1. Part Names and Functions
1
1. Part Names and Functions
1.1 General Outline
This instrument (Model 3443) is a light scattering portable dust monitor using a semiconductor laser radiation light
source.
The measurement data is displayed on the LCD and can be saved to internal memory.
The measurement data can be retrieved using the provided software.
<Features>
-
Dimensions are reduced significantly compared to previous models
-
User-friendly menu.
-
Calibration operation can be handled from the display screen.
-
Data logging function allows users to redisplay saved data.
-
Using nonvolatile memory secures a worry-free measurement and saves measurement data and correction
memory such as calibration parameters indefinitely.
-
USB is standard for communications.
-
The instrument can interface with an external device via analog output, pulse output and alarm output which
are equipped standard. (The output cables are sold separately.)
1.2 Measurement Principle
When dust is irradiated, the scattered light intensity from the dust is proportional to the mass concentration. Using this
mechanism, this dust monitor measures the mass concentration of airborne dust.
1.3 Laser Handling
Laser Classification
This instrument is classified as a Class 1 Laser Product.
* Class 1 Laser:
Laser that is considered to be safe under reasonably foreseeable conditions of operation, including the use of
optical instruments for intrabeam viewing.
Laser Safety Instruction
This instrument employs a laser inside the unit as the light source of the sensor. Never open/remove the case of the
unit or disassemble the optical sensor inside the unit.
Caution:
The laser diode used inside this instrument is classified as class 3B by laser safety standard.
Directly viewing or touching the laser beam is hazardous. Therefore never disassemble or modify the
instrument
.
