fix stuipd error

src/python_spectrometer/daq/zurich_instruments.py

@@ -225,7 +225,7 @@ class ZurichInstrumentsMFLIDAQ(_ZurichInstrumentsDevice):
         .. [1] https://www.zhinst.com/europe/en/resources/principles-of-lock-in-detection
 
         """
-        settings = self.DAQSettings(freq=freq, **settings)
+        settings = self.DAQSettings(freq=freq, **settings).to_consistent_dict()
 
         if 'bandwidth' in settings:
             warnings.warn('The bandwidth parameter has been replaced by f_max',