Product Information
This area of the MurCal web site is dedicated to providing information regarding the various products we carry. This includes FAQ and links to Articles in our Blog that go in depth. They are categorized by Brands in alphabetical order.
Remember, you can always call MurCal at 661-272-4700 if you'd prefer talking to one of our helpful technical service reps. MurCal is open on weekdays and accepting phone calls from 8AM to 4:30PM.
MurCal Products
Articles from our Blog
Irrigation
Irrigation Made Easy With The AgZone™4
How MurCal Makes Life Easier On The Farm
MurCal’s NEW 24T Time Switch Is Coming!
Municipal
Improve Water Operations With An All-Purpose, Highly Configurable Engine Controller
What Is P.I.D. And How Is It Used In The S800 Controller?
MurCal Assisted Contractors And Electricians At The New Pico Rivera Durfee Station.
Best Practices For Natural Gas Engine Driven Pump Station Control Upgrades
As Tropical Storm Hilary Reminds Us, Flood Control Is Crucial!
MurCal’s S800 Control Panel: Ready For The Future
Revolutionizing Remote Monitoring: Discover MurCalMunicipal.Com!
S800'S Control Panel Hardware Part 1 of 3
S800'S Control Panel Hardware Part 2 of 3
S800'S Control Panel for Flood Control Part 3 of 3
Ensuring Crop Protection With The Model 12+H Temperature Sensor
MPC Panels
CAT Retrofit Panel: MPC-20 Auto-Start Replacement Panel
How MurCal Solidified Our Spot As A Reliable Partner In The Wind Machine Industry By Improving Manufacturing Efficiency
Our Wind Machine Solutions
Harnesses and Wiring
MurCal Quality Custom Harnesses
Wiring The MurCal Way
Equipment Repower Solution For FPT N67 Stage V T4 Final Engine
MurCal Develops The PV101 To PV380 Conversion Harness
Why IPC/WHMA-620 Is The Next Big Move For MurCal
Misc Panels, Displays & Software
MurCal’s PV485-MC Displays
MurCal’s J1939 CAN Throttle Control Knob
MLC380 Panel MurphyLink® Series
MurCal’s PV500-MC Nominated For DPS Award!
How MurCal & Pacific Power Group Solved An Obsolete Display Issue For MTU Owners
MLC380 Panel Solution
Unveiling The Power Of MECH Software For Murphy’s PV380 Mechanical/Electrical Engines
SPARK Software Manager: MurCal’s Standard Tool
FAQ
Q. What are your Series 800 Platforms?Many Municipalities use these S800 Panels for their pump/flood/lift Stations. The 800 Series is a Full Featured Municipal Pump Control Panel, designed to work with a multi-engine system. The Series 800 is an all-purpose, highly configurable engine controller, designed to meet the needs of nearly every municipality. The controller is designed to be a municipal-specific control platform and incorporates the necessary hardware to efficiently execute these projects.
Q. What Are The Series 800 Controllers Top Applications?
A: Flood control, sewage lift, well pumping and booster applications for municipal water and sewer districts.
Q: How Can An Engine Controller Help Us Hit Our Emissions Targets?
A: MurCal will tailor your system to record key engine parameters and emission variables which can be logged and remotely transmitted for reporting purposes. The manual or auto start, manual or auto throttling options on our controllers limit engine run time. An optional countdown timer or multiple start/stop times utilizing the internal clock also helps the engine stay within the parameters that keep emissions at a minimum.
Q: Do Your Controllers Work With Both Electric And Mechanical Engines?
A: Yes.
Q: How Do Your 12- Or 24-Hour Time Switches Connect To Your Controllers?
A: Mounted on a post or panel away from engine vibrations, our time switches can be wired for an open or closed circuit when time expires. Operating on a spring, it requires no electrical current to operate and has an SPDT contact arrangement.
DENSO industrial spark plugs withstand the high-temperature / high-load environments of today’s water plants, factories, farms, and oil fields better than any other in the market. Its achieved this distinction due to its patented iridium and rhodium alloy, which performs at the highest engine temperatures, limiting oxidation and voltage wear for more than 100,000 miles. To ensure a complete solution for your application, MurCal also supplies DENSO’s oxygen sensors and VDC starters for transit bus, coach, and off-road equipment, like loaders and cranes. Our experts’ one-on-one phone guidance leads you through whether you need DENSO’s Saver Performer, DDI, or Power® Performance plugs for your unique application. Reach out today! FAQ
Q. What Details Do I Use To Select The Right Spark Plug?Beyond the information that comes with your engine’s make and model information, you should consider factors like dimensions, projection and heat range. Still, the easiest way to get the best-performing spark plugs fast is to call us for one-on-one guidance.
Q: Will My Engine Performance Improve With A Spark Plug Change?
A: An upgrade to iridium spark plugs will improve power output improvements by 5%. A modern engine already equipped with high-performance spark plugs may produce less of an improvement. Overall, the engine should start and run more smoothly.
Q: Do DENSO Spark Plugs Need Thread Lubrication?
A: Since thread lubrication can tighten the spark plug thereby damaging it, we don’t recommend using a thread lubricant.
Q: Does MurCal Have DENSO Spark Plugs For LPG And CNG Engines?
A: Liquid petroleum gas (LPG) and compressed natural gas (CNG) engines require higher performance from a spark plug than gas engines. DENSO spark plugs work on both. Keep in mind that LPG and CNG engines may reduce spark plug life by 25-30%.
Q: How Often Do DENSO Spark Plugs Need Replaced?
A: Check the engine manufacturer's guide for the appropriate replacement interval. DENSO iridium spark plugs last for more than 100,000 miles.
Electrodyne®’s brushless alternator endurance surpasses all competitors. These alternators have been proven to reach 20,000 hours (8 to 10 years) and 1,000,000 miles without service or burn outs. Equipment operators enjoy the lowest cost per hour or mile of any alternator in the industry. Electrodyne’s generous extended warranties reflect their confidence in their engineering. Today’s quality-driven bus and truck manufacturers, and professionals in construction-mining, oil-gas, emergency vehicle, ambulance-fire truck, marine, and railroad industries consider these brushless alternators an investment in reliability and longevity. They know they would use just one Electrodyne alternator in the same time period that two or three from another brand would burn out. As a long-time, responsive Electrodyne distributor, Murcal provides the one-on-one product-selection guidance for manufacturers and equipment operators. Reach out today! FAQ
Q. Are There Warranties On Electrodyne Brushless Alternators?A: Electrodyne offers generous warranties on their alternators. We can discuss the options on warranties when you place your order.
Q: Why Is A Brushless Alternator Better?
A: With very few moving parts - no brush springs or windings - less wear and tear occurs with the brushless alternator. Fewer parts also mean longer life, less maintenance, and less noise. Because brushless motors operate more efficiently than brushed alternators, they save fuel.
Q: How Often Does A Brushless Alternator Need Replaced?
A: High-quality brushless Electrodyne alternators last 20,000 hours or 8 to 10 years depending on use.
Q: How Does A Brushless Alternator Work?
A: Where a brushed alternator uses carbon brushes to conduct electricity, a brushless alternator uses two sets of spinning rotors to generate and transfer the electrical current. Power-driven industry professionals now view the brushless alternator as superior.
MurCal partner Enovation Controls provides exceptional engine controls and instrumentation for the world’s major technology-driven engine and equipment manufacturers. Enovation’s rugged displays, standard controllers, hydraulic controllers, panels, CAN I/O modules, and process monitoring products with sophisticated software development reduce the engineering burden for OEMs and ensure they’re releasing premium, reliable products. We’ve been working with Enovation since 1950 and can answer any questions you may have about implementing these excellent products. Articles from our Blog
EMS PRO & EMS Pro Lite
Murphy PowerCore® Intelligent Xpansion™
Precision Measurement With Murphy’s Temperature Swichgages
TEC-10: Multi-Purpose, Rugged Engine Control For Industrial Applications
Introducing: The OpenView™ Product Family
PowerView™ P70: Setting A New Standard In Rugged Display Controllers
Troubleshooting The Murphy 518PH Tattletale® By Enovation Controls
Understanding IP67: A Guide to Ingress Protection Ratings for Electrical Enclosures
Comprehensive Guide to the WD300 Series Shutdown Panels from Murphy by Enovation Controls
Fuel, Temperature, Pressure, And Voltage Gage FAQs
Q. How Do Fuel, Temperature, Pressure, And Voltage Gages Work?A: Fuel gages rely on a float suspended in the fuel which is connected to a potentiometer. As the tank empties, the float drops and slides a moving contact along the resistor.The indicator unit ( mounted on the dashboard) displays the amount of electric current flowing through the sending unit. When the tank level is high and maximum current is flowing, the needle points to "F" or “full.” When the tank is empty and the least current is flowing, the needle points to "E" indicating an empty tank; some vehicles use the indicators "1" (for full) and "0" or "R" (for empty) instead. When the resistance reaches a certain point, it turns on a "low fuel" light on some vehicles.
Temperature gages operate via a bulb of a mercury-in-glass thermometer or pyrometric sensor. When a temperature change occurs, electrical elements convert this level into a numerical value.
Pressure gages deliver their measurements by comparing the surface area and weight of a column of liquid. A vacuum gauge is a pressure gauge that measures pressures lower than the atmospheric pressure — which is set as the zero point.
Voltage gages measure the voltage that engine or generator batteries put off. Measure voltage across a ground and a positive wire. New engines and generators use voltmeters.
Q: What Are Typical Fuel, Temperature, Pressure, And Voltage Gages Prices?
A: MurCal gages run from around $50 to under $200.
Q: How Long Do Fuel, Temperature, Pressure, And Voltage Gages Last?
A: Given standard use, most customers rely on all gages for at least 5 years.
Throttle And Electronic Motor Controller FAQs
Q: Are Throttle Controllers Bad For Your Vehicles?A: Because throttle controllers do not directly connect with any programming modules and only manage electrical current in the gas pedal, they pose no risk to your vehicle.
Q: Do Electronic Throttle Controllers Work?
A: The gas pedal sends a signal to the electronic control unit which then tells the throttle plate how to behave. These devices help make the vehicle more responsive and give the driver better control over acceleration or deceleration timing. In short, by giving the driver more power, it makes driving more fun.
Q: Do Throttle Controllers Use More Fuel?
A: Because they make driving easier and more responsive, throttle controllers actually help conserve fuel. Both adjustable and solid versions achieve better fuel efficiency too.
Q: What Are Some Electric Motor Controller Advantages?
A: Electronic motor controllers improve the reliability and durability of the motor. They are smaller and lighter, but still deliver the same output as mechanical controllers. The electronic controller’s precision timing translates into accurate torque control and correct speed. These advantages mean the motor runs at peak efficiency.
Industrial Battery Charger FAQs
Q: Why Does The Right Industrial Battery Charger Make A Difference?A: Charging an industrial battery properly helps ensure its longevity. Poor practices can degrade or ruin it. In lead-acid batteries, a quality battery charger with an auto-start feature helps avoid battery sulfation - the most common cause of early battery failure. Proper battery charging eliminates the formation of small sulfate crystals, which reduce your battery’s capacity. Preserve your investment in your equipment with good industrial battery charging techniques.
Q: How Often Should I Use The Battery Charger?
A: A battery is not like a gas tank. You should resist the urge to “top it off.” If your industrial battery shows 75% or 50% power, resist the urge to “opportunity charge.” This practice keeps your battery functioning longer.
Q: When Should I Recharge A Forklift Battery?
A: While you want to avoid opportunity charging, it’s best to recharge a forklift’s battery before it drops below 20% charge. Most batteries have this as the red zone on their gauges.
Q: How Important Is Amp Hour Rating When Choosing An Industrial Battery Charger?
A: Only when you use a battery charger with a compaitble amp hour rating will you avoid sulfated batteries. Murcal experts will make sure your charger’s amp hour rating matches that of your industrial batteries.
Level Instrument FAQs
Q. What Are The Risks Of An Engine Under Lubrication?A: With insufficient oil or oil not of the right weight, the engine experiences increased component wear, higher energy usage, increased operating and maintenance costs. All of these lead to premature engine failure, an expensive mistake. Careful lubrication monitoring ensures long-lasting engines, pumps, cooling systems, and radiators.
Q: What Are The Risks Of Engine Over Lubrication?
A: The effects of overlubrication can be as damaging as those of under lubrication. By lubricating too much, your engine’s energy will decrease and its temperature rise. Both lead to wearing and eventually, seal failure. High temperatures chemically degradation the grease causing oil bleed. Once the oil becomes hard and crusty, it can block new lubrication from reaching the bearing core and burn up the engine. It’s the prevention of “burned up” engines that got Murphy founders Pat and Art Murphy into the industrial parts business in the first place!
Q: What Do Level Maintainers Do?
A: Level Maintainers automatically add oil to crankcases as needed to keep the lube level normal. Equipped with two switches for low and high-level shutdown or alarm, level maintainers protect engines, compressors, pumps and coolers.
Tattletale Annunciator And Magnetic Switches FAQs
Q. How Do Magnetic Switches Work?A: Like relays, magnetic switches close an electrical contact in the presence of a magnetic field. Still, unlike relays, magnetic switches are sealed in glass. Sealed, magnetic switches have the benefits of lower contact resistance, faster switching speed, and longer life. Their encapsulation also eliminates sparking hazards in flammable environments.
Q: What Types Of Magnetic Switches Does MurCal Offer?
A: Models are available to operate from battery power, 120 VAC, conventional magnetos, and capacitor discharge type ignitions.
Q: Are Enovation Controls Magnetic Switches Weatherproof?
A: All models have a weather-resistant case with screw terminals for ease of customer hookup.
Q: When Do The Tattletale Annunciators Trigger Alarms?
A: Various circuits, time delays, and contact configurations are available to match the power source and mode of operation required for alarm only, alarm before shutdown or shutdown only.
Engine Controller FAQs
Q. How Does An Engine Controller Help The Engine?A: A controller gives you full control of your engine including: Auto start/stop functionality, Auto throttling, Engine parameter display & Critical fault display. Our seven controller options have dozens of features intended to promote engine longevity and productivity.
Q: What Harnesses Do Murphy By Enovation Controllers Require?
A: Depending on the unit, Murphy's Industrial Harness or John Deere's OEM engine harnessing is required.
Q: Are Murphy By Enovation Controllers Plug And Play?
A: While most are plug and play, they must be configured to your engine’s specific application.
MurphyLink® And PowerView® Engine And Transmission Displays FAQs
Q. Are The Displays Configured At The Distributor Or On-Site?A: The intuitive screens and sturdy push buttons that come standard on your display makes configuration simple. MurCal experts are ready to step you through the process by phone as well.
Q: How Much Can An Engine Display Be Customized?
A: You can change the shape of the bezel and buttons. You can rework the I/O board to add extra inputs. You can add custom graphics and company branding to the interface. The PowerView displays are also compatible with the PowerVision Configuration Studio™, so custom software configurations can be quickly developed. With the software tool, it’s easy to customize the user-interface – define custom parameters, add custom graphics, on-screen text, OEM branding and more.
Q: What Kind Of Accessories Does MurCal Sell To Make The Displays Operational?
A: MurCal ensures your display works for your system. Our experts guide you to finding the right accessories including wiring harnesses, input/output modules and mounting kits, and interface modules.
Pressure And Vacuum Swichgage FAQs
Q. What Do Murphy Swichgages Monitor?A: These gages monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system.
Q: How Do The Pressure Swichgages Work?
A: Pressure changes at the diaphragm convert to accurate mechanical movements that are indicated on an easy-toread analog dial.
Q: What Pressure And Temperature Swichgage Accessories Are Available At MurCal?
A: For customer convenience, MurCal offers direct mount pressure switches, pulsation dampeners, connector assemblies, service kits, and deluxe hose kits. All can be shipped with the pressure and temperature gages.
Temperature Swichgage FAQs
Q. How Do The Temperature Swichgages Work?A: As temperature rises, the fluid in the sensing bulb vaporizes to apply pressure on the diaphragm. The movement translates this vapor pressure to a calibrated reading of temperature on the dial.
Q: What’s The Difference Between A Swichgage And A Murphygage?
A: Murphygage instruments are more compact, gauge-only models without contacts.
Q: Do Murphy Swichgages Only Measure Engine Temperature?
A: No. Enovation Controls also creates an exhaust pyrometer that indicates high exhaust temperatures before damage can occur. Excessive exhaust temperature occurs when over throttling, a dirty air cleaner, different fuels, a malfunctioning fuel system, change of altitude, an out of tune engine and many other conditions exist.
Q: How Do I Know What Capillary Length I Need For My Temperature Gage And Application?
Use this Sensing Bulb/Scale/Capillary Length Combinations resource.
Murphy Diesel Fuel Shutoff, Check, And Pressure Relief Valve FAQs
Q. How Does A Diesel Fuel Shut-Off Valve Work?A: The diesel fuel shut-off solenoid coil converts electrical energy into magnetic energy that is used to modulate the valve. Once the solenoid coil is activated, a magnetic field draws the pin back, which pulls the stopper back and breaks the seal with the inlet pipe, allowing the diesel fuel to enter the solenoid valve. When the solenoid coil is deactivated, the force of the spring pushes the stopper back into place against the inlet pipe, sealing the pipe and shutting off the flow of diesel fuel to the engine.
Q: How Does A Regular Solenoid Valve Differ From A Diesel Fuel Shutoff Solenoid?
A: Unlike a regular solenoid valve, a diesel fuel shut-off solenoid coil has sensors that receive and interpret electronic signals from the machine's main electrical system. When the sensors detect a problem with a machine’s operations or engine, the electrical signal running to the solenoid coil will automatically shut off.
Q: How Does The Diesel Fuel Pressure Relief Valve Work With The Shutoff Valve?
A: After the SV shutoff valve closes, a rapid high-pressure build-up caused by the fuel pump can occur. The pressure relief valve, mounted in a fuel return line after the filter, will open to relieve pressure buildup.
Tachometer And Electronic Speed Switch FAQs
Q. How Does A Tachometer Work?A: A tachometer uses a magnetic pickup near a rotating engine part to create electrical pulses at a frequency that matches the engine speed. The meter’s circuits convert the pulse frequency for the display of engine RPM using a readout.
Q: Why Does A Tachometer Fluctuate?
A: A common cause of tachometer fluctuation is a dirty or malfunctioning Mass Air Flow (MAF) sensor. A poor connection in the RPM signal wire means missed voltage spikes which can cause the needle to bounce around below the actual RPM reading. When examining the tachometer, look for corrosion, broken wires, or loose connections between the coil terminal and the tachometer.
Q: Is It Bad To Run Your Engine Into The Tachometer’s Red Zone?
A: Pushing RPMs so that the tachometer measures into the red zone (called “redlining”) can lead serious engine damage. A high rpm can damage your transmission over time, even if it is extremely low or high loads. High rpm also wears the bearings and oil seals, which results in faster fluid breakdown.
Get the specific engine management solutions you need to optimize engine and gas compressor performance and protection. Oil and gas industry leaders recognize FW Murphy’s electronic and mechanical production controls as the most durable and economical available. Its custom-engineered gas compressor control panels, turnkey ignition, and air-fuel ratio control systems meet gas compression control needs. FW Murphy’s complete line of fault annunciators, and configurable and programmable control and monitoring systems come bundled with end-devices and instrumentation. MurCal is FW Murphy’s primary distributor and our experts pride themselves on providing the one-on-one product selection guidance for oil field operators.
Articles from our Blog
FW Murphy OPL Series High Quality Pressure Swichgages®
FW Murphy FAQs
Q: Are There Warranties On FW Murphy Products?A: FW Murphy products are covered for a period of two years, unless otherwise stated.Read the entire FW Murphy guarantee here.
Q: Are CAN Wiring Instructions Available?
A: Find all wiring diagrams for CAN communication in control panels here.
Q: How Quickly Can MurCal Get FW Murphy Production Controls To Our Location?
A: MurCal customers rave about how fast they’ve received products ordered. In some cases we can get products to you within two days. Less common products may take a week to arrive. Always discuss shipping speed with your MurCal reps. They will bend over backwards to speed the process so you can resume production.
FW Murphy OPL Series Pressure Swichgage And PXT-R Production Controls FAQs
Q: How Do The OPLC, OPLFC, OPLFG, And OPLBP Models Differ?A: Complete with alarms, shutdowns and start-stop circuits. the OPLC products are suitable for engines or electric motors with appropriate magnetic switch or transformer relay assembly. Both the OPLFC and OPLFC products come will OPLC features except the low limit contact lockout. For these, operators effect lock out externally through the control circuit. The OPLFC is typically used in control panels for compressors, pumps. The OPLBP is specifically designed for start-stop operation of engines and electric motors.
Q: What Is The Output Of The PXT-K Pressure Transmitter?
A: The PXT-K Series pressure transmitters provide 4-20 mA output.
FW Murphy SDB Series Temperature Swichgage® & Thermocouple FAQs
Q. What Is The Warranty On FW Murphy Oil Field Production Controls?A: All FW Murphy production controls manufactured products (determined to be defective in materials and/or workmanship) under normal use, are covered by warranty of TWO years, unless otherwise stated.
Q: What Is The SDB Temperature Swichgage Best For?
A: The SDB temperature swichgage is typically used to monitor gas compressor temperatures.
Q: What Are SDB Series Uses?
A: Oil field professionals use SDB Series to monitor gas compressor temperatures. You can also monitor engine exhaust temperature to avoid overloading or lean fuel mixtures. The SDB also helps coordinate loads on twin-engine installations.
SPL Series 4.5” Surface Mount Temperature Swichgage FAQs
Q. How Long Is The Warranty On FW Murphy Swichgages?A: All FW Murphy products that it determines to be defective in materials and/or workmanship, under normal use, are covered by warranty for a period of TWO years, unless otherwise stated.
Q: How Do The SPL Models Differ?
A: The SPLFC 350P10, 350P20, and 350P30 are all surface mount temperature Swichgage®s with 130-350°F temperature ranges. They only differ in their capillary length which runs from 10 to 30 inches. The SPLFC-350P40 is a panel mount with temperature ranges from 15° to 250°F and 260° to 450°F.
Q: How Do The SPL Series Swichgages Work?
A: SPLC and SPLFC gage temperature indicator gages contain two pilot-duty, pointer-type limit contacts (one for high and one for low). These are used for alarm and/or shutdown. The SPLC and SPLFC models will complete a circuit when the gage pointer and either limit contact meet. The electrical signal alerts the operator of critical temperature conditions or shuts down the equipment. Both limit contacts (high and low) are field adjustable by turning the fingertip-type knob to the desired point on the scale dial.
FW Murphy Level Maintainers And Scrubber Level Switches
Q: Are The Level Maintainers Certified For Hazardous Areas?A: The LM300 Series EX models (explosion-proof) are CSA certified for Class I, Division 1 Hazardous areas.
Q: What Levels Of The Scrubber System Are Available?
A: FW Murphy has electric and pneumatic models.
FW Murphy VS2 Vibration Switch FAQs
Q. Is The VS2EX Certified Explosion Proof?A: Yes. The VS2EX is certified Compliance, Safety, and Accountability (CSA) for Canada and the US for Class I, Division 1, Groups C & D hazardous locations. It is housed in an explosion-proof enclosure with a threaded cover. It is constructed to meet IP54 specifications.
Q: Are Remote Reset Options Available For The VS2 Vibration Switches?
A: Yes. The remote reset option operates with a built-in electric solenoid which allows reset of the tripped unit from a remote location, or hold-in reset during starting. Remote reset is available for both 115 VAC or 24 VDC.
FW Murphy Ignition Controllers & Coils FAQs
Q: Do FW Murphy Coils Work For Other Manufacturer Coils?A: Yes. We offer coils for direct replacement of Altronic coils.
Q: What Is The Advantage Of Using An Ignition Controller For Oil Field And Natural Gas Uses?
A: An ignition controller delivers the precise spark timing that improves fuel economy, load balance and ignition stability.
Q: What Is The SDB Temperature Swichgage Best For?
A: The SDB temperature swichgage is typically used to monitor gas compressor temperatures.
Q: What Are SDB Series Uses?
A: Oil field professionals use SDB Series to monitor gas compressor temperatures. You can also monitor engine exhaust temperature to avoid overloading or lean fuel mixtures. The SDB also helps coordinate loads on twin-engine installations.
FW Murphy Valves, Pulsation Dampeners, Fuel And Gas Shutoffs FAQs
Q. What Is The Difference Between The FW Murphy M5081B And M5081B2 Electromagnetic Fuel Shutoff Valve Models?A: Made for more robust applications, the M5081B-2 FW Murphy electromechanical fuel shutoff valve weights 40 lbs where the M5081B weighs just 14 pounds. Both are 2-inch valves with 2 two NPT connections. Contact MurCal to determine which is right for your application.
Q: What Is A Pulsation Dampener? Is It Different From A Vibration Switch?
A: A pulsation dampener reduces pulsations and vibrations during pump operation to achieve a continuous flow rate and a reduction of vibrations on the system pipes. Use a pulsation dampener to control pipe rattle in the positive displacement pump in your system (hose pump, air-operated diaphragm). A vibration switch applies to engines, compressors, and heat exchangers which are not liquid-dependent.
FW Murphy RDT Series Resistance Temperature Detectors FAQs
Q. Where Can I Find Complete Thermocouple, RTD And RTD Transmitter Specifications?A: For further information, Click Here.
Q: What Is The Difference Between The FW Murphy RTD And RTDT Models?
A: RTDT assemblies transmit process variable temperatures. The RTDTs also accept 2- or 3-wire, 100 ohm RTDs. Also, supply voltage for RTDT must range between 13-40 VDC.
Q: How Do Pyrometers Work?
A: Pyrometer, device for measuring relatively high temperatures, such as are encountered in furnaces. Most pyrometers work by measuring radiation from the body whose temperature is to be measured.
Q: What Are Thermocouples Used For?
A: Thermocouples generally can measure temperatures over wide temperature ranges, inexpensively. At the same time, RTDs are more rugged and therefore more suited to the harsh oil and natural gas sites. RTDs cost more. Also, as they are dependent on electric current to make measurements, RTD’s can be more inaccurate because they self-heat. Thermocouples are known for their versatility as temperature sensors therefore commonly used on a wide range of applications - from an industrial usage thermocouple to a regular thermocouple found on utilities and regular appliance
FW Murphy TDXM-DC Temperature Scanner / Pyrometer FAQs
Q. Is A Pyrometer More Effective Than A Thermometer?A: A pyrometer measures radiation emitted by an object. It measures the temperature of an object by its incandescence or the visible light emitted by a body that is at least red-hot. Because pyrometers can accurately measure high temperatures inside combustion chambers of gas turbine engines, they are most often used in factories. Also called infrared thermometers, pyrometers can measure the temperature of cooler objects as well.
Q: How Many Sensor Inputs Come With The TDXM-DC ?
A: The TDXM-DC accommodates up to 24 either J or K type grounded or ungrounded thermocouples.
FW Murphy Compressor Controls And Annunciator Guidance FAQs
Q. How Do The Annunciators Indicate A Problem?A: Compact Tattletale™ annunciators use a flashing LED indicating which variable malfunctioned. Many models also have a pulsating mini-siren. While you can silence the sound alarm by depressing the alarm silence button, the visual signal keeps flashing until you correct the fault and clear the contacts.
Q: How Will I Know If The Annunciator Is Working?
A: Use the test push button to test all alarm LEDs. Also, you can rely on the longevity of these alarms. Our LEDs are solid state, cold light, electronic devices, and they don’t burn out the way incandescent light bulbs do.
MurCal partner Trombetta leads the world in DC power switching and power management products for mobile equipment. Trombetta engineers and manufactures DC contactors, CAN devices, voltage regulators, industrial solenoids, and more electronic controls. Their innovative engineering has consistently resulted in increased equipment performance for our hard-working municipal, manufacturing, oil field, and agricultural customers. We’ve been working with the Trombetta team for over 20 years and can answer any questions you may have about implementing these excellent products. Articles from our Blog
Trombetta: A Trusted Worldwide Leader In The Electrical/Electronic Manufacturing Industry
Replacing The SD85 With The S500-A60: An Alternative Solution
Keep Your Connections Rugged And Water Tight With Trombetta’s CAN Splitters!
DC Contactor FAQ's
Q.Do I Need A DC Contactor Or A Relay? What Is The Difference Between A Contactor And A Relay?A: Contactors and relays are electrically operated switches used for power control and load switching. Capable of handling up to 1,000 amperes, contactor switches power loads for motors, capacitors, lights — devices that drain very high current. Switching occurs via the energization and de-energization of the contactor coils. Contactors are chosen upon the ampere ratings of the load. Contactors require an additional supply (either AC or DC depending upon the type of contactor we use) for excitation. On the other hand, relays are used for switching of control circuits. They cannot be used for power switching with high ampacity, as their maximum load is 20 ampheres. Given this limitation, they are most often used with switching of small lights, sirens, and indication lamps.
Q: How Do DC Contactors Work?
A: DC contactors are used for making and breaking an electrical power circuit, as in that within an electrical motor. Connecting a high voltage electric motor directly to a programmable logic controller (PLC) risks damage to the PLC cards should a power surge from the motor occur. The contactor’s low voltage coil produces a magnetic field, causing the contactor core to move the armature. When current is removed, the coil is de-energized and opens the circuit.
Industrial Work Solenoid FAQs
Q: How Do Solenoids Work?A: A solenoid converts electrical energy into mechanical work. Composed of a coil of (often copper) wire, a moveable plunger, and housing, when a solenoid picks up an electrical current, a magnetic field forms around the coil, drawing the plunger in. The housing concentrates the magnetic field generated by the coil. The moving plunger does the mechanical work so that an on or off task can be completed.
Q: What Are Typical Industrial Solenoid Prices?
A: Industrial solenoid prices run from $60 to just under $300.
Q: Can Solenoids Be Repaired?
A: Sometimes. Unscrew a solenoid counter-clockwise to remove. If the plunger doesn't move smoothly, it can’t be repaired. Applying oil or lubricant to the solenoid plunger won’t help. A sticking solenoid is not repairable.
Q: How Long Do Solenoids Last?
A: Solenoids typically last from one to three years.
Electronic Controls FAQs
Q: How Do Electronic Controls Work?A: Electrical signals and digital algorithms control receptive, comparative, and corrective functions. Electronic controls depend on sensors (thermocouples, RTDs, or transmitters) installed at the measurement location continuously to transmit signals to it.
Q: Why Do Electronic Throttles Need Controls?
A: Because throttles can be moved irrespective of the position of the driver's accelerator pedal, most equipment and machinery operators rely on electronic controls. Electronic throttle control facilitates the integration of features such as cruise control, traction control, stability control, precrash systems, and other torque-related issues.
Q: Who Invented Electronic Controls?
A: African-American inventor Otis F. Boykin graduated from Fisk University in 1941 and got a job as a laboratory assistant, testing automatic aircraft controls. Boykin’s first resistor led to the less costly but highly reliable manufacture of many electronic devices, including consumer goods and military equipment. His resistor was quickly incorporated into a number of products, including guided missiles, pacemakers, and IBM computers. His devices were implemented in the United States and overseas. Over his life, Boykin earned 25 patents, his last in 1985.
J1939 CAN Bus Input/Output Modules FAQs
Q: How Does The J1939 Module Work?A: J1939 provides a higher layer protocol (HLP) based on CAN as the "physical layer.” It is a standardized method for communication across ECUs, so that all manufacturers have access to and use a common language. It deconstructs, transfers, and reassembles packets across multiple frames.
Q: How Widespread Is The J1939 Protocol?
A: With the Society of Automotive Engineers (SAE) Truck and Bus Control and Communications Subcommittee behind the J1939 protocol, it quickly became the accepted industry standard.
Fuel Shutoff And Throttle Control Cable Kit FAQs
Q: What Is A “Governor-Mounted” Fuel Shutoff Kit?A: A fuel shutoff kit includes a shutoff solenoid — an electromagnetically-operated valve — that remotely cuts the fuel supply to an engine. When the solenoid is energized, its plunger retracts a spring-loaded valve poppet, allowing fuel to pass through. When shut down, the solenoid is deactivated and the valve spring pulls the poppet back, cutting the flow of fuel. The shutoff solenoid is activated either by an operated or an automated engine management system. “Governor mounted” refers to the fact that the fuel shutoff kit is mounted on the engine control. A “governor” is simply a controller.
Q: What Is A Throttle Cable Kit?
A: Also known as an accelerator cable, your machine’s throttle cable is a braided metal wire that connects the fuel pedal to the engine throttle plate. Pressure changes on the pedal changes the speed of the engine.
Q: What Are The Top Signs Of A Failing Throttle Cable Kit?
A: These signs include slow acceleration, rough idle, stalling, and failure in automated response. Upon inspection, you may find the throttle cable is dirty or frayed. A dirty cable can be cleaned, but a frayed cable should be replaced.
Q: How Long Does A Fuel Shutoff Solenoid Last?
A: Solenoids typically last from one to three years.
Q: How Long Does A Throttle Cable Last?
A: Quality throttle cables generally last at least 5 years.
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