METRAHit.27EX Features
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
Calibration
certificate as standard feature
Reduced operating costs for use within ISO 9000 quality systems,
documented traceability
Battery operation
The instrument is operated with two Ex approved rechargeable
NiMH batteries.
Power management: If none of the keys are actuated for a lengthy
period of time,
the milliohmmeter is shut down automatically.
The instrument is also shut down automatically if the minimum
voltage required to perform the
selected measurement is fallen short of.
Applications
The METRAHit.27EX
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:
-
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
* Patented
