Showing posts with label pressure switch. Show all posts
Showing posts with label pressure switch. Show all posts

Monday, July 16, 2018

Hazardous Area Adjustable Pressure Switch with Turck® Connector Eliminates Need for Junction Box

CCS Series 6900GE* and 6900GZE*Custom Control Sensors (CCS) is a manufacturer of pressure, temperature and liquid flow switches and sensors for the aerospace, defense, industrial and energy markets. They have a new pressure switch design with an integrated Turck® electrical connection that provides an outstanding seal and eliminates the need for a junction box.

CCS Series 6900GE* and 6900GZE*

The Turck® electrical connection provides easy “plug and play” in Class I, Division 2 applications and superior ingress protection.
  • No electrical junction box required.
  • Highly reliable devices utilizing the CCS Dual-Snap® Belleville disc spring principle pioneered by CCS’ engineers.
  • Engineering based on aerospace technology.
  • Rigid, compact and internally adjustable for convenient field set point adjustment.
  • Repeatable and stable set points.
  • Vibration and shock resistant.
  • High cycle life.
  • High over-pressure capability. (System and Proof)
  • Hermetically sealed electrical assembly for environmental protection.
Adjustable set point range:
1 to 3400 PSIG 0.07 to 234 bar 6.89 to 23400 kPa

Operating temperature: Temperature limits change with O-ring selection. -40° to 176°F (-40° to 80°C)

Standard features:
  • CE Mark
  • CRN
  • Dual Seal: ANSI/ISA-12.27.01
  • NACE MR0175 / ISO 15156
  • NEMA: 4, 7, 9,13 / IP66
  • U.L. / cUL
  • Hermetically Sealed Electrical Assembly
  • 316 SST Electrical Assembly
For more information, contact Mountain States Engineering & Controls by visiting https://mnteng.com or by calling 303-232-4100.

Friday, February 2, 2018

Pressure and Temperature Switches for Rugged Industrial Applications

adjustable pressure switch
This adjustable pressure switch is one of many variants
available to suit every application.
Image courtesy Custom Control Sensors (CCS)
Matching up the most appropriate control device for a processing application, taking all factors into account, may not always result in a selection of the most technologically advanced, complex or full featured solution. Sometimes, all that is needed is a device with a limited performance set, but one that performs its functions reliably in a challenging industrial environment.

Industrial versions of temperature, pressure and differential pressure switches are fitted with appropriate mountings for the process and housings for the installation environment. Hazardous location installation can be accommodated. High current switch ratings and auxiliary functions add to the usefulness of these devices. There are almost countless variants available to accommodate almost every application. Don’t overlook these simple and reliable mechanical devices as candidates for application in temperature and pressure control. Share your application requirements and challenges with product specialists for useful recommendations.



Wednesday, June 1, 2016

Pressure and Temperature Switches for Demanding Industrial Applications

industrial temperature switch for hazardous location
Industrial Temperature Switch
for Hazardous Location
Courtesy CCS
Industrial process control applications, by their very scale and nature in financial, operational, and safety terms, call for rugged and well performing devices and equipment. In the area of temperature and pressure related control, switches are often employed to achieve or respond to an enormous range of possible conditions.

Temperature and pressure switch reliability is especially critical in applications located within hazardous zones or locations. Custom Control Sensors (CCS) manufactures pressure and temperature switches for the most demanding applications in hazardous environments.

Products are designed to provide high cycle life through the use of a Belleville spring to reduce mechanical wear on the switch element. The switches have no moving parts, other than the actuating mechanism which has a limited movement of 0.01 inch.


CCS products for hazardous locations are routine deployed on

  • Oil Platforms
  • Pump Control
  • Refineries
  • Control and Annunciator Panels
  • Relay Alarm Systems
  • Pipelines
  • Gas/Steam Turbines
  • Oil Filtration

Included below is a short form catalog illustrating the CCS line of pressure and temperature switches for hazardous and non-hazardous locations. In addition to the suitability of the industrial switches for use in hazardous areas, CCS temperature and pressure switches exhibit these main features:

  • High Cycle Life
  • Wide Range of Set Points
  • Protection Against Environment
  • High Over-Pressure Capability
  • No calibration needed
  • Maintenance free
  • High vibration resistance
Consider your temperature and pressure related applications and share your challenges with a product application specialist for the best solutions.


Monday, October 12, 2015

Easy Pressure Switch Installation for Hazardous Areas

Adjustable Setpoint Pressure
Pressure Switch for Hazardous
Areas
Courtesy Custom Control Sensors
Industrial process control applications present an unending stream of challenges to designers, engineers, technicians, and other stakeholders. Because of the general nature and scale of industrial operations, there is often danger and risk involved during normal operation, as well as the potential for catastrophic impact to personnel, environment, and other assets in the the case of failure. The equipment and components we employ in our processes have three areas of consideration. Firstly, they must perform some range of functions reliably under normal operating conditions. Second, the contribution of any device to the risk of process failure must be minimized. Thirdly, there may be performance requirements for the device under abnormal process or environmental conditions.

Hazardous areas, with potentially explosive atmospheres due to the presence of certain gases or fine particulates, pose a particularly challenging set of circumstances to those of us striving to make things work properly. Everything within the hazardous area must be hardened in such a way that it poses no risk of being the source of ignition of the surrounding atmosphere. There are various effective methods for accomplishing this, most of which involve substantially increased cost and time.

Custom Control Sensors, a manufacturer that devotes a substantial portion of its product line to control devices for use in hazardous areas, has added a new development to their series of adjustable setpoint industrial pressure switches. The latest addition to the line is suitable for hazardous areas and has a unique feature that will save time, money, and a even a little space in your process area.

The newest version of the company's 6900 series industrial pressure switch features a Turck® connector that simplifies installation in Class I, Division 2 applications. Use of the connector eliminates the need for an electrical junction box at the sensor location and makes installation or removal of the device a simple operation. This improvement simplifies the deployment of pressure switches in hazardous areas.

The features and specifications for the product are included in the data sheet that I have shared below. The manufacturer sees applications for the product in:

  • Wellhead control panels
  • Chemical injection skids
  • Hydraulic control packages
  • Gas compression skids
  • Off-shore and on-shore installations
You may have your own potentially advantageous applications for this or some other CCS products. Contact a product specialist to explore product solutions to your process challenges.





Tuesday, March 31, 2015

Pressure Switches for Industrial Applications

pressure switch
Industrial
Pressure
Switch
(CCS Dualsnap)

A pressure switch is a device that detects the presence of fluid pressure. Pressure switches use a variety of sensing elements such as diaphragms, bellows, bourdon tubes, or pistons. The movement of these sensors, caused by pressure fluctuation, is transferred to a set of electrical contacts to open or close a circuit.
Pressure Switch Symbols

Normal status of a switch is the resting state with stimulation. A pressure switch will be in its “normal” status when it senses low or minimum pressure. For a pressure switch, “normal” status is any fluid pressure below the trip threshold of the switch.

One of the earliest and most common designs of pressure switch was the bourdon tube pressure sensor with mercury switch. When pressure is applied, the bourdon tube flex's enough to tilt the glass bulb of the mercury switch so that the mercury flows over the electrical contacts, thus completing the circuit. the glass bulb tilts far enough to cause the mercury to fall against a pair of electrodes, thus completing an electrical circuit. Many of these pressure switches were sold on steam boilers. While they became a de facto standard, they were sensitive to vibration and breakage of the mercury bulb.

Pressure switches using micro type electrical switches and force-balanced pressure sensors is another common design.  The force provided by the pressure-sensing element against a mechanical spring is balanced until one overcomes the other. The tension on the spring may be adjusted to set the tripping point, thus providing an adjustable setpoint.

One of the criteria of any pressure switch is the deadband or (reset pressure differential). This setting determines the amount of pressure change required to re-set the switch to its normal state after it has tripped.  The “differential” pressure of a pressure switch should not to be confused with differential pressure switch, which actually measures the difference in pressure between two separate pressure ports.

When selecting pressure switches you must consider the electrical requirements (volts, amps, AC or DC), the area classification (hazardous, non-hazardous, general purpose, water-tight), pressure sensing range, body materials that will be exposed to ambient contaminants, and wetted materials (parts that are exposed to the process media).

Tuesday, January 20, 2015

Non-Hazardous Industrial Pressure and Temperature Switches

A quick reference to Custom Control Sensors (CCS) DualSnap non-hazardous pressure and temperature switches for industrial process control application.

Used in petrochemical, chemical, water treatment, pulp & paper, military, aerospace, commercial food processing, power generation, pipelines, bulk storage facilities and mining.

Friday, November 21, 2014

Pressure and Temperature Switches Glossary - Important Terms to Know Part 2

CCS Dualsnap pressure switch
CCS Dualsnap
pressure switch
Pressure and temperature switch terms part two, courtesy of CCS Dualsnap (Custom Control Sensors).

NACE (National Association of Corrosion Engineers) — Nonprofit technical association that develops and maintains standards that deal exclusively with protection and performance of materials in corrosive environments. The membership represents a cross–section of industry concerned with corrosion prevention and control.

NEC (National Electrical Code) — The American national standard that contains provisions considered necessary for safeguarding persons and property from hazards arising from the use of electricity. Generally, the code covers electric conductors and equipment installed within or on public and private buildings or other structures.

NEMA (National Electrical Manufacturers Association) — A voluntary organization that adopts standards for electrical equipment. NEMA standards are designed to eliminate misunderstandings between the manufacturer and the purchaser and to assist the purchaser in selecting and obtaining the proper product for a particular need.

Monday, November 17, 2014

Pressure and Temperature Switches Glossary - Important Terms to Know Part 1

Dualsnap (CCS) Pressure Switch
Dualsnap (CCS)
Pressure Switch
The following two part series, courtesy of CCS Dualsnap (Custom Control Sensors) provides some very important terms to know when applying or purchasing industrial pressure switches and temperature switches.

ACCURACY (REPEATABILITY) — Accuracy is the maximum operational set point deviation of a single sensor (a pressure, temperature, or flow switch) under one given set of environmental and operational conditions. CCS Repeatability is within +/- 1% of set point.

ACTUATION AND DEACTUATION POINT — The actuation point (sometimes called the set point) is the exact point at which the electrical circuit controlled by
the switching element is opened (or closed) on increasing pressure or temperature. The deactuation point is the opposite, or the point at which the electrical circuit is closed (or opened) on decreasing pressure or temperature.

Wednesday, November 5, 2014

Negative Rate Belleville Disc Spring for Pressure Sensing

negative rate belleville spring
Conventional pressure switches incorporate constant-rate sensing technology (Bellows, Bourdon Tube, Spring Loaded Piston). Another technology available is the negative rate Belleville disc spring, which combines a Bellville disc with a fully adjustable helical spring and a diaphragm.

negative rate belleville spring
The advantage of this technology is minimized or eliminated effects caused by vibration, low temperature, high cycle life / premature wear, contact chatter and pump ripple. The switch is either on or off and there is no “teasing” of the electrical element. There are no moving parts except during actuation and de-actuation. The total movement is typically less than .010 inches.

In this design, the diaphragm is not a sensing element. It simply seals the media and transfers force to the disc spring, which responds instantaneously when system pressure reaches the set point.
negative rate belleville spring

Tuesday, August 26, 2014

Pressure Measurement for Industrial Applications


digital pressure gauge
Digital Pressure Gauge
(Winters)
Pressure measurement is critical in many processes and essential in many industries. There are many techniques used to measurement pressure and vacuum (negative pressure). Instruments used to measure pressure are called pressure gauges, switches and transmitters.

Fluid pressure is defined as the measure of force on a surface, per some unit of area, perpendicular to the surface. The standard unit of measurement for pressure measurement in the English system is PSI, or pounds per square inch. In countries that use the Metric system, the Pascal (Pa) or the Newton/meter (N/m2) is used.



Thursday, June 26, 2014

Electromechanical Pressure, Differential Pressure and Temperature Switches - The Basics

Pressure
Switch
(CCS)
Most industrial applications require the monitoring of pressure and temperature of a process. Pressure and temperature measurement can be accomplished either by transmitters, gauges or by switches. This post will provide a quick introduction of industrial electromechanical pressure switches and temperature switches.

An industrial pressure and temperature switch is made up of the three main components: 1) the sensor, 2) the housing and 3) the switching element.

The correct combination of each component assures proper application of the device for its intended use.