Laser Diode
Thermoelectric
Chiller
Specifications6
Cooling Capacity:1
Power Consumption:
Product Features
LDT-53520
LDT-53540
LDT-53522
LDT-53542
200W
850W
375W
1300W
200W
850W
375W
1300W
THERMAL PERFORMANCE
Thermal Performance
Control Temperature Range:3
Temperature Stability:1,2
Temperature Accuracy:1,5
SOFTWARE / FIRMWARE / COMMUNICATIONS
o
o
-5 C to 45 C
±0.05oC
±0.2oC
o
External Communication:
Virtual Front Panel:
o
-5 C to 45 C
±0.05oC
±0.2oC
Fluid Type:
Flow Rate:4
Reservoir Capacity:
Flow Measurement Range:
Flow Measurement Accuracy:
Fluid Interconnects:
Size (H x W x D):
Weight:
15.5” x 11” x 13”
47 lbs (LDM-53520; LDT-53522)
57 lbs (LDM-53540; LDT-53542)
Operating Temperature:
23oC + 5oC
Storage Temperature:
-25oC to + 65oC
Humidity:
<80% RH - non-condensing
Input Power (LDT-53520; LDT-53540): 110V; 50Hz; single phase
Input Power (LDT-53522; LDT-53542): 220V; 50Hz; single phase
Noise:
<66 dBA
Distilled water or distilled water mixed with
<30% isopropyl alcohol or propylene glycol
2 LPM @ 3m H20
300 - 400 ml
0.8 - 4.0 LPM
±20%
Colder Products Quick Disconnect
with Check Valve
REGULATORY
EXTERNAL TEMPERATURE SENSORS
External Sensor Selector:
External Sensor Connection:
Thermistor
Type:
Usable Range:
Current Source:
Calibration:
IC Sensors:
Type:
Calibration:
Source
AD590:
LM335
CE:
Certifications:
4 Pole Switch
15 Pin, D-Sub, Female
2-Wire NTC
450 - 350 k
10 / 100 A selectable source
Steinhart-Hart (2 constants)
Audible Alarm States:
Mute:
1. Temperature set point (internal) set to ambient and thermal load coupled
closely to the inlet and outlet ports.
2. Stability measured with a 200W thermal load (LDT-53540) and a
100W thermal load (LDT-53520) using an internal thermistor.
3. Operation below 5oC requires the addition of isopropyl alcohol (<30%) or
propylene glycol (<30%) to prevent freezing. Isopropyl alcohol is effective down
to 0oC. To operate below 0oC, propylene glycol must be used.
4. Flow characteristics at 60Hz. Output will be lower at 50Hz.
5. External temperature measurement accuracy for AD590 and LM335 sensors
will be +0.2°C and +1.0°C respectively.
6. All specifications are after a one hour warm-up / stabilization time.
AD590 / LM335
2 - Point
8V
0.6mA
Water Level Low; Flow Stops; Over Temp
Set Point; Output Off
Level Sense Low; Over Temperature Set Point
Mute button to disable audible alarm
Terminal Block
Normally Open
Normally Closed
No Flow; Over Temp Set Point; Output Off
REMOVABLE FRONT PANEL
Size:
Display:
Remote Connector:
Remote Cable:
Recirculating chillers with 200W
and 375W models
TEC based temperature control
from -5oC to 45oC with 0.05oC
stability
High power laser diode protection
with multiple safety interlocks
Variable speed fan for quiet
operation
USB 2.0 computer interface
Removable front panel for remote
control
Coolant flow measurement and
readout
The LDT-53500 Series of Laser Diode Thermoelectric Chillers
are designed specifically for high power laser diode temperature
control applications. Four models are available with 200W and
375W cooling capacity and provide high temperature stability for
precise high power laser diode temperature control. Heat and
cool modes of operation provide temperature control over a range
of -5oC to 45oC. Standard features include safety interlocks, a
removable front panel for remote control, external temperature
sensing, and flow measurement.
The LDT-53500 Series has been optimized for protecting
high power laser diodes. Laser diode protection is provided
through multiple interlocks which are compatible with ILX high
power laser diode drivers. The interlocks will change states in
the event of loss of flow, over temperature limit, and if the chiler
output is disabled.
For easy integration into automated test applications, the
LDT-53500 comes standard with a USB 2.0 computer interface
and front panel USB graphical user interface.
ORDERING INFORMATION
INTERLOCKS
Connector:
Interlock 1:
Interlock 2:
Interlock States (triggered):
LDT-53522 and LDT-53542 only
Low Voltage Directive 73/23/EEC;
EN61010-1:2001;
Electromagnetic Compatibility 89/336/EEC;
EN61326-2006
NOTES
ERRORS / ALARMS
Error States:
USB
C# application communicates thru USB
GENERAL
FLUID / FLOW SPECIFICATIONS
2U x 6” wide - rack mountable
4 digit 7 - segment LED
RJ45 - 8 Conductor
Ethernet
LDT-53520
LDT-53540
LDT-53522
LDT-53542
200W Laser Diode Thermoelectric Chiller
375W Laser Diode Thermoelectric Chiller
200W 220V Laser Diode Thermoelectric Chiller
375W 220V Laser Diode Thermoelectric Chiller
LDM-49840
LDM-49840T
High Power Butterfly Laser Diode Mount
High Power Butterfly Laser Diode Mount with
Case Temperature Control
High Power 2-Pin Module Laser Diode Mount
High Power 2-Pin Module Laser Diode Mount with
Case Temperature Control
CS Bar Package Mounting Fixture
High Power Laser Diode Driver
High Power Precision Current Source
LDM-49860
LDM-49860T
LDM-4415
LDX-36000 Series
LDX-32420
Cooling Power versus DT
450
400
53540
350
53520
300
Power (W)
LDT
53500
Series
250
200
150
100
50
0
0
5
10
15
20
25
DT (T-Ambient - T-Fluid)
30
35
For information call
P.O. Box 6310, Bozeman, MT 59771 • FAX: 406-586-9405
www.ilxlightwave.com
1-800-459-9459
International Inquiries: 406-556-2481
email: sales@ilxlightwave.com
Rev03.020310
Safe, affordable temperature control for
high power laser diodes
LDT
53500
Series
Laser Diode
Thermoelectric
Chiller
LDT
53500
Series
Laser Diode
Thermoelectric
Chiller
LDT
53500
Series
DESIGNED TO PROTECT HIGH POWER
LASER DIODES
The new LDT-53500 Laser Diode Thermoelectric Chiller
is specifically designed to provide protection to your
high power laser diodes. Protection features include
normally open and normally closed interlocks and
multiple fault monitoring circuits. When the interlocks
are used with ILX Lightwave high power laser diode
drivers, the laser is protected if a chiller fault occurs.
The interlocks will change states in the event of loss
of flow, over temperature limits, and if the chiller output
is disabled.
Front panel fault indicators clearly identify low reservoir,
over temperature limit, and loss of flow. An audible
alarm will notify the user of a low reservoir and over
temperature limit. The alarm can be silenced via a front
panel mute button.
PRECISION TEMPERATURE CONTROL
Heat and cool modes of operation provide stable
temperature control over a range of -5oC to 45oC. The
heat exchanger design and optimized PID control loop
constants provide temperature stability of +0.05oC at
the water outlet.
The chiller can monitor a thermistor or RTD sensor near
the laser diode and use that sensor as the feedback
control, allowing for more accurate temperature control
at the device under test. The user can enter in Steinhart
-Hart constants for calibrated thermistors.
COOLANT FLOW MEASUREMENT
A unique flow sensor developed at ILX monitors for loss
of coolant flow and also has the ability to measure flow.
This internal flow sensor eliminates the need for external
flow sensors that can reduce the overall coolant pressure
of the chiller. Measured flow can be displayed on both
the front panel and via the USB interface.
Laser Diode
Thermoelectric
Chiller
LDX-36000 High Power Laser Diode Driver
QUICK AND EASY SETUP
The intuitive front panel and use of quick water
disconnects enable the user to quickly set up either LDT53500 model. A bright 7-segment LED display is highly
visible from a distance in darkened labs. Connecting the
LDT-53500 chiller interlock to a laser diode driver such
as the LDX-36000 is accomplished by connecting wires
from the 53500 terminal blocks located on the rear of the
chiller to the driver’s interlock terminal blocks.
To ensure protection of expensive high power laser diodes from chiller faults,
the LDT-53500 interlock can be connected to an ILX high power laser diode driver interlock.
REMOTE CONTROL
QUIET OPERATION
The LDT-53500 Laser Diode Thermoelectric Chiller has
a unique removable front panel to allow users to place
the chiller in a convenient location with the front panel
near the application. The front panel communicates to
the LDT-53500 chassis via a standard RJ45 connector.
In addition to the removable front panel, the LDT-53500
comes standard with a USB interface for remote control
from a computer. A GUI interface is included with the
LDT-53500 support application CD or can be downloaded
from the ILX website.
To reduce noise in the lab, the pump and fans
were selected for performance and quiet operation.
Also to eliminate excessive noise, the fan speed is
automatically adjusted in response to the amount
of heat being removed by the chiller. This allows for
quieter operation when the chiller in not being operated
at the maximum thermal load.
SAFE AND RELIABLE OPERATION
The LDT-53500 is designed for long lifetimes by the use
of thermoelectric modules. Thermoelectric modules
eliminate additional moving parts that can lead to
expensive or costly repairs in compressor based chillers.
Thermoelectric module lifetimes have exceeded hundreds
of thousands of hours. The choice of the only moving
parts, the pump and the fan, were carefully selected to
provide long lifetime in continuous operation.
LDT-53500 Front Panel Display
PUT OUR EXPERTISE TO WORK
ILX Lightwave is a recognized world leader in Laser
Diode Instrumentation and Test Systems. Our products
are not only renowned for their reliability, quality, and
value; they’re backed by industry leading after-sales
support.
For more information about the LDT-53500 Laser Diode
Thermoelectric Chiller, and our complete family of
Laser Diode Instrumentation and Test Systems, call us
today or visit our website www.ilxlightwave.com.
LDT
53500
Series
Laser Diode
Thermoelectric
Chiller
LDT
53500
Series
DESIGNED TO PROTECT HIGH POWER
LASER DIODES
The new LDT-53500 Laser Diode Thermoelectric Chiller
is specifically designed to provide protection to your
high power laser diodes. Protection features include
normally open and normally closed interlocks and
multiple fault monitoring circuits. When the interlocks
are used with ILX Lightwave high power laser diode
drivers, the laser is protected if a chiller fault occurs.
The interlocks will change states in the event of loss
of flow, over temperature limits, and if the chiller output
is disabled.
Front panel fault indicators clearly identify low reservoir,
over temperature limit, and loss of flow. An audible
alarm will notify the user of a low reservoir and over
temperature limit. The alarm can be silenced via a front
panel mute button.
PRECISION TEMPERATURE CONTROL
Heat and cool modes of operation provide stable
temperature control over a range of -5oC to 45oC. The
heat exchanger design and optimized PID control loop
constants provide temperature stability of +0.05oC at
the water outlet.
The chiller can monitor a thermistor or RTD sensor near
the laser diode and use that sensor as the feedback
control, allowing for more accurate temperature control
at the device under test. The user can enter in Steinhart
-Hart constants for calibrated thermistors.
COOLANT FLOW MEASUREMENT
A unique flow sensor developed at ILX monitors for loss
of coolant flow and also has the ability to measure flow.
This internal flow sensor eliminates the need for external
flow sensors that can reduce the overall coolant pressure
of the chiller. Measured flow can be displayed on both
the front panel and via the USB interface.
Laser Diode
Thermoelectric
Chiller
LDX-36000 High Power Laser Diode Driver
QUICK AND EASY SETUP
The intuitive front panel and use of quick water
disconnects enable the user to quickly set up either LDT53500 model. A bright 7-segment LED display is highly
visible from a distance in darkened labs. Connecting the
LDT-53500 chiller interlock to a laser diode driver such
as the LDX-36000 is accomplished by connecting wires
from the 53500 terminal blocks located on the rear of the
chiller to the driver’s interlock terminal blocks.
To ensure protection of expensive high power laser diodes from chiller faults,
the LDT-53500 interlock can be connected to an ILX high power laser diode driver interlock.
REMOTE CONTROL
QUIET OPERATION
The LDT-53500 Laser Diode Thermoelectric Chiller has
a unique removable front panel to allow users to place
the chiller in a convenient location with the front panel
near the application. The front panel communicates to
the LDT-53500 chassis via a standard RJ45 connector.
In addition to the removable front panel, the LDT-53500
comes standard with a USB interface for remote control
from a computer. A GUI interface is included with the
LDT-53500 support application CD or can be downloaded
from the ILX website.
To reduce noise in the lab, the pump and fans
were selected for performance and quiet operation.
Also to eliminate excessive noise, the fan speed is
automatically adjusted in response to the amount
of heat being removed by the chiller. This allows for
quieter operation when the chiller in not being operated
at the maximum thermal load.
SAFE AND RELIABLE OPERATION
The LDT-53500 is designed for long lifetimes by the use
of thermoelectric modules. Thermoelectric modules
eliminate additional moving parts that can lead to
expensive or costly repairs in compressor based chillers.
Thermoelectric module lifetimes have exceeded hundreds
of thousands of hours. The choice of the only moving
parts, the pump and the fan, were carefully selected to
provide long lifetime in continuous operation.
LDT-53500 Front Panel Display
PUT OUR EXPERTISE TO WORK
ILX Lightwave is a recognized world leader in Laser
Diode Instrumentation and Test Systems. Our products
are not only renowned for their reliability, quality, and
value; they’re backed by industry leading after-sales
support.
For more information about the LDT-53500 Laser Diode
Thermoelectric Chiller, and our complete family of
Laser Diode Instrumentation and Test Systems, call us
today or visit our website www.ilxlightwave.com.
Laser Diode
Thermoelectric
Chiller
Specifications6
Cooling Capacity:1
Power Consumption:
Product Features
LDT-53520
LDT-53540
LDT-53522
LDT-53542
200W
850W
375W
1300W
200W
850W
375W
1300W
THERMAL PERFORMANCE
Thermal Performance
Control Temperature Range:3
Temperature Stability:1,2
Temperature Accuracy:1,5
SOFTWARE / FIRMWARE / COMMUNICATIONS
o
o
-5 C to 45 C
±0.05oC
±0.2oC
o
External Communication:
Virtual Front Panel:
o
-5 C to 45 C
±0.05oC
±0.2oC
Fluid Type:
Flow Rate:4
Reservoir Capacity:
Flow Measurement Range:
Flow Measurement Accuracy:
Fluid Interconnects:
Size (H x W x D):
Weight:
15.5” x 11” x 13”
47 lbs (LDM-53520; LDT-53522)
57 lbs (LDM-53540; LDT-53542)
Operating Temperature:
23oC + 5oC
Storage Temperature:
-25oC to + 65oC
Humidity:
<80% RH - non-condensing
Input Power (LDT-53520; LDT-53540): 110V; 60Hz; single phase
Input Power (LDT-53522; LDT-53542): 220V; 50Hz; single phase
Noise:
<66 dBA
Distilled water or distilled water mixed with
<30% isopropyl alcohol or propylene glycol
2 LPM @ 3m H20
300 - 400 ml
0.8 - 4.0 LPM
±20%
Colder Products Quick Disconnect
with Check Valve
REGULATORY
EXTERNAL TEMPERATURE SENSORS
External Sensor Selector:
External Sensor Connection:
Thermistor
Type:
Usable Range:
Current Source:
Calibration:
IC Sensors:
Type:
Calibration:
Source
AD590:
LM335
ERRORS / ALARMS
Error States:
Audible Alarm States:
Mute:
INTERLOCKS
Connector:
Interlock 1:
Interlock 2:
Interlock States (triggered):
CE:
Certifications:
4 Pole Switch
15 Pin, D-Sub, Female
2-Wire NTC
450W - 350 kW
10 / 100 mA selectable source
Steinhart-Hart (2 constants)
LDT-53522 and LDT-53542 only
Low Voltage Directive 73/23/EEC;
EN61010-1:2001;
Electromagnetic Compatibility 89/336/EEC;
EN61326-2006
NOTES
1. Temperature set point (internal) set to ambient and thermal load coupled
closely to the inlet and outlet ports.
2. Stability measured with a 200W thermal load (LDT-53540) and a
100W thermal load (LDT-53520) using an internal thermistor.
3. Operation below 5°C requires the addition of isopropyl alcohol (<30%)
or propylene glycol (<30%) to prevent freezing. Propylene glycol is effective
down to 0°C. To operate below 0°C, isopropyl alcohol must be used.4.
Flow characteristics at 60Hz. Output will be lower at 50Hz.
5. External temperature measurement accuracy for AD590 and LM335 sensors
will be +0.2°C and +1.0°C respectively.
6. All specifications are after a one hour warm-up / stabilization time.
AD590 / LM335
2 - Point
8V
0.6mA
Water Level Low; Flow Stops; Over Temp
Set Point; Output Off
Level Sense Low; Over Temperature Set Point
Mute button to disable audible alarm
Recirculating chillers with 200W
and 375W models
TEC based temperature control
from -5oC to 45oC with 0.05oC
stability
High power laser diode protection
with multiple safety interlocks
Variable speed fan for quiet
operation
USB 2.0 computer interface
Removable front panel for remote
control
Coolant flow measurement and
readout
The LDT-53500 Series of Laser Diode Thermoelectric Chillers
are designed specifically for high power laser diode temperature
control applications. Four models are available with 200W and
375W cooling capacity and provide high temperature stability for
precise high power laser diode temperature control. Heat and
cool modes of operation provide temperature control over a range
of -5oC to 45oC. Standard features include safety interlocks, a
removable front panel for remote control, external temperature
sensing, and flow measurement.
The LDT-53500 Series has been optimized for protecting
high power laser diodes. Laser diode protection is provided
through multiple interlocks which are compatible with ILX high
power laser diode drivers. The interlocks will change states in
the event of loss of flow, over temperature limit, and if the chiler
output is disabled.
For easy integration into automated test applications, the
LDT-53500 comes standard with a USB 2.0 computer interface
and front panel USB graphical user interface.
ORDERING INFORMATION
Terminal Block
Normally Open
Normally Closed
No Flow; Over Temp Set Point; Output Off
REMOVABLE FRONT PANEL
Size:
Display:
Remote Connector:
Remote Cable:
USB
C# application communicates thru USB
GENERAL
FLUID / FLOW SPECIFICATIONS
2U x 6” wide - rack mountable
4 digit 7 - segment LED
RJ45 - 8 Conductor
Ethernet
LDT-53520
LDT-53540
LDT-53522
LDT-53542
200W Laser Diode Thermoelectric Chiller
375W Laser Diode Thermoelectric Chiller
200W 220V Laser Diode Thermoelectric Chiller
375W 220V Laser Diode Thermoelectric Chiller
LDM-49840
LDM-49840T
High Power Butterfly Laser Diode Mount
High Power Butterfly Laser Diode Mount with
Case Temperature Control
High Power 2-Pin Module Laser Diode Mount
High Power 2-Pin Module Laser Diode Mount with
Case Temperature Control
CS Bar Package Mounting Fixture
High Power Laser Diode Driver
High Power Precision Current Source
LDM-49860
LDM-49860T
LDM-4415
LDX-36000 Series
LDX-32420
Cooling Power versus DT
450
400
53540
350
53520
300
Power (W)
LDT
53500
Series
250
200
150
100
50
0
0
5
10
15
20
25
DT (T-Ambient - T-Fluid)
30
35
For information call
P.O. Box 6310, Bozeman, MT 59771 • FAX: 406-586-9405
www.ilxlightwave.com
1-800-459-9459
International Inquiries: 406-556-2481
email: sales@ilxlightwave.com
Rev03.122010
Safe, affordable temperature control for
high power laser diodes
LDT
53500
Series
Laser Diode
Thermoelectric
Chiller