| Product |
Handheld Particle Counter |
| Model |
3888 (3-channel model) |
3889 (6-channel model) |
| Particle Measurement |
Sizes |
3 channels (0.3, 0.5, 5.0μm） |
6 channels (0.3, 0.5, 1.0, 3.0, 5.0, 10.0μm） |
| Flow rate |
0.1CFM (2.83L/min)
Accuracy: ±5% (Compliant with JIS B9921 and ISO21501-4） |
| Maximum measurable Concentration |
10% for 2,000,000 particles/CF
（compliant with JIS B9921 and ISO21501-4） |
| Counting efficiency |
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） |
| False count |
≦1 particle/5 minutes
（Compliant with JIS B9921 and ISO21501-4） |
| Size resolution |
≦15% (for PSL particles near 0.3μm)
（Compliant with JIS B9921 and ISO21501-4） |
| Display |
4.3 inch color LCD, Resistive touch panel |
| Communication |
Standard |
USB (Host: for printer and USB flash memory, Device: for PC） |
| Stand (option) |
RS485, Ethernet, and WiFi connection points in the base/stand |
| Recording media |
Media |
Internal memory |
| Number and format |
Up to 10,000 records in CSV format |
| Language |
English, Japanese, Chinese, and Spanish |
| Power |
Internal supply |
Li-ion rechargeable battery (Replaceable） |
| External supply |
AC adaptor Input 100 to 240 V |
| continuous operation time |
5 hours（Single measurement） |
Operating
environment |
Main body |
From 10 to 40 ℃, from 0 to 85%RH (With no condensation） |
| Probe |
From 0 to 50 ℃, from 2 to 98%RH（With no condensation） |
| Dimension |
W213 X H100 X D55 mm |
| Weight |
650g |
Hydrothermal
Measurement
(Available as an
option for the 6-
channel portable
particle counter) |
Measurement range |
（Temperature）From 0 to 50℃
（Humidity）From 2.0 to 98.0％RH |
| Display resolution |
（Temperature）0.1℃
（Humidity）0.1％ |
| Humidity accuracy |
±3.0% (30 to 85%RH), ±5% (other range of humidity) |
| Temperature accuracy |
±0.5℃ |
| Response time |
Approximately 60 seconds or less（90％ response） |