The HIOKI RM3546 precision resistance meter supports weld-resistance inspection with advanced offset-voltage and temperature compensation. Its path-resistance tolerance helps accommodate test fixtures and switching systems on production lines.
Configuration: Measurement leads and multiplexer units are sold separately. A spare fuse is not included with the RM3546.
Contact RCC Electronics for configuration assistance and Canadian application support.
Instrument specifications apply under HIOKI's stated measurement conditions. Kit contents are listed separately.
| Resistance range (13 ranges) | [Range, Maximum display value, Resolutions, Testing current (Measurement current) ] 1000 μΩ: 1200.000 μΩ, 1 nΩ, 1 A/500 mA 10 mΩ: 12.000 00 mΩ, 10 nΩ, 1 A/500 mA 100 mΩ: 120.000 0 mΩ, 100 nΩ, 1 A/100 mA 1000 mΩ: 1200.000 mΩ, 1 μΩ, 100 mA/10 mA 10 Ω: 12.000 00 Ω, 10 μΩ, 10 mA/1 mA 100 Ω: 120.000 0 Ω, 100 μΩ, 10 mA/1 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 MΩ (100 MΩ range high-precision mode): 120.000 0 MΩ, 100 Ω, 100 nA 1000 MΩ: 1200.0 MΩ, 100 kΩ, 1 μA or less |
|---|---|
| Representative accuracy (High mode, A-OVC function enabled, SLOW2, no zero adjustment) | 1000 μΩ range: ±0.045% rdg ±0.010 % f.s. 10 mΩ range: ±0.045% rdg ±0.001 % f.s. 100 mΩ range: ±0.045% rdg ±0.001 % f.s. 1000 mΩ range: ±0.012% rdg ±0.001 % f.s. 1000 Ω range: ±0.006% rdg ±0.001 % f.s. |
| Testing current (Measurement current) | High mode: 1000μΩ (1 A) to 1000 MΩ (up to 1 μA) Low mode: 100 mΩ (100 mA) to 100 Ω (1 mA) |
| Measurement speed | Representative value: FAST (2.3 ms) / MED (50 Hz: 22 ms, 60 Hz: 19 ms) / SLOW1 (102 ms) / SLOW2 (202 ms) PR10 mΩ range*: FAST (21 ms) / MED (50 Hz: 41 ms, 60 Hz: 37 ms) / SLOW1 (121 ms) / SLOW2 (221 ms) |
| Path resistance tolerance (reference values) Path resistance between SOURCE B and SOURCE A (other than measurement target) | Range of 100 mΩ or less (PR* mode off): max. 3.5 Ω Range of 100 mΩ or less (PR* mode on): max. 9.0 Ω |
| Maximum open-terminal voltage | Range: 1000 Ω or less: 8.0 V Range: 10 kΩ or greater: 20 V |
| Temperature measurement | Temperature Sensor (Z2001[included accessories]): -10.0˚C to 99.9˚C Analog input (Ex: Infrared thermometer): DC 0 V to 2.0 V |
| Built-in Multiplexer (option) | Multiplexer unit Z3003 Number of installable units: Max. 2 Maximum number of channels: 20 channels (4-wire method), 42 channels (2-wire method) Switching time: 30 ms |
| External Multiplexer (option) | Switch Mainframe Maximum number of channels (SW1001): 33 channels (4-wire method) Maximum number of channels (SW1002): 132 channels (4-wire method) Switching time: 11 ms |
| Communication interfaces | LAN (TCP/IP, 10BASE-T/100BASE-TX), RS-232C (Max. 115200 bps, also used as printer interface), USB, EXT I/O (D-sub 37-pin, Analog output (D/A output voltage range: DC 0 V to 1.5 V) |
| Functions | Contact check, Zero adjustment (within each range ±50% f.s.) *1, Zero-adjustment-free accuracy guaranteed, OVC function, A-OVC function, Contact improvement function (max. applied voltage: 5V; max. applied current: 10 mA), Auto-hold function, Comparator, Temperature measurement function, Temperature correction (TC) function, Advanced Temperature Correction (A-TC) function, Temperature conversion (ΔT) function, Statistical calculation function, Delay function, Averaging function, Saving panels (saving of measurement conditions), Data memory function, Command monitor function (display of send/receive status of commands and queries),LabVIEW® Driver compatible*2 *1: Zero adjustment forcibly disabled for 100 MΩ or greater *2: LabVIEW Driver is the trademark or registered trademark of National Instruments. |
| Power supply | 100 V to 240 V AC, 50 Hz/60 Hz, Rated power consumption: 40 VA max. |
| Normal power consumption (Reference value) | 20 W |
| Dimensions and mass | 215 mm (8.46 in.) W × 80 mm (3.15 in.) H × 306.5 mm (12.07 in.) D (excluding protruding parts), 3.4 kg (119.9 oz.) |
This main-unit configuration is supplied with the standard items below.
| Qty | Model | Included item |
|---|---|---|
| 1 | RM3546 | precision resistance meter |
These are supplied with the main instrument. Items already counted in the kit table are not repeated.
| Qty | Model | Included item |
|---|---|---|
| 1 | — | Power cord |
| 1 | Z2001 | Temperature sensor |
| 1 | — | Male EXT I/O connector |
| 1 | — | EXT I/O connector cover |
| 1 | — | Startup guide |
| 1 | — | Operating precautions |
Included versus optional: Measurement leads and multiplexer units are sold separately. A spare fuse is not included with the RM3546.