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Serving OEM and Industrial Customers Since 1964
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Model 5R7-350
Model 5R7-347
(up to 10.4 Amperes)
each@Qty1
Model 5R7-350A
Model 5R7-347A
(includes dial)
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We have a new controller that is easier to work with and has better specifications. The BLE-350. Ask us for more information.
The BLE-350 is a Bluetooth LE enabled temperature controller. Each controller is configurable via PC software (available at no cost) using TTL UART communication or Bluetooth. The single output load circuit is pulse width modulated at 2KHz and delivers a load current up to 15 Amps. The BLE-350 supports 9-36VDC input and full PID control configurable through the available software application. Desired set temperature can be configured through the PC application or on-board potentiometer. The controller is capable of providing heating or cooling functionality.
BLE-350 Key Features
- Single output
- PID or On/Off Control
- Bluetooth or TTL UART communication
- Heat or cool capability
- Configurable alarm/PWM fan circuit
- RoHS compliant
- Set temperature range of -50 to 250°C
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5C7-350
Overview
The Model 5R7-350 Series controllers are general purpose, low cost,
open board
temperature controllers especially designed to operate with
thermoelectric
(Peltier effect, or TEC) modules. They use a
TR67
Series temperature sensor for a temperature range of -20°C to
100°C.
There is also a Model 5R7-347 Series that is similar to the Model
5R7-350
Series temperature controller but uses a
TR104
Series temperature sensor for a temperature range of 0°C to
120°C.
These controllers are compatible with peltier modules,
resistive heaters,
fans, and many other DC voltage devices that proportionately alter
operation
based on the amount of power supplied.
Most peltier modules may be operated in either a cooling
mode or a heating
mode depending on current direction. The 5R7-350 Series may be field
configured
for either of these operating modes.
These controllers were designed with a proportional /
integral control
algorithm to provide the best control at the most economical cost.
Either
a fixed or adjustable proportional bandwidth and integral rate permits
optimizing individual thermal systems.
The controllers are capable of providing up to 7.5
amperes of current
for modules rated at 12 through 24 volts DC with a mounting plate
temperature
of 25°C. Additional external heat sinking will permit operating
load
currents in excess of 10 amperes. The actual controller remains
functional
over an input voltage range of 9 to 24 volts DC.
Mechanical
Specifications
Customization
For a small but intelligent TEC controller with either
heat only or
automatic bi-phase heat and cool, consider a customized version of a 5R7-001
Series controller. For an NRE, we can provide custom, PC compatible
controllers with a much smaller footprint than our standard
controllers.
Interfaces include RS485, RS232, and I2C. The interface is used to set
up the controller or to monitor the temperature. Otherwise, a
configured
controller can run standalone.
- LOAD: Compatible
with Thermoelectric
(Peltier effect, or TEC) modules, resistive heaters, fans, and many
other
DC voltage devices that proportionately alter operation based on the
amount
of power supplied.
- STABILITY: The
controller itself has
an internal resolution of approximately 0.5°C, and that means the
best
attainable stability is between 0.5°C and 1°C.
Many
of our customers attain their desired stability with the off-the-shelf,
low cost, general purpose controller, and are using it in production.
Stability
is intimately related to your thermal system. If you are not seeing the
stability your application requires, we can, for an NRE, build a custom
unit. We have many ways to adapt this controller to your requirements
and
to the specific parameters of your thermal system.
- OUTPUT
- Uniphase: Single mode operation for either HEATING or COOLING applications
switched by jumper (you could also use an external switch or relay).
- PWM: Pulse width modulated output with a base
frequency of 400 Hz
- Proportional / Integral
Control Algorithm
- Proportional Bandwidth: Adjustable or fixed
proportional bandwidth
of 0.5°C to 5°C using an on board potentiometer.
- Integral Gain: Adjustable or fixed integral
rate of 0 to 2.55 repeats
per minute (also known as "sample rate".) using an on board
potentiometer
- Power
- Using Single Output Power Supply: Rated for
up to 7.5 amps at 12
to 24 volts DC with a 25°C. mounting plate temperature. (Controller
will operate down to 9 volts DC. Request more information.)
- Using Dual Output Power Supply (or 2 supplies):
Less than 500 ma
at 12 to 24 vdc is needed for the control circuit. (Controller
will
operate down to 9 volts DC. Request more information.) Power supply for
the load can be 3 to 24 vdc and maximum of 7.5 amps.
Application
Note
- Current Limiting: 14 amps maximum.
- Thermal Shutdown: Output device has linear
current limiting to 14
amps maximum. with built-in thermal shutdown
- Reverse Polarity:
Output device has
reverse polarity protection.
- TEMPERATURE
- Operation
- Ambient Operating Temperature
- Connections: via
0.250 quick connect
(quick-disconnect) terminals
- Dimensions:
Mechanical
Specifications
- Production Models:
Once the controller
is configured for your application we provide services that can lower
the
cost and simplify configuration, production, and distribution.
Full featured / Low Cost.
Implementation
Notes
Mechanical
Specifications
For general information about power supplies see our
Library page: Power
Supply Notes.
MULTIPLE SET POINTS: Since the temperature is set
using a potentiometer,
and the heat and cool mode is determined by a jumper, it is relatively
easy to make a circuit that allows you to easily switch between two or
more temperature settings. Here is an example of a circuit for
switching
between two temperatures where the heat or cool mode does not need to
be
changed: ...
Circuit
for 5R7-350A with 2 Temperature Settings.
FOR FIBER OPTIC COMPONENTS AND LASER DIODES...
Note.
Pricing
Note: Prices shown are for the
controllers only.
Sensors, TE modules and power supplies may be available but are not
included
in the controller pricing.
Lead Time: The 5R7-350 and 5R7-350A
are generally
in stock and can be shipped in 2 to 4 days ARO. The other controllers
are
not generally maintained in volume in stock. Out of stock items may
have
a 1 to 4 week lead time.
SENSOR PRICING
Click
here for TR67 Series Sensor Housings and Prices (-20°C
to 100°C Range)
Click
here for TR104 Series Sensor Housings and Prices (0°C
to 120°C Range)
Model
5R7-350 (-20°C
to 100°C
using
TR67
Series Sensors)
Model
5R7-347 (0°C
to 120°C
using
TR104
Series Sensors)
Quantity 01 price:
each
Lower prices
are available at higher volume starting at
quantity 2.
Model
5R7-350A (-20°C
to 100°C
using
TR67
Series Sensors)
Model
5R7-347A (0°C
to 120°C
using
TR104
Series Sensors)
Kit
includes controller, cable, knob, potentiometer and Celsius dial decal.
Quantity 01 price:
each
Lower prices
are available at higher volume starting at
quantity 2.
Additional
dial scale assemblies (including cable and scale) can be ordered.
Model
Numbers:
"Dial
Scale Assy for the -350A"
"Dial
Scale Assy for the -347A"
Price:
$ Ask.
- General
Notes on Pricing of the above controllers.
- Controllers
Only: Prices shown are for the
"controllers
only".
- Currency:
All prices are $US.
TEMPERATURE SENSORS
Ohms@25°C
THERMISTOR SERIES
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RELATED SENSOR PAGES
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DESIGN & MANUFACTURING
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With our RS485/RS232 interface you can run any RS485 device off your computer's serial port (the RS232 COM port). Our interface is an opto-isolated "Automatic Transmit-Enable" converter (°3000VDC, 1 second). This device is RS232 to RS485 and back with 9-35VDC single-supply operation, communications status lights, on-board RS485 protection, and other enhancements. Includes enclosure, power supply and RS-232 cable.
Model IHV24AT-B9FSPS
$140.00 QTY1
when purchased with controllers.
$180.00 QTY1 Alone
OEM/QTY pricing is available.
For Fiber Optic Components and Laser Diodes. . .
Our customizedTEC Controllers are widely used for OEM Fiber Optic Component and Laser Diode commercial products.
Telecom coolers.
Laser diode temperature control.
WDM temperature control (Wavelength Division Multiplexer).
DWDM temperature control (Dense Wavelength Division Multiplexer).
AWG temperature control (Arrayed Waveguide).
FBG temperature control (fiber Bragg grating).
and temperature control for other temperature sensitive fiber optic components.
And our standard controllers are used in Q&A, university projects, or the laboratory.
Temperature Control of Fiber Optic Components and Laser Diodes
If you need to control the temperature of electronic or fiber optic components, you are probably considering a small resistive heater or TE (peltier) module. The TE module is a common choice for temperatures near or lower than ambient because they can cool as well as heat. A resistive heater may be a good choice for high temperatures. Our customers are generally looking to control DC voltage TE modules or heaters.
Start your R&D with our standard controllers. More power and feature rich, they will help you define your requirements. Standard TEC Controllers (TECC) are at the top of our Descriptive Index. These have PC communications, but you only use that for PC based configuration or monitoring, or for operation from your own custom program. Otherwise, these can run stand-alone.
Depending upon the overall dynamics of your thermal system, it is possible to achieve a laser diode or fiber optic component spectral stability of ±0.1 nm (±0.001 Absorbance Units) or better using one of the standard controllers.
Unlimited Potential
Quality Custom Solutions and Outsourcing . . . If you are building a controller into a product, customization is the key to lower cost and a controller that has the 'perfect fit'. Major players in the fiber optics industry are using our custom built products and services.
Switch to different thermistors, or to Platinum RTD, or to thermocouples. Switch communications to I2C. Customize the circuit board and then go to SMT. UL approval, certified medical, military spec, etc. We have done it all.
Fast Track your OEM Product
Give your design cycle a kick start . . . our expert advice can save you time and effort in helping to determine an effective thermal system.
RS232 SERIAL PORT CONNECTION
Usually you connect to the serial port of the computer using
a female DB9 or female DB25 connector. Also referred to as a
female 9 pin, or female 25 pin, D-shell connector. The serial
port is RS232C (or RS-232C). RS232 stands for Recommended
Standard number 232, and the C stands for revision C. Each RS232
device at our site connects to an RS232C serial port through
a cable you provide (unless otherwise noted). 3 wires are generally
used: Signal Ground, Trasmitted Data (TD), and Received Data (RD),
otherwise referred to as Ground, Transmit and Receive. At both
ends of the cable, pin 1 is Ground. At the computer,
Receive is pin 2, while at the peripheral (e.g., temperature controller)
it is pin 3. At the computer,
Transmit is pin 3, while at the peripheral it is pin 2. The connection
is made via "twisted pair" - which
means the Transmit and Receive lines are twisted around each
other along their length, from one end to the other. For the cable, solid copper wire
is preferred over stranded wire simply because there are no strands
at the end that can break off, or bend out, and short the connection. With appropriate
converters you could connect by other means, such as infra-red light (e.g., IrDA).
RS485 Serial Communications
RS485 (Recommended Standard 485) is specified to handle up to 32 devices in one
loop. The "loop" is a length of 2 or 3 wires: +, - and ground. The devices
tap into the wires along their length. The end of the + and - pair of wires
is terminated with a resistor. Modern ICs used as an interface to the loop
can sometimes handle more that 32 devices on one loop. It is sometimes
possible to have 64 or 96 or more devices on the same loop. With RS232/RS485
converters, each loop uses one of the computer's COM ports. Baud rates
greater than 100,000 baud are possible depending on the computer and the
operating system. An edge connector allows you to attach a cable for the
RS-485. 2 wires minimum [A and B, or (+) and (-)] are usually needed but
COMMON is provided as well. Any untwisted wire is fine for a short run,
but best, especially for long runs, is shielded, twisted pair, 120 Ohm
characteristic impedance cable. for more detailed information see our library
document RS-485
Serial Interface.
AMBIENT OPERATING TEMPERATURES
Definition of Ambient Temperature
"The temperature of the atmosphere, liquid, or other medium surrounding an object."
Source: The World Book Dictionary, © 1966 by Doubleday & Company, Inc.
Low Ambient Operating Temperatures
Almost all of our temperature controllers will function at ambient temperatures down to -20ºC (-4ºF).
Many designs will accept a -40ºC (-40ºF) operating ambient. Custom controllers can be built to operate down to -55ºC (-67ºF).
Operation at the low ambient is determined by the ICs used and their ability to have
the correct gain and stable states. The output or load circuit may require
increased drive to turn on. Any design that is specified to a low ambient
operating temperature has been tested and shown to provide sufficient output
drive at that temperature.
High Ambient Operating Temperatures
The high temperature is harder to define than the low, because the high ambient
operating temperature depends upon the controller power dissipation and
the heat sink dissipation.
For all our Pulse Width Modulated (PWM) controllers the following applies:
The power dissipation of the controller is largely a function of the load
current, and only slightly a function of the input voltage. Example: A
unit running at 28v and 25 amps will dissipate the same power into the
base as one which is 12v and 25 amps, however reducing the load current
to 12.5 amps will reduce the power dissipation into the base by 1/2.
For an analog controller, the standard 1/4 power point analysis applies
when determining power dissipation.
Specific Examples
TECC:
The TE controllers are limited by the base plate (mounting bracket) temperature,
because this is the heat sink for the bi-phase H-Bridge. Under full load
the controller will be dissipating approximately 15 watts into the base
plate, Therefore, if the controller is operated at elevated temperatures
you need to provide additional heat sinking for the base plate. At laboratory
temperatures (room temperature, about 20ºC or 70ºF) the controller
will reach about 75ºC under full load. So if you provide an additional
heat sink which results in, say. 70ºC in a 50ºC ambient, the
controller will still function appropriately.
Model 5C6-353: This Laboratory Benchtop Temperature Controller with a 10
Ampere maximum output is designed to run in a laboratory environment. Maximum
ambient operating temperature is 35ºC to 40ºC (95ºF to 104ºF).
Model 5C6-355: This Laboratory Benchtop Temperature Controller with a 15
Ampere maximum output is designed to run in a laboratory environment. Maximum
ambient operating temperature is 30ºC (86ºF).
Model 5CX-140: The 5CX-140 series of controllers have a "derating curve"
(see below) on the customer drawing that is defined by the temperature of the case.
5CX-140 Series Derating Curve
Controllers OnlySensors, TE modules, power supplies, device drivers, cables, etc. may be available for this product but are not included in the pricing.
TR104 Series Sensors
TR104 SERIES 50K OHM THERMISTORS
TR67 & TR136 Series Sensors
TR67 & TR136 SERIES 15K OHM THERMISTORS