ifm PN7097 Pressure Sensor, 0 to 1 bar, IO-Link

ifm PN7097 Pressure Sensor, 0 to 1 bar, IO-Link

The ifm PN7097 is the low-range version of the PN70 pressure sensors: it measures 0 to 1 bar (0 to 1000 mbar), where most general-purpose sensors lose resolution. It has a ceramic-capacitive measuring cell, two switching outputs (one with IO-Link), and a four-digit display that can show mbar, psi, kPa or inHg. That wide choice of units is helpful when machinery from different origins sits side by side on the same site.

With a pressure rating of 10 bar and a burst pressure of 30 bar, the PN7097 tolerates short overpressure, but it is not intended for lines whose normal pressure is far above 1 bar. Seven Star LLC supplies the PN7097 in Oman and the GCC as an independent supplier.

PN7097 technical specifications

The table lists the values published by the manufacturer for the PN7097. Where a parameter has several operating modes, the headline value is shown; the full parameter list is in the manufacturer documentation.

How the PN7097 works

Inside the PN7097 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 PN7097 fits and related parts

Use the PN7097 for filter differential monitoring, air handling and ventilation ducts, low-pressure blower discharge, tank blanketing and level by pressure in open vessels. If a vacuum range is needed, the PN7094 measures from -1 to 10 bar, and for hydraulic pressures the PN7092 covers 0 to 100 bar. All three share the same housing, M12 connection and G 1/4 internal thread.

Selection and ordering checklist for the PN7097

Work through the points below before you confirm the order, so that the PN7097 you receive is the one your machine or plant needs.

• Check the operating pressure is well within 0 to 1 bar; the rating is 10 bar, so pressure peaks must not exceed that
• Choose the unit that your technicians read (mbar, psi, kPa or inHg)
• Use liquid or gas media compatible with stainless steel, ceramic and FKM
• Decide whether to retrofit a restrictor, since this version is supplied without an integrated restrictor element
• Plan the cabling and IO-Link master port use

The manufacturer lists this article under the type designation Pressure sensor with display, PN-001BRER14-QFRKG/US/ /V. The article number PN7097 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.

At such a low range, the position of the sensor matters: the static head of liquid in an impulse line changes the reading, so mount it at the same level as the measuring point or compensate the zero. Keep the line dry and free of condensate in gas service, and do not apply compressed air for cleaning through the port.

Typical applications in Oman and the GCC

In Oman and GCC facilities the PN7097 is common for air filter and fan differential pressure in control rooms and substations, burner air supply in boilers and heaters, tank blanketing in petrochemical storage, and pressure monitoring in compressed-air receivers at low set points. Its housing is rated IP65/IP67, suitable for dusty outdoor enclosures, while the ceramic cell stays stable in humid coastal conditions.

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.

PN7097 compared with related ifm types

The table places the PN7097 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 PN7097

To prepare an accurate offer for the PN7097, 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 PN7097 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.