LCRmeter-Hameg_HM8118
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2020-07-01: changed: some minor changes included timeout, print-statements, averaging, and default values
2019-10-18: use of *OPC changed, *WAI removed
2019-10-14-r1: bugfix: checking frequency range corrected
2019-10-14: minor bugfix (comma removed in line 98)
2019-10-12-r1: variable renamed to 'Voltage bias'
2019-10-12: updated to work with the new LCRmeter module, supporting now frequency, voltage bias, trigger delay, and external bias as input from the GUI, added also *OPC to make sure that the device is ready for the next trigger
2019-10-08: reading values revised