Teledyne 400E Benutzerhandbuch

The M400E analyzer’s electronic systems will operate with any of the specified power regimes.  As long as 
system is connected to 100-120 VAC or 220-240 VAC at either 50 or 60 Hz it will turn on and after about 30 
seconds show a front panel display.   

  Internally, the status LEDs located on the Relay PCA, Motherboard and CPU should turn on as soon as 

the power is supplied.    

  If they do not, check the circuit breaker built into the ON/OFF switch on the instruments front panel  

The analyzer is correctly configured for the AC mains voltage in use if: 

  The Sample Pump is running.   

If incorrect power is suspected, check that the correct voltage and frequency is present at the line input on the 
rear panel.   

  Verify that the pump power configuration plug is properly wired (see Section 11.3.6.1) 
  If the unit is set for 230 VAC and is plugged into 115 VAC or 100 VAC the sample pump will not start. 
  If the unit is set for 115 or 100 VAC and is plugged into a 230 VAC circuit, the circuit breaker built into the 

ON/OFF Switch on the front panel will trip to the OFF position immediately after power is switched on.   

 

 

Electrical Shock Hazard

 

If you have determined that the analyzer’s AC mains power is working, but the unit is still not operating properly, 
there may be a problem with one of the instrument’s switching power supplies.  The supplies can have two 
faults, namely no DC output, and noisy output.   
 
To assist tracing DC Power Supply problems, the wiring used to connect the various printed circuit assemblies 
and DC Powered components and the associated test points on the relay PCA follow a standard color-coding 
scheme as defined in the following table.   
 

DGND 

Black Digital 

ground 

+5V 

Red  

AGND 

Green Analog 

ground 

+15V 

Blue  

-15V 

Yellow  

+12R 

Purple 

12 V return (ground) line 

+12V 

Orange