| Model | ETCOHM-202-A | ETCOHM-202-B | ETCOHM-202-C | ETCOHM-202-D |
| Number of scanning channels | 30 | 20 | 10 | 4 |
| Test pattern | Stand-alone mode, scanning mode |
| Display | 24-bit colour, RGB true colour TFT LCD, 480 × 272 resolution |
| Readout digit | 4½ digit |
| Measurement range | 1µΩ ~ 300kΩ |
| Fundamental accuracy | 0.05% |
| Resistance measurement time | FAST: 12ms/channel; MED: 27ms/channel; SLOW1: 120ms/channel; SLOW2: 244ms/channel |
| Temperature measurement time | 30 ±10 ms |
| Measurement segment configuration | Four-terminal |
| Low voltage measurement | Open circuit voltage ≤40mV; Effective range: 2Ω, 20Ω, 200Ω, 2kΩ |
| Thermoelectric elimination | √ |
| Measurement setup parameter saving | Group of 100 |
| Resistance Range | 200 mΩ | 200 mΩ | 2 Ω | 20 Ω | 200 Ω | 2 kΩ | 20 kΩ | 300 Ω | 300 Ω | |
| Test Current | Not | 1 A | 100 mA | 10 mA | 1 mA | 100 µA | 100 µA | 10 µA | Not | |
| Item | Specification |
| Temperature measurement | Sensor: PT100, PT500; Test range: −10.0°C ~ 299.9°C; Accuracy: 0.2°C; Display range: −99.9°C ~ 999.9°C |
| Other functions | Temperature compensation function, temperature conversion function |
| Comparison paradigm | Individual machine and channel settings |
| Signal output | HI / IN / LO |
| Rapid response | Chirp mode: OFF, IN, HI / LO |
| Limit setting method | 3 steps: absolute upper/lower limit, percentage upper/lower limit + nominal value |
| Interface | USB DEVICE, USB HOST, RS232, HANDLER |
| Attachment | Power cord, four-terminal low resistance test lead, four-terminal low resistance scanning test lead, PT100 temperature sensing |
| Weight | 3.6 kg |
| Overall dimensions | 235 × 105 × 360 mm |
