Piezo balance particle/dust monitor Mode

applications：

★ accuracy is ensured to meet the latest needs of dust measuring in extremely clean indoor environments

★cleanroom monitoring pharmaceutical, aerospace/defense electronics, mems, semiconductor food processing medical/ hospitals.

★cleanrooms iaq investigations food industry filter testing aerospace hospital surgical rooms paint spray booths

as air sample enters the system, it travels through the impactor, which captures and removes larger particulates away from the sample.  smaller particulates become electrically charged and deposited on the piezo-crystal. 

 the total mass of the deposited particulates affects the piezo-crystal’s frequency.  since the change in frequency is proportional to the mass of the particulates, the actual weight of the particulates is obtained

measuring ob-ject

airborn particles < φ10 µm

measuring range

mass concentration of 0.02-10mg/m3

sampling flow rate

1liter/min

measuring time

se-lected by switch.  built-in timer

high concentration level (1 to 10 mg/m3): 24 sec

low concentration level (0 to 1 mg/m3): 2 minutes

accuracy

+/-10% of reading +/-0.01mg/m3

cleaning frequency

cleaning is required after every 10-20 measurements

warning indicator on the display. the impactor is to be cleaned daily

power supply

built-in rechargeable ni-cd battery or ac adapter

dimensions

12.2” x 6.7” x 5.1” (311 x 170 x 130mm)

weight

approx. 8.8lbs. (2kg)