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E-mail
lyl@utestek.com
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Phone
17301946517
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Address
1108 Taojing Building, Minbao Road, Longhua New District, Shenzhen, Guangdong Province
Shenzhen Youce Technology Co., Ltd
Product Introduction of RM3545A Nichic Resistance Meter
Date: 2025-11-29Read: 20
I. Overview
With the development of electrified society, batteries, motors, and electronic components are moving towards high current and high voltage. Even small resistors can have a significant impact on energy efficiency and safety, so more accurate quality control of resistors is crucial. RM3545A is an ultra-high precision DC low resistance tester. In low resistance measurement, the voltage (thermoelectric potential) generated by the connection parts of different metals is different, which sometimes leads to unstable measurement values. The resistance meter RM3545A is capable of compensating for the influence of thermoelectric potential and is more suitable for measuring low resistance such as busbar welding parts. RM3545A can also be used to detect coil, inductor, transformer, motor, relay contact resistance, connector resistance, fuse, cable resistance, printed board line resistance, solder hole resistance, conductive film, metal flaw detection, etc. It is a low-speed, high-precision, high-performance low resistance tester that can meet the requirements of production line quality assurance, incoming inspection, and laboratory measurement. It is also suitable for testing automation equipment.
2、 Product Features
1. Easily achieve accurate measurement of low resistance
2. Easily achieve high-precision multi-channel measurement
3. Easy integration on automated production lines
4. Easy selection of suitable testing lines
3、 Product Overview
1. Accurately measure low resistance values in the development process of batteries, motors, electronic components, etc
2. Small measurement range: 1000 μ Ω, small measurement range accuracy: 0.045%, small resolution: 1 n Ω, large measurement current: 1 A
3. By integrating it into the production line, the same measurement accuracy as during development can be achieved
4. 132 channels (4-terminal method) (when used in combination with the scanning module rack SW1002)
5. Supports 20 channels (4-terminal method) when installing two Z3003 multiplexer units. RM3545A-2）
6. Within the low resistance test range, the measurement speed is 21 ms faster (in 10 m Ω range or 100 m Ω range, with PR mode ON, measurement speed FAST, and using an external trigger)
4、 Basic parameters (accuracy guarantee time of 1 year)
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Resistance measurement range (13 range) |
[Range, Display, Resolution, Measuring Current] 1000 μ Omega μ ω n ω A 10 mΩ: 12.000 00 mΩ, 10 nΩ, 1 A 100 mΩ: 120.000 0 mΩ, 100 nΩ, 1 A 1000 mΩ: 1200.000 mΩ, 1 μΩ, 100 mA 10 Ω: 12.000 00 Ω, 10 μΩ, 10 mA 100 Ω: 120.000 0 Ω, 100 μΩ, 10 mA 1000 Ω: 1200.000 Ω, 1 mΩ, 1 mA 10 kΩ: 12.000 00 kΩ, 10 mΩ, 1 mA 100 kΩ: 120.000 0 kΩ, 100 mΩ, 100 μA 1000 kΩ: 1200.000 kΩ, 1 Ω, 10 μA 10 MΩ 12.000 00 MΩ, 10 Ω, 1 μA 100 M Ω (100 M Ω range high-precision mode): 120000 0 M Ω, 100 Ω, 100 nA 1000 M Ω: 1200.0 M Ω, 100 k Ω, below 1 μ A |
| Representing accuracy High mode, OVC function ON, SLOW2, no zeroing |
1000 μ Ω range: ± 0.045% RDG ± 0.010% F.S 10 m Ω range: ± 0.045% RDG ± 0.001% F.S 100 m Ω range: ± 0.045% RDG ± 0.001% F.S 1000 m Ω range: ± 0.012% RDG ± 0.001% F.S 1000 Ω range: ± 0.006% RDG ± 0.001% F.S |
| measure current | High mode: 1000 μ Ω (1 A) to 1000 M Ω (below 1 μ A) Low模式: 100 mΩ（100 mA）〜100 Ω（1 mA） Low Power Mode (LP): Low power measurement that controls the measured current and open circuit voltage to 20 mV LP1000 mΩ（1 mA）～LP1000 Ω（5 μA） |
| Measuring speed | FAST, MEDIUM, SLOW1, SLOW2 |
| Allowable value of circuit resistance ※ Reference value Loop resistance between Source B and Source A (excluding the measured object) |
Range below 100 m Ω (PR mode OFF): 2.6 Ω Range below 100 m Ω (PR mode ON): 3.5 Ω 1000 m Ω range: 15 Ω 10 Ω range: 150 Ω 100 Ω Range: 100 Ω 10 k Ω range: 500 Ω Range above 100 k Ω: 1 k Ω |
| Open circuit terminal voltage | Range below 1000 Ω: 8.0 V Range above 10 k Ω: 20 V |
| temperature measurement | Thermistor sensor (Z2001 [attachment]): -10.0 ℃~99.9 ℃ Analog input (infrared thermometer, etc.): DC 0 V~2.0 V |
|
Built in multiplexer (Built in option, RM3545A-2) |
Converter Unit Z3003 Number of units that can be carried: 2 units Number of channels: 20 channels (4-wire type), 42 channels (2-wire type) Switching time: 30 milliseconds |
|
External multiplexer (External Options) |
Scan module rack Number of channels (SW1001): 33 channels (4-wire type) Number of channels (SW1002): 132 channels (4-wire type) Switching time: 11 milliseconds |
| interface | LAN (TCP/IP, 10BASE-T/100BASE-TX), RS-232C (115200 bps, also serving as printer I/F), USB, EXT I/O (D-sub 37 pin), analog output (D/A output voltage range, DC 0 V 〜 1.5 V） |
| function power supply |
Contact inspection, zeroing (within ± 50% of full scale) * 1, no zeroing accuracy guarantee, OVC function, contact improvement function (applied voltage of 5 V, current of 10 mA), low-power mode (open circuit voltage of 20 mV), temperature measurement function, temperature compensation (TC) function, temperature conversion (δ t) function, statistical operation function, delay function, averaging function, setting saving (panel saving), data storage function, command monitoring function (display of command and query sending and receiving status), support LabVIEW ® Driver * 2 *1: 100 M Ω or above cannot be zeroed (forcibly closed) *2: The LabVIEW driver is a trademark and registered trademark of National Instruments, Inc Rated power supply voltage: AC 100V~240V Rated power frequency: 50 Hz/60 Hz Rated power: 40 VA |
| Typical power consumption (reference value) | 16 W (measuring current 1 A, LCD light on) |
| Volume and weight | RM3545A-1: Approximately 215W × 80H × 306.5D mm (excluding protrusions), approximately 2.7 kg RM3545A-2: Approximately 215W × 80H × 306.5D mm (excluding protrusions), approximately 3.4 kg |
| attachment | Power cord x 1, temperature sensor Z2001 x 1 、 EXT I/O male connector x 1, EXT I/O connector cover x 1, spare fuse (F1.6AH 250 V) x 1, start-up guide x 1, usage precautions x 1 |