ifm PN7092 Pressure Sensor, 0 to 100 bar, IO-Link

ifm PN7092 Pressure Sensor, 0 to 100 bar, IO-Link

The ifm PN7092 is the high-pressure member of the PN70 series: a display pressure sensor for 0 to 100 bar with a pressure rating of 300 bar and a burst pressure of at least 650 bar. That large overload margin makes it a sensible choice for hydraulic power units, press circuits, injection lines and other systems where pressure peaks are normal. It has two switching outputs, one of them with IO-Link, and a red/green four-digit display that shows at a glance whether the process is inside the set window.

The article is listed by the manufacturer as being for liquids; use in gases above 25 bar only on request. Seven Star LLC supplies the PN7092 as an independent supplier in Oman and the GCC, and the ordering reference is PN7092.

PN7092 technical specifications

The table lists the values published by the manufacturer for the PN7092. Where a parameter has several operating modes, the headline value is shown; the full parameter list is in the manufacturer documentation.

How the PN7092 works

Inside the PN7092 a ceramic-capacitive measuring cell converts process pressure into a small change in capacitance. The electronics linearise that signal, compensate for temperature and compare the result with the switch points you have stored. The red/green four-digit display shows the live value in the unit you select, while two yellow LEDs mirror the state of the two outputs. Because the cell is ceramic and the wetted parts are limited to stainless steel, ceramic and FKM, the same sensor handles liquids and gases without an isolating diaphragm. One output can run in IO-Link mode, which lets a controller read the pressure as process data and push parameters back to the sensor after a replacement.

Where the PN7092 fits and related parts

Compared with the PN7094 (-1 to 10 bar) and the PN7097 (0 to 1 bar), the PN7092 is intended for hydraulic and high-pressure liquid circuits. For a plain 4 to 20 mA signal without display, the PT5400 (0 to 400 bar) or PX3224 transmitters are the alternatives, while the PN7092 is chosen when local indication and two switching points are wanted next to IO-Link process data.

Selection and ordering checklist for the PN7092

Work through the points below before you confirm the order, so that the PN7092 you receive is the one your machine or plant needs.

• Confirm the medium is a liquid; for gases above 25 bar, ask before ordering because the manufacturer limits this
• Choose the range with headroom: normal pressure should sit in the middle of 0 to 100 bar, not at the end
• Check the thread: G 1/4 internal, so the mating fitting needs a matching male thread and a seal
• Ensure that surge pressures stay under the 300 bar rating
• Decide on the use of IO-Link and the switching logic (normally open or closed)

The manufacturer lists this article under the type designation Pressure sensor with display, PN-100-SER14-QFRKG/US/ /V. The article number PN7092 is the reference to quote when ordering, and the type designation is useful for technicians who compare the label on an installed unit.

Installation, commissioning and maintenance

Fit the sensor with a suitable sealing washer or O-ring for the thread form and tighten within the torque window printed in the table; over-tightening a ceramic cell is a common cause of zero shift. Mount it so that the connector points downward or sideways, which keeps condensation from running into the M12 interface, and rotate the process connection to align the display before final tightening. During commissioning set the unit, then the switch points and hysteresis or window, and decide whether each output is normally open or normally closed. Check that the supply stays inside 18 to 30 V DC under load. For maintenance, a periodic zero check against atmosphere on a vented line and a look at the connector for moisture are normally enough. In pulsating systems such as piston pumps, a restrictor or damper protects the cell and steadies the reading.

On hydraulic lines the sensor should sit after a snubber or restrictor where pressure pulsation is heavy, because fast spikes shorten the life of any pressure cell even when the overload rating is high. Torque the fitting within the 25 to 35 Nm window listed by the manufacturer, and bleed the line before checking the zero.

Typical applications in Oman and the GCC

Typical uses in Oman and the GCC include hydraulic power units on wellhead and valve actuator skids, lube-oil and seal-oil systems on compressors and turbines, high-pressure washdown and injection pumps in desalination plants, and test benches in workshops. The device tolerates ambient temperatures up to 80 degrees Celsius, which helps in skids standing in direct sun, and it is resistant to the vibration found on pumps.

Pressure instruments in the Gulf face heat on sun-exposed skids, fine dust and salty humidity. Stainless steel wetted parts, a sealed M12 connection and a conservative pressure margin are the three things that decide service life. Mount the sensor out of direct sun where possible and keep the connector pointing down.

PN7092 compared with related ifm types

The table places the PN7092 next to neighbouring types in the same application group, so you can see whether a sibling would suit the job better.

Information to send with an RFQ for the PN7092

To prepare an accurate offer for the PN7092, please include the following with your enquiry:

• Required pressure range and whether the process is gauge, vacuum or compound
• Medium, temperature range and any pulsation or pressure spikes
• Process thread and the sealing material you need
• Connector or cordset requirements and the cable length
• Quantity, delivery location and whether IO-Link master ports are available

Documents and quotation

No datasheet is attached to this page. Send us the part number PN7092 and we will confirm which documents are available, such as the datasheet and operating instructions, and for IO-Link devices the device description file.

Seven Star LLC is an independent supplier in Muscat serving Oman and the GCC and is not affiliated with the manufacturer; the name ifm is used only to identify the product. Prices are not shown on the page, so send the part number, the quantity and the delivery location to receive a quotation.