§5
Product
Model
Measuring
method
Size distribution
Flow rate
Sampling time
Interval time
Sampling cycle
Location
classification
Calibration
Measuring mode Repeat, Single, Continuous, Calculation, ISO, GB
Particle
Display time of
Measurement
measured value
Display of
measured value
Maximum
measurable
Concentration
Counting
efficiency
False count
Size resolution
Pump
Exhaust
Display
18
Specifications
Handheld Particle Counter
3888 (3-channel model)
3889 (6-channel model)
Light scattering
6 channels (0.3, 0.5, 1.0, 3.0, 5.0, 10.0µm)
3 channels (0.3, 0.5, 5.0µm)
0.1CFM (2.83L/min)
Accuracy: ±5% (Compliant with JIS B9921 and
ISO21501-4)
From 6 seconds to 99 minutes and 59 seconds
(for 1 measurement cycle)
From 6 seconds to 99 minutes 59 seconds
(Interval between the start and the next start of the repeat
measurements)
From 1 to 999 cycles or continuous measurements
99 locations
NIST traceable
From 1 to 10 seconds
Differential Δ and Cumulative∑
2,000,000 particles/CF at 10% coincidence loss
(compliant with JIS B9921 and ISO21501-4)
50±20%(for PSL particles near the minimum measurable
size)
100±10%(for PSL particles of 1.5 to 2 times as large as the
minimum measurable size)
(Compliant with JIS B9921 and ISO21501-4)
≦1 particle/5 minutes
(Compliant with JIS B9921 and ISO21501-4)
≦15% (for PSL particles near 0.3µm)
(Compliant with JIS B9921 and ISO21501-4)
Internal pump(Vane)
With filter
4.3 inch color LCD, Resistive touch panel