Milliohmmeter, Multimeter and Data Logger, Temperature Meter(4-Wire Measurement)
The 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 METRA HIT 27 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. The instrument also measures and records insulation resistance (METRA HIT 27I only) with test voltage selectable in steps, for example in order to test resistance in on-board electrical systems for aircraft, ocean-going vessels etc., and for testing overvoltage arresters and much more.
The MetraHit 27M is a rugged, reliable and compact milliohmmeter, multimeter and temperature measuring instrument too.
It is very well suited for on-site service, as well as for a wide variety of laboratory tasks.
Applications:
Applications apart from general low-ohmig measurements:
- Measuring low-value contact resistances at welding seams and riveted joints
- Determination of low-resistance transitions at outer skins of aircraft (lightning protection, wick test), and for general low-resistance measurements.
Easy Operation
Operation is very easy. Simply connect the low-resistance device under test to the instrument with the included measurement cables, Kelvin clips or 4-pole probes (KC27), and select the ideal measuring range.
Integrated Measured Value Memory and Interface
Each METRA HIT 27 is equipped with a measured value memory module and can thus be utilized as a data logger or a recording instrument for all measuring functions. Measurement results can be transmitted to a PC either offline via the optical interface which is furnished as standard equipment, or online with an optional bidirectional adapter.