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RESISTANCE METER

RM3545

Wide Range 10 mΩ to 1000 MΩ DC Resistance Meters with Multiplexer Option for High-speed Multi-point Testing

Hioki DC resistance meters measure a broad range of resistance values at a high level of precision. The RM3545 is super-high-precision, multichannel-capable resistance meters that meet applications in advanced research and production for testing winding resistance of motors and transformers; contact resistance of power relays, switches, and connectors; and resistance of signal relays and magnetic parts. Key Features • 0.006% basic accuracy, 0.01 μΩ max. resolution, 1A max. testing current • Measure from 0.00 μΩ (testing current 1 A) to 1200 MΩ • Multiplexer Unit Z3003 (option) provides 20-channels of 4-terminal measurements for a complete assessment of multi-point signals (RM3545-02 only) • Low-power resistance measurement with an open voltage not exceeding 20 mV • High-speed, comprehensive productivity support delivers decisions in as little as 2.0 ms from start to finish



Model No. (Order Code)

RM3545
RM3545-01 Built-in GP-IB interface
RM3545-02 Support for the multiplexer unit

Guarantee3years
GPIB
RM3545-01
RS232C
USB2
CE

How to Use Resistance Meters: Measuring Contact Resistance with the Low Power Resistance Function

IEC standards define the method by which to measure the contact resistance of connectors and relays used for very low signals. The Hioki RM3545 Resistance Meter meets those standards with its low power resistance function, also known as the dry circuit test. To reduce the effects on any deteriorating contact surface, the open terminal voltage is capped at 20mV, while the maximum measurement current never exceeds 1mA, delivering the ideal testing environment for measuring contact resistance from the 0.1μΩ to 1kΩ range.


How to Use Resistance Meters: Compensating for the Effect of Electromagnetic Force

When measuring low resistance, due to the voltage generated when different metals come into contact with one another (known as electromagnetic force, or EMF), the measurement values can be unstable. The Hioki RM3545 is built in with an Offset Voltage Compensation (OVC) function to correct for the effects of EMF, making the instrument ideal for measuring low resistance of the welding points of busbars.


Product Video

Key Features • 0.006% basic accuracy, 0.01 μΩ max. resolution, 1A max. testing current • Measure from 0.00 μΩ (testing current 1 A) to 1200 MΩ • Multiplexer Unit Z3003 (option) provides 20-channels of 4-terminal measurements for a complete assessment of multi-point signals (RM3545-02 only) • Low-power resistance measurement with an open voltage not exceeding 20 mV • High-speed, comprehensive productivity support delivers decisions in as little as 2.2 ms from start to finish


Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Resistance range10 mΩ (12.00000 mΩ display Max., 10 nΩ resolution) to 1000 MΩ range (1200.0 MΩ display Max., 100 kΩ resolution), 12 steps
[LP ON] 1000 mΩ (1200.00 mΩ display Max., 10 µΩ resolution) to 1000 Ω range (1200.00 Ω display Max., 10 mΩ resolution), 4 steps
Measurement accuracy: ±0.006 % rdg. ±0.001 % f.s.
Testing current1 A DC to 1 µA or less [LP ON] 1 mA to 5 μA DC
Open-terminal voltage20 V DC (10 kΩ range or more), 5.5 V DC max. (1000 Ω range or less)
[LP ON] 20 mV DC max.
Temperature measurement-10.0 to 99.9 °C, accuracy: ±0.50 °C (Temperature Sensor Z2001 and RM3545 combined accuracy), -99.9 to 999.9°C (analog input)
Measurement speedFAST (2.2ms) / MED (50Hz: 21ms, 60Hz: 18ms) / SLOW1 (102ms) / SLOW2 (202ms)
FunctionsTemperature correction, temperature conversion, offset voltage compensation (OVC), comparator (ABS/ REF%), BIN, key-lock (OFF, menu lock, all lock), display digit count selection function (7- digit/ 6-digit/ 5-digit), automatic power supply frequency settings (AUTO/ 50Hz/ 60Hz), scaling, judgment sound setting, auto hold, averaging, statistical calculations, panel store/panel load, D/A output.
Multiplexer[Only RM3545-02] Support Unit: Z3003 (Install up to 2 units)
Communication interfacesSelect from GP-IB (RM3545-01 only), RS-232C, Printer (RS-232C), or USB . Remote function, communications monitor function, data output function, memory (50)
Power supply100 V to 240 V AC, 50 Hz/60 Hz, Rated power consumption: 40 VA max.
Dimensions and mass215 mm (8.46 in) W × 80 mm (3.15 in) H × 306.5 mm (12.07 in) D
[RM3545/RM3545-01] 2.5 kg (88.2 oz), [RM3545-02] 3.2 kg (35.3 oz)
AccessoriesPower cord ×1, Clip type lead L2101 ×1, temperature sensor Z2001 ×1, Male EXT I/O connector ×1, Instruction manual ×1, Application disc ×1, USB cable (A-to-B type) ×1, Spare fuse ×1

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Seminar Videos On Demand

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Seminar Schedule

Registration Open

Energy Plus 2019 - Seoul, Korea

Oct 16, 2019 - Oct 18, 2019

Registration Open

ENTECH 2019 - Busan, Korea

Sep 18, 2019 - Sep 20, 2019

Catalogs

Catalog: RESISTANCE METER RM3545, RM3544 Download PDF  [5MB] English

User Guides

Technical Note: Shunt Resistor Measurement Vol.5 Download PDF  [513KB] English
Technical Note: Wide or Thick Resistor Measurement Vol.4 Download PDF  [4MB] English
Replacement Guide (From the 3227 to the RM3545) Download PDF  [926KB] English
Technical Note: Introduction to Resistance Measurement Vol.1 Download PDF  [1MB] English
Technical Note: Resistance Measurement of Busbar Welds Vol.3 Download PDF  [878KB] English
Replacement Guide (From the 3541 to the RM3545 Series) Download PDF  [1MB] English
Replacement Guide (From the 3560 to the RM3545 Series) Download PDF  [1MB] English
Effect of the measurement target output resistance and voltmeter input resistance on measured values Download PDF  [711KB] English

Manuals

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Communication Command Instruction Manual English
Ver.03
Instruction Manual English
Ver.04
Instruction Manual Simplified Chinese
Ver.03
Instruction Manual Korean
Ver.01

Outline Drawings

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Ver.00

Ver.00

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Technical Notes

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Others

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Options

Measurement Leads / Input scanner

*The L2101, Z2001 are bundled with the RM3545 series

About lead length
A: From junction to probe, B: Probe length, L: Overall length

Note: For L2101 to L2104, length “A” can be extended by roughly 1.1 m (3.61 ft) by cutting the binding tube.

CLIP TYPE LEAD L2101

A: 250 mm (9.84 in), B:84 mm (3.31 in), L:1.5 m (4.92 ft)

PIN TYPE LEAD L2102

A: 250 mm (9.84 in), B:178 mm (7.01 in), L:1.5 m (4.92 ft)

PIN TYPE LEAD L2103

A: 250 mm (9.84 in), B:176 mm (6.93 in), L:1.5 m (4.92 ft)

4-TERMINAL LEAD L2104

A: 280 mm (11.02 in), B:149 mm (5.87 in), L:1.5 m (4.92 ft)

LED COMPARATOR ATTACHMENT L2105

2 m (6.56 ft) length

TEMPERATURE SENSOR Z2001

1.75 m (5.74 ft) length

MULTIPLEXER UNIT Z3003

4-wire 10ch or 2-wire 21ch input scanning

PC Communication

*The 9151-02 is only for the RM3545-01

GP-IB CONNECTOR CABLE 9151-02

2 m (6.56 ft) length

RS-232C CABLE 9637

9 pin - 9 pin, cross, 1.8 m (5.91 ft) length

Gallery

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