怎么确定U3606A是否正常工作

我不确定我的全新U3606A是否正常工作。我正在尝试用U3606A替换DMM和Agilent E3631A电源进行测试和开发，但我似乎无法获得新单元的供应部分
我看到的问题是全新的U3606A在从CC转换到低负载后会出现非常大的电压过冲。
以下是问题的一个示例：选择S1（30V / 1A）电源模式，将电压调整为10V并将电流限制设置为1A，调整电源使输出不会因过电流而关闭，使用3.5欧姆电阻
为了负载。
- 当开路输出为10V时， - 当电阻连接在电源和地之间时，电源将过电流2.7A持续300ms（电阻上为9.3V），然后限制为1A（电阻器上方为3.5V）。
- 当电阻器与地断开时，电源电压下降到0V持续300ms，然后上升到30V持续1秒，然后在300ms的缓慢下降时再次下降到10V。这个电源是应该这样做还是发生故障。
当我在E3631A上进行相同的实验时，电源会立即通过负载连接降至3.5V，然后在断开连接后立即升至10V，无下冲或过冲。
这是我需要的行为类型。



     以下为原文

  I am unsure as to whether my brand new U3606A is working properly or not.
I'm trying to replace a DMM and Agilent E3631A supply with the U3606A for test and development but I can't seem to get the supply part of the new unit to behave like the old one.
The problem I'm seeing is that the Brand New U3606A will exhibit a very large voltage overshoot after transitioning from CC to low load. Here's an example of the problem:
Choose the S1 (30V/1A) supply mode, adjust the voltage to 10V and set the current limit to 1A, adjust the supply so the output does not shut off with over current, use a 3.5ohm resistor for a load.  
-When open the output is at 10V,
-When the resistor is connected between the supply power and ground the supply will over current 2.7A for 300ms (9.3V over the resistor), then limit to 1A (3.5V over the reistor).  
-When the resistor is disconnected from ground the supply voltage goes down to 0V for 300ms, then shoots up to 30V for 1 second, then drops to 10V again in a slow 300ms drop.

Is this supply supposed to do this or is it malfunctioning.  
When I do this same experiment on the E3631A the  supply immediately drops to 3.5V with the load connection, then immediately rises to 10V after it is disconnected with no undershoot or overshoot.  This is the the type of behavior that I require.