THORLABS ITC8 Series Manuel utilisateur

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Operation Manual

Thorlabs Instrumentation

PRO8000 (-4) / PRO800

Combined module ITC8xxx

2010

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Version: 3.1

Date: 14.09.2010

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Contents Page

1General description of the combined module ITC8xxx 2

1.1 Safety 2

1.2 Features 4

1.2.1 Safety measures for the laser diode and the TEC element 4

1.2.2 Ordering Codes: 5

1.2.3 General functions 6

1.3 Technical data 7

1.3.1 Common data ITC8xxx 7

1.3.2 ITC8022 9

1.3.3 ITC8052 10

1.3.4 ITC8102 11

1.4 Operating elements at the front of the module 12

1.5 Presettings 13

1.5.1 Hardware limit ILIM 13

1.5.2 Software limits IMAX and ITE LIM 14

1.6 Connecting components 15

1.6.1 Pin assignment LD connector 16

1.6.2 Connecting laser- and monitor diode 17

1.6.3 Connecting interlock and status LED 18

1.6.4 Pin assignment TEC connector 19

1.6.5 Connecting a thermistor 20

1.6.6 Connecting an AD590 20

1.6.7 Connecting an LM335 21

1.6.8 Connecting the TEC element 21

1.6.9 Polarity check of the TEC element 22

1.6.10 Connecting the status LED (not ITC8xxxDS15!) 22

1.6.11 Pin assignment ITC8xxxDS15 23

1.7 Optimization of temperature control 24

1.7.1 Setup and function of temperature controllers 24

1.7.2 PID adjustment 25

2Operating the ITC8xxx 27

2.1 Functions in the main menu 27

2.1.1 Display 27

2.1.2 Selecting a module 28

2.1.3 Setting the main parameter 28

2.2 Functions in the channel menu 29

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2.2.1 Display 29

2.2.2 Changing parameters 31

2.2.3 Selecting the polarity of the laser and the monitor diode 32

2.2.4 Calibrating the monitor diode 32

2.2.5 Adjusting the bias voltage for the monitor diode 33

2.2.6 Selecting constant current or constant power mode 33

2.2.7 Selecting the type of the sensor 34

2.2.8 Calibrating a thermistor 34

2.2.9 Setting a temperature window 36

2.2.10 Activating the temperature protection 36

2.2.11 Setting the P-, I- and D-share of the control loop 36

2.3 Switching on and off 37

2.4 Error messages 39

3Communication with a control computer 41

3.1 General notes on remote control 41

3.1.1 Nomenclature 41

3.1.2 Data format 42

3.2 Commands 43

3.2.1 Select a module slot 43

3.2.2 Calibrating a photo diode (CALPD) 43

3.2.3 Thermistor calibration (exponential method) 44

3.2.4 Thermistor calibration (Steinhart-Hart method) 45

3.2.5 Programming the laser diode current (ILD) 46

3.2.6 Programming the monitor diode current (IMD) 47

3.2.7 Switching the I-share on and off (INTEG) 48

3.2.8 Reading the TEC current (ITE) 48

3.2.9 Switching the laser output on and off (LASER) 49

3.2.10 Selecting the laser diode polarity (LDPOL) 49

3.2.11 Programming the laser diode software-limit (LIMC) 49

3.2.12 Reading the laser diode hardware-limit (LIMCP) 50

3.2.13 Programming the TEC current software-limit (LIMT) 50

3.2.14 Selecting the mode of operation (MODE) 50

3.2.15 Selecting the photo diode polarity (PDPOL) 51

3.2.16 Programming the optical power (POPT) 51

3.2.17 Programming the resistance of the thermistor (RESI) 52

3.2.18 Programming the resistance window (RWIN) 53

3.2.19 Selecting the sensor (SENS) 53

3.2.20 Programming the PID shares (SHAREP, -I, -D) 54

3.2.21 Switching the TEC on and off (TEC) 54

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3.2.22 Programming the temperature (TEMP) 55

3.2.23 Switching the temperature protection on and off (TP) 55

3.2.24 Programming the temperature window (TWIN) 56

3.2.25 Read Type of module (TYPE) 56

3.2.26 Programming the bias voltage (VBIAS) 57

3.2.27 Reading the laser diode voltage (VLD) 58

3.2.28 Reading the TEC voltage (VTE) 58

3.3 IEEE error messages of the ITC8xxx 59

3.4 Status reporting 61

3.4.1 Standard event status register (ESR) 63

3.4.2 Standard event status enable register (ESE) 63

3.4.3 Status byte register (STB) 64

3.4.4 Service request enable register (SRE) 64

3.4.5 Reading the STB by detecting SRQ 64

3.4.6 Reading the STB by "*STB?" command 64

3.4.7 Reading the STB by serial poll 65

3.4.8 Device error condition register (DEC) 65

3.4.9 Device error event register (DEE) 65

3.4.10 Device error event enable register (EDE) 65

4Service and Maintenance 66

4.1 General remarks 66

4.2 Troubleshooting 66

5Appendix 69

5.1 Warranty 69

5.2 Thorlabs “End of Life” policy (WEEE) 70

5.2.1 Waste treatment on your own responsibility 70

5.2.2 Ecological background 71

5.3 List of acronyms 72

5.4 List of figures 74

5.5 Certifications and compliances 75

5.6 Copyright 76

5.7 Addresses 77

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We aim to develop and produce the best solution for your application in the

field of optical measurement technique. To help us to come up to your

expectations and develop our products permanently we need your ideas and

suggestions. Therefore, please let us know about possible criticism or ideas.

We and our international partners are looking forward to hearing from you.

In the displays shown by the PRO8 you may find the name PROFILE.

PROFILE was the name of the manufacturer before it was acquired by Thorlabs

and renamed to Thorlabs.

Thorlabs

This part of the instruction manual contains every specific information on how to

operate a current module ITC8xxx. A general description is followed by explanations

of how to operate the unit manually. You will also find every information about remote

control via the IEEE 488 computer interface.

Attention

This manual contains “WARNINGS” and “ATTENTION” label in this

form to indicate dangers for persons or possible damage of equip-

ment.

Please read these advises carefully!

NOTE

This manual also contains “NOTES” and “HINTS” written in this form.

2 Safety

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1 General description of the combined module ITC8xxx

1.1 Safety

Attention 

All statements regarding safety of operation and technical data in

this instruction manual will only apply when the unit is operated

correctly.

Before applying power to your PRO8000 (-4) / PRO800 system, make

sure that the protective conductor of the 3 conductor mains power

cord is correctly connected to the protective earth contact of the

socket outlet!

Improper grounding can cause electric shock with damages to your

health or even death!

Modules may only be installed or removed with the mainframe

switched off.

All modules must be fixed with all screws provided for this purpose.

Modules of the 8000 series must only be operated in the mainframe

PRO8000, PRO8000-4 or PRO800.

All modules must only be operated with duly shielded connection

cables.

Only with written consent from Thorlabs may changes to single

components be carried out or components not supplied by Thorlabs

be used.

This precision device is only dispatchable if duly packed into the

complete original packaging including the plastic form parts. If

necessary, ask for a replacement package.

Safety 3

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Attention 

Laser modules can deliver up to several 100mW of (maybe) invisible

laser radiation!

When operated incorrectly, this can cause severe damage to your

eyes and health!

Be sure to pay strict attention to the safety recommendations of the

appropriate laser safety class!

This laser safety class is marked on your PRO8000 (-4) / PRO800

plug-in module or on your external laser source used.

Attention 

Mobile telephones, cellular phones or other radio transmitters are

not to be used within the range of three meters of this unit since the

electromagnetic field intensity may then exceed the maximum

allowed disturbance values according to EN 50 082-1.

4 Features

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1.2 Features

1.2.1 Safety measures for the laser diode and the TEC element

To protect the connected laser diodes and the TEC elements the combined controller

ITC8xxx contains the following protection circuits:

•Soft start when switching on the laser diode current

Protection against capacitive and inductive parasitic elements (switching peaks).

•Software limit for the injection current and the TEC element in all operating

modes and additional hardware limit for the injection current

Protection against thermal destruction of the devices.

•Interruption control of the connection cable to the laser diode (interlock)

Protection against accidental operation.

•Contact protection of the laser diode (open circuit)

Protection against cable damage or bad contact.

•Electronic short-circuit switch for the laser diode

Protection against static discharge when touching the switched off laser.

•Protection of the sensor

Protection against the use of an wrong temperature sensor / protection against line

interruption to the temperature sensor.

•Separate on and off function for each module

Protection against operating errors.

•Separate over-temperature protection for each module

Protection against thermal failure of the module.

•Control LED for the laser and/or TEC current active

•Mains filter

Protection against line transients and interferences.

•Line failure protection

In case of line failure/line damage the combined module must explicitly be

switched on anew since it cannot be taken for granted that all components of the

measurement setup are still working faultlessly.

•Key-operated power switch

Protection against unauthorized or accidental use.

•Action check

After power up the combined modules are in LASER OFF mode.

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