■ Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
| 3290 | 3290-10 | |
| Measurement modes | DC, AC+DC (True RMS), AC (True RMS/ Average rectified) | DC, AC+DC (True RMS), AC (True RMS) |
| Peak value display | Absolute value (of waveform peak) | Polarities independently (±peak value of waveform, in DC mode) |
| Separate AC/DC output | Separate constituent element of AC, DC | N/A |
| Output (terminal 1) | Current waveform or true RMS value (2 V / setting range), Frequency value (1 VDC / setting range) | Current waveform or true RMS value (2 V / setting range) |
| Output (terminal 2) | Rms current/Low-battery warning switch | Current integral value (1 VDC / setting range) |
| Integral current measurement | N/A | ±, +, - integral, average value |
| Rate measurement | N/A | Operating time rate, total measurement time |
| Timer settings | N/A | 99 h, 59 min. (for repeated up to 20 times) |
| Data storage | N/A | Peak, integral value, operating time rate, or other |
| Basic accuracy at DC current | 20.00/ 100.0A (using the CT9691 sensor): ±1.3 % rdg. ±0.10 A/ ±0.5 A 20.00/ 200.0A (using the CT9692 sensor): ±1.3 % rdg. ±0.10 A/ ±0.5 A 200.0/ 2000A (using the CT9693 sensor): ±1.8 % rdg. ±1.0 A/ ±5 A |
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| Basic accuracy at AC current | 20.00/ 100.0 A (using the CT9691 sensor) 45 - 66 Hz : ±1.3 % rdg. ±0.08 A/ ±0.3 A 20.00/ 200.0 A (using the CT9692 sensor) 45 - 66 Hz : ±1.3 % rdg. ±0.08 A/ ±0.3 A 200.0/ 2000 A (using the CT9693 sensor) 45 - 66 Hz : ±1.3 % rdg. ±0.8 A/ ±3 A |
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| Voltage measurement | N/A | |
| Frequency measurement | 1.00Hz to 1000Hz, Basic accuracy: ±0.3% rdg. ±1dgt. | |
| Crest factor | 2.5 or less, or rated peak value of sensor | |
| Frequency characteristics | DC, or 1 Hz to 1 kHz (accuracy guaranteed range) At monitor output: based on the using sensor |
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| Other functions | Switching measurement response speed, Turning the filter on/off (fc=550 Hz) | |
| Power supply | LR6 (AA) alkaline batteries ×4, Continuous use : 22 hr, or AC adapter 9445-02/ -03 (The 3290-10 only: +8.4 to 15.6 V DC external power supply possible) | |
| Dimensions and mass | 155 mm (6.10 in) W × 98 mm (3.86 in) H × 47 mm (1.85 in) D, 545 g (19.2 oz) | |
| Accessories | Strap ×1, LR6 (AA) alkaline batteries × 4, Instruction manual ×1 | |