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Specifications and Characteristics
Laser Beam Characteristics
Type: Helium-Neon, Continuous, Two-Frequency
Maximum Beam Power Output: 1 milliwatt
Minimum Beam Power Output: 180 microwatts
Beam Diameter: 6 millimeters (0.24 in) typical
Vacuum Wavelength Accuracy (3 sigma, lifetime): ±0.1 ppm
Vacuum Wavelength Stability (typical 1 hour): ±0.002 ppm
Vacuum Wavelength Stability (typical lifetime): ±0.02 ppm
Nominal Vacuum Wavelength: 632.9913540 nanometers
Outputs
Reference Frequency (5519A): 2.4 – 3.0 MHz
Reference Frequency (5519B): 3.4 – 4.0 MHz
Figure 4. Keysight 5519A/B Laser Head D imensions.
Environmental Ratings
Operating Temperature: 0˚C - +40˚C
Altitude: 4000 m
Humidity: 15–95%
Indoor Use Statement: For indoor use only.
Pollution: Degree 2
Installation: Category II
Keysight 5519A and 5519B User's Guide
Power
Heat Dissipation:
33 watts (during operation)
50 watts (during warm-up)
Power Requirements: 100 to 240 Vac, 50/60 Hz, 65VA Max
Warm-up Time: <10 minutes (4 minutes typical)
Physical Characteristics
Dimensions: See figure below
Weight: 5.8 Kilograms (12.5 pounds)
Magnetic Field Strength (Non Operating):
Does not exceed 5.25 milligauss at a distance of 460 cm (15 ft.)
from any point on the surface of the package Laser Head.
3 Specifications
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