Auto-Idle – PS61 Series Pressure Switch from Gems Sensors & Controls

DCS Auto Idle PS61 Series Switch from Gems Sensors and Controls 1 400x275

October 3, 2022


As emissions regulations continue to get stricter, OEMS are looking for ways to meet or beat the specifications to ensure that their equipment is in compliance. One of the largest adders to emissions is idling gas/diesel-powered equipment. As an operator is using a machine, they will increase the idle RPM so that there is plenty of power on the PTO (Power Take Off). Having this extra power allows the machinery to operate efficiently and without strain.

But there are times that the operator might be occupied with another task, or they might jump off the machine to address another issue. Having the piece of equipment running at a high idle adds un-needed emissions into the atmosphere. It also consumes more fuel and increases engine noise levels.

To prevent this from happening, the ECM (Engine Control Module) monitors the pressure in the hydraulic system controlling the PTO. If there is demand on the PTO (for example, the operator is picking up a tree trunk), pressure in the system will be high and the ECM allows the engine to idle at a high rate. But if the operator is not using the PTO, pressure in the system will be low, the ECM sees that it is low, and the ECM will lower the idle down to a lower level.

This process is called “Auto-Idle” or “Automatic Idle Down”. A pressure switch is required to monitor the pressure in the PTO system and send a signal to the ECM.

DCS Auto Idle PS61 Series Switch from Gems Sensors and Controls 2 1128x300


Application Challenge:  

Finding a rugged pressure switch that can provide an accurate signal when used heavily in an aggressive environment and withstand a high number of cycles. 

The switch can see a high number of cycles during use. The switch will be activated and deactivated every time the PTO is used and when other demands are placed on the PTO/Hydraulic system. Also, being directly tied into the hydraulic system, high-pressure spikes can be seen by the sensor.  Mounted on outdoor/farm equipment, the pressure switch required will need to be able to handle the shock, vibration, heat, and water spray to survive. 

Application Solution: 

The redesigned PS61 Series Pressure Switch has been designed and tested to survive for over 2,000,000 cycles so that the operator can be assured that their equipment will have a long life. This is critical in outdoor OHV applications. 

The PS61 Series Pressure Switches also has been extensively tested to withstand up to 7,000 psi (483 bar) of pressure without incurring any type of damage. Also, MIL-STD 202G testing for vibration and shock has been achieved. The electrical connection back-ends have been designed and tested to IPX7, IPX9K, and IP6KX so that they are resistant to dust, high-pressure/high-temperature wash-down, as well as submergence

Adding the PS61 Series Pressure Switch to your forestry equipment application is a major asset to ensure your equipment will reduce emissions, consume less fuel, and reduce engine noise levels. 

DCS Auto Idle PS61 Series Switch from Gems Sensors and Controls 3 700x300

Features of the Gems PS61 Series Pressure Switch: 

  • •Exceptional Long-Term Stability = No need for costly field calibration or replacement 
  • •Operates over 2,000,000 cycles = long life without need for replacement
  • •Sealed to IPX7, IPX9K, and IP6KX = heavy water spray, power-washing, submergence
  • •Computer Controlled Calibration = High 1:1 Interchangeability from unit to unit 
  • •Passes MIL-STD-202G Vibration, Shock, and Free Fall test = Rugged design to handle excessive shock and vibration conditions 
  • •Industry-standard pressure port options = will work in most applications
  • •Industry-standard electrical connection options = will work in most applications


Adjacent Products:


To learn more about the PS61 Series Pressure Switch from Gems Sensors & Controls, download the Product Catalog by clicking here, or visit the Product Page by clicking here

Gems Sensors and Controls Logo 300x150





Related Articles

  • New G2RV-ST And G3RV-ST Relays from Omron

    New G2RV-ST And G3RV-ST Relays from Omron

    Omron’s New G2RV-ST And G3RV-ST Relays Are Among the Fastest in the Industry That Provide Better Visibility, Top-Notch Reliability, and Vibration Resistance January 23, 2023 Speedier relays are a key requirement in today’s fast-paced manufacturing industry, and Omron responded to this need with the new ST relays that are among the fastest available on the… Read More…

Editor’s Pick: Featured Article

Conserving Power and CO2 Emissions with Premium Efficiency Motors

The process of converting electrical energy to mechanical energy is never perfect. As much as we would like to have a 100% efficient motor, it is impossible to build a machine that will take 746 watts of electricity (the equivalent of 1 Hp) and convert it to 1 Hp of mechanical output. It always takes somewhat more than 746 watts to yield 1 Hp’s worth of output.

Motors are continuously being pushed to be more efficient and reduce these losses. Over the years the guiding regulations of motor manufacturing have pushed us to improve efficiencies to new levels to reduce the considerable global power consumption of motors, as they are everywhere. From our factories, utilities and homes and most anywhere you can think of.

How much power consumption aka money are you spending that you do not have to? Take a minute while having your coffee to see if you can save money.

Read More

Latest Articles

  • Proportional Valve Technology Makes it Possible

    Twin-piston pump glues folding boxes highly precisely January 30, 2023 Proportional valve technology makes it possible. The sustainability of cardboard packaging is leading to its increasing use instead of plastic packaging. A key step in the manufacture of folding boxes is the highly precise gluing of the box blanks. The company Baumer hhs is a… Read More…

  • 5 Tips for Using Servo Drives in Exoskeleton Robots

    January 30, 2023 Exoskeleton robots are wearable augmentative devices that enhance the physical capabilities of their human wearers. Offering the ability to combine human intelligence and control with the strength and durability of a robot, they can be used for gait rehabilitation or locomotion assistance, offering many applications in industry, medicine, and more.1 However, developing… Read More…