GTI Aerosol Photometer Model 3991 is a light-scattering linear digital aerosol photometer that subverts the traditional design with advanced technology and scientific design.

• Independent filter certifiers
• Nuclear facilities
• Pharmaceutical manufacturers
• Medical facilities and cleanrooms

• Biosafety cabinets and fume hoods

Model: 3991

Data Display Range: 0.0001 ~ 100.0% colorful display

Dynamic Range: 0.0001µg/L ~ 600µg/L

Accuracy: 1% of Readings (0.01 ~ 100%)

Repeatability: 0.5% of Readings (0.01 ~ 100%)

Flow Control: 1cfm (28.3L/min) ±5%

Zero Point: Automatic or manually

Alarm: Audible, visual and vibratory

Energy Saving Mode: Lower energy consumption

Report: Continuous/ Summary/ Monitoring

Printer: Built-in thermal printer

ID Code: ID scanning, data classify and traceable.

Data Output: Storage, USB, Print; Logs can be traced and stored

Data Storage Capacity: 100,000 Groups

Communication: USB/ Computer

GMP Three-Level Privileged Management: set identities, assign usage permissions, generate the log report

Reagent: PAO/ DOP/ Ondina/ PolvethleneGlvcol/ Corn Oil/ MineralOil/ Paraffin Oi, and etc.

Sampling Port: Standard internal rectangular sampling port without unnecessary corners

Shell Material: SUS304 stainless steel

Operating Environment: 5 ~ 50°C (no condensation/ freezing); 5 ~ 95%RH

Storage Temperature: -20C ~ 60°C (relative humidity below 95%, no condensation)

Power: AC100~240V 50/60Hz or lithium battery (optional with built-in lithium battery pack)

Dimension/ Weight: 220x260 (handle 300) x 390mm (W x H x L)

11.1kg (photometer), 1kg (probe and accessories)

Standards compliance: NSF49, IEST, ISO14644, EN61010-1:2010, EN61326:2006