Metrahit 27EX Milli-Ohmmeter Avionics Tester.
METRAHit 27EX Intrinsically Safe Milliohmmeter for Use in Potentially Explosive Atmospheres.
Compact milliohmmeter for the measurement of low value contact resistance in potentially explosive
atmospheres, for example at contacts inside aircraft fuel tanks (bonding test), as well as for general
low value resistance measurements inside and outside of potentially explosive atmospheres,
for example on aircraft outer skins (lightning protection and wick test).
Milliohmmeter - Bonding Tester.
| Model | Description |
|---|---|
| Metrahit 27EX | Metrahit 27EX Avionics Milliohmmeter. |
The Metrahit 27EX milliohm resistance meter is the modern alternative to the well known TH2 (Thomson)
and Wh2 (Wheatstone)measuring bridges. It provides an expanded measuring range, greater accuracy and
easier reading. As a universal measuring instrument, it acquires resistance values by feeding a test current
through the respective resistor, conductor or contact, and records them to its integrated memory module.
AIRBUS M227G 97F92003500 according AMM (Aircraft Maintenance Manual)
AIRBUS M227D 97000F92001015000 for FAL only (Final Assembly Line)
| Measuring resistance ranges | 30 mΩ, 300 mΩ, 3 Ω and 30 Ω |
| Resolution | 10 ยตΩ |
| Kelvin connection | 4-wire measurement |
| EX designation | Ex II 2 G EEx ia IIA T4 |
| Certificate | INERIS 05ATEX0040 |
| Voltage measurement | from 3 to 600 V DC and 3 to 600 V AC with ± 30,000 digits |
| Frequency Measurement | from 300 Hz to 3 kHz |
| DATA hold memory | up to 1200 measured values |
| Continuity Testing | YES |
| DIODE Testing | YES |
| Overload Protection | YES |