Commands and Tips for Third-Party Devices
Waters 600E Pump: Program Tips

• Flow ramps (Flow and %B, %C, %D commands) cannot be executed at negative program times (t < 0)

• Flow or gradient ramps must start at program times = 0

• Hold and Stop Flow commands cannot be executed manually

• The pump does not deliver non-linear eluent gradient curves

• Degassing properties cannot be set at program time > 0

• Pressure limits cannot be set at program time > 0

• The pump can only perform ramps with a minimum timestamp of 0.25 min

• The minimum program time resolution is 0.25 min, program times below the resolution will be rounded

• The pump is not able to execute programmed events such as relay switches and alarms

• The pump does not support a motor ON/OFF command.

Hints for automatically generated programs

The Waters 600E pump does not provide PGM wizard support for customized programs. Therefore, use the PGM wizard to automatically create the basic structure of a program and then edit PGM files manually using the F8 Commands box. For more information also refer to  Manually Editing a PGM File in the Commands View.

When created automatically, each time step of the PGM contains duplicate commands for flow and eluent composition. These redundant parameters cannot be processed by the Waters 600E pump and must therefore be eliminated from the PGM script. See the PGM below for details:

      UV_VIS_2.Average =            On
      UV_VIS_2.FilterTimeConstant = 1.0 [s]
      UV_VIS_2.FilterType =         Hamming
0.000 UV_VIS_1.Autozero
      UV_VIS_2.Autozero
      Flow =                        1.00 [ml/min]
      %B =                          50 [%]      
      %C =                          0 [%]
      %D =                          0 [%]
      Wait                          UV.Ready and Sampler.Ready
      Inject
      UV_VIS_1.AcqOn
      UV_VIS_2.AcqOn
;     Flow =                        1.00 [ml/min]  Duplicate flow and eluent  
;     %B =                          50 [%]         composition parameters.
;     %C =                          0 [%]          Please eliminate parameters
;     %D =                          0 [%]          from PGM script.  
5.000 UV_VIS_1.AcqOn
      UV_VIS_2.AcqOn
      Flow =                        2.00 [ml/min]
      %B =                          100 [%]
;     Flow =                        1.00 [ml/min]  Duplicate flow and eluent  
;     %B =                          50 [%]         composition parameters.
;     %C =                          0 [%]          Please eliminate parameters
;     %D =                          0 [%]          from PGM script. 
      
      End