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Industrial-Duty Temperature/Process Controllers Industrial-Duty Temperature/Process
Controllers How to select the right controller
The choice is simple with Danaher
Industrial Controls.
Before you can select the ideal controller, be sure to
assess your process control application requirements.
Key questions to ask yourself about your process applica-
tion from a form, fit and function perspective include:
Form/Fit Where will the controller need to be
mounted to be able to be read by the machine
operator (i.e. FTP front of the panel or BTP
behind the panel)? Are there any unique application requirements
and or environmental conditions that will affect
your controller? (For example, limited space, high
ambient temperature, dust/dirt protection,
explosive/corrosive environment, other.) Controllers
come rated with various agency approvals and
environmental protection ratings (i.e.,
NEMA4X/IP65) and are better suited for certain
application environments than others. Are there any specific mounting size
requirements? (1/32 DIN, 1/16 DIN, 1/8 DIN,
1/4 DIN) What power voltage is available? (100-240 VAC,
20-50 VAC, 22-65 VDC, 12-24 VAC, 12-30 VDC) If this is a temperature control application, what is
the temperature range of the application?
Function What specific purpose(s) will the controller serve?
What do you want to control or drive? (For example,
will a temperature controller drive an electric heating
element, gas burner, gas valves, etc.?) What process or steps (recipe) will the controller
be required to go through and track? How many controllers does your process require
for the task? One or multiple? How many control loops do you need? What type of control action do you need?
Direct acting (cooling), reverse acting (heating),
time/temp profiling (ramping), retransmit, etc. What process tasks such as temperature,
pressure, pH or flow require monitoring and
controlling? What type of control mode do you intend to
use? (ON/OFF, PID) What type of sensor(s) do you intend to use?
(Thermocouple, 2- or 3-wire RTD, infrared,
other) Do you intend to use process inputs?
(4-20mA DC/0-5 VDC) Do you intend to use event outputs?
(Available as an option on profiling
controller models only) What type of control output do you need?
(Relay, SSR driver, triac, linear) Do you need alarm outputs? Do you need communication?
Reader/User Tip:
For more information call our Technical Support hotline
or see our online Application Assistance Form in the
Services & Support section of
www.westinstruments.com
.
Also refer to our Short Form Catalog and Basics of
Temperature Control Handbook. Controllers By Application
Danaher Industrial Controls Group (DICG) West brand
renowned controllers can help you integrate and design
the right process control solution to fit your specific
application. No matter what your application, Danaher
Industrial Controls likely has the ideal temperature/
process control solution. Our broad assortment of
digital controller products are used in thousands of
diverse industries every day, providing superb quality
and reliable performance. As your one-stop shop for
controllers we are confident that we can help you find
the right solution for your application need quickly
and easily.
Browse this section to learn how DICG West brand
process control products can help you with your
application. The following are just a few of the more
common controller industrial applications.
Environmental Control
Environmental control, as its name implies, refers to
critical process variables such as temperature and
pressure that are critical in process applications such as
ovens.
Temperature Control
Temperature controllers provide closed-loop control
of industrial and laboratory heating and cooling
processes. A thermocouple (T/C) or RTD input
device senses the temperature while the controller
constantly compares the measured temperature
against a user specified setpoint. When the actual
temperature deviates from setpoint, an output
signal and/or high/low alarm is produced for
control of heating or cooling elements.
Pressure Control
Controllers monitor process variables vital to test
chambers, laboratories, and industrial heating and
cooling applications. In a pressure tracking
application, controllers monitor pressure using a
transducer that feeds a signal back to the controller.
The measured pressure is constantly compared to a
user specified setpoint. When the actual pressure
deviates from setpoint, the controller outputs a
4-20mA signal to the valve control system, which
adjusts the pressure back to the specified range.
Humidity Control
Controllers calculate humidity using an RTD or T/C
input sensor covered by a sock that lies in a pan of
water and a dry RTD or T/C input sensor. The
difference in the wet bulb and dry bulb input signals
provides the variable for control.
Process Control
Process control can involve many different variables
from liquid level and flow control to pH control.
Consider the following application examples:
Liquid Level/Flow Control
Controllers can be used to monitor and track level
and flow for control of processes involving liquids or
gases. In a typical gas flow application, a valve motor
drive controller controls the gas flow on a burner
within a production line. A liquid level sensor input
continually compares the liquid level process value
to the specified setpoint. When the actual liquid
level deviates from the setpoint parameter, the
controller outputs a control signal to a motor that
controls the valve. The signal tells the motor how
much to open or close the valve in order to
maintain flow rate within the specified parameters.
pH Control
In water treatment and monitoring applications, a
pH sensor monitors a process and transmits to a
recorder that records the inputs and continually
compares the process value to the specified setpoint.
A controller can actuate a relay output that turns on
dosing pumps to either increase or decrease the acid
or base of the liquid to ensure that the optimum pH
level is maintained. Which type of industrial-duty controller do you need?
Single-Loop, Basic Controllers &
Indicators
Our new generation
+ Series digital indicators
combine styling, simplicity
and industrial functionality
and are trusted for reliable,
low-cost, high-contrast visual
display of industrial process
variables. Utilizing manual setpoint changes, West
brand basic single-loop front-to-panel analog
controllers are trusted for reliable, low-cost control of
process variables in harsh industrial environments,
even those plagued by electrical noise.
Types:
Front to Panel (FTP): Analog, Digital
Single-Loop, General-Purpose
Controllers
West brand single-loop, front-
to-panel general-purpose
controllers are fit for
general industrial use
in a wide variety of
applications, ranging from
safety shutoff to valve motor
control. The next generation design adds versatile
features and user-friendly functionality across the
range: digital inputs and easy-to-use HMI, jumperless
and auto-hardware configuration, 24VDC transmitter
power supply and Modbus
®
communication. As a
result, the new West+ Series temperature and limit
controllers are affordable, well-featured, easy to use
and adaptable with performance features that work for
you to make temperature and limit control simple.
Types:
Front to Panel (FTP): Analog, Digital
Limit
West programmable safety cutout limit controllers
with optional alarms are useful in a wide variety of
applications. They provide latched relay output
configurable for high/low limit setpoints whereby
fail-safe shutoff must be manually reset before the
process can continue. Now available in new genera-
tion + Series platform 1/4, 1/8, and 1/16 DIN models.
Temperature/Process
Our new generation West + Series temperature/
process controllers are value-priced, user-friendly,
versatile and well featured general-purpose controllers.
They feature plug-and-play output cards that cost-
effectively adapt the controller to a wide range of
industrial applications, including industrial and lab
ovens/furnaces, plastics/thermal forming and
packaging applications to name a few. Virtually
anywhere low cost, small size and unmatched
connectivity process/temperature controller, are
required, the + Series is a natural choice.
The choice is simple with
Danaher Industrial Controls.
Valve Motor Drive
West valve motor drive controllers are designed to
control motor drives used in many manufacturing
applications, such as a gas burner control on a
production line. Our VMD tuning algorithm provides
accurate, fast control via continuous on-line open loop
tuning which gives stable control at all times. Pre-tune
and auto-tune features make user setup easier in what is
generally considered to be a complex measurement area.
Application/Industry-Specific
Controllers for Plastics Forming
Designed specifically for
control of temperature in
plastic molding and forming
applications, these controllers
provide early warning of heater
element failure prior to
production problems for
improved product quality and reduced incidence of scrap.
Easy programming of setpoints, soft-start, plus pre-tune
and self-tu