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- 合用场合-> Suitable Situation ->
适用于各计量机构、科研与生产部门、用作精密电阻标准。
It is suitable to be used as precise resistance standard for metrology units, research institutes, and factories.
详细指标-> Detail Specification->
1. 电阻值调节范围Resistance value adjustment range：(0.001~1111.11)Ω;
Resistance value adjustment range：(0.001~1111.11)Ω;
2. 最小步进值Minimum step value：0.001Ω；
Minimum step value：0.001Ω；
3. 最大允许误差Maximum permissible error：±（0. 01% R +0.0002Ω）；
Maximum permissible error：±（0. 01% R +0.0002Ω）；
4. 额定功率Nominal power: 0.25W;
Nominal power: 0.25W;
技术规格-> Technical Specification ->
SB2015-4型精密十进位直流电阻箱采用经过特殊老化处理低温度系数的精密线绕电阻器及精密密封开关。具有精度高、性能稳定可靠、开关接触电阻变差小，结构新颖、操作方便等特点。适用于各计量与科研机构、工厂与学校作精密直流电阻标准。特别适用于检定/校准接地电阻表、电池内阻测量仪等低电阻测量仪表。
SB2015-4 Precise Decimal DC Resistance Box adopts especial aging treatment, precise wire wound resistor of low temperature coefficient and precise airproof switch. SB2015-4 has its own features such as high precise, stable performance, novel configuration and convenient operation. It is suitable to be used as Standard Precise DC Low Resistance Box for metrology units, factories, schools, scientific research institutes, and especially for testing & calibration the loop resistor, battery internal resistance and low resistance meter.
注：
我公司开发的直流系列电阻箱量程覆盖范围为0.001Ω~111.111GΩ,准确度：2％~0.01%,若有需要请致电我们。
