
The AirTAC Airtac DMSHS Electronic Sensor DMSHS-PC12 is a genuine DMS magnetic position switch. It senses the magnet ring in a pneumatic cylinder's piston and signals when the piston reaches that point, giving a 2-wire output on 10-28 V DC with a pc12 connection code (confirm from datasheet). It only works on a cylinder that carries a piston magnet.
The DMSHS-PC12 is a solid-state magnetic position switch in AirTAC's DMS electronic family. It senses the piston magnet of an AirTAC cylinder fitted with the magnet option and reports the end position to your controller. Decoded from the ordering code: profile H (groove fit code), PNP 3-wire output, C12 connection code, general type at IP64. Supply range is 5-30 V DC.
Because the output is PNP 3-wire, it sources current into a PLC input and delivers a clean, bounce-free signal with no mechanical contact to wear out. The C12 position of the code is a factory connection variant we will confirm from the datasheet on request. The H profile letter only sets the physical groove fit - match it to your cylinder body before ordering, and confirm the exact seating with our team.
| Model | Airtac DMSHS Electronic Sensor DMSHS-PC12 |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | 2-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | PC12 connection code (confirm from datasheet) |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | H (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
2-wire versions run 10-28 V DC; NPN / PNP 3-wire versions run 5-30 V DC. IP64 as standard. Order the RW version where coolant, washdown or constant cable flexing is present. Switching distance, response time, current rating, voltage drop, LED behaviour, contact life, weight and dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| H | Profile letter: the mounting / groove type that fits a particular cylinder body. This family offers E, G, H, J. It is a fit code, not a performance grade. |
| (blank) | Output: 2-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| PC12 | PC12 connection code (confirm from datasheet). 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| (blank) | Standard version. |
We do not hold the full profile-to-cylinder-series table, so confirm the profile letter against your cylinder model before ordering — send us the cylinder part number and we will check the fit.
The split is electrical, not quality. Solid-state DMS and EMS are DC-only and suit modern PLC inputs; the reed-based CMS switches a much wider window, so it is the one for AC circuits, relay logic and older panels. The RW (IP68) option exists on DMS and EMS only.
| This switch | DMSH · 2-wire · 10-28 V DC |
|---|---|
| Consider EMS | the mini 2-wire electronic switch for tight installations |
| Consider CMS | the reed alternative for AC circuits and voltages up to 240 V |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
On an automated assembly machine, the PNP sourcing output feeds a digital input card directly, flagging clamp-closed status without relay logic.
Solid-state switching with no contact bounce keeps the cycle counter accurate on a robot gripper that actuates hundreds of times per minute.
In a leak-test fixture, the 5-30 V DC output confirms the hold-down cylinder has reached its seat before the test sequence is allowed to start.
Choose this DMS over a CMS reed switch when your circuit is DC and your PLC input card expects a PNP (sourcing) signal. A 3-wire electronic switch avoids reed bounce and suits fast, repetitive cycling, but the polarity must match the input card - P for sourcing, N for sinking. If you prefer to wire it in series like a mechanical contact, pick the plain 2-wire DMS instead. The C12 connection code must be verified against the datasheet before you order. Note the switch does nothing on its own: the cylinder must carry the built-in magnet, and the profile letter must seat correctly in that cylinder's sensor groove.
Quick checklist
Use the F-MQ bracket on round-body cylinders and F-ACT on tie-rod cylinders where there is no groove to seat the switch. Both are ordered separately from the switch. Switching distance and mounting dimensions come from the factory datasheet — ask us for the sheet that matches your cylinder.
It is an electronic (solid-state) switch with a PNP 3-wire output. Supply voltage is 5-30 V DC, protection rating is IP64 (general type), and the connection is by the C12 code, a factory variant we confirm from the datasheet on request. The H profile is the cylinder-groove fit code.
A reed switch has a mechanical contact that can bounce and eventually wears out; a solid-state PNP switch switches cleanly and handles fast cycling. Just make sure your input card is a sourcing (PNP) type - a sinking card needs the N version instead. The cylinder must also be ordered with the magnet option.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, your cylinder model (so we can confirm the profile fit) and the destination. We confirm price, availability and lead time — usually within 7-8 hours.