Help with Analog dBm Meters specifications:
General Specifications
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| Form Factor | |||
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| Bench / Free-Standing | Bench or free-standing devices are designed to sit atop a bench, or are free-standing units with a full casing, cabinet and integral interface. | ||
| Clamp Meter | Clamp meters are ammeters that can measure current through wires that are connected to a circuit. | ||
| Rack-Mounted | Rack-mounted devices mount in racks and come with hardware such as rail guides, flanges or tabs. Some rack-mounted devices fit in a standard 19 in telecommunications rack. | ||
| Handheld | Handheld devices are designed to be operated while held by hand. | ||
| Computer Board | Computer-board devices are printed circuit boards (PCBs) that plug into computer backplanes or motherboards. | ||
| Other | Other unlisted form factors. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Measuring Ranges
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| dBm Measurement Range | The maximum dBm power that devices can measure. dBm = 10 log (P/Pref), where P is the measured power and Pref is the reference power (1 milliwatt). | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Device Performance
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| Maximum Channels | Maximum channels are the total number of channels for the device. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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| Operating Temperature | Operating temperature is the temperature range over which the device must operate. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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Standards, Options and Features
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| Features | |||
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| Adjustable Sampling Rate | The sampling rate is manually adjustable. | ||
| Alarm LED | Alarm light-emitting diodes (LEDs) light when the RMS value or peak value is greater than the range. Typically, alarm LEDs light only when the range has been greatly exceeded. | ||
| Application Software | The device has embedded application software. | ||
| Auto-Ranging | Auto-ranging devices are self-adjusting to offer the best measurement scenario. | ||
| Battery Powered | Devices are battery-powered. | ||
| Data Acquisition | Devices with data acquisition capabilities have a computer interface and software for uploading data. | ||
| Data Storage / Logging | Data storage or data logging devices have internal memory for storing data. | ||
| dB Readings | Devices measure values in decibels (dB). | ||
| External Shunts | External shunts can be used to extend the current input range. For example, an input that exceeds 5 A can be measured by providing a shunt. | ||
| Filters | Devices have embedded filters. | ||
| Integrating Functions | Integrating functions allow the active power and current to be integrated (Wh and Ah). | ||
| Mirrored Scale | Mirrored scales make it easier to read the instrument to a given accuracy by enabling the operator to avoid parallax errors. | ||
| Overload Protection | Devices with overload protection have fuses or other devices to protect the meter. | ||
| Programmable | Programmable devices can be programmed with trigger values to perform measurements. | ||
| Range Switch | Range switches can be used to select an appropriate range of units to be measured. | ||
| Removable Data Storage | Devices with removable data storage have removable memory, drives, etc. | ||
| Scaling Function | Devices with a scaling function allow the pre-setting of the potential transformer and current transformer ratio, and the power scaling factor. | ||
| Temperature Compensated | Temperature-compensated devices are designed to counteract known errors caused by temperature changes. | ||
| Triggering | Devices with triggering have an interface for external triggering. | ||
| Other | Other unlisted options/features. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Standards and Certifications | |||
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| RoHS Compliant | Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether. RoHS became effective on July 1, 2006. | ||
CE Marking |
CE Marking indicates that a product complies with the essential requirements of relevant European Union (EU) directives that uphold national standards for health, safety and environmental protection. CE Marking is required in the countries of the European Economic Area (EEA), an organization that consists of the twenty five member states of the EU and the three members of the European Free Trade Association (EFTA). CE Marking refers to the safety of a product. It is not a quality standard. | ||
CSA Mark |
Products that bear a CSA Mark have been tested by the Canadian Standards Association (CSA) and meet applicable standards for safety and/or performance. These standards are written and administered by organizations such as the American National Standards Institute (ANSI), Underwriters Laboratories (UL), and CSA International. CSA Marks may appear alone or with indicators. CSA Marks that appear alone are used with products certified primarily for the Canadian market, to the applicable Canadian standards. CSA Marks that appear with the indicators “C” and “US” or “NRTL/C” is used with products certified for both the U.S. and Canadian markets, to the applicable U.S. and Canadian standards. | ||
| UL | Underwriters Laboratories (UL) is a non-profit organization that tests components, systems, and materials according to its published standards for safety. Products that receive UL approval bear a UL Mark. | ||
| IEC 61010 | The International Electrotechnical Commission (IEC) standards are an international organization that prepares and publishes International Standards for all electrical, electronic and related technologies. IEC 61010 standards are designed for protection against transient voltages. There are four categories: CAT I, CAT II, CAT III, and CAT IV. Within each category, there are standards based on the rated voltage (e.g., CAT III 1000 V, and CAT III 600 V). The EMC IEC standards rule on conformity assessment (certifications) to certify that equipment, systems or components conform to its International Standards. Most of the IEC standards on EMC are part of the IEC 61000 series of standards. | ||
| WEEE Compliant | Waste Electrical and Electronics Equipment (WEEE) is a European Union (EU) directive designed to encourage the reuse, recycling and recovery of electrical and electronic equipment. WEEE is also designed to improve the environmental impact and performance of this equipment. The WEEE directive establishes requirements and criteria for the collection, treatment, recycling and recovery of electrical and electronic equipment. It also makes producers responsible for financing these activities. Retailers and distributors must provide a way for consumers to return used or obsolete equipment without charge. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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