THORLABS TED350 Bedienungsanleitung

Operation Manual

Thorlabs Instrumentation

Temperature Controller

TED350(-IEEE)

2007

Version: 2.14

Date: 07.02.2007

Contents Page

1General description of the TED350 controller 1

1.1 Packing List 1

1.2 Safety 1

1.3 General functions 3

1.3.1 Protections for the TEC element 3

1.3.2 Description of operation 4

1.4 Technical data 5

1.5 Operating elements 8

1.5.1 Front panel 8

1.5.2 Back panel 9

1.6 Pre-settings 10

1.6.1 Setting the limit value of the TEC current 10

1.6.2 Setting the maximum allowed temperature 10

1.6.3 Setting the temperature window 10

1.7 Connecting components 11

1.7.1 Pin assignment of the output jack 11

1.7.2 Connecting a thermistor 12

1.7.3 Connecting a temperature sensor AD590 or AD592 13

1.7.4 Connecting a temperature sensor LM135 or LM335 13

1.7.5 Connecting an LM35 14

1.7.6 Connecting the Pt-100 (option) 15

1.7.7 Connecting a TEC element 15

1.7.8 Connecting the status indicator 17

1.7.9 Fine tuning of the temperature 18

2Operating the TED350 19

2.1 Manual operation 19

2.1.1 Selecting the sensor 19

2.1.2 Selecting the mode of operation 20

2.1.3 Selecting the displayed value 20

2.1.4 The output ANALOG OUT 21

2.1.5 Switching the output ON and OFF 21

2.1.6 Setting the PID shares 21

2.1.7 WIN OUT 21

2.1.8 Fix / Var selector 22

2.1.9 Wakeup setting DIP switch 22

2.2 Optimization of temperature control loops 24

2.2.1 Setup and function of temperature controllers 24

2.2.2 PID adjustment 26

3Communication with a control computer (TED350-IEEE) 28

3.1 IEEE488 interface (TED350-IEEE) 29

3.1.1 IEEE 488 Interface subsets 29

3.1.2 Setting up the interface 30

3.1.3 Connecting the PC 32

3.1.4 IEEE488 bus commands 33

3.2 Before Programming 35

3.2.1 Nomenclature 35

3.2.2 Program and response messages 35

3.2.3 Data format 36

3.3 Common commands and queries 37

3.3.1 Identification query 37

3.3.2 Reset 37

3.3.3 Self-test query 37

3.3.4 Set Operation-complete bit 37

3.3.5 Operation-complete query 38

3.3.6 Wait 38

3.3.7 Event-Status-Enable-Register (ESE) 38

3.3.8 Query Standard-Event-Status-Register (ESR) 38

3.3.9 Service-Request-Enable-Register (SRE) 39

3.3.10 Query Status-Byte-Register (STB) 39

3.4 System command group 40

3.4.1 Answer mode 40

3.4.2 Error-LED mode 40

3.4.3 Querying the error queue 41

3.4.4 Oversampling rate 41

3.5 Status command group 42

3.5.1 Query Device-Error-Condition-Register (DEC) 42

3.5.2 Query Device-Error-Event-Register (DEE) 42

3.5.3 Device-Error-Event-Enable-Register (EDE) 42

3.6 TED350 specific commands 43

3.6.1 Temperature sensor (SENS) 43

3.6.2 Operation mode (MODE) 43

3.6.3 Switching the TEC on and off (TEC) 44

3.6.4 Reading the TEC current hardware limit (LIMTP) 44

3.6.5 Reading the TEC temperature / resistance hardware limit (LIMTR)44

3.6.6 Temperature (only AD590 and LM35) (TEMP) 45

3.6.7 Resistance (only thermistor) (RESI) 46

3.6.8 TEC current (ITE) 47

3.6.9 Reading the temperature/resistance window (WIN) 48

3.6.10 Reading the TEC voltage (VTE) 48

3.7 Error messages of the TED350 49

3.7.1 General errors 49

3.7.2 TED350 operation error messages 51

3.8 Status reporting 53

3.8.1 Standard event status register (ESR) 55

3.8.2 Standard event status enable register (ESE) 55

3.8.3 Status byte register (STB) 56

3.8.4 Service request enable register (SRE) 56

3.8.5 Reading the STB by detecting SRQ 57

3.8.6 Reading the STB by *STB? command 57

3.8.7 Reading the STB by serial poll 57

3.8.8 Device error condition register (DEC) 58

3.8.9 Device error event register (DEE) 59

3.8.10 Device error event enable register (EDE) 59

3.9 Hints for setting up control programs 60

4Maintenance and Repair 63

4.1 General remarks 63

4.2 Cleaning 63

4.3 Selecting the line voltage 64

4.4 Exchanging the line fuse 64

4.5 Troubleshooting 66

5Service 68

5.1 Exchange of internal fuses 68

6Appendix 69

6.1 Warranty 69

6.2 Certifications and compliances 70

6.3 Thorlabs “End of Life” policy (WEEE) 71

6.3.1 Waste treatment on your own responsibility 72

6.3.2 Ecological background 72

6.4 List of acronyms 74

6.5 List of figures 75

6.6 List of tables 76

6.7 Addresses 76

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.

Thorlabs

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

the temperature controller TED350. A general description is followed by explanations

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

control via the optional 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.

1.1 Packing List

TED350 / page 1

1 General description of the TED350 controller

1.1 Packing List

1 TED350 (-IEEE)

1 power cord, connector according to ordering country

1 operation manual

1 CD-ROM with Drivers (TED350-IEEE only)

1 connection cable CAB420-15

1.2 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 TED350 system make sure that the

protective conductor of the 3 conductor mains power cord is cor-

rectly connected to the protective earth contact of the socket outlet!

Improper grounding can cause electric shock with damages to your

health or even death!

Also make sure that your line voltage agrees with the voltage indi-

cated by the switch setting on the back of the unit and that the right

fuse has been inserted!

The unit must only be operated with duly shielded connection cables.

1.2 Safety

TED350 / page 2

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.

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.

Attention

The temperature controller TED350 must not be operated in explo-

sion endangered environments!

1.3 General functions

TED350 / page 3

1.3 General functions

1.3.1 Protections for the TEC element

To protect the connected TEC elements and the laser diodes the TED350 has the

following protective circuits:

•Limit of the TEC current in all operating modes

Protection against thermal destruction.

•Protection of the DUT by sensor failure

Protection against use of an incorrect temperature sensor / protection against

interruption of the temperature sensor connection.

•Contact protection of the TEC element (open circuit)

Protection against cable damage, bad contact or TEC element with too high

resistance.

•Separate over-temperature protection

Protection against thermal failure.

•Temperature-window protection of the laser diode

Operation in a specified temperature range. (Only in combination with a Thorlabs

LDC340)

•Mains filter

Protection against line transients or interference’s.

•Line failure protection

After turning on or in case of power failure or line damage the temperature control

must explicitly be switched on anew since it cannot be taken for granted that all

components of the measurement set-up are still working faultlessly.

•Key-operated power control switch

Protection against unauthorized or accidental use.

1.3 General functions

TED350 / page 4

1.3.2 Description of operation

The TED350 has an input for IC temperature sensors of the AD590/592 or

LM35/135/335 series as well as an input for thermistors. When thermistors are used

you can choose between two resistance ranges (maximum resistance of the

thermistor 20kΩor 200kΩ).

The TEC 350 with Pt-100 option uses the Pt-100 element instead of the LM35.

A missing sensor or the selection of an incorrect type is detected.

All settings are done with the manual operating elements or by the IEEE488-interface

(option) and a PC. Only the TEC current limit value must be set manually. No manual

settings are required during automatic tests using a PC.

The set values for temperature, thermistor resistance and TEC current (const. current

mode) are set with the 10-turn main dial knob.

The limit values for the TEC current, the temperature and the temperature window

are set with screw-driver potentiometers.

The P-, I- and D-share of the analog control loop are set with „thumb-nail“-

potentiometers.

The TEC element is always operated relative to ground. This is of considerable

advantage regarding the safety for the TEC element and the stability of the TEC

current.

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