A more compact and lightweight portable digital dust meter.
The LD-3K2 model is a portable dust meter designed to enhance user-friendliness. Our digital dust meters are widely used for measuring suspended particulate matter related to work environments, and they have advantages such as obtaining data in a shorter time compared to filtration collection methods, as they operate as relative concentration meters using the light scattering method. On the other hand, the obtained relative concentration needs to be corrected to mass concentration by determining the mass concentration conversion coefficient based on the characteristics of the filtration collection method. This LD-3K2 model allows for easy conversion of the count values to mass concentration by inputting the mass concentration conversion coefficient (K value). Additionally, it is equipped with a data recording function, making it possible to transfer recorded dust concentration data to a computer. The logging measurement recording cycle can be set from 1 second to 99 minutes and 59 seconds. At a 1-minute cycle, continuous measurement and recording for up to approximately 44 days is possible. By pre-inputting the mass concentration conversion coefficient (K value), measurement values (CPM) can be easily converted and displayed as mass concentration (mg/m3). The scattering plate value and background value (BG) are retained even when the power is turned off. Furthermore, automatic correction of dust measurement values is performed using the scattering plate value and BG value data.
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basic information
Measurement Principle: Light Scattering Method Light Source: Laser Diode Measurement Range: 0.001 to 10.00 mg/m3 Measurement Sensitivity: 1 CPM = 0.001 mg/m3 Measurement Accuracy: ±10% (relative to calibrated particles) Display Contents: ● Measurement Value (0 to 99999 counts) 5-digit display ● Measurement Time ● Current Time ● Measurement Mode ● Battery Level ● K Value (set value 0.1 to 9.9) ● Bar Graph (displayed by pressing the switch during measurement) Measurement Modes: ● Countdown Timer Set the measurement time using the built-in countdown timer and perform the measurement. 6 seconds, 10 seconds, 30 seconds, 1 minute, 2 minutes, 3 minutes, 5 minutes, 10 minutes (the initial state when the power is turned on is "1 minute" countdown timer mode) ● Manual Start and stop the measurement manually. ● Log (Logging) Set the measurement start date and time, measurement duration, and cycle, and perform measurements while recording the data in the device. ● Span Check Insert a sensitivity calibration scattering plate and perform measurements to measure the value of the scattering plate and store the correction value. ● BG (Background) Perform measurements while the detector is filled with clean air, measuring and storing the BG value. This value will be automatically subtracted from the next measurement value.
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At Ascom Co., Ltd., we rent out measuring instruments to ensure safety and security on site. We offer a variety of products, including noise and vibration measuring instruments, gas detectors, and water quality testers, so please feel free to consult us if you have any requests.
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