Thermo Electric Cooling Temperature Controller
TEC Controller / Peltier Driver ±10 A / ±19 V
OEM Precision TEC Controller
General Description
The TEC-1089 is a specialized TEC controller / power
supply able to precision-drive Peltier elements.
It features a true bipolar current source for cooling /
heating, two temperature monitoring inputs (1x high
precision, 1x auxiliary) and intelligent PID control with auto
tuning. The TEC-1089 is fully digitally controlled, its hardand firmware offer various communication and safety
options.
The included PC-Software allows configuration, control,
monitoring and live diagnosis of the TEC controller via
USB and RS485. All parameters are saved in non-volatile
memory.
For the most straightforward applications, only a power
supply, a Peltier element and one temperature sensor
need to be connected to the TEC-1089. After power-up the
unit will operate according to pre-configured values. (In
stand-alone mode no control interface is needed.)
The TEC-1089 can handle Pt100, Pt1000 or NTC
temperature probes. For highest precision and stability
applications a Pt1000 / 4-wire input configuration is
recommended. (Temperature acquisition circuitry of each
individual device is factory-calibrated to ensure optimal
accuracy and repeatability.)
An auxiliary temperature input allows the connection of an
NTC probe that is located on the heat sink of the Peltier
element. This additional data is used to compensate for
parasitic thermal conduction of Peltier elements.
The heating and cooling power is optimized by proprietary
thermal management routines based on power balance
models (for Peltier elements and resistive heaters).
TEC-1089s function either autonomously (stand-alone) or
remotely controlled. Two devices can be linked together to
operate in master/slave fashion and to deliver twice the
current.
Further functionality includes: smooth temperature
ramping, thermal stability indication, auto gain (NTC
probes) and residual current detection. The PC-Software
allows data logging and configuration import/export.
Some features of this OEM product are customizable:
temperature measurement ranges, digital lines for control,
diagnosis and communication protocols, etc.
The TEC-1089 is part of the TEC-Family of Meerstetter
TEC controllers, which are designed to operate alongside
devices of the LDD-Family of laser diode drivers. Both
families of drivers share the same system bus protocol,
design and technology.
Features
DC Input Voltage:
TEC Controller / Driver:
Output Current:
Output Voltage:
Temp. Sensor Types:
Temperature Precision:
Temperature Stability:
Thermal Power Control:
Configuration / Diagnosis:
Dimensions (L x W x H):
Efficiency:
Cooling:
12 – 24 V nominal
Autonomous Operation
0 to ±10 A, <1% Ripple
0 to ±19 V (max. VIN - 3.5 V)
Pt100, Pt1000, NTC
<0.01 °C
<0.01 °C
PID, Performance-optimized
via USB / RS485 (Software)
75 mm x 60 mm x 18 mm
>90% (@ >50% Load)
over Base Plate
Advanced Operation
Operation Modes:
- Stand-Alone
- Remotely-Controlled
- Script-Controlled
Driver Modes:
- Power Supply
- Temperature Control
- Heat Only / Cool Only
- Master/Slave (2 paired
TEC-1089 devices)
Control Interfaces:
Aux. Temp. Sensor Type:
w/o Live Control Interface
USB; RS485; RS422; I/O
Lookup Table Read-Out
Current / Voltage Settings
Temperature / PID Settings
only Pos. or Neg. Currents
One Temp. Controller for
Two Current Drivers
(up to ±20 A / ±19 V)
Isolated USB 2.0,
2x RS485 / RS422
4x Digital I/O (3.3 V / 5 V)
NTC (on Heat Sink Peltier)
Applications
Optics (Laser Diodes, Crystals, …)
Electronics (Detectors, RF References, …)
Instrumentation (Microscopy, Materials, Biochemistry, …)
Further Information
Please contact us for additional information, or consult the
current TEC Controller User Manual (Document 5134).
Copyright: Meerstetter Engineering GmbH
TEC-1089D
1
Document Number: 5133E (10 January 2013)
TEC-1089
Absolute Maximum Ratings
Operating Ratings
Supply voltage (DC)
Supply current (DC)
Bipolar output voltage
Bipolar output current
System base plate
Operation temperature
Storage
Humidity
26.5 V
10 A
±19 V
±10 A
< 50°C
0 – 60°C
-30 – 70°C
5 – 95%, non-condensing
Electrical Characteristics
Unless otherwise noted: TA = 25°C, VIN = 24 V, Rload = 1.75 Ω
Symbol
Parameter
DC Power Supply Input:
VIN
Supply voltage
VIN Ripple
Ripple tolerance
Test Conditions
Min
Typ
Max
Units
11.5
24
26.5
300
V
mVPP
±10
±19
A
V
mVPP
Output:
IOUT
Bipolar current swing
VOUT
Bipolar voltage swing VIN at least 3.5 V greater than VOUT
VOUT Ripple Voltage ripple
@ 10 A
±15
90
System Characteristics:
Power efficiency
η50%
Power efficiency
η90%
@ 50% load
@ 90% load
91
92
%
%
Output Monitoring:
IOUT Read
Precision
VOUT Read Precision
@ 0 A, 5.0 A, 10.0 A
@ 0 V, 7.5 V, 15.0 V
100
50
mA
mV
Temperature Monitoring Characteristics
TA = 25°C, object measurement configuration = 23bit / 4-wire, object °T probe = Pt100, sink °T probe = NTC B25/100 3988K R25 10k
Symbol
Parameter
Test Conditions
Temperature Monitoring Range (Standard):
NTC B25/100 3988K [Higher °T Config, default]
NTC B25/100 3988K [Lower °T Config, upon request]
TOBJ
°T on object side
Pt100
Pt1000
TSINK
°T on heat sink side NTC B25/100 3988K
Min
Typ
+13
-9
-50
-50
-6
Temperature Monitoring Precision:
TOBJ
°T on object side
Fluctuation of reference measurement
TSINK
°T on heat sink side during power-supply operation @70% load
0.001
0.05
Long-term Temperature Monitoring Repeatability:
TOBJ
°T on object side
Repeated measurements of reference
TSINK
°T on heat sink side resistors after up to 3 days
0.002
0.1
Max
Units
+150
+110
+200
+200
+150
°C
°C
°C
°C
°C
0.01
0.1
°C
°C
°C
°C
Safety Characteristics
Unless otherwise noted: TA = 25°C, VIN = 24 V, Rload = 1.75 Ω
Symbol
Parameter
Test Conditions
Input Overvoltage and Reverse Polarity Protection:
VIN Trans.
Transients
VIN Pol.
Polarity
built-in
Min
Typ
Max
Units
-26.5
V
V
28.2
Protection Delays:
tOFF Short circuit
tOFF Power system limits
tOFF System failure
tIMMUN Immunity to transient noise
Full load condition
Current and voltage limits
System status or temperature faults
Duration of noise on temperature monitors
Copyright: Meerstetter Engineering GmbH
2
10
100
300
30
200
µs
µs
ms
ms
Document Number: 5133E (10 January 2013)
TEC-1089
Package Outline and Pin Configuration
Peltier element, temperature probes, power supply and connectors not included.
Copyright: Meerstetter Engineering GmbH
3
Document Number: 5133E (10 January 2013)
TEC-1089
Operation-Modes and Communication Options
The TEC-1089 is an OEM precision TEC controller that is primarily designed to operate as a stand-alone device.
Once configured and in operation, its basic status is visually indicated by on-board green and red LEDs and their
blinking pattern. More detailed status information can be polled at any time by industry-standard RS485 connection
or by USB (see box below). The TEC-1089 can also operate in a remotely-controlled manner, with parameters
adjusted on the fly. The latest firmware upgrade introduced scripting capability by sequential lookup table read-out.
Configured as a power-supply, the TEC-1089 can handle current and voltage settings. In the remote-control case,
temperature data may be passed on to be processed by the host.
Also, two TEC-1089 devices can be linked to operate in a 'Master/Slave' mode to double the output current.
Configurable parameters further include: sensor linearisation (PTC) and Steinhart-Hart modeling (NTC),
temperature acquisition hardware calibration, Peltier element modeling, PID controller auto tuning, nominal
temperature ramping, current, voltage and temperature limits, error thresholds, residual current detection, etc.
Please refer to the TEC Controller User Manual (Document 5134) for further information.
TEC Service Software
The included service software is a powerful tool that
allows monitoring, data logging and full configuration
of the TEC-1089 via a standard USB or an RS485
connection from a PC running Windows.
This tool is ideal for laboratory setups, product
evaluation and commissioning. In conjunction with
the comprehensive set of error codes and built-in
descriptions, it facilitates diagnosis and debugging.
The software also supplies a user-friendly interface
for maintenance (e.g. firmware upgrades), device
calibration and basic data logging.
Please refer to the user manual for more information
on features and system requirements.
(Please note that the present service software is a
tool that has been programmed by Meerstetter
Engineering for internal use. It is being made
available to customers 'as is'.)
TEC-1089 Ordering Information, Hardware Configuration
Part number*
Object °T Configuration
Object °T Sensor
Sink °T Sensor
TEC-1089
23bit, 4-wire
Pt100
NTC 3988 10k
TEC-1089
………………..
………………..
………………..
* Line 1: Example Configuration, Please specify sensor types and configuration when ordering.
Object temperature measurement high resolution input can be hardware-set to either 2- or 4-wire configuration.
Object temperature sensor [not supplied] can be either Pt100, Pt1000, or NTC. Please refer to the user manual for
pre-set temperature range and default sensor type.
Sink temperature measurement 12bit input can cater for NTC sensors, or it can be omitted (budget version).
Please indicate temperature range and exact sensor type if different from standard.
Further customization can include digital lines for control or diagnosis and communication protocols. Please contact
Meerstetter Engineering GmbH with your inquiry.
Meerstetter Engineering GmbH
Schulhausgasse 12
3113 Rubigen, Switzerland
Phone: +41 31 712 01 01
Email: contact@meerstetter.ch
Website: www.meerstetter.ch
Meerstetter Engineering GmbH (ME) reserves the right to make changes without further notice to the product described herein. Information furnished by
ME is believed to be accurate and reliable. However typical parameters can vary depending on the application and actual performance may vary over
time. All operating parameters must be validated by the customer under actual application conditions.
Copyright: Meerstetter Engineering GmbH
4
Document Number: 5133E (10 January 2013)