Fix: SR560 Add DC cutoff and make this the default low

microsoft · Jan 19, 2017 · b19803e · b19803e
1 parent 9c7a960
commit b19803e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/qcodes/instrument_drivers/stanford_research/SR560.py b/qcodes/instrument_drivers/stanford_research/SR560.py
@@ -76,15 +76,15 @@ class SR560(Instrument):
     def __init__(self, name, **kwargs):
         super().__init__(name, **kwargs)
 
-        cutoffs = [0.03, 0.1, 0.3, 1, 3, 10, 30, 100, 300, 1000,
+        cutoffs = ['DC', 0.03, 0.1, 0.3, 1, 3, 10, 30, 100, 300, 1000,
                    3000, 10000, 30000, 100000, 300000, 1000000]
 
         gains = [1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000,
                  10000, 20000, 50000]
 
         self.add_parameter('cutoff_lo',
                            parameter_class=ManualParameter,
-                           initial_value=0.03,
+                           initial_value='DC',
                            label='High pass',
                            unit='Hz',
                            vals=Enum(*cutoffs))