Mô tả sản phẩm: Fluke 1621
|
General specifications
|
||
| Measuring functions | 3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage | |
| Intrinsic error | Refers to the reference temperature range and is guaranteed for one year | |
| Measuring rate | 2 measurements/second | |
| Battery[1] | One 9 volt alkaline (LR61) | |
| Battery condition | LO-BAT is displayed if voltage drops below 6.5 V | |
| Voltages | Between jacks H/C2 and E/C1: | 250 Veff maximum (effective voltage) |
| Between jacks S/P2 and E/C1: | 250 Veff maximum | |
| Climatic class | VDE/VDI 3540 RZ (conforming to KWG as per DIN 40040, 4/87) | |
| Temperature performance[2] | Working: | -10 °C to +50 °C (+14 °F to +122 °F) |
| Operating: | 0 °C to +35 °C (+32 °F to +95 °F) | |
| Storage: | -20 °C to +60 °C (+68 °F to +140 °F) | |
| Reference: | +23 °C ± 2 °C (+73 °F ± 4 °F) | |
| Temperature coefficient | ± 0.1 % of range per degree Kelvin | |
| Safety | IEC/EN 61010-1, 600 V CAT II, pollution degree 2 | |
| Dimensions | 113 mm x 54 mm x 216 mm (4.5 in x 2.1 in x 8.5 in), including holster | |
| Weight | 850 g (1.9 lb), including standard accessories, volume approximately 600 cm3 | |
| Note: | [1]If the tester is not going to be used, or is being stored for a long period, remove the battery and store separately from the tester to avoid damage from battery leakage. | |
| Note: | [2]The four temperature ranges for the tester exists to satisfy European Standards requirements; the instrument can be used over the full working temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use. | |
| Electrical specifications | ||
| Maximum deviations: | E1 Influence factor | Position |
| E1 Deviation influence | 0 % | |
| E2 Influence factor | Supply voltage | |
| E2 Deviation influence | 0 % | |
| E3 Influence factor | Temperature E3 | |
| E3 Deviation influence | 2.3 % | |
| E4 Influence factor | Serial interference voltage (20 V) | |
| E4 Deviation influence | 0.6 % | |
| E5 Influence factor | Probe- and auxiliary probe resistance | |
| E5 Deviation influence | 10 % | |
| Test voltage | 3.7 kV | |
| Protection type | IP 40; IEC/EN 60529 | |
| Electromagnetic compatibility | Emission: IEC/EN 61326 Class B | |
| Immunity: IEC/EN 61326 Annex C | ||
| RE resistance measurement | Measuring method | Current-voltage measurement with improved cross-talk attenuation, no compensation of measuring lead resistance, with probe (3-pole) or without probe (2-pole), as per IEC/EN 61557-5 |
| Open circuit voltage | 23 to 24 V ac | |
| Short circuit current | > 50 mA ac | |
| Measuring frequency | 128 Hz | |
| Maximum permissible overload | 250 Veff | |
| Measuring time | 8 seconds (average from when START is pressed) | |
| Limit input | Tester retains set value even if instrument is turned off (assuming battery power supply is sufficient) | |
| Automatic changeover of resolution | RH | < 7 kΩ |
| Resolution | 0.01 Ω | |
| RH | < 50 kΩ | |
| Resolution | 0.1 Ω | |
| RH | > 50 kΩ | |
| Resolution | 1 Ω | |
| Interference voltage display dc + ac | Vmax | 30 Veff |
| Common mode rejection | > 80 dB at 50 Hz and 60 Hz | |
| Ri | 680 kΩ | |
| Measuring uncertainty | < 10 % for pure ac and dc signals | |
| Measuring range | ||
| 0.15 Ω to 20 Ω | Resolution | 0.01 Ω |
| Display range | 0 to 19.99 Ω | |
| 200 Ω | Resolution | 0.1 Ω |
| Display range | 20 to 199.9 Ω | |
| 2 kΩ | Resolution | 1 Ω |
| Display range | 200 to 1999 Ω | |
| Intrinsic uncertainty | ± (6 % of measured value + 5D) | |
| Operating uncertainty IEC 61557[1] | ± (18 % of measured value + 5D) | |
| Notes: | [1] Covers all deviations caused by influence quantities E1-E5. | |
| If the deviation E4 caused by high probe or auxiliary probe resistance is higher than specified flashes. | ||
| Measured values are outside of the specified operating uncertainty. | ||
