Measuring Instrument & Tester
AC mΩ Meter
MODEL 358E
- ■Suitable for measurement of resistance and voltage of Fuell cell
- ■Measuring range 30 mΩ, 300 mΩ and 3 Ω with measuring frequency 10 kHz
- ■Variation of output, RS-232C and analog outputs for resistane and voltage
- ■Optional BCD output is also available
Model Designation
| 358E | - | □ |
| ① |
| Code | Specification |
|---|---|
| X | RS-232C + analog output (standard) |
| 03 | BCD (TTL output) + RS-232C + analog output |
| 04N | BCD (NPN output) + RS-232C + analog output |
| 04P | BCD (PNP output) + RS-232C + analog output |
Measuring range
【Resistance Measurement】
| Sampling speed: SLOW and MEDIUM | |||
|---|---|---|---|
| Measurement Range | 30 mΩ | 300 mΩ | 3 Ω |
| Resolution | 1 μΩ | 10 μΩ | 100 μΩ |
| Measurement Current | 7.4mA | 1 mA | 100 μA |
| Accuracy* | ± (1.0 % of rdg.+ 20 digit) | ± (1.0 % of rdg.+ 15 digit) | |
| Temperature coefficient | ± (0.1 % of rdg.+ 2 digit)/°C | ± (0.1 % of rdg.+1digit)/°C | |
| Open terminal voltage | 1 V peak or less | ||
- *Accuracy:
- Specified at 23 ℃ ± 5 ℃ 45 to 75 % RH
| Sampling speed: SLOW and MEDIUM mode | |||
|---|---|---|---|
| Measurement Range | 30 mΩ | 300 mΩ | 3 Ω |
| Resolution | 1 μΩ | 10 μΩ | 100 μΩ |
| Measurement Current | 7.4mA | 1 mA | 100 μA |
| Accuracy* | ± (1.0 % of rdg.+ 15 digit) | ± (1.0 % of rdg.+ 5 digit) | |
| Temperature coefficient | ± (0.1 % of rdg.+ 1.5 digit)/°C | ± (0.1 % of rdg.+1digit)/°C | |
| Open terminal voltage | 1 V peak or less | ||
- *Accuracy:
- Specified at 23 ℃ ± 5 ℃ 45 to 75 % RH
【Voltage measurement】
| Sampling cycle: SLOW, MEDIUM and FAST mode | ||
|---|---|---|
| Measuring range | DC ± 5 V | DC ± 50 V |
| Resolution | 100 µV (1 mV) | 1 mV (10 mV) |
| Accuracy | ± (0.05% of rdg. + 5 digit.)* | |
| Temperature coefficient | ± （0.005% of rdg. + 0.5 digit.)/℃ | |
- Accuracy:
- Specified at 23 ℃ ± 5 ℃, 45 to 75 %RH
3 digits added for sampling MEDIUM
5 digits added for sampling speed FAST
General Specifications
| Measuring method | AC 4-terminal method |
|---|---|
| Maximum allowable applied voltage | All ranges 60 V DC |
| Measurement frequency | AC 10 kHz ± 20 Hz |
| Lead Wire Resistance | SOURCE Hi and SOURCE Lo 0.4Ω or less |
| Display | OLED display Resistance measurement: 35000 or 3500 Voltage measurement: 50050 or 5050 (with negative sign) With Zero suppression function |
| Over range display | OVER, UNDER |
| Sampling cycle | SLOW: 2.5 times/s MEDIUM: 5 times/s FAST: 60 times/sec, 50 times/s |
| Response speed | SLOW: approx. 1.2s MEDIUM: approx. 600 ms FAST: approx. 50 ms (at sampling cycle 60 times/s) |
| Insulation resistance | Between power supply terminal and Outer case: DC 500 V More than 100 MΩ Between mesuring terminal and Control terminal: DC 500 V More than 100 MΩ |
| Withstand voltage | Measuring terminal, Control terminal, RS-232C and Outer case: AC 500 V 1 minute Between power supply terminal and Outer case: AC 1500 V 1 minute |
| Parameter retention | Parameters are saved and retained in non-volatile memory. |
| Power supply | AC 100 to 240 V (50/60 Hz) |
| Power consumption | Approx. 10 VA, Approx. 17 VA |
| Ambient operation temperature | 0 to 40 °C, 80 % RH or less (no condensation) |
| Storage temperature | -20 to 65 °C, 80 % RH or less (no condensation) |
| Weight | Approx. 1.3 kg |
| Size | 205(W) x 65(H) x 169(D) mm |
| Accessory | Power cord 1 pc Operating instructions 1 pc Utility software (CD) 1pc |
| Optional Accessories | Kelvin clip 5811-24B Foot switch for utility software 5858-04U RS-232C to USB conversion cable 5858-20 Panel-mount bracket 5811-31 |
