Teledyne 400E 用户手册

The 

ANALOG OUTPUT submenu, located under the SETUP  MORE  DIAG menu is used to verify that the 

M400E analyzer’s three analog outputs are working properly.  The test generates a signal on all three outputs 
simultaneously as shown in the following table: 

For each of the steps the output should be within 1% of the nominal value listed in the table below except for the 
0% step, which should be within 0mV ±2 to 3 mV.  Make sure you take into account any offset that may have 
been programmed into channel (See Section 7.4.5).   

1 0 

0 

0  0  0 

2 20  20 

mV  0.2  1  2 

3 40  40 

mV  0.4  2  4 

4 60  60 

mV  0.6  3  6 

5 80  80 

mV  0.8  4  8 

6 100  100 

mV  1.0  5  10 

 

If one or more of the steps fails to be within these ranges, it is likely that there has been a failure of the either or 
both of the DACs and their associated circuitry on the motherboard.  To perform the test connect a voltmeter to 
the output in question and perform an analog output step test as follows: