1.1 Product Overview and Features
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The RM3545 is capable of performing high-speed, high-precision measurement of the
winding resistance of components such as motors and transformers, the contact resistance
of relays and switches, the pattern resistance of printed circuit boards, and the DC resis-
tance of fuses, resistors, and materials such as conductive rubber using four-terminal mea-
surement. Since the instrument incorporates a temperature correction function, it is
particularly well suited to the measurement of targets whose resistance values vary with
temperature. It also provides features such as a comparator function, communications,
external control, and a multiplexer*, allowing it to be used in a wide range of applications,
including in development work and on production lines.
* The multiplexer can be used with the RM3545-02.
Overview Chapter 1
1.1 Product Overview and Features
• Measurement range: 10 m to 1000 M/ Basic accuracy: 0.006%rdg.
• Maximum resolution: 10 n
Supports low-resistance measurement of current detection resistors, reactors, welds, etc.
• Up to 1 G range
Can be used in open testing of contacts.
• Discharge voltage of 20 mV or less
Low-power measurement can be used in testing under IEC 60512-2 and other contact
standards.
• Accuracy defined without zero-adjustment
Conduct measurement with peace of mind, even without performing zero-adjustment.
• Wiring resistance tolerance in low-resistance range: 1.5
Measurement cables can be extended easily, even when using the 1 A measurement cur-
rent range.
High-performance specifications to meet advanced development
and production needs
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