Product Overview Teledyne API Ultrafine Particle Monitor - Model 651
18 07506C DCN6727
Figure 1-1
Ultrafine Particle Monitor - Model 651
Specifications
Table 1-1 contains the operating specifications for the Model 651
instrument. These specifications are subject to change without
notice.
Table 1-1 Model 651 Specifications
PARAMETER SPECIFICATION
Particle Size Range
Min detectable particle (D
50
) 7 nm (verified with DMA-classified sucrose)
Max detectable particle 3 μm
Particle Concentration Range
Single Particle Counting
0 to 10
6
particles/cm
3,
with continuous live-time
coincidence correction
Particle Concentration Accuracy
Measurement Accuracy ±10% at 10
6
particles/cm
3
Response Time (T95)
High flow mode(3 L/min)
<3 sec to 95% in response to concentration step
change
Low flow mode (0.6 L/min)
<5 sec to 95% in response to concentration step
change
Flow
High-flow inlet 3 ±0.3 L/min
Low-flow inlet 0.6 ± 0.06 L/min