1-31 SPECIFICATIONS
1-32.
Table 1-2
lists the specifications and performance characteristics for the HP 5517B/C/D Laser Head.
Table 1-2. HP 5517B/C/D Laser Head Specifications and Performance Characteristics
Description: The HP 5517B/C/D Laser Head contains an automatically turned Helium-Neon laser, circuits to
control the laser, and a reference optical receiver. The laser generates a coherent, collimated, two-frequency
beam of light. This is a Class II Laser Product conforming to U.S. National Center for Devices and Radiological
Health Regulations 21 CFR 1040.10 and 1040.11.
Vacuum Wavelength (Nominal): 632.991372 nanometers (5517B)
632.991354 nanometers (5517C)
632.991354 nanometers (5517D)
Vacuum Wavelength Accuracy (3 sigma, lifetime): ±0.02 ppm
with factory calibration to MIL-STD 45662 or ISO 9001/2 Commercial Calibration
Vacuum Wavelength Stability (typical 1 hour): ±0 002 ppm
Vacuum Wavelength Stability (typical lifetime): ±0.02 ppm
Beam Diameter: 6 mm (0.24 in) typical
Maximum Beam Power Output: 1 milliwatt
Minimum Beam Power Output: 180 microwatts
Warm-Up Time: less than 10 minutes (4 minutes typical)
Power Requirements:
The HP 5517B/C/D require the following power inputs:
+15 Volts ±0.3 Volts at 2.2 Amperes maximum -15
Volts ± 0.3 Volts at 0.02 Amperes maximum
Heat Dissipation:
23 Watts (during operation) 35
Watts (during warm-up)
Safety Feature: Front shutter to clock Laser Beam
Outputs:
Reference signal: 1.9 - 2.4 MHz (5517B), 2.4 - 3.0 MHz (5517C), or 3.4 - 4.0 MHz (5517D) differential square
wave (DC isolated). TTL levels are compatible with all Laser Transducer System inputs.
Environmental Conditions:
Temperature (Operating): 0 to 40°C (32 to 104°F)
Temperature (Non-Operating): Can be stored or shipped in environments within the range of -40 to +75°C.
NOTE
This unit should also be protected from temperature extremes that could cause
condensation within the instrument.
Relative Humidity (Operating): 0 to 95% Non-condensing
Magnetic Field Strength (Non-operating): Does not exceed 5.25 mGauss at a distance of 460 cm (15 ft) from any
point on the surface of the packaged laser head.
Enclosure: NEMA Type 12
Dimensions: 35.9 x 13.2 x 12.8 cm
Weight: 3.4 Kg (7.5 lb)
Clearance Required for Cabling: 10.16 cm (4 in) beyond rear panel.
1-33. RECOMMENDED TEST EQUIPMENT
1-34. Equipment required to maintain the HP 5517B/C/D Laser Head is listed in
Table 1-3.
Other equipment may be
substituted if it meets or exceeds the critical specifications listed in the table.
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