SL Series Linear Sensor FAQs
Can the sensor be run dry, i.e. on the gas side of an accumulator? | |
Yes, the sensor is designed to run either on the gas sided or the oil side of the accumulator. Consult factory for recommendations specific to gas or oil operation. | |
Do oil vapors or other airborne contaminates affect the operation of the sensor? | |
Since the core sensor is a non-contacting technology, there are no concerns with regard to films or oxidation. | |
What is the pressure rating of the enclosure? | |
The standard enclosure has a working pressure rating of 5,000 psi. | |
What type of output does the sensor produce? | |
The sensor can be operated with any standard signal conditioner. Outputs of 0-5V, 0-10V, and 4-20mA are most common. Magnetostrictive-based sensors are available with virtually any output, including CAN Bus. | |
How long can the flexible conduit be? | |
There is no practical length to the flexible conduit. However, consideration must be given to reduction in cable velocity due to drag; drag is significantly reduced if the sensor is installed on the fluid side. (Ref PN SL0390) | |
How much can I bend the flexible conduit? | |
The bend guidelines for the Teflon-lined conduit are the same as standard SAE 100 R16 hydraulic hose, with a MBR of 3.5 inches. (Ref PN SL0390) | |
Is there a wear or drag penalty for bending the flexible conduit? | |
In oil, no penalty; in gas (dry) applications, some reduction of cycle life should be expected with long runs and bends. Bending the conduit in dry (gas-side) installations will increase drag and wear of the conduit liner, but still yield a cycle life of 20,000 to 40,000 full cycles. Pre-lubricating the conduit can increase the cycle life. Straight conduit installations in dry environments have no drag or wear considerations. In high-cycle applications requiring long conduits with bends, it may be preferable to install on the oil side, where the conduit is continuously lubricated. (Ref PN SL0390) | |
What are the cycle life limitations? | |
The core sensing technology is non-contacting, which has unlimited cycle life. All SL Series sensors have been tested to a minimum of 1 million full stroke cycles under various conditions, including dry installations. Mechanical components of the sensor are designed for multiple millions of full-stroke cycles | |
Are dither cycles a problem? | |
Non-contacting LVDT is immune to dither wear. Extreme dither applications should be tested prior to field deployment. | |
How fast does the cable recoil? | |
Our test facility has a maximum velocity of 80 inches/second, which, the sensor is capable of tracking. Factors which will affect cable speed include conduit length, conduit bends, fluid type and temperature. | |
What if the oil surrounding the sensor is frozen solid? | |
Like most hydraulic system components, the CPI sensor will not operate in a solid medium. | |