X56 示值范围0.01~11111.11,最小步进0.01,准确度0.02%,开关数:6 开关式直流标准电阻箱
ZX5N3 示值范围0.001~11111.110,最小步进0.001,准确度0.01%,开关数:7 标准电阻箱
ZX62 示值范围0~111100,最小步进10,准确度1%,开关数:4 十进电阻箱(DRB-2-4)
ZX67 示值范围0.01~11111.11,最小步进0.01,准确度0.01%,开关数:6 开关式直流标准电阻箱
ZX68 示值范围0~111111.0,最小步进0.01,准确度0.01%,开关数:6 精密十进位直流电阻箱
ZX74 示值范围0.001~1111.210,最小步进0.001,准确度0.01%,开关数:6 直流电阻箱
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