个人认为, 只要数数是不是50匝,表面有没有损坏,这就可以了。
这东西本身并不影响输出精度。只是把电流感应放大而已。
你只要保证你的源是准确的就行啦。
个人观点, 仅供参考!
The 50 Turn 5500A/COIL is used as a tool for calibrating clamp type current meters that operate by two different principles ¾ as current transformers (AC only), and by the Hall Effect (Both AC and DC). It is impractical to calibrate 1000A rated current clamp meters using a 1000A source. However, by using the 50 turns of the 5500A/COIL in conjunction with a current calibrator you can effectively multiply the current of the current calibrator by a factor of 50 to support the calibration and verification of these clamp-on current meters.
General Specifications | Number of Turns | | Maximum Current | | 11A rms, continuous | | 20A rms, 2 minutes |
| Maximum Duty Cycle Derating | | < 11A, continuous | | > 11A, 2 minutes ON, 8 minutes OFF |
| Maximum Voltage | | Frequency of Operation | DC, 45-440 Hz | (should not exceed rms Voltage rating) | For the 5500A Current Output: | DC, 45-65 Hz, 0-11A | | 65-440 Hz, 0-2.19999A | For the 5520A Current Output: | DC, 45-65 Hz, 0-20A | | 65-440 Hz, 0-2.99999A | | This specification assumes that a Fluke 80i-600 Clamp Meter or equivalent is attached. Other clamp meters may limit the 5500A/5520A Current Output drive capability to less than the above. |
| Uncertainty Due to Clamp Meter/Coil Interaction | | ± (0.25% of effective output + 0.5A), for toroidal-wound current clamps, such as the Fluke 80I and 80I-1000. | | ± (0.50% of effective output + 0.5A), for current clamps like the Fluke 80i-kw, 80i-400, 80i-410, 80i-500, 80i-1010, Fluke 31, Fluke 33, or equivalent. |
| Minimum Inside Diameter of Clamp Jaws | |
[ 本帖最后由 byang1997 于 2009-3-8 22:04 编辑 ] |