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MetOne Handheld Particle Counter GT-521S
Manufacturer: MetOne – USA
Model: GT-521S
1. Device Description:
The Met One GT-521S is a handheld, two-channel particle counter that operates on battery power.
The two counting channels can be configured to measure standard particle sizes calibrated at the factory or user-selected sizes ranging from 0.3 to 10 microns.
The GT-521S features a simple menu-driven control system. It allows users to set particle sizes, sampling times, alert settings, and basic setup parameters such as date/time and connectivity with a single touch of a button.
The device can be operated remotely via USB (cable included) or RS-232/RS-485 (optional cable) for full control of all machine functions.
It can store up to 8,000 measurement results, including data from the temperature/humidity probe (accessory PN G3120). Sample history can be viewed on the LCD screen, printed (accessory PN G3115), and downloaded to a computer.
The GT-521S comes with a battery that supports up to 24 hours of normal operation or 10 hours of continuous operation on a single charge, with a recharge time of approximately 2.5 hours.
Technical Specifications:
Performance:
Particle size range: 0.3 µm to 10 µm, 2 channels
Standard particle sizes: 0.3 µm; 0.5 µm; 1.0 µm; 2.0 µm; 5.0 µm; 10 µm
Custom particle sizes: 0.1 µm steps from 0.3 µm to 2.0 µm; 0.5 µm steps from 2.0 µm to 10.0 µm
Particle concentration range: 0 to 3,000,000 particles/CF (105,900 particles/Liter)
Accuracy: ± 10% when calibrated with aerosol
Sampling flow rate: 0.1 CFM (approximately 2.83 liters/minute)
Memory capacity: 8,000 samples
Power Supply:
Light source: Laser diode, 90mW, 780 nm
Battery: Rechargeable Li-Ion 7.4V, 2200 mAh
Battery operation time: Up to 6 hours of continuous measurement; full recharge time approximately 2.5 hours
Charging source: 100-240 VAC, 50/60Hz
Connectivity: USB, RS232, or RS485 for computer connection
Standards: ISO 21501-4 and CE
Display and Interaction:
Screen: LCD 16 characters, 4 lines
Keyboard: 7 soft buttons
Dimensions:
Size (WxDxH): 10.2 x 5.4 x 15.9 cm
Weight: 0.91 kg
Environmental Conditions:
Operating environment: 0 - 50°C
Storage environment: -20 - 60°C
Includes:
Main unit: GT-521S
Operation Manual (PN GT-521S-9800): English user manual
Comet Software CD (PN 80248): Data management software
Calibration Certificate (PN GT-521S-9600): Manufacturer's calibration certificate
Battery Charger (PN 390031): Battery charger
Power Cord (PN 400113): Charging cable
Iso-Kinetic Inlet Sample Probe (PN G3110): Sample inlet probe
Zero Count Filter (PN G3111): Zero count filter
Carrying Case (PN 8517): Carrying case
USB Cable (PN 500787): USB connection cable
Optional Accessories:
Printer (PN G3115): Thermal printer for results
Flow Meter (PN 9801): Airflow rate testing device
Serial Cable (PN 3228): Data connection cable
T/RH Probe (PN G3120): Temperature/humidity probe