A-A-50734B
2.1.2 Battery test. A display indication shall be provided to show marginal performance of the multimeter due to low battery potential.
2.2 Temperature requirements.
2.2.1 Non-operating (storage) temperature. The equipment shall be allowed to be stored in a non-operating environment of -51°C to 71°C without damage to the equipment.
2.2.2 Operating temperature. The equipment shall meet its performance and accuracy requirements in an operating environment of -15°C to +55°C, -40°C for 20 minutes when taken from 20°C.
2.3 Mean time between failures (MTBF). The equipment mean time between failures (MTBF)
shall be at least 2,000 hours.
2.4 Pre-conditioning requirement. Each deliverable equipment shall be capable of being subjected to the environmental screening effect of burn in and thermal cycling, with thermal cycling being accomplished in the sample testing phase.
2.5 Calibration and maintenance adjustments. The design of the system shall provide for
readily accessible calibration and maintenance adjustments. These adjustments shall be provided by variable value components, which are adjustable, by the use of simple means. The calibration by substitution of selected components or parts is unacceptable unless specifically approved.
The calibration adjustments, wherever possible, shall be accessible without removal of the instrument case or modules. The calibration interval shall be a period of one year or greater based on an operating time of 2,000 hours.
2.6 Performance characteristics.
2.6.1 Accuracy. Unless otherwise specified, all electrical specifications in paragraph 2.6 are from 18°C to 28°C with up to 95 percent humidity, for one year after calibration. At temperature less than 18°C or greater than 28°C, the temperature coefficient shall be less than 0.1 times the applicable electrical specification per °C. Accuracy is specified as ± ([percent of reading] + [number of least significant digits]).
2.6.2 DC voltage.
2.6.2.1 Ranges, resolution, and accuracy. Minimum performance shall be as specified in Table
I.
2
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business