Application Notes

EAP-032056

When You Sell I/P Products, Make Sure You Are Selling "Apples-to-Apples"

One of the most common feedbacks that we get about our current-to-pneumatic transmitters is that they are too expensive for the marketplace. That may be true if you are comparing them to the basic, lower priced brands, but that is not true if you are pricing the instrument on all of its features. The quality of manufacturing and design place it well above any of the competition.

The main difference between M-System I/P transducers, and others in the marketplace is the feedback loop that controls the output pressure signal. The transducer is constantly monitoring output to make sure that it doesn't deviate from the electronic input signal. This means that if the load changes, or the orientation of the transmitter changes, the output will remain stable. If the transducer has an input signal of 20 mA, the output will be 15 PSI (1.0 BAR). Should the load change, then the internal circuit will respond and correct the output. If the unit is calibrated on the bench and then transported to the field, it will still keep its calibration. Most competitors units will experience great changes in calibration depending on there orientation. Some competitors claim that they are orientation insensitive, but they still have some effects. They simple have minimized the mass of the flapper valve to minimize the effects of orientation. I am unaware of anyone else who actually has a built in pressure sensor and electronic feedback.

The other important feature of the M-System I/P product line is the QUALITY!!! You may say, "so what, everybody has quality". That just isn't true, and this is probably the most salient point about this product line. The procurement cost is only part of the cost of owning an instrument.

After the instrument has been installed, there is the cost of calibration, repair, and loss of product due to down time if the instrument fails. In this area, there are no apologies. No one can beat our quality. No one. The cost of ownership of our instruments is lower than anyone else on the market.

This is an easy statement to make, but the proof is in experience. Let me give you one example. M-System sold to a large manufacturing company in Japan, over 1,000 I/P transducers.

They were installed and operational for over three years, and no orders for replacements were received. The company was asked why this was, and they simple said that none of them had failed. Not only had none of them failed, but none of them had required recalibration. As a matter of fact, about half of those HVP and 10VP are almost 10 years old now. Imagine the cost savings in extra equipment, lost product, etc.

M-System has flexible solutions to meet your specific application and requirements. Consult our Signal Conditioners Data Library.