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PTC10K-CH Datasheet PDF - WAVELEnGTH

Part Number PTC10K-CH
Description Chassis Mount Temperature Controllers
Manufacturers WAVELEnGTH 
Logo WAVELEnGTH Logo 

Preview ( 21 pages )
		
PTC10K-CH datasheet, circuit
DATASHEET AND OPERATING GUIDE
PTCxK-CH Series
Chassis Mount Temperature Controllers
TIME-TESTED RELIABILITY
The PTCxK-CH Series Chassis Mount Temperature
Controllers deliver the precision performance and long-term
reliability you expect from a Wavelength Electronics
temperature controller.
APPLICATIONS
PTCxK-CH Series controllers are found in such diverse
applications as particle and droplet measurement,
manufacturing machine vision systems, biomolecular
interaction analysis, and more.
FEATURES AND BENEFITS
• Drive up to ±2.5, ±5.0, or ±10.0 A of linear bipolar
TEC or heater current
• Add a booster unit to drive up to ±20.0 A
• Single supply operation: 5 to 30 VDC
• Small package: 3.0” x 3.2” x 1.1”
• Use a wide variety of temperature sensors
• Remote Output and Setpoint controls
• Short term stability: 0.0012°C
• Long term stability: 0.002°C
• Selectable sensor bias current
• Adjustable current limit
• Failsafe Setpoint default in case of remote
temperature setpoint signal error
VERSATILE AND EASY TO USE
The PTCxK-CH controllers operate from a single power
supply between 5 V and 30 V. The linear bipolar controller
drives a Peltier thermoelectric cooler or a resistive heater,
and integrates easily into OEM applications.
PTCxK-CH controllers interface with a variety of
temperature sensors, and the bias current is adjustable in
order to maximize controller sensitivity and stability.
The compact chassis mount design simplies heatsinking
and requires minimal space. PTCxK-CH controllers are
quick to congure for your prototype project, and there are
no surprises when it’s time to integrate the controller into
the nal design.
CONTENTS
QUICK CONNECT GUIDE
PIN DESCRIPTIONS
ELECTRICAL SPECIFICATIONS
SAFETY INFORMATION
OPERATING INSTRUCTIONS
ADDITIONAL TECH NOTES
TROUBLESHOOTING
CABLE SPECIFICATIONS
MECHANICAL SPECIFICATIONS
CERTIFICATION AND WARRANTY
PAGE
2
3
4
5
6
14
17
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21
ORDERING INFORMATION
PART NO
PTC2.5K-CH
PTC5K-CH
PTC10K-CH
PTC10K-SL
WCB105
WCB106
WCB107
WCB501
USBKIT
DESCRIPTION
±2.5 A Temperature Controller
±5.0 A Temperature Controller
±10.0 A Temperature Controller
±10.0 A Booster Unit
Sensor Cable (included)
Input / Output Cable (included)
Power / TEC Cable
Master / Booster Cable
USB Interface kit, with software
e Pb
RoHS
406-587-4910
Applies to Product Revisions A – E
www.teamWavelength.com
© November 2013

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PTC10K-CH equivalent
PTCXK-CH TEMPERATURE CONTROLLER
SAFETY INFORMATION
THEORY OF OPERATION
SAFE OPERATING AREA — DO NOT EXCEED
INTERNAL POWER DISSIPATION LIMITS
Before attempting to operate the PTCxK-CH Controller, it is
imperative that you rst determine that the unit will operate
within the Safe Operating Area (SOA). Operating the unit
outside of the SOA may damage the controller or the load.
Operating outside of the SOA will void the warranty.
To determine if the PTCxK-CH Controller is suitable for
your application and if it will be operating in the safe range,
consult the online instructions for calculating the Safe
Operating Area:
http://www.teamwavelength.com/support/calculator/soa/soatc.php
SOA charts are included in this datasheet for quick reference
(page 16), but we recommend you use the online tools
instead.
TO ENSURE SAFE OPERATION OF THE PTCXK-CH
! CONTROLLER, IT IS IMPERATIVE THAT YOU DETERMINE IF THE
UNIT IS GOING TO BE OPERATING WITHIN THE INTERNAL HEAT
DISSIPATION SAFE OPERATING AREA (SOA).
The PTCxK-CH Series are high-current linear temperature
controllers that deliver bidirectional current to Peltier Effect
thermoelectric coolers, or unidirectional current to resistive
heaters.
The fundamental operating principle is that the controller
adjusts the TEC drive current in order to change the
temperature of the sensor that is connected to the thermal
load. The goal is to make the voltage across the sensor match
the setpoint voltage, and then keep them equal in spite of
changes to ambient conditions and variations in thermal load.
The controller measures the load temperature by driving a
current through the temperature sensor and measuring the
voltage drop across it. It may be useful to remember that you
do not directly adjust the setpoint temperature. Rather, you
adjust a voltage signal that represents the sensor voltage at
the desired temperature setpoint.
While output is enabled, the controller continuously compares
the setpoint voltage and the actual sensor voltage. If there is
a difference between the two signals the controller adjusts the
output current—thereby driving the TEC or heater to change
temperature—until the difference is zero.
If you have any questions about the Safe Operating Area
calculator call the factory for free and prompt technical
assistance.
Once the actual sensor voltage equals the setpoint voltage,
the controller makes minor adjustments to the output
current in order to keep the difference at zero. If the ambient
temperature changes, for example, the controller will adjust
the drive current accordingly.
The controller includes features that help protect the load
from damage, and also make it more versatile in a wide array
of applications.
• Current limit: the adjustable current limit must be set
correctly in order to avoid over-driving and damaging the
TEC or heater.
• External and Onboard temperature setpoint control:
for prototyping and benchtop applications the temperature
setpoint can be adjusted with the onboard trimpot. When
the controller is integrated in an automated control system
the temperature setpoint can be adjusted by a remote
voltage signal.
• Remote Enable and Local Enable: the controller can be
congured to use a remote signal to enable the output,
or it can be congured so that the output is always on
whenever power is applied to the unit.
• Control loop: the controller employs a smart Proportional-
Integrating control loop to adjust the drive current. The
proportional term is user-adjustable, and when properly
congured will quickly settle the load temperature with
minimal overshoot and ringing.
© 2013
www.teamWavelength.com
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Information Total 21 Pages
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