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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

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SKU: RM3545 Category:

Description

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 2.2 ms from start to finish

Model No. (Order Code)

RM3545
RM3545-01 with GP-IB interface
RM3545-02 support for the multiplexer unit
USB 2.0
CE
GPIB
RS232C
3 year

 

 

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 range 10 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 current 1 A DC to 1 µA or less [LP ON] 1 mA to 5 μA DC
Open-terminal voltage 20 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 speed FAST (2.2ms) / MED (50Hz: 21ms, 60Hz: 18ms) / SLOW1 (102ms) / SLOW2 (202ms)
Functions Temperature 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 interfaces Select from GP-IB (RM3545-01 only), RS-232C, Printer (RS-232C), or USB . Remote function, communications monitor function, data output function, memory (50)
Power supply 100 V to 240 V AC, 50 Hz/60 Hz, Rated power consumption: 40 VA max.
Dimensions and mass 215 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)
Accessories Power 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

Catalogs

RESISTANCE METER RM3545

User Guides

Technical Note: Shunt Resistor Measurement Vol.5

Technical Note: Wide or Thick Resistor Measurement Vol.4

Replacement Guide (From the 3227 to the RM3545)

Technical Note: Introduction to Resistance Measurement Vol.1

Technical Note: Resistance Measurement of Busbar Welds Vol.3

Replacement Guide (From the 3541 to the RM3545 Series)

Replacement Guide (From the 3560 to the RM3545 Series)

Effect of the measurement target output resistance and voltmeter input resistance on measured values

Declaration of Conformity

RESISTANCE METER RM3545,RM3545-01,RM3545-02 [121KB]

Drivers, Firmware

LabVIEW driver for RESISTANCE METER RM3544-01 RM3545 RM3545-01 RM3545-02

RESISTANCE METER RM3544 RM3545 Application

RESISTANCE METER RM3545 Sample Application

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.

 

TEMPERATURE SENSOR Z2001

1.75 m (5.74 ft) length

LED COMPARATOR ATTACHMENT L2105

2 m (6.56 ft) length

4-TERMINAL LEAD L2104

B:118 mm (4.65 in), L:1.5 m (4.92 ft)

PIN TYPE LEAD L2103

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

PIN TYPE LEAD L2102

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

CLIP TYPE LEAD L2101

B:83 mm (3.27 in), L:1.5 m (4.92 ft)

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

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

Estimating the Length of Copper Wire 

Using an ohmmeter to directly read volume resistivity 

Comprehensive Testing of Coils and Transformers 

Estimating the Length of Copper Wire

Measuring volume resistivity and surface resistivity of conductive materials using the four-point method

Drivers, Firmware, Software

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