2.11 Adjusting the power display of an internal monitor diode 38
2.12 Temperature window protection 40
2.13 Selecting the temperature sensor 40
2.14 Polarity check of the TEC element 41
2.15 Setup and function of temperature controllers 42
2.15.1 Statements and implications 42
2.15.2 Demands to the ideal temperature control loop 43
2.15.3 Influences on the real temperature control loop 43
2.15.4 PID adjustment 45
2.16 Analog modulation input 48
2.17 Analog output (I
LD
) 49
2.18 Laser and TEC current ON/OFF 50
2.19 CP gain 51
2.20 BNC connector TEMP OUT 51
2.21 BNC connector Temp tune 52
2.22 Using the interlock input 52
2.22.1 Examples of various protection functions 53
2.23 Laser voltage measurement 54
3 Remote control by a PC (ITC5xx-IEEE) 55
3.1 IEEE488 Interface 56
3.1.1 Interface specifications 56
3.1.2 Setting up the Interface 57
3.1.3 Connecting the Instrument 59
3.1.4 IEEE488 bus commands 60
3.2 Before Programming 62
3.2.1 Nomenclature 62
3.2.2 Program and response messages 62
3.2.3 Data format 63
3.3 Common commands and queries 65
3.3.1 Identification query 65
3.3.2 Reset 65
3.3.3 Self-test query 65
3.3.4 Set Operation-complete bit 65
3.3.5 Operation-complete query 66
3.3.6 Wait 66
3.3.7 Event-Status-Enable-Register (ESE) 66
3.3.8 Query Standard-Event-Status-Register (ESR) 66
3.3.9 Service-Request-Enable-Register (SRE) 67
3.3.10 Query Status-Byte-Register (STB) 67
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