Operation Manual
Thorlabs Blueline™ Series
Thermoelectric Temperature Controller
TED200
2006
Version:2.23
Date: 21.06.2006
Copyright© 2006, Thorlabs GmbH, Germany
Contents page
1 General Information 1
1.1 At a Glance 1
1.1.1 General remarks 1
1.1.2 Protections for the TEC element 3
1.2 Safety 4
1.3 Ordering codes and Accessories 6
2 Getting Started 7
2.1 Unpacking 7
2.2 Preparation 7
2.3 Preparation 8
2.3.1 Operating elements on front panel 8
2.3.2 Operating elements on rear panel 9
2.4 Starting up 10
3 Operating the TED200 11
3.1 Connecting components 11
3.1.1 Connecting the TEC element 12
3.1.2 Control LED for TEC ON mode 13
3.1.3 Connecting a temperature sensor 13
3.2 Operating the temperature controller 17
3.3 Setting the TEC current limit "ILIM" 18
3.4 Adjusting the temperature control loop 19
3.5 Analog tuning of the temperature 21
3.6 Analog temperature control output 22
3.7 Over-temperature-protection of the TED200 22
4 Maintenance and Repair 23
4.1 Maintenance 23
4.2 Line Voltage Setting 24
4.3 Replacing the mains fuse 26
4.4 Internal Fuse Replacement 27
4.5 Calibrating the temperature sensor 28
4.6 Switching off the I-share of the temperature control loop 29
4.7 Troubleshooting 31
5 Appendix 33
5.1 Warranty 33
5.2 Certifications and compliances 34
5.3 Technical data 36
5.4 Thorlabs “End of Life” policy (WEEE) 38
5.4.1 Waste treatment on your own responsibility 38
5.4.2 Ecological background 39
5.5 List of acronyms 40
5.6 List of figures 41
5.7 Addresses 42
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 GmbH
This part of the instruction manual contains specific information on how to operate a
temperature module TED200. A general description is followed by explanations of
how to operate the unit manually.
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 At a Glance
Temperature controller TED200 / page 1
1 General Information
1.1 At a Glance
1.1.1 General remarks
The thermoelectric Temperature Controller TED200 by Thorlabs GmbH is an
extremely precise temperature controller for laser diodes and detectors.
The TED200 is excellently suited for:
• wavelength stabilization of laser diodes
• noise reduction of detectors
• wavelength tuning by regulating the temperature
• modulation of wavelength by tuning the temperature
The unit is easy to use due to the clearly arranged operating elements on the front
panel. The operating parameters are shown by an illuminated 4
1/
2-digit LCD display,
the measurement value shown is selected via keys.
The gain (P-share) the integral share and the differential share of the PID
temperature control loop can be set free and reproducible.
Different temperature sensors can be used with the temperature controller TED200
(thermistor, or temperature IC sensors: AD 590, AD592, LM135, LM 335). With a
thermistor the temperature display is shown as resistance value in kΩ, if the TED200
is operated with a temperature sensor IC the temperature is shown in °C.
The output for the TEC current can be switched on or off via key from the front panel.
The temperature sensor and the TEC element are connected by a 9-pin D-sub plug
at the rear of the unit.
At the output jack a control signal is available to drive an external LED to indicate
TEC ON mode when the TEC current loop is activated.
1.1 At a Glance
Temperature controller TED200 / page 2
The set value of the temperature can be changed with a knob at the front panel or via
an analog input at the rear of the unit.
An analog voltage proportional to the actual value of the temperature is available at
the rear of the unit for monitoring purposes.
The unit has been designed for safe operation with environmental temperatures of
more than 40 °C provided that a free air circulation through the ventilation slots at the
rear and at both sides of the unit is maintained.
In case of overheating caused by too high environmental temperatures or closed
ventilation slots the unit automatically switches the output off to avoid damages.
The LED "OTP" (over-temperature-protection) indicates the over-temperature.
After temperature drop of about 10 °C the LED "OTP" extinguishes and the output
current can be switched on again by pressing the key "ON".
If an error occurs (OTP or OPEN) the corresponding LED lights up and a beeper
gives a short warning signal.
The installed mains filter and the careful shielding of the transformer provide a low
ripple at the output.
If laser diode mounts of the LDH series and the corresponding cables by Thorlabs
GmbH are used damages caused by wrong connections are impossible.
1.1 At a Glance
Temperature controller TED200 / page 3
1.1.2 Protections for the TEC element
To protect the connected TEC element the temperature control system TED200
includes the following protective circuits:
• Limit of the TEC current in all operating modes
Protection against thermal destruction.
• Protection of the sensor
Protection against use of incorrect temperature sensors / protection against line
interruption of the temperature sensor.
• Contact protection of the TEC element (open circuit)
Protection against cable damage, bad contact or TEC element with too high
resistance.
• Control LED for TEC current on
Protection against accidental turning off the cooling.
• Over-temperature protection
Protection against thermal failure of the module.
• 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.
1.2 Safety
Temperature controller TED200 / page 4
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 TED200 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 the line voltage setting marked on the rear panel
agrees with your local supply and that the corresponding fuses are
inserted. If not, please have a service technician change the voltage
(see section 4.2).
Changing of the mains fuse can be done by the customer (see
section 4.3).
The unit must only be operated with duly shielded connection cables.
Only with written consent from Thorlabs GmbH may changes to
single components be carried out or components not supplied by
Thorlabs GmbH 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
1.2 Safety
Temperature controller TED200 / page 5
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 TED200 must not be operated in explo-
sion endangered environments!
1.3 Ordering codes and Accessories
Temperature controller TED200 / page 6
1.3 Ordering codes and Accessories
Ordering-code Short description
TED200 thermoelectric Temperature Controller, TEC current 0 ... ± 2 A,
working with thermistors and temperature IC sensors (AD 590, AD
592, LM135 and LM 335) as temperature sensor, illuminated 4½-
digit LCD-display
Shielded cables:
CAB420 cable to connect the Temperature Controller to a Thorlabs GmbH
Laser Diode Mount.
2.1 Unpacking
Temperature controller TED200 / page 7
2 Getting Started
2.1 Unpacking
Inspect the shipping container for damage.
If the shipping container seems to be damaged, keep it until you have inspected the
contents and you have inspected the TED200 mechanically and electrically.
Verify that you have received the following items:
1. 1 TED200
2. 1 power cord, connector according to ordering country
3. 1 operation manual
4. 1 Connection cable CAB 420
2.2 Preparation
Prior to starting operation with a laser diode controller TED200, check if the line
voltage specified on the letter plate agrees with your local supply and if the
appropriate fuse is inserted. (To change the line voltage see 4.2 on page 24)
Connect the unit to the line with the provided mains cable. Turn the unit on by means
of the line switch (L10).
Via the connector jack of the chassis ground (R4) the external optical build-up can be
connected to ground potential, if required. The ground pin of the laser diode is
internally connected to chassis ground.
2.3 Preparation
Temperature controller TED200 / page 8
2.3 Preparation
2.3.1 Operating elements on front panel
Figure 1 Operating elements on front panel
1 LED for an AD 590, AD 592, LM135 or LM335 sensor
2 LED for a thermistor sensor
3 4½-digit LCD display
4 Temperature display in °C
5 Resistance display in kΩ
6 Current display in A
7 LED for TEC element not or wrong connected"
8 LED "over-temperature-protection"
9 LED "TEC output switched on"
10 On/off switch for temperature control loop
11 Setting the set temperature "TSET"
12 Mains power control switch (ON / OFF)
13 Setting the current limit "ILIM" for the TEC element
14 LED to display the actual temperature "TACT´"
15 LED to display the TEC current "ITEC"
16 LED to display the set temperature "TSET"
17 LED to display the current limit "ILIM"
18 Selecting the measurement value for display (toggle switch down)
19 Selecting the measurement value for display (toggle switch up)
20 Setting the gain of the control loop (P-share)
21 Setting the I-share of the control loop
22 Setting the D-share of the control loop
I
12
13
14 15
1617 18 19 20 21 22
O
1
234567891011
2.3 Preparation
Temperature controller TED200 / page 9
2.3.2 Operating elements on rear panel
Figure 2 Operating elements on rear panel
R1 Analog control input "TUNE IN"
R2 Analog control output "CTL OUT"
R3 Fan
R4 Chassis ground
R5 9-pin D-sub jack for the TEC element and the temperature sensor
R6 Selecting the temperature sensor and the thermistor resistance range
R7 Serial number of the unit
R8 Letterplate for line voltage
R9 Mains socket and fuse holder
2.4 Starting up
Temperature controller TED200 / page 10
2.4 Starting up
Prior to starting operation with the thermoelectric Temperature Controller TED200,
check if the line voltage specified on the letter plate agrees with your local supply and
if the appropriate fuse is inserted. If not see chapter 4.2 to set the appropriate line
voltage. Connect the unit to the line with the provided mains cable.
Turn on the unit using the mains power control switch at the front panel.
The LC-display (3, Figure 1) must get visible and a LED must light to indicate the
selected measurement value (14 to 17).
With the keys (18) and (19) you can select the desired measurement value at any
time.
Independent of the switch position (R6) the setting and measurement range with
thermistors is between 0 and 19.99 kΩ or 0 and 199.9 kΩ respectively. When the AD
590, AD 592, LM135 or LM335 is used as a temperature sensor the measurement
range is between -45 °C and + 145 °C. The actual control range depends on the
sensor ratings and the individual thermal setup.
The unit TED200 is immediately ready to use after turning on. The rated accuracy is
however reached after a warming-up time of approx. 10 minutes.
3.1 Connecting components
Temperature controller TED200 / page 11
3 Operating the TED200
3.1 Connecting components
Connecting TEC element and temperature sensor
If Laser Diode Heads (LDH) by Thorlabs GmbH are used, the output "TE OUTPUT"
(R5) of the Temperature Controller TED200 must be connected to the 9-pin plug
"TEC DRIVER" of the LDH with a shielded cable CAB420.
With other equipment connect the TEC element and the temperature sensor
according to Figure 3.
Figure 3 Output pinning of the 9-pole D-SUB jack (male)
Pin Connection
TEC element, status indication:
4 TEC (+)
5 TEC (-), status-LED (-)
1 Status-LED (+) (for TEC ON/OFF indication)
Temperature sensor:
2 Thermistor (-)
3 Thermistor (+), ground
7 Transducer AD 590/592 (-), LM 135/335 (+)
9 Transducer AD 590/592 (+), LM135/335 (+)
6 N.C.
8 AGND LM 135/335
1-2-3-4-
5
6-7-8-9
3.1 Connecting components
Temperature controller TED200 / page 12
3.1.1 Connecting the TEC element
Connect the thermoelectric cooler between pin 4 (TEC anode) and pin 5 (TEC
cathode) of the 9-pin D-sub plug (R5, see Figure 2).
Attention
An reverse poled TEC element may lead to thermal runaway and
destruction of the connected components.
Check the TEC polarity as follows:
Turn on the Temperature Controller TED200
Connect the temperature sensor to the plug "TE OUTPUT" (R5)
(refer to 3.1.3, "Connecting a temperature sensor" on page 13).
Select a suitable current limit "I
LIM" for the TEC element
(refer to 3.3, Setting the TEC current limit "ILIM" on page 18).
Switch the LCD display to the measurement range "TSET" and set the desired set
temperature with the tuning knob.
By pressing the key "ON" switch on the TED200 output current. The LED "ON" (9,
see Figure 1) lights up.
Switch the LCD display to the measurement range "T
ACT".
If the TEC module is connected with right polarity, the difference between the set
temperature "T
SET" and the actual temperature "TACT" will decrease. If the control
loop parameters are set well (refer to chapter 3.4), the actual temperature must be in
accordance with the set temperature in a short time.
If the TEC module is connected with wrong polarity, the difference between set
temperature and actual temperature will increase continuously. Then switch off the
TEC current by pressing key "ON" (9) and change the TEC module wiring at the D-
sub plug (R5).
3.1 Connecting components
Temperature controller TED200 / page 13
3.1.2 Control LED for TEC ON mode
If a LED is connected between pin 1 and pin 5 as shown in Figure 4 this LED lights
up when the TEC current output is switched on (TEC ON mode).
Figure 4 TEC ON monitoring
3.1.3 Connecting a temperature sensor
The Temperature Controller TED200 can be used with a standard thermistor, with an
AD 590, AD 592, LM 135 or an LM 335 as temperature sensor. The temperature
sensor is selected with switch (R6) at the rear of the unit (see Figure 2).
The LED's (1) or (2) resp. indicate the selected sensor.
If no temperature sensor is connected or if the temperature sensor does not
correspond to the sensor type selected with switch (R6) the LCD display (3) indicates
overflow when "TACT" measurement value is shown and the LED "OPEN" (7) lights
up in TEC OFF mode.
The temperature sensor is connected to the 9-pin D-sub plug "TE OUTPUT" (R5) at
the rear of the TED200 depending on the sensor type used.
NOTE
Additionally to the AD 590 or AD592 temperature sensor the TED200 also
works with an LM 335 sensor. If an LM 335 is used as temperature sensor
also select "AD 590" with the switch (R6). Thus also the LED "AD 590" (1)
lights up. The LM 335 sensor must be connected according to
Figure 7.
3.1 Connecting components
Temperature controller TED200 / page 14
3.1.3.1 Connecting a thermistor
The thermistor must be connected between pin 2 and pin 3 of the 9-pin D-sub plug
(R5, Figure 2). The polarity is unimportant if the thermistor is floating. If one pin of the
thermistor is grounded (for example in a laser module), this pin has to be connected
to pin 3.
If the Temperature Controller TED200 is operated with a thermistor as temperature
sensor the thermistor resistance at set temperature "TSET" must be set in kΩ.
Figure 5 Connecting a thermistor
When the actual temperature "TACT" is chosen for display the thermistor resistance is
shown. The switch (R6, Figure 2) selects the resistance range of the thermistor. In
position "L" (Low) the maximum thermistor range is 20 kΩ and the measurement
current 100 µA. In position "H" (High) the maximum thermistor resistance is 200 kΩ
and the measurement current 10 µA.
The dependency of resistance on temperature and vice versa of an NTC-thermistor
is described by the formula:
val
val
TT
B
B
R
R
T
TB
RTeRTR
val
+
=⇔∗=
−
)ln(*
*
)()(
0
0
0
)
11
(
0
0
(temperatures in Kelvin)
with: R0: Thermistor nominal resistance at temperature T
0
T
0
: Nominal temperature (typ. 298.15 K = 25°C)
B
val
: Energy constant
2
3
3.1 Connecting components
Temperature controller TED200 / page 15
For R0 and B
val
refer to the data sheet of the thermistor.
Evaluate the thermistor resistance for the desired set temperature.
Select with the key (18, Figure 1) or (19) the display value "TSET" to show the set
value and set the evaluated resistance value with the tuning knob (11).
If the thermistor characteristic R(T) is given in the data sheet the desired resistance
can be read directly.
3.1.3.2 Temperature sensor AD 590 or AD 592
If the temperature/current transducer AD 590 or AD 592 is used as temperature
sensor it is connected between pin 7 (-) and pin 9 (+) of the 9-pin D-sub plug "TE
OUTPUT" (R5, Figure 2) at the rear of the unit.
The accuracy of the displayed temperature depends on the tolerance of the
transducer used. If required the temperature display can be additionally calibrated for
the transducer used.
For calibration of the temperature sensor please refer to chapter 4.5.
Figure 6 Connecting a temperature sensor AD 590 or AD 592
AD 590
-
+
7
9
3.1 Connecting components
Temperature controller TED200 / page 16
3.1.3.3 Temperature sensor LM 135 or LM335
If the temperature/voltage transducer LM135 or LM335 is used as temperature
sensor it is connected to pin 9 (+), pin 7 (also +) and pin 8 (AGND) of the 9-pin D-sub
plug "TE OUTPUT" (R5, Figure 2) at the rear of the unit.
Figure 7 Connecting a temperature sensor LM 135 or LM 335
The accuracy of the displayed temperature depends on the tolerance of the
transducer used. If required the temperature display can be calibrated for the
transducer used.
For calibration of the temperature sensor please refer to chapter 4.5.
LM 335
-
+
9
7
8
3.2 Operating the temperature controller
Temperature controller TED200 / page 17
3.2 Operating the temperature controller
Switch on the Temperature Controller TED200
Use cable CAB 420 to connect the input "TEC DRIVER" of the Laser Diode Head to
plug "TE OUTPUT" (R5, Figure 2) at the rear of the Temperature Controller TED200.
If other laser diode sockets are used, the output plug "TE OUTPUT" (R5) has to be
connected according to the pin assignment in Figure 3 and the description
"Connecting a temperature sensor"
(refer to chapter 3.1.3).
Select a suitable current limit "ILIM" for the TEC element
(refer to chapter 3.3).
Select the used temperature sensor with the switch (R6).
NOTE:
Only if a temperature sensor is connected to plug "TE OUTPUT" (R5) and
the sensor type is selected correctly with switch (R6), TEC ON mode can
be selected by pressing key "ON" (R1).
The LED "OPEN" (7, Figure 1) lights up if the connected temperature sensor does
not correspond to the sensor type selected with the switch (R6). In this case check
the connection and the type of the temperature sensor.
Set switch (18) or (19) into position "T
SET" to display the selected set temperature.
Set the desired temperature "TSET" with the tuning knob (11).
If a thermistor is used as temperature sensor the resistance has to be set in kΩ. If an
AD 590, AD 592, LM135 or LM 335 is used as temperature sensor the set
temperature is entered in °C.
3.3 Setting the TEC current limit "ILIM"
Temperature controller TED200 / page 18
Switch on the TEC current output of the Temperature Controller TED200 by pressing
key "ON" (10). With the output switched on the LED "ON" (9) lights up.
NOTE:
When the LED "OPEN" (7) lights up the controller cannot be switched on.
In this case check the connection of the temperature sensor and the
selected sensor type.
During operation you can chose at any time the display value "TSET", "TACT", "ILIM" or
"ITEC" by selecting it with the switch (18) or (19).
3.3 Setting the TEC current limit "ILIM"
The Temperature Controller TED200 delivers a maximum TEC current of 2 A. The
TEC current "ILIM" can be set with the potentiometer "LIM I" and thus adapted to the
used TEC element.
With one of the keys (18 or 19) switch to the display parameter "I
LIM".
Use a screwdriver to set the desired TEC current limit "ILIM" with the 20-turn
potentiometer "LIM I" (11) for the TEC element.
3.4 Adjusting the temperature control loop
Temperature controller TED200 / page 19
3.4 Adjusting the temperature control loop
By setting the control loop parameters of the PID control loop the temperature
controller TED200 can be adapted optimal to the most different thermal loads.
The gain (P-share) for the temperature control can be adjusted with potentiometer
"P" (20, Figure 1). Turning it clockwise will reduce the settling time while turning
counterclockwise increases the stability of the temperature control loop and thus
reduces overshoots.
The I-share of the temperature control loop can be adjusted with potentiometer "I"
(21).
The D-share of the temperature control loop can be adjusted with potentiometer "D"
(22).
Execution:
Switch with key (18) or (19) into the position "TACT" to display the actual temperature.
Turn the three potentiometers "P" (20), "I" (21) and "D" (22) completely counter-
clockwise.
NOTE:
The settling behavior may be additionally observed at the "CTL OUT" (R2,
Figure 2) output port at the rear of the unit by means of an oscilloscope or
chart recorder.
The I-share can be completely switched off to make the setting of the gain
(P-share) and the D-share easier. For this purpose the jumper "JP1" must
be set internally on the basic PCB (refer to chapter 4.6).
Set the temperature "TSET" to about room temperature and switch on the TEC current
output with the switch " ON" (10).
3.4 Adjusting the temperature control loop
Temperature controller TED200 / page 20
P-Share
Repeatedly increase and decrease the set temperature of about 1 °C or 2 °C around
room temperature with knob (11, see Figure 1) or by setting a suited signal to the
analog control input "TUNE IN" (R1, see Figure 2) at the rear of the unit and watch
the settling behavior of the actual temperature "TACT".
Increase the P-share gradually. Higher values will increase the settling speed, to high
values make the system oscillate.
The P-share has been set correctly when the actual temperature remains stable near
the set temperature after only 2-3 overshoots.
D-share
Change repeatedly between set temperatures of room temperature±1...2°C while
observing again the settling behavior of the actual temperature.
Increase the D-share gradually. Higher values will decrease the amplitude of the
overshoots.
The D-share is set correctly when the actual temperature remains stable near the set
temperature after a minimum of overshoots.
I-share
Turn on the I-share again by removing the internal jumper . "JP1" (please refer to
section 4.6, Switching off the I-share of the temperature control loop, on page 29).
Again change repeatedly between set temperatures of room temperature ±1...2°C.
Increase the I-share gradually. Higher values will accelerate the settling to the set
temperature.
The I-share is set correctly when the actual temperature reaches the set
temperature in shortest time without overshoots.
3.5 Analog tuning of the temperature
Temperature controller TED200 / page 21
3.5 Analog tuning of the temperature
The set temperature "TSET" can be tuned by an analog voltage via an independent
grounded input "TUNE IN" (R1, Figure 2) at the rear panel of the Temperature
Controller TED200. The temperature set value is proportional to the sum of the signal
at the input "TUNE IN" (R1) and the value set with the adjust knob (11, Figure 1).
The tuning coefficient for the analog control input "TUNE IN" (R1) is:
range voltage operation mode
0 ... 20 kΩ 0 ... 10 V thermistor, switch (11) in position "L"
0 ... 200 kΩ 0 ... 10 V thermistor, switch (11) in position "H"
-50 °C ... +100 °C - 2.5 V ... + 5 V AD 590/592, LM 135/335
Execution:
Switch on the Temperature Controller TED200 and connect the temperature sensor
and the TEC element to plug "TE OUTPUT" (R5).
Select an adequate TEC current limit "ILIM". Select the sensor type with switch (R6)
and set the desired set temperature "TSET" with the tuning knob.
Switch on the TEC current output of the Temperature Controller TED200 by pressing
key "ON" (10). TEC ON mode is indicated by LED "ON" next to the key "ON" (10).
Apply an analog voltage to jack "TUNE IN" (R1) at the rear panel of the Temperature
Controller TED200.
NOTE:
Only slow variations of the temperature set value (<< 1 Hz) are possible
via the analog control input "TUNE IN" (R1).
At the analog temperature control output "CTL OUT" (R2) the actual temperature
"T
ACT" can be supervised.
3.6 Analog temperature control output
Temperature controller TED200 / page 22
3.6 Analog temperature control output
An analog output "CTL OUT" (R2, see Figure 2) is provided at the rear of the
Temperature Controller TED200. Here a voltage proportional to the actual
temperature "TACT" is applied for monitoring purposes e.g. to supervise the settling
behavior of the temperature control loop.
voltage range operation mode
0 ... 10 V 0 ... 20 kΩ thermistor, switch (T11) in position "L"
0 ... 10 V 0 ... 200 kΩ thermistor, switch (T11) in position "H"
-10 V ... +10 V -200 °C ... +200 °C AD 590/592, LM 135/335
E.g. a strip chart recorder may be connected to this output to see if certain
temperature limits of the device under test are exceeded.
The output "CTL OUT" (R2) is grounded. Thus standard measurement equipment
can be connected directly. Devices connected to these outputs should have an
internal resistance of ≥ 10 kΩ.
3.7 Over-temperature-protection of the TED200
The temperature controller TED200 has an automatic over-temperature-protection. If
overheated by operating errors or high ambient temperatures the current output of
the module is switched off automatically. LED "OTP" (8, see Figure 1), over-
temperature-protection, lights up and the beeper gives a short warning signal. The
current through the TEC element is switched off (TEC OFF mode). Pressing key
"ON" (10) has no effect in this case.
When the temperature within the unit has dropped for about 10 °C the LED "OTP" (8)
extinguishes and the TEC current output can be switched on again.
4.1 Maintenance
Temperature controller TED200 / page 23
4 Maintenance and Repair
4.1 Maintenance
Protect the TED200 from adverse weather conditions. The TED200 is not water
resistant.
Do not store or leave the TED200 where the LCD display will be exposed to direct
sunlight for long periods of time.
Attention
To avoid damage to the TED200, do not expose it to spray, liquids or
solvents!
The unit does not need a regular maintenance.
The unit and the LCD display can be cleaned with a cloth dampened with water.
You can use a mild 75% Isopropyl Alcohol solution for more efficient cleaning.
The TED200 does not contain any modules that can be repaired by users.
To guarantee the specifications given in chapter 5.3 over a long period it is
recommended to have the unit calibrated by Thorlabs every two years.
4.2 Line Voltage Setting
Temperature controller TED200 / page 24
4.2 Line Voltage Setting
The temperature controller TED200 operates at fixed line voltages of 90 V … 115 V,
104 V … 132 V or 207 V … 264 V. Prior to starting operation check that the line
voltage specified on the letter plate agrees with your local supply. A qualified service
person is required to change the operating Line voltage.
Attention
This procedure should only be done by qualified service personnel!
Dangerous voltages exist within the device. As shipped from the
factory, all parts carrying line voltage are covered to reduce the
likelihood of contact. However Thorlabs GmbH does not guarantee
this protection to be sufficient under all circumstances. Therefore be
careful not to touch any Mains Voltage connected part within the
unit!
Disconnect Power. To avoid electrical shock, first switch off the TED200 power,
and then disconnect the power cord from the mains power.
With the TED200 turned over, remove the two screws that secure the cover to the
chassis. One of the screws has a paint piercing washer.
Remove the unit by sliding it out of the cover. With the unit set upright, you will find
the range switch near the front of the unit, next to the transformer (see Figure 8)
Using a flat-blade screwdriver, turn the switch to the desired range by aligning the
triangle with the appropriate voltage (100V, 115V, or 230V). Ensure that the switch
has clicked into one of the three positions and is not between positions.
On the back of the instrument, remove the indicator screw from the old location and
install it in the location corresponding to the new range setting.
4.2 Line Voltage Setting
Temperature controller TED200 / page 25
Attention
If you have changed to or from 230 V, change the mains fuse to the
value shown in section 4.3 of this manual.!
100 V 630 mA, Slow, 250V T0.63A250 V
115 V 500 mA, Slow, 250V T0.5A250 V
230 V 250 mA, Slow, 250V T0.25A250 V
All fuses are to be IEC 60127-2/III.
Figure 8 Setting the line voltage
Reattach the cover, ensuring that the paint piercing screw is in the original location.
Voltage Selector
2 Screws to open
T
E
D
2
0
0
R
4
5
2
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5
0
0
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0
4
5
4
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S
i
1
S
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2
Si3
Si4
Fuse Type IEC60127-2/V (5 x 20 mm)
TYPE: TED 20 0
S/N:
Tektronix Mu nich GmbH
Made in Germany
Opt io n:
4.3 Replacing the mains fuse
Temperature controller TED200 / page 26
4.3 Replacing the mains fuse
If the mains fuse has opened due to line distortions, incorrect line voltage or other
causes, it can be easily replaced from the rear without opening the unit.
Attention
To avoid risk of fire only the appropriate fuse for the corresponding
line voltage must be used.
1. Turn off the TED200 and disconnect the mains cable.
2. Open the fuse drawer in the mains connector (see Figure 9) with a screw-
driver.
3. Replace the defective fuse (one spare fuse is included in the fuse holder) and
close the drawer.
100 V 630 mA, Slow, 250V T0.63A250 V
115 V 500 mA, Slow, 250V T0.5A250 V
230 V 250 mA, Slow, 250V T0.25A250 V
All fuses are to be IEC 60127-2/III
Figure 9 Changing the mains fuse
4.4 Internal Fuse Replacement
Temperature controller TED200 / page 27
4.4 Internal Fuse Replacement
Attention
Internal fuses must be changed only by qualified service personnel.
Open the unit as described in section 4.2.
You will find an adhesive label on the transformer depicting type and location of the
internal fuses.
Figure 10 Label ‘Internal fuses’
Use only fuses of the type ‘Littelfuse NANO2® Slo-Blo Fuse 452/454 Series’.
Replace the defective fuse and close the unit again (see section 4.2).
TED 200
R452.500 or 0454.500 (T 500 m A)
Fu s e Ty p e :
Litt elfuse NANO ™Slo-Blo 452/454
2
R452.500 or 0454.500 (T 500 m A)
(T 2 A) R452 002. or 0454 002.
(T 2A) R452 002. or 0454 002.
Si1
Si2
S
i
3
S
i
4
G
m
b
H
4.5 Calibrating the temperature sensor
Temperature controller TED200 / page 28
4.5 Calibrating the temperature sensor
Attention
This procedure should only be done by qualified service personnel!
Hazardous voltages exist within the device. As shipped from the
factory, all parts carrying line voltage are covered to reduce the
likelihood of contact. Use only isolated tools and be careful not to
touch any Mains.
When using an AD 590, AD 592 or an LM 335 IC sensor the accuracy of the actual
temperature depends on the tolerance of the temperature sensor used. For higher
accuracy the temperature display additionally can be calibrated for the temperature
sensor used.
If the Temperature Controller TED200 was purchased together with a temperature
controlled Laser Diode Head by Thorlabs GmbH the temperature display is (on
request) already calibrated for the temperature sensor of the Laser Diode Head.
Execution:
Disconnect Power. To avoid electrical shock, first switch off the TED200 power,
and then disconnect the power cord from the mains power.
With the TED200 turned over, remove the two screws that secure the cover to the
chassis. One of the screws has a paint piercing washer.
Remove the unit by sliding it out of the cover.
At the main PCB of the Temperature Controller TED200 there are the potentiometers
"P1" and "P2" (Figure 11). With potentiometer "P2" the zero of the temperature scale
can be set. With potentiometer "P1" the scaling factor of the temperature scale can
be set.
4.6 Switching off the I-share of the temperature control loop
Temperature controller TED200 / page 29
Figure 11 Component view of the PCB of the TED200
Connect the TED200 to the line by the mains cable and switch on the opened unit.
Use iced water to cool the temperature sensor to 0° C and calibrate the display of the
actual temperature "TACT" with potentiometer "P2" to 0 °C.
Use boiling water to heat the temperature sensor to about 100 °C, measure the water
temperature and adjust the display of the actual temperature "TACT" with
potentiometer "P1" to the measured water temperature.
Afterwards close the unit with the cover and fasten the cover again with the screws at
the bottom of the unit.
4.6 Switching off the I-share of the temperature control loop
To simplify the setting of the P- and D-share of the temperature control loop the I-
share can be switched off by setting a jumper on the main PCB of the TED200.
Especially in the case of high thermal loads the setting of the P- and D-share is thus
simplified.
4.6 Switching off the I-share of the temperature control loop
Temperature controller TED200 / page 30
Attention
This should only be done by qualified service personnel!
To switch off the I-share open the unit. Before removing the cover
the unit must be switched off and the line plug must be removed
from the line socket (R9, Figure 2).
Execution:
Attention
This procedure should only be done by qualified service personnel!
Hazardous voltages exist within the device. As shipped from the
factory, all parts carrying line voltage are covered to reduce the
likelihood of contact. Use only isolated tools and be careful not to
touch any Mains..
Switch off the unit, remove line plug from the mains and remove the screws of the
cover at the bottom of the unit then remove the cover (see Figure 8 in the 4.4
Internal Fuse Replacement, section ).
Close jumper "JP1" with a standard computer jumper at the printed circuit board of
the Temperature Controller TED200.
(refer to Figure 11 Component view of the PCB of the TED200” on page 29).
Put the cover back on the unit and fasten it again with the screws at the bottom.
Connect the unit to the mains supply and switch on the unit.
Then optimize your PD settings.
NOTE
Do not forget to remove the jumper afterwards and to adjust the I-share.
4.7 Troubleshooting
Temperature controller TED200 / page 31
4.7 Troubleshooting
In case that your TED200 system shows malfunction please check the following
items:
Module does not work at all (no display on the mainframe):
Unit connected properly to the mains?
Connect the TED200 to the power line take care of the right voltage setting
of your mainframe.
TED200 turned on?
Turn on your TED200 with the key mains-switch.
Control the fuse at the rear panel of the TED200 mainframe.
If the fuse has opened replace the fuse by the correct type
(refer to chapter 4.2, "Line Voltage Setting" on page 24 to select the appropri-
ate fuse)
The display works but you don’t get the desired operation temperature
Is the hardware current limit I
LIM
set to 0?
• Adjust the hardware limit I
LIM
by means of the potentiometer on the
TED200 front panel to an appropriate value.
Is the TEC connected properly to the D-SUB connector?
Check all cables.
Check the correct polarity
(see section 3.1.1 on page 12)
4.7 Troubleshooting
Temperature controller TED200 / page 32
Is the temperature sensor connected properly and are his parameters entered
correctly?
Check the corresponding connections and polarities of the temperature
sensor.
(refer to chapter 3.1.3, "Connecting a temperature sensor" on page 13)
Select the corresponding temperature sensor on the back panel with switch
R6, (Figure 2).
Enter the right set-values for T
SET
(thermistor)
Set temperature differs from actual temperature (of the laser)
Is the sensor calibrated properly?
Enter the right set-values for T
SET
(thermistor) or calibrate your system
anew.
(Refer to section 4.5, "Calibrating the temperature sensor" on page 28)
If you don’t find the error source by means of the trouble shooting list please first
connect the Thorlabs GmbH-Hotline (blueline@thorlabs.com) before sending the
TED200 system for checkup and repair to Thorlabs GmbH-Germany.
(Refer to 5.7, "Addresses" on page 42)
5.1 Warranty
Temperature controller TED200 / page 33
5 Appendix
5.1 Warranty
Thorlabs GmbH warrants material and production of the TED200 for a period of 24
months starting with the date of shipment. During this warranty period Thorlabs
GmbH will see to defaults by repair or by exchange if these are entitled to warranty.
For warranty repairs or service the unit must be sent back to Thorlabs GmbH
(Germany) or to a place determined by Thorlabs GmbH. The customer will carry the
shipping costs to Thorlabs GmbH, in case of warranty repairs Thorlabs GmbH will
carry the shipping costs back to the customer.
If no warranty repair is applicable the customer also has to carry the costs for back
shipment.
In case of shipment from outside EU duties, taxes etc. which should arise have to be
carried by the customer.
Thorlabs GmbH warrants the hard- and software determined by Thorlabs GmbH for
this unit to operate fault-free provided that they are handled according to our
requirements. However, Thorlabs GmbH does not warrant a fault free and
uninterrupted operation of the unit, of the soft- or firmware for special applications nor
this instruction manual to be error free. Thorlabs GmbH is not liable for consequential
damages.
Restriction of warranty
The warranty mentioned before does not cover errors and defects being the result of
improper treatment, software or interface not supplied by us, modification, misuse or
operation outside the defined ambient conditions stated by us or unauthorized
maintenance.
Further claims will not be consented to and will not be acknowledged. Thorlabs
GmbH does explicitly not warrant the usability or the economical use for certain
cases of application.
Thorlabs GmbH reserves the right to change this instruction manual or the technical
data of the described unit at any time.
5.2 Certifications and compliances
Temperature controller TED200 / page 34
5.2 Certifications and compliances
Certifications and compliances
Category Standards or description
EC
Declaration of
Conformity EMC
Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
Compliance was demonstrated to the following specifications as listed in the
Official Journal of the European Communities:
EN 61326 EMC requirements for Class A electrical
equipment for measurement, control and
laboratory use, including Class A Radiated and
Conducted Emissions
1,2,3
and Immunity.
1,2,4
IEC 61000-4-2 Electrostatic Discharge Immunity (Performance
criterion B)
IEC 61000-4-3 Radiated RF Electromagnetic Field Immunity
(Performance criterion B)
IEC 61000-4-4 Electrical Fast Transient / Burst Immunity
(Performance criterion B)
5
IEC 61000-4-5 Power Line Surge Immunity (Performance
criterion B)
IEC 61000-4-6 Conducted RF Immunity (Performance criterion
B)
IEC 61000-4-11 Voltage Dips and Interruptions Immunity
(Performance criterion B)
EN 61000-3-2 AC Power Line Harmonic Emissions
Complies with the Radiocommunications Act and demonstrated per EMC Emission
standard
1,2,3
:
AS/NZS 2064 Industrial, Scientific, and Medical
Equipment: 1992
Australia /
New Zealand
Declaration of
Conformity EMC
FCC EMC
Compliance
Emissions comply with the Class A Limits of FCC Code of Federal Regulations 47,
Part 15, Subpart B
1,2,3
.
1
Compliance demonstrated using high-quality shielded interface cables.
2
Compliance demonstrated with CAB420 cable installed at the TEC Output port with LDH-DIL Laser
Diode Mount attached at other end.
3
Emissions, which exceed the levels required by these standards, may occur when this equipment
is connected to a test object.
4
Minimum Immunity Test requirement.
5
TUNE IN port capped at IEC 61000-4-3 test..
5.2 Certifications and compliances
Temperature controller TED200 / page 35
Certifications and compliances
Category Standards or description
EC Declaration of
Conformity - Low
Voltage
Compliance was demonstrated to the following specification as listed in the
Official Journal of the European Communities:
Low Voltage Directive 73/23/EEC, amended by 93/68/EEC
EN 61010-1/A2:1995 Safety requirements for electrical
equipment for measurement control
and laboratory use.
UL3111-1 Standard for electrical measuring and
test equipment.
U.S. Nationally
Recognized Testing
Laboratory Listing
ANSI/ISA S82.01:1994 Safety standard for electrical and
electronic test, measuring,
controlling, and related equipment.
Canadian
Certification
CAN/CSA C22.2 No. 1010.1 Safety requirements for electrical
equipment for measurement, control,
and laboratory use.
Additional
Compliance
IEC61010-1/A2:1995 Safety requirements for electrical
equipment for measurement, control,
and laboratory use.
Equipment Type Test and measuring
Safety Class Class 1 (as defined in IEC 61010-1, Annex H) - grounded product
5.3 Technical data
Temperature controller TED200 / page 36
5.3 Technical data
(All technical data are valid at 23 ± 5°C and 45 ±15% humidity)
Temperature sensor:
Type of sensor Thermistor, AD590, AD592, LM135, LM335
Thermistor sensing current (TH Low/High) 100 µA / 10 µA
Control range (AD590, LM135) -45 °C ... +145 °C
Control range (AD592) -25 °C ... +105 °C
Control range (LM 335) -40 °C ... +100 °C
Control range (Thermistor Low/High) 10 Ω ... 19.99 kΩ / 100Ω ... 199.9 kΩ
Setting / measurement resolution (AD590, AD592, LM135, LM 335) 0.01 °C
Setting / measurement resolution (Thermistor Low/High) 1 Ω / 10 Ω
Accuracy (AD590, AD592, LM135, LM 335) ± 0.1 °C
Accuracy (Thermistor Low/High) ± 10 Ω / ± 100 Ω
Temperature stability 24 hours (AD590, AD592, LM135, LM 335) < 0.002 °C
Temperature stability 24 hours (Thermistor Low/High) 1) < 0.5 / 5 Ω
TEC output:
Control range of the TEC current - 2 A ... + 2 A
Measurement resolution TEC current 1 mA
Accuracy TEC current ± 20 mA
Max. output voltage > 6 V
Max. output power 12 W
Noise and ripple (typ.) < 1 mA
TEC current limit:
Setting range 0 ... ≥ 2 A
Measurement resolution 1 mA
Accuracy ± 40 mA
1)
Due to the nonlinear conversion from Ω to °C the stability in °C depends on the operating conditions
and the characteristics of the thermistor. E.g. for a typical thermistor at a set point of 10kΩ (25°C), a
0.5Ω stability translates into about 1mK temperature stability. At a set point of 5kΩ (38°C), the stability
is about 2mK.
5.3 Technical data
Temperature controller TED200 / page 37
Temperature control input:
Input resistance 10 kΩ
Control voltage -10 ... +10 V
Transmission coefficient (AD590, AD592, LM135, LM 335) 20 °C/V ± 5%
Transmission coefficient (Thermistor Low/High) 2 kΩ/V, 20 kΩ/V ± 5%
Temperature control output:
Load resistance value ≥ 10 kΩ
Output voltage (AD590, AD592, LM135, LM 335) -10 … +10 V
Output voltage (Thermistor Low/High) 0 … +10 V / 0 … +10 V
Voltage Coefficient (AD590, AD592, LM135, LM 335) 50 mV/°C ± 5%
Voltage Coefficient (Thermistor Low/High) 0.5 V/kΩ / 50 mV/kΩ ± 5%
Connectors:
Temperature sensor, TEC element, TEC ON signal 9-pin. D-sub jack fem.
Control input/control output 2 x BNC
Chassis ground 4 mm banana jack
General data:
Line voltage 100 V / 115 V / 230 V (-10%, +15 %) (fixed)
Line frequency 50 ... 60 Hz
Power consumption (max.): 60 VA
Supply mains overvoltage Overvoltage category II (Cat II)
Operating temperature1) 0 ... +40°C
Storage temperature -40°C ... +70°C
Relative Humidity Max. 80% up to 31 °C, decreasing to 50% at 40 °C
Pollution Degree (indoor use only) 2
Operation altitude < 3000 m
Warm-up time for maximum accuracy <10 min
Weight < 3.1 kg
Dimensions W x H x D without operating elements 146 x 66 x 290 mm³
Dimensions W x H x D with operating elements 146 x 70 x 316 mm³
1)
non condensing
5.4 Thorlabs “End of Life” policy (WEEE)
Temperature controller TED200 / page 38
5.4 Thorlabs “End of Life” policy (WEEE)
As required by the WEEE (Waste Electrical and Electronic Equipment Directive) of
the European Community and the corresponding national laws, Thorlabs offers all
end users in the EC the possibility to return “end of life” units without incurring
disposal charges.
This offer is valid for Thorlabs electrical and electronic equipment
• sold after August 13
th
2005
• marked correspondingly with the crossed out “wheelie bin” logo (see Figure
12)
• sold to a company or institute within the EC
• currently owned by a company or institute within the EC
• still complete, not disassembled and not contaminated
As the WEEE directive applies to self contained operational electrical and electronic
products, this “end of life” take back service does not refer to other Thorlabs
products, such as
• pure OEM products, that means assemblies to be built into a unit by the user
(e. g. OEM laser driver cards)
• components
• mechanics and optics
• left over parts of units disassembled by the user (PCB’s, housings etc.).
If you wish to return a Thorlabs unit for waste recovery, please contact Thorlabs or
your nearest dealer for further information.
5.4.1 Waste treatment on your own responsibility
If you do not return an “end of life” unit to Thorlabs, you must hand it to a company
specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public
waste disposal site.
5.4 Thorlabs “End of Life” policy (WEEE)
Temperature controller TED200 / page 39
5.4.2 Ecological background
It is well known that WEEE pollutes the environment by releasing toxic products
during decomposition. The aim of the European RoHS directive is to reduce the
content of toxic substances in electronic products in the future.
The intent of the WEEE directive is to enforce the recycling of WEEE. A controlled
recycling of end of live products will thereby avoid negative impacts on the
environment.
Figure 12 Crossed out “wheelie bin” symbol
5.5 List of acronyms
Temperature controller TED200 / page 40
5.5 List of acronyms
The following acronyms are used in this manual:
AC Alternating Current
ADC Analog to Digital Converter
DAC Digital to Analog Converter
D-Share Derivative share
DC Direct Current
DIN Deutsche Industrie Norm
DUT Device Under Test
IEEE Institute for Electrical and Electronic Engineering
I-Share Integral share
JP JumPer
LCD Liquid Crystal Display
LDC Laser Diode Controller
LED Light Emitting Diode
N.C. Not Connected
PD Photo Diode
PID Proportional, Integral, Differential (regulator)
P-Share Proportional share
TEC ThermoElectric Cooler (Peltier Element)
5.6 List of figures
Temperature controller TED200 / page 41
5.6 List of figures
Figure 1 Operating elements on front panel 8
Figure 2 Operating elements on rear panel 9
Figure 3 Output pinning of the 9-pole D-SUB jack (male) 11
Figure 4 TEC ON monitoring 13
Figure 5 Connecting a thermistor 14
Figure 6 Connecting a temperature sensor AD 590 or AD 592 15
Figure 7 Connecting a temperature sensor LM 135 or LM 335 16
Figure 8 Setting the line voltage 25
Figure 9 Changing the mains fuse 26
Figure 10 Label ‘Internal fuses’ 27
Figure 11 Component view of the PCB of the TED200 29
Figure 12 Crossed out “wheelie bin” symbol 39
5.7 Addresses
Temperature controller TED200 / page 42
5.7 Addresses
Our Company is represented by several distributors and sales offices throughout the
world.
Europe
Thorlabs GmbH
Gauss-Strasse 11
D-85757 Karlsfeld
Germany
Sales and Support
Phone: +49 (0) 81 31 / 5956-0
Fax: +49 (0) 81 31 / 5956-99
Email: europe@thorlabs.com
Web: www.thorlabs.com
USA
Thorlabs, Inc.
435 Route 206 North
Newton, NJ 07860
USA
Sales and Support
Phone: 1-973-579-7227
Fax: 1-973-300-3600
Email: sales@thorlabs.com
Email: techsupport@thorlabs.com
Web: www.thorlabs.com
5.7 Addresses
Temperature controller TED200 / page 43
Japan
Thorlabs, Inc.
6th Floor, Fujimizaka Building
5-17-1, Ohtsuka
Bunkyo-ku, Tokyo 112-0012
Japan
Sales and Support
Phone: +81-3-5977-8401
Fax: +81-3-5977-8402
Email: sales@thorlabs.jp
Web: www.thorlabs.jp
Please call our hotlines, send an Email to ask for your nearest distributor or just visit
our homepage
http://www.thorlabs.com
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