For accurate measurements, please reset the UV meter to “0” J/cm² before each use.

The F358 is a sophisticated broadband UV instrument, featuring a display with four distinct UV bands:

• UVA (320 – 400nm)
• UVB (275 – 320nm)
• UVC (200 – 275nm)
• UVV (400 – 700nm)

This broad range of spectral bands ensures precise UV measurement for a variety of applications.

F358 UV Radiometer Specifications

Performance Parameters:

• Intensity Range: 0-30,000 mW/cm²
• Measurement Range: 0-999 J/cm²
• Test Accuracy: ±10%
• Temperature Range: -55°C to +125°C
• Environmental Temperature: 0°C to 45°C
• Sampling Speed: 2K Hz/s
• Power Data Storage Interval: 32 times/sec
• Temperature Data Storage Interval: 2 times/sec
• Data Storage Time: Minimum 4 minutes

Power and Dimensions:

• Power Supply: 2 AAA alkaline dry batteries
• Size: ∅118mm, Height 13mm
• Weight: Approx. 300g

Warranty and Maintenance:

• Warranty: Free repair for non-human damage within one year from the date of purchase (excludes damage caused by external factors and photoreceptor LCD filter consumables).
• Calibration: Annual calibration recommended for optimal performance.

The F358 is a high-precision UV radiometer designed to provide reliable measurements, with excellent data storage capabilities and a wide range of features to support various UV applications.

Key Operations

Power On/Off:

• To power on the device, long press the “ON/OFF” button while the device is off.
• To power off when the device is on and in “MAX” measurement mode, long press the “ON/OFF” button.
• In “MAX” mode, the device will automatically shut down within 1 minute of inactivity. Upon restarting, it will display the measurement results from the last session before shutdown.
• In “RT” mode, the maximum waiting time is 50 minutes (Note: maximum measurement recording time is 30 minutes).

Parameter Settings:

• In power-on mode, long press “SELECT” to enter the calibration scale parameter modification mode.
• In the setting mode, short press the “SELECT” button to select the parameter to modify.
• Short press the “ON/OFF” button to make the modification.
• After making the changes, long press “SELECT” to save the settings and return to the display screen.