Instruction manual

Introduction and Specifications
1720/1721
1-7
Table 1- 6: Environmental Characteristics
Characteri sti c Supplemental information
Temperature
Non-operating
Operating
-- 5 5 t o + 7 5 °C
0to+50°C
Altitude
Non-operating
Operating
To 50, 000 feet
To 15, 000 feet
Vibration -- operating 15 minutes each axis at 0.015 inch, frequency varied from
10-55-10 Hz in 1-minute cycles with i nstrument secured to
vibration plat form. Ten minutes each axi s at any resonant point or
at 55 Hz if no resonant point is found.
Shock -- non-operating 30 g’s, 1/2 sine, 11 ms duration, 3 shocks per surface (18 total).
Transportation Qualified under NTSC Test Procedure 1A, Category II (30--inch
drop).
Humidity Will operate at 95% relative humidity for up to five days. Do not
operate wi th vi s ible moist ure on the circuit boards
Table 1- 7: Physical Characteristics
Characteri sti c Supplemental information
Dimensions
Height
Width
Length
5.25 inches (133.4 mm).
8.5 inches (215.9 mm)
10.125 inches (460.4 mm)
Weight 8.5 lbs (3.8 kg).
Table 1- 8: Certifications and Compliances
Category Standards or description
EC Declarat ion of Conformi ty --
EMC
Meets int ent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was
demonstrated to the following specifications as listed in the Official Journal of the European Union:
EN 50081-1 Em issions:
EN 55022 Class B Radiat ed and Conduct ed Emi ssions
EN 50082-1 I mmuni ty:
IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagneti c Fiel d Im munity
IEC 801-4 Electrical Fast Transient/Burst Immunity