Getac - Solutions

MIL-STD 810F/G

Ruggedness is one of the most important factors to consider when choosing mobile solutions, which is why Getac ensures that its fully-rugged units operate even when dropped onto concrete, or used in harsh environmental conditions such as heat and cold, dust and rain. The rigorous testing that these units go through ensures that our clients are provided with products that meet the highest standards of ruggedness and reliability. Getac employs MIL-STD 810F/G to test its products. This standard, set by the US military, is the most widely used international standard.

MIL-STD 810F/G covers a broad range of tests used to measure equipment reliability:

High Temperature: MIL-STD 810F Method 501.4 / 810G Method 501.5
This test procedure determines a computer’s operating performance during exposure to high temperature conditions. The operational test differs from the storage test in that the computer is evaluated while conditioned to elevated temperatures determined to be applicable to, or resulting from, exposure in its operational configuration.

Low Temperature: MIL-STD 810F Method 502.4 /810G Method 502.5
This test determines the performance of the computer during exposure to low temperature conditions. The operational test differs from the storage test in that the computer is evaluated under cold conditions determined to be applicable to, or resulting from, exposure in its operational configuration.

Temperature Shock: MIL-STD 810F Method 503.4 /810G Method 503.5
Temperature shock tests determine if an item can withstand sudden changes in the temperature of the surrounding atmosphere without experiencing physical damage or deterioration in performance.

The two objectives of the temperature shock test are set to determine whether the test item can still a) be safely operated, and b) satisfy its performance requirements, after being exposed to sudden changes in temperature of the surrounding atmosphere.

Rain: MIL-STD 810F Method 506.4/810G Method 506.5
Rain Resistance tests are performed to determine the resistance to rain and wind-driven rain.

Drop: MIL-STD 810F Method 516.5 /810G Method 516.6
Free fall drop tests (shock) are performed to ensure that equipment can withstand relatively infrequent, non-repetitive shocks or transient vibrations encountered during handling, transportation, and normal service.

The standard requires 26 drops from 1.2 m (4 ft) onto plywood, using up to 5 units.

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MIL-STD 461

MIL-STD-461 is Military standard & testing specification to ensure the

Conducted Emissions (CE)

Conducted Susceptibility (CS)

Radiated Emissions (RE)

Radiated Susceptibility (RS)

of a product/system can meet the “Requirements for the control of electromagnetic interference characteristics of subsystems and equipment”.

Jan 2008: Release of MIL-STD-461F

MIL-STD-461 is a widely used test standard for military electronics suppliers, due largely to the fact that it covers inter-service operability issues. Approved on December 10, 2007, the newly released MIL-STD-461F supersedes MIL-STD-461E.

EMI

Increased step size of all testing above 1GHz which will increase the testing for this range, up to five times faster than under the scope of 461E

Conductive emissions, 5μH LISN’s may now be used at the request of the customer or end-customer if the lines tested are of low impedance and draw a particularly high current. To coincide with this, limit lines have been re-drawn too.

Radiated emissions testing RE101, if the equipment exceeds the limit at the 70mm distance, a requirement has been added to increase the measurement distance until the emission falls within the specified limit and to record the emissions and the measurement distance. RE102 also has a new counterpoise for testing below 30MHz as there were concerns about the accuracy of testing with the active antenna; TRaC has already acquired a new counterpoise for this test.

EMS

In the susceptibility testing, the higher step sizes for the 1GHz – 18GHz RS103 test range means that TRaC can typically deduct an entire day’s testing from the programme.

MIL-STD-461F also introduces a new test, CS106, a transient spike coupled onto power lines which is for products for submarines or surface ships. Staying with conducted susceptibility, CS114 has had its lower limits extended down to 4kHz for Submarine power lines, while CS116 has done away with the lower test level of IMAX of 5 Amps altogether.

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UL 1604

UL1604 is a safety standard to ensure a Electrical product/equipment could be safely operated in Hazard locations including:

areas with the possible presence of an explosive atmosphere containing fuels such as flammable gases, vapors, liquids (class I), combustible dust (class II) or ignitable fibers & flyers (class III). (defined by national electrical code (NEC))

the likelihood that the explosive atmosphere is present when equipment is operating

Getac provide the UL1604 certified rugged mobile solution which can benefit customer who need

Electrical Equipment for Use in Class I and II, Division 2, and Class III Hazardous (Classified) Locations.

A Class I, Division 2 location is a location:

where volatile flammable liquids or flammable gases or vapors exist(C1), but are normally confined within closed containers(D2);

where ignitable concentrations of gases, vapors or liquids are normally prevented by positive mechanical ventilation

adjacent to a Class I, Division 1 location, where ignitable concentrations might be occasionally communicated.

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