Ametek 7270 - Page 6

TABLE OF CONTENTS
iv
5.5.12 Dual Reference and Dual Harmonic Modes DAC Menu .......................................................................5-73
5.6 Menu Descriptions - Dual Harmonic Mode ....................................................................................................5-78
5.6.01 Dual Harmonic Setup Menu ...................................................................................................................5-78
5.6.02 Dual Harmonic Main Display ................................................................................................................5-78
5.6.03 Dual Harmonic Reference Channel Menu .............................................................................................5-82
5.6.04 Dual Harmonic Output Filters Menu 1 ..................................................................................................5-84
5.6.05 Dual Harmonic Output Filters Menu 2 ..................................................................................................5-85
5.6.06 Dual Harmonic Output Offset Harm 1 Menu .........................................................................................5-86
5.6.07 Dual Harmonic Output Offset Harm 2 Menu .........................................................................................5-87
5.6.08 Dual Harmonic Auto Functions Menus .................................................................................................5-88
5.6.09 Dual Harmonic Configuration Menu .....................................................................................................5-89
5.7 Typical Lock-in Amplifier Experiment ...........................................................................................................5-89
Chapter Six, Computer Operation
6.1 Introduction .......................................................................................................................................................6-1
6.2 Capabilities ........................................................................................................................................................6-1
6.2.01 General .....................................................................................................................................................6-1
6.2.02 Operation ..................................................................................................................................................6-1
6.2.03 Communications Monitor Menu ..............................................................................................................6-1
6.2.04 Compound Commands .............................................................................................................................6-1
6.3 RS232 Operation ...............................................................................................................................................6-1
6.3.01 Introduction ..............................................................................................................................................6-1
6.3.02 General Features .......................................................................................................................................6-2
6.3.03 Choice of Baud Rate ................................................................................................................................6-2
6.3.04 Choice of Number of Data Bits ................................................................................................................6-3
6.3.05 Choice of Parity Check Option ................................................................................................................6-3
6.3.06 Auxiliary RS232 Interface .......................................................................................................................6-3
6.3.07 Handshaking and Echoes .........................................................................................................................6-3
6.3.08 Terminators ..............................................................................................................................................6-4
6.3.09 Delimiters .................................................................................................................................................6-4
6.3.10 Status Byte, Prompts and Overload Byte .................................................................................................6-4
6.4 USB Operation ..................................................................................................................................................6-5
6.4.01 Introduction ..............................................................................................................................................6-5
6.4.02 General Features .......................................................................................................................................6-6
6.4.03 Terminator, Status Byte, and Overload Byte ...........................................................................................6-6
6.4.04 Delimiters .................................................................................................................................................6-6
6.5 Ethernet Operation ............................................................................................................................................6-7
6.5.01 Introduction ..............................................................................................................................................6-7
6.5.02 IP Address ................................................................................................................................................6-7
6.5.04 Home Page ...............................................................................................................................................6-7
6.5.03 Sockets .....................................................................................................................................................6-8
6.5.04 Terminator, Status Byte, and Overload Byte ...........................................................................................6-8
6.5.05 Delimiters .................................................................................................................................................6-9
6.6 Command Format ..............................................................................................................................................6-9
6.7 Command Descriptions ...................................................................................................................................6-10
6.7.01 Signal Channel .......................................................................................................................................6-10
6.7.02 Reference Channel .................................................................................................................................6-13
6.7.03 Signal Channel Output Filters ................................................................................................................6-15
6.7.04 Signal Channel Output Amplifiers .........................................................................................................6-17
6.7.05 Instrument Outputs .................................................................................................................................6-18