假设6612C没有故障并且您施加的负载是100％电阻（即10Ω= 20V / 2A）：1）确保内部变压器跳线与应用于6612C的交流电源一致。
2）确保+/- Sense的跳线连接到+/-输出端子3）确保本地/远程开关设置为本地。
4）使用示波器检查输出纹波。
寻找60Hz或高频率。
5）在内部，F309可能是开放的。
[Unr]通常表示＃1或振荡＃4;
最坏的情况，破坏仪器。
此致，PeterW
以上来自于谷歌翻译
以下为原文
Assuming the 6612C is not defective and the load you are applying is 100% resistive (ie 10Ω = 20V/2A):
1) Make sure the internal transformer jumpers are consistent with the ac Mains being applied to the 6612C.
2) Make sure the the jumpers from +/- Sense are connect to the +/- Output terminals
3) Make sure the Local/Remote switch is set to Local.
4) Use a scope to check the output ripple. Look for 60Hz or high-freq.
5) Internally, F309 may be open.
[Unr] usually indicates #1 or oscillation #4; worst case, broken instrument.
Regards,
PeterW
假设6612C没有故障并且您施加的负载是100％电阻（即10Ω= 20V / 2A）：1）确保内部变压器跳线与应用于6612C的交流电源一致。
2）确保+/- Sense的跳线连接到+/-输出端子3）确保本地/远程开关设置为本地。
4）使用示波器检查输出纹波。
寻找60Hz或高频率。
5）在内部，F309可能是开放的。
[Unr]通常表示＃1或振荡＃4;
最坏的情况，破坏仪器。
此致，PeterW
以上来自于谷歌翻译
以下为原文
Assuming the 6612C is not defective and the load you are applying is 100% resistive (ie 10Ω = 20V/2A):
1) Make sure the internal transformer jumpers are consistent with the ac Mains being applied to the 6612C.
2) Make sure the the jumpers from +/- Sense are connect to the +/- Output terminals
3) Make sure the Local/Remote switch is set to Local.
4) Use a scope to check the output ripple. Look for 60Hz or high-freq.
5) Internally, F309 may be open.
[Unr] usually indicates #1 or oscillation #4; worst case, broken instrument.
Regards,
PeterW
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