Turck BIM-UNT-AP6X/S97/S1165 T-Slot Cylinder Magnetic Field

BIM-UNT-AP6X/S97/S1165 at a glance

BIM-UNT-AP6X/S97/S1165 is a magneto-resistive magnetic field sensor for pneumatic cylinders with T-groove profiles, with a PNP normally-open output, a 2 m cable and a version listed for temperatures down to -40 C.

Feature list printed by the manufacturer: One-hand mounting possible; Magneto-resistive sensor; Stable mounting; Optional accessories for mounting on other; For T-groove cylinders without mounting; NO contact, PNP output; DC 3‐wire, 10…30 VDC; For temperatures up to -40 °C; Long overtravel range.

Technical specifications

Applications and selection notes

It slides into the T-groove of a cylinder barrel without extra mounting accessories and can be fitted with one hand, the datasheet notes, with optional accessories for other cylinder designs. The sensor detects the piston magnet and gives a stable end-position signal with a long overtravel range, a 1 mm hysteresis figure and a repeatability better than 0.1 mm. This particular type code carries the S97 and S1165 special-version suffixes, so match the whole code when ordering. The cable is listed as 3 mm diameter, grey TPE with 3 x 0.14 mm cores and 2 m length, and a cable clip is included in delivery. The ambient range of -40 to +70 C is what the special-version suffixes buy over the standard type. As the sensor reacts to the piston magnet, confirm that the cylinders on your equipment actually carry one.

During commissioning, move the magnet through its full travel and note where the LED changes state, then compare that point with the rated figure. Tighten fixings only to the datasheet torque, and keep the cable strain-relieved so vibration does not stress the connection.

Selection check before ordering

Ident number 4685735 identifies this exact variant. The datasheet gives the output as 3-wire, NO contact, PNP and the connection as Cable; other housing, output and cable versions carry different type codes and ident numbers.

Before ordering, confirm the connector or cable length, the output type and supply voltage, the ambient temperature range, and the magnet or cylinder type the rated distance refers to. Values on this page are copied or summarised from the manufacturer datasheet; where the datasheet and a later revision differ, the manufacturer document governs.

Installing the sensor in the cylinder T-groove

Before fitting the BIM-UNT-AP6X/S97/S1165, drive the cylinder to the end position that must be detected and keep it there with the air supply safely controlled. Slide the sensor into the T-groove, move it slowly along the barrel until the yellow LED switches, and then fix it a little beyond that point so the signal is stable rather than on the edge of switching. Use the 0.4 Nm figure for the fixing screw; overtightening a plastic PP housing can distort it and shift the switching point.

Lay the 2 m TPE cable along the cylinder and machine frame with the supplied cable clip and other suitable ties, leaving a gentle loop where the cylinder or machine moves. Avoid running the cable over sharp profile edges or next to welding cables and motor leads, where interference and mechanical damage are more likely.

Wiring and commissioning checks

Connect the three wires to a 10 to 30 VDC supply and a PNP-compatible input on the PLC or input module, following the wiring diagram in the datasheet. Keep the load current within the 150 mA rating. With the system powered but the machine in a safe state, cycle the cylinder by hand or in jog mode and confirm that the PLC input follows the LED at both slow and normal speeds.

If two sensors sit on one cylinder, check that each responds only at its own end position. Magnetic fields from neighbouring cylinders, steel brackets or nearby magnets can influence a magneto-resistive sensor, so watch for unexpected switching when adjacent actuators move.

Using the BIM-UNT in hot, dusty and humid GCC sites

The listed -40 to +70 C ambient range and IP67 rating suit many packaging lines, workshops and outdoor skids in Oman, but the temperature at the cylinder surface can be higher than the room air when machines stand in direct sun or near ovens and sealing jaws. Measure the real temperature at the mounting point during the hottest part of the day if the application is close to the limit.

Fine dust and sand can settle in the T-groove and around the sensor. Keep the groove clean during installation, and in washdown or humid coastal areas make sure water cannot collect along the cable and run towards the housing.

Maintenance and troubleshooting

During routine checks, look for cable abrasion, loose clips and sensors that have moved along the groove after vibration or impact. A sensor that switches late or intermittently is often slightly out of position rather than faulty; re-check the setting against the LED before replacing it. Record the final sensor position, for example with a marker on the profile, so that a replacement can be fitted at the same point and the machine returned to service with minimal adjustment.

Documents and quotation

Datasheet: PDF. It is the manufacturer’s own document for BIM-UNT-AP6X/S97/S1165, kept unaltered. To request pricing and delivery, give us the full code BIM-UNT-AP6X/S97/S1165, the quantity and your project reference. Seven Star LLC supplies as an independent supplier in Muscat. Related items sit in Sensors & Transmitters.