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Harmonic Distortion Meters

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General Specifications




   Form Factor       
   Your choices are...
 
      
 
   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” 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.
   Phase       
   Your choices are...
 
      
 
   Single Phase
 
     Devices measure parameters in single-phase systems.
 
   Three Phase
 
     Devices measure parameters in three-phase systems.
 
   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.
   Display Type       
   Your choices are...
 
      
 
   Analog
 
     Analog devices display test results on a dial, usually with a moving pointer or needle. 
 
   Digital
 
     Digital devices display test results electronically on a numeric or alphanumeric display
 
   Other
 
     Other unlisted display types.
 
   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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Device Performance




   Bandwidth
 
     Bandwidth is the range of operating frequencies of the meter or tester.
 
   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.
   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.
   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




   Features       
   Your choices are...
 
      
 
   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.
 
   Embedded Pulse Generator
 
     The tester contains a pulse generator used to simulated pulses for testing equipments.
 
   Built-in CDN
 
     The tester has a coupling/decoupling network (CDN). A CDN is used to produce high quality test waveforms.
 
   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.
   Standards and Certifications       
   Your choices are...
 
      
 
   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 Conformity Mark

 
     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

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.
 
   FCC Standards
 
     The Federal Communication Commission (FCC) standards set rules to prevent interference between components of electronic equipment.
 
   CISPR Standards
 
     International Special Committee for Radio Interference or Comité international spécial des perturbations radioélectriques (CISPR) represents a set of standards on measuring radio disturbances and immunity in electrical devices.
 
   GR-1089-CORE
 
     GR-1089-CORE is a standard for Electromagnetic Compatibility and Electrical Safety. GR-1089-CORE is part of the Network Equipment-Building System (NEBS) standard for telephony equipment.
 
   Military Standards
 
     EMC Military Standards.
 
   ISO Standards
 
     The International Organization for Standarization (ISO) publishes international standards on many aspects of technology products. ISO standards on EMC issues are more related to automotives. Examples are ISO 7637-2 2004 or ISO 13766.
 
   Other
 
     Other unlisted standards.
 
   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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