这款5895型微欧姆表专为快速测量大型变压器的电阻而设计。
它同样适用于测量任何存在大量电感的电阻。还集成了一个完整的计时器和打印机，可以精确和编程的时间间隔记录精确的读数。在实际使用中，仪器还具有安全功能，以保护操作员和仪器免受与此类测量相关的危险。该仪器适用于BS171第2部分或第1部分IEC 76-5的电阻测量要求。
IEEE-488接口作为标准配置。
This Micro-Ohmmeter, type 5895, has been specifically designed for the fast measurement of the resistance of large transformers.
It is equally suitable for the measurement of any resistance where a large amount of inductance is also present. An integral timer and printer are also incorporated to enable precise readings to be recorded at exact and programmed time intervals. Whilst being practical in use the instrument also has safety features to protect both the operator and the instrument from the hazards associated with this type of measurement. This instrument is suitable for the resistance measurement requirement of BS171 Part 2 or Part 1 IEC 76-5.
IEEE-488 Interface included as standard.
与使用更传统的桥接方法相比，可以在所需时间的一小部分内实现稳定的精确测量。对于平均尺寸配电变压器，电阻读数在10秒内可用。
典型的阅读时间 | 10秒 | 11KV，220千伏安变压器 |
40秒 | 132 KV，240 MVA变压器 | |
100秒 | 400KV，220KVA变压器 |
Stable accurate measurements can be achieved in a fraction of the time required than when using more traditional bridge methods. For an average size distribution transformer the resistance reading is available within 10 seconds.
Typical Reading Times | 10 Seconds | 11KV, 220 KVA Transformer |
40 Seconds | 132 KV, 240 MVA Transformer | |
100 Seconds | 400KV, 220KVA Transformer |
高测试电流和独特电路用于快速驱动磁芯饱和并消除磁场的任何振荡，从而可以快速获得稳定的读数。当仪器处于“读取”模式时，大的高强度LED会亮起，当仪器切换到“零”时，它会保持打开，直到磁场坍塌时在变压器中产生的任何EMF已降至安全水平。导线被移除。
A high test current and unique circuitry is used to rapidly drive the core into saturation and to eliminate any oscillation of the magnetic field, thus enabling a steady reading to be obtained quickly. A large high intensity LED is illuminated when the instrument is in the “Read” mode and remains ON when the instrument is switched to “Zero” until any E.M.F.’s, generated in the transformer as the magnetic field collapses, have fallen to a safe level for the leads to be removed.
请参阅下表，了解本产品规格的详细信息。
范围 | 满量程 | 解析度 | 测试电流? | 准确性 |
100Ω | 180.00??Ω | 10??μΩ | 0.1安培 | 0.1％ |
10Ω | 18.000??Ω | 1.0??μΩ | 0.5安培 | 0.1％ |
1Ω | 1.8000??Ω | 0.1??μΩ | 1.0安培 | 0.1％ |
100μΩ | 180.00??μΩ | 10??μΩ | 5.0安培 | 0.1％ |
10?μΩ | 18.000??μΩ | 1??μΩ | 5.0安培 | 0.1％ |
10?μΩ | 1.8000??μΩ | 0.1??μΩ | 10安培 | 0.2％ |
供应 | 110/120 V 50/60 Hz | 220/240 V 50/60 Hz | ||
VA等级? | 500 VA | |||
外形尺寸? | 460 x 460 x 150毫米 | |||
净重?? | 16.5公斤 | |||
See the table below for a run-down of this product’s specifications.
Range | Full Scale | Resolution | Test Current? | Accuracy |
100Ω | 180.00?Ω | 10??Ω | 0.1 Amps | 0.1% |
10Ω | 18.000?Ω | 1.0??Ω | 0.5 amps | 0.1% |
1Ω | 1.8000?Ω | 0.1??Ω | 1.0 Amps | 0.1% |
100?Ω | 180.00??Ω | 10??Ω | 5.0 Amps | 0.1% |
10?Ω | 18.000??Ω | 1??Ω | 5.0 Amps | 0.1% |
10?Ω | 1.8000??Ω | 0.1??Ω | 10 Amps | 0.2% |
Supply | 110/120 V 50/60 Hz | 220/240 V 50/60 Hz | ||
VA Rating? | 500 VA | |||
Dimensions? | 460 x 460 x 150 mm | |||
Net Weight?? | 16.5kg | |||
