ValueTronics METRAHIT 27M 毫欧表

"The METRAHIT 27M is a milli ohmmeter from Gossen Metrawatt.","Features:","Accessories:","Applications:","The METRAHIT 27M is a compact, rugged and reliable instrument, which is equally suitable for precision measuring and recording tasks in the factory, for on-site service and in the laboratory:","The Gossen Metrawatt METRA HIT 27M is a compact milliohm resistance meter plus multimeter and thermometer for the measurement of low-value contact resistance on aircraft outer skins (lightning protection, wick test), and for general low-resistance measurements. The METRAHIT 27M milliohm resistance meters are the modern alternative for the well known TH2 (Thomson) and Wh2 (Wheatstone) measuring bridges. They provide an expanded measuring range, greater accuracy and easier reading. As universal measuring and test instruments, they acquire and record values to an integrated memory module including resistance in the milliohm and micro-ohm ranges, as well as normal multimeter resistance values in the ohm to mega-ohm ranges by feeding a measuring current to the resistor, conductor or contact under test. The respective measuring current is determined by the rotary selector switch setting and lies within a range of 1 to 0.02 A in the milliohm ranges."

特性

• All-in-one: Milliohm resistance meter, multimeter and data logger Compact and rugged for service under harsh conditions and laboratory use, a single device for many applications
• Kelvin connection (4-wire measurement) - Suppresses influence from conductor and contact resistances on measuring results
• Measuring current can be selected according to the measuring task: Adaptation to various resistance measuring requirements and optimized battery service life
• DATA Hold - For quick, reliable measurement and storage of individual measured values, e.g. voltages at discrete cells in batteries and emergency power supplies
• Overload protection - Protects the instrument in the event of inadvertent connection to mains power
• DAkkS calibration certificate as standard feature - Reduced operating costs for use within ISO 9000 quality systems, documented traceability
• Operation with storage batteries - 3 NiMH storage batteries are included as a standard feature.
• 1 - GH18 protective rubber cover with carrying strap
• 3 - size AA NiMH storage batteries
• 1 - KS17-S measurement cable set
• 1 - abbreviated operating instructions
• 1 - operating instructions D/GB/F
• 1 - DAkkS calibration certificate
• Adjustment of shunts in instrumentation
• Testing of electrical connections at conductor bars for openpit mining, in potential bonding systems, and for industrial and household applications
• Testing of cable resistance, wiring, shunt resistors in PCBs and thick-film circuits
• Measurement of contact resistance in relays, contactors and power interrupters
• Testing of resistance in fuses, as well as conductor resistance in heavy current circuits
• Testing of winding resistance in transformers, coils, small motors etc.
• Testing of discharge resistance on aircraft, and at aircraft outer skin components
• Contact resistance testing in uninterruptible power supplies
• Measurement of cell voltages, for example in on-board batteries and emergency power supplies
• Contact resistance testing at welding seams