Page 1-10 Lasair II Particle Counter Operations Manual
Chapter 1: Getting Started
Battery Usage Specifications
Battery Usage Specifications
Battery run time Varies with conditions:
• 4 hours with 10’ tubing on the inlet jet, one minute
samples, and a printout every sample.
• 7 hours with no tubing and no printout at the end of the
sample
• Lasair II particle counter 350L and 550L:
• 3 hours with 10 feet of tubing on the inlet jet, one
minute samples, and a printout every sample
• 3.5 hours with no tubing, and no printout after every
sample
Battery charging
temperature
• Minimum: 15°C
• Maximum: 35°C
Battery charge time
(at 24°C ambient)
• 80% full in 4 hours
• 100% full in 5 to 10 hours
Battery charge time
(at 35°C ambient)
• 60% full in 3 hours
• 100% full in 8 to 16 hours
Battery charge time,
BC II external
charger
2–3 hours to charge a 95%-depleted battery
Battery charge
indicator accuracy
Within 10%