•
Battery-operated handheld
• 0.3 or 0.5 micron sensitivity at 0.1 cfm
• Quick evaluations of rooms or filters
• Bright Red LED display for counts
• Only 1.5 pounds (0.65 Kg.)
There have never been particle counters quite like these: one switch, one display, quick results. At an unbeatable price. Just turn the lightweight counter on, check the display, and turn it off. Walk around a room, scan a filter, and watch the particle concentration change! Measuring filter effectiveness, checking cleanroom status, and troubleshooting contamination has never been this easy and fast.
If you need to monitor particle concentration, the HH 100 Series takes a six-second sample, then calculates and displays the concentration in particles-per-cubic-foot. If you need to monitor total particle count, the HH 100 Series displays the number of particles in 0.1 cubic feet of air after a one minute sample. Both counters detect discrete particles using a laser-based sensor. These counters weigh only 1.5 pounds. Their internal rechargeable batteries last for 3.5 hours. There are no complicated controls.
These counters have many uses: medical industries can monitor air filter systems for pathogen-sized particles. Filter manufacturers can test the effectiveness of their product. Cleanroom industries can perform quick status checks of Class 100 and above cleanrooms. Heating, ventilation, and air conditioning personnel can determine indoor air quality by converting particle concentration to mass concentration (ASHRE 62-1989, Appendix A).
How they work: The HH 100 Series Particle Counter starts counting when the power is turned on, and the display is updated continuously as particles are detected. After counting for one minute, the HH 100 Series holds the count on the display until the power is turned off. This count represents the number of particles in 0.1 cubic feet of air.
When the HH 100 Series Particle Concentration Meter is turned on, it samples air for six seconds, then displays the number of particle per cubic foot (i.e. particle concentration). The display is updated every six seconds. This method has two advantages: fast count results and direct readout of particle concentration.
Both counters ship with a power module for recharging the internal batteries. There are two charging modes. the quick charge mode recharges completely discharged batteries in 3.5 hours. Less time is required if the batteries still have some charge. A flashing quick-charge light goes out when the batteries are recharged. The second mode, trickle charge, requires fourteen hours.
Both models also include a purge filter, which installs in place of the isoprobe. Particle left in the counter form earlier samples in a high particle concentration environment could affect subsequent counts. Operate the counter with the purge filter installed until the display reads zero particles. If the counter won’t "zero count," it should be returned to the factory for service.
Specifications
Size
channel: 1
HH 100B 0.3 microns
HH 100A 0.5 microns
Flow rate: 0.1 cfm
Sampling mode:
HH 100A: 6-seconds particle
concentration, display in counts/ft3 or counts/liter
HH 100B: 1 minute sample period, display
in total counts
Display: Red LED; 9 digits for counts
Sample time:
HH 100A: 6 seconds, then updates every
second continuously
HH 100B: 1 minute, then stops
Concentration: 2,000,000 particles/ft3
Printer: None
Battery operation: 8 hours continuous,
NiMH
Power: 100, 115 or 230VAC, 50/60 Hz
(AC/DC Adaptor)
Weight: 1.43 pounds (0.65 Kg)
Size: 3.9"W x 7.7"H x
1.6"D (10W x 19.7H x 4.1D cm)
Included with unit: Isokinetic probe,
purge filter, manual
When
ordering, specify:
Min.
threshold size: 0.3 or 0.5 microns
AC voltage: 100, 115 or 230 VAC
Display (100A): Particles/ft3 or
particles/liter
Accessories
High Pressure
Diffuser
Carrying Case