT/cf
Concentration
12
0-100CNT/cf
13
0-1,000CNT/cf
14
0-1,000,000 CNT/cf
21
0-353CNT/m3
22
0-3,530CNT/m3
23
0-35,300CNT/m3
24
0-35,300,000 CNT/m3

Alarmsetting:Can be set within the range of 0-100% of the measurement range in 1% steps.
Alarm settings can be set for each channel.
An alarm is output when the number of particles detected exceeds the
concentration alarm value.
The following is a list of the most important
For details on alarm settings, refer to "2.4 Analog Output Terminal
Connection".
Please do so.
The factory default setting is 100 (each channel).
Address setting: Sets the address of the device. The setting range is 1-247. Used for
identification when multiple units are connected and used.
The following is a brief summary of the results of the study. The factory default
setting is 1.
Sensor communication settings: Configures communication settings for the monitoring
system. Configure the communication settings between this unit and the
host PC.
Baud rate: select from 9600, 19200, 38400 bps Data
bit: 8 bit
Parity: Select even, odd, or none Stop bit:
Select 1 bit or 2 bits
The factory default settings are 9600 bps, 8 bit, none, and 2 bit.
Error output setting: When flow rate or LD error is detected, current output is
performed or not performed.
ON: The current output is changed according to
the contents of the abnormality. OFF:
Measured value is output even if an
abnormality is detected.
*Please set according to the system to be connected.
2.3 Check condition of vacuum source
The status of the vacuum source can be checked by the STATUS lamp on the main unit or
by the output current from analog output pins 9-12. 1-1.8 mA or 3-3.8 mA output
current outside the range of pin 9-12 indicates a normal condition.
However, this output is enabled when the error output setting in
2.2 Parameter Setting isON.
2.4 Analog output connection
The connector of the analog output terminal of this unit has an automatic lock
function. When attaching or detaching lead wires, press the lock button (orange part)
on the connector to unlock it. The connector is in the locked state when the lock
button is released. For connection, remove the coating from the tip of the lead wire
before insertion.
The analog terminal connector is removable, but should be kept in place as much as
possible to prevent loss.

connector
lock
button
3720-06 Analog output terminal
The analog output pins are described below.
terminal
number
3720-06 Signal
name
Function
Descript
ion
1
ALM.ch1
Channel 1 measurement particle count or concentration
output upon alarm detection
terminal. The contact specification for this terminal is 60 V
0.4 A or less. This
Use within the range of
2
ALM.ch2
Channel 2 measurement particle count or
concentration output upon alarm detection
terminal. The contact specification for this terminal
is 60 V 0.4 A or less. Use within this range.
3
ALM.ch3
Channel 3 measurement particle count or
concentration output upon alarm detection
terminal. The contact specification for this terminal
is 60 V 0.4 A or less. Use within this range.
4
ALM.ch4
Channel 4 measurement particle count or
concentration output upon alarm detection
terminal. The contact specification for this terminal
is 60 V 0.4 A or less. Use within this range.
5
ALM.COM
Minus common terminal of alarm output resistor.
6
A-GND
Minus common terminal for current output.
7
Power(15-
28V)
DC power "+" connection terminal.
8
P-GND
DC power "GND" connection pin.

9
PS.ch1
1. Channel 1 Current output terminal for the number of
particles or concentration of the measurement.
Output range is 4-20mA.
2. This output terminal is also used when a main unit flow
error or LD error is detected. The current output range for
flow error is 1-1.8 mA, and for LD error is 2-2.8 mA. When
flow rate and LD error occur simultaneously, the current output
range is 3-3.8 mA.
Note that this output is only available if the error
output setting in 2.2 Parameter Setting is set to
It is enabled when it is turned on.
10
PS.ch2
1. Current output terminal for particle count or concentration
for channel 2 measurement. The output range is 4-20mA.
2. This output terminal is also used when a main unit flow
error or LD error is detected. The current output range for
a flow error is 1-1.8 mA, and that for an LD error is 2-2.8 mA.
When flow rate and LD error occur simultaneously, the current
output range is 3-3.8 mA.
Note that this output is only available if the error
output setting in 2.2 Parameter Setting is set to
The setting is enabled when it is turned on.
11
PS.ch3
1. Current output terminal for the number of particles or
concentration of channel 3 measurement. Output range is
4- 20mA.
2. This output terminal is also used when a main unit flow
error or LD error is detected. The current output range for
a flow error is 1-1.8 mA, and that for an LD error is 2-2.8 mA.
When flow rate and LD error occur simultaneously, the current
output range is 3-3.8 mA.
Note that this output is only available if the error
output setting in 2.2 Parameter Setting is set to
The setting is enabled when it is turned on.
12
PS.ch4
1. Current output terminal for particle count or concentration
for channel 4 measurement. The output range is 4-20mA.
2. This output terminal is also used when a main unit flow
error or LD error is detected. The current output range for
a flow error is 1-1.8 mA, and that for an LD error is 2-2.8 mA.
When flow rate and LD error occur simultaneously, the current
output range is 3-3.8 mA.
Note that this output is only available if the error
output setting in 2.2 Parameter Setting is set to
The setting is enabled when it is turned on.
2.5 RS485 pin connection
3720-06 When setting parameters, first use the optional USB-RS 485
converter (converter).
＋Connect the RS 485 terminal to the PC using the RS 485 +
connection cable). Refer to 3720-06 MODBUS Communication Protocol for
setting parameters of the main unit.
RS485 terminal

-
2.6 Zero filter connection
Perform a zero check before measurement to verify the cleanliness of the optical system.
Connect the tube side of the filter to the adapter of the main unit.
Handle filters with care.
If air leaks between the filter and the main unit occur, correct zero check will not be
possible.
Zero-point
3.measurem
Make sure that "2. Preparation before measurement" in the instruction manual has
been completed.
For measurement, inhale sample air directly from the inlet of the 3720-06. Also, connect
the supplied Tygon tube to the inlet to inhale sample air.
Turn on the power to the 3720-06. T h e main unit will start measurement with
the parameters already set.
Failure is confirmed by the state of the main unit STATUS lamp, output current value of
the analog output terminal, alarm output state, etc.
If the problem is detected, investigate the cause of the problem by referring to "5. If the problem
persists, contact the place of purchase or KANOMAX. If the problem persists, contact the
place of purchase or KANOMAX.
If protection level IP65 is required, optional IP65 protection case (MODEL
(3720-06-23).
If the built-in vacuum source has exceeded its service life during continuous
operation, replace the pump assembly.
The product is capable of storing 5000 measurement data. Stored data includes storage
time, product status, and particle count values. Data is saved every sampling time
after the product is turned on. After more than 5000 pieces of data have been stored,
they are no longer stored and all stored data can be read back to perform a stored
data deletion operation. See 3720-06 MODBUS Communication Protocol for information
on how to read and erase stored data.

-
Name
Laser Particle Sensors
Model
3720-06
Exhaust Filters
built-in
particle size
division
0.5μm,5.0μm (2-4CH selectable from 0.5um, 0.7um, 1.0um,
3.0um, 5.0um, 10.0μm by customization. (Customers cannot change
CH by
themselves.)
Flow rate
28.3L/min(1CFM)
Light source
Laser Diode
counting
efficiency
ISO 21501-4, JIS B 9921
Maximum
permissible
concentration
1000,000CNT/ft3
Data Storage
5000 pcs.
Setting
Parameter
Sampling time : 1 sec-60 sec
Output range setting (set for each particle size)
Count: 0-10CNT, 0-100CNT, 0-1,000CNT, 0-10,000CNT
Concentrations: 0-10CNT/cf, 0-100CNT/cf, 0-1,000CNT/cf, 0-
1,000,000CNT/cf 0-353CNT/ m3, 0-3,530CNT/m3, 0-
35,300CNT/m 3
0-35,300,000 CNT/m3
Alarm setting: 0%-100
Address setting: 1-247
Error output setting: ON/OFF
sampling po
Built-in small brushless motor FAN
hr)*
(life time > 20,000
interface
Ethernet, RS485, analog output (4-20mA)
Communication
Modbus(TCP/IP), Modbus(RTU)
4. Mainspecifications

-
Power source
②AC Adapter AC adapter AC 100-240V (50-60Hz), DC 24V 2.1A
②Power supply DC 15V-28V 2.0A DC power supply DC 15V-28V 2.0A
③POE switch power supply 802.3bt (PoE++)
Usage
10 to 30°C 20 to 85%RH (no condensation)
environment
Storage
environment
-10 to 50°C, 95%RH or less (no condensation)
External
dimensions of
main unit
180 (W) x 110 (D) x 190 (H) mm
Weight
3.4 kg
Standard
accessories
Manual (1 volume), AC adapter (1 pc), zero filter (1 set)
optional goods
USB-RS485 converter 3720-06-20, RS232C-RS485 converter 3720-
06- 21
Constant velocity suction probe 3905-07 (1 piece), pump unit
3720-06-22, IP65
Protective case 3720-06-23
*To ensure proper operation of this product, use it within the operating life of the vacuum
source.

-
5. Is it malfunctioning?
failure
Failure Cause/Measures
referen
c e
page
gi
Power will not turn
on.
Defective adapter → Adapter replacement
5
Poor connection of DC power leads →
reconnect
5
Faulty POE exchange connection
→ Heavy new and POE exchange connection
5
"STATUS" lamp
No lights on
Power supply not connected → Connect power
supply
5
Damaged lamp → Return for repair
13
"STATUS" lamp
Red light
Vacuum source not operating. Refer
to →3720-06 MODBUS
Communication Protocol.
7
Leaking vacuum source piping. Or clogged
pipe.
→Examine the vacuum source for leaks.
Eliminate
clogged areas.
be just about to
-
Piping inside the unit is clogged.
→Returns and Repairs
13
Torn internal parts of the main unit →
return for repair
13
When a particle is
detected.
"PARTICLE" light does
not
blink.
Torn internal parts of the main unit →
return for repair
13
Analog output
4~20mA
output error
Analog output wiring error → Correct wiring
7
If the error output setting is on, the current
output is 4 mA or less according to the error.
7
Internal circuit failure → Return for repair
13
Alarm terminal output
abnormal
Analog output wiring error → Correct wiring
7
Internal circuit failure → Return for repair
13

-
EP-CRMS a n d EP-
CRMS wireless sensors
are communicating and
measuring numbers are
not stable.
misconnection
→Check the connection method
4
Circuit failure of main unit → Return for repair
13
EP-CRMS system misconfiguration
→Contact KANOMAX
13

-
6.1 Product Warranty
◆We do not issue product warranties.
◆A user registration guide is attached to the product. Please follow the instructions
and complete the user registration on the top page of our website. Once registered,
we will start the warranty. Please note that without registration, we may not be
able to guarantee the product.
The warranty period for quality problems caused by operation
according to the instruction manual is 3 years from the date of
purchase.
6.2 after-sales service
◆If you're not feeling well, check first...
Please read the section "5. If you think the product is malfunctioning, please read "5.
◆Still, if you're not feeling well...
Please contact the distributor, Kanomax Japan K.K. (see last page), or the
distributor where you purchased the product.
◆Repairs under warranty are...
If the failure is caused by our manufacturing, circuit components, or materials, we
will repair it free of charge.
◆Repairs after the warranty period has expired are...
If the function and accuracy can be maintained by repair, we will repair it at your
request for a fee.
◆Retention period for repair parts...
Repair parts will be held for a minimum of 5 years after discontinuation of production.
This is the period during which the parts are available for repair. For details, please
contact the distributor, Japan Kanomax Co.
6. Product Warranty and After-Sales Service