Specifications: DPSN1D-01020T is an AirTAC DPS digital pressure switch with two NPN outputs, a −100 to 100 kPa measuring range, bottom electrical connector, 2 m, and a NPT 1/8 male pressure port with an internal 10-32 UNF female thread.
Product Catalog
Download Airtac Product Catalog (PDF)
Download Legacy Airtac Product Catalog (PDF)
Technical specifications and drawings below follow the 2025 DPS catalog, printed pages 254–257. Use the 2025 download for the current drawing revision. The legacy download retains an earlier edition with superseded vibration and mounting data.
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Model Code Explained
| Code |
Meaning for This Product |
| DPS |
Digital pressure switch |
| N1 |
Two NPN outputs |
| D |
bottom electrical connector |
| 01 |
−100 to 100 kPa |
| 020 |
2 m |
| T |
Male NPT 1/8; female 10-32 UNF |
Product Features
- Dual-row LCD displays measured pressure and the selected setting, with configurable red/green backlighting.
- Two switching outputs can each use easy, hysteresis or window-comparator operation, with normally open or normally closed selection.
- Selectable pressure units, display refresh time and output response delay support different machine-control requirements.
- The setting-lock and zero-adjustment functions are available from the front buttons.
- The NPN version supports the catalog’s master/slave parameter-copy function.
Technical Specifications
| Parameter |
Details |
| Working medium |
Non-corrosive gas |
| Measurement range |
−100 to 100 kPa |
| Withstand pressure |
200 kPa |
| Supply |
12–24 VDC ±10%; supply ripple less than 10% peak-to-peak |
| Output configuration |
Two NPN switching outputs |
| Maximum applied output voltage |
30 V |
| Maximum output current |
100 mA |
| Residual output voltage |
Less than 1.5 V |
| Measurement accuracy |
±2% full scale ±1 digit at 25 ±3 °C |
| Repeatability |
±0.2% full scale |
| Temperature characteristic |
±3% full scale, referenced to 25 °C across 0–50 °C |
| LCD display |
Dual row: 4 digits for measured pressure; 3.5 digits for the setting; red/green backlight |
| Display update choices |
100, 250, 500 or 1000 ms |
| Response-delay choices |
2, 20, 50, 100, 250, 500, 1000, 2500 or 5000 ms |
| Adjustable hysteresis |
0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 or 0.8 kPa |
| Pressure units |
kPa, kgf/cm², bar, psi, mmHg, inHg |
| Operating temperature |
0–50 °C |
| Storage temperature |
−20 to 65 °C |
| Relative humidity |
35–80% RH, without condensation |
| Vibration resistance — 2025 catalog |
10–150 Hz; full amplitude 1.5 mm; X, Y and Z directions for 2 hours each, without power |
| Impact resistance |
Maximum 100 m/s²; X, Y and Z directions, 3 times each |
| Electrical entry |
bottom electrical connector |
| Cable option |
2 m |
| Pressure connection |
Male NPT 1/8; internal female 10-32 UNF |
| Protection rating |
The catalog assigns IP63 only to the prewired/grommet type; no IP rating is specified here for this connector version. |
Electrical Connections
| Parameter |
Details |
| Brown wire / positive supply |
Connect to DC supply positive within the rated supply range. |
| Blue wire / negative supply |
Connect to DC supply negative. |
| Black wire |
Switching output 1. |
| White wire |
Switching output 2. |
| Load connection |
For NPN output, connect the load between positive supply and the output; the output sinks current. |
| Protection and restart |
An output load above 100 mA activates short-circuit protection. Remove the fault and restart as directed in the catalog. |
Display, Buttons and Menus
| Parameter |
Details |
| A / B / C |
Up button / SET button / down button |
| D / E |
Measured-pressure display / setting display |
| F / G |
Output 1 indication / output 2 indication |
| H / J |
Power-and-signal connection / pressure inlet |
| Basic menu |
Hold SET for 2 seconds from measurement mode. Set the output mode, NO/NC behavior, response delay and backlight behavior. |
| Advanced menu |
Hold SET for 4 seconds from measurement mode. Hold SET for 2 seconds to return to measurement mode. |
| Backlight selection |
Red with output and green without output; green with output and red without output; always red; or always green. |
| Advanced display settings |
Choose the lower-row setting value, blank display or unit; select display update time and hysteresis. |
| Advanced functions |
Power-saving/backlight setting, backlight trigger OUT1/OUT2/AND/OR, copy setting where supported, and factory reset. |
| Zero adjustment |
Press the up and down buttons together. |
| Setting lock |
Up + SET locks the settings; down + SET unlocks them. LCK is displayed when a button is pressed while locked. |
Switching Modes
| Parameter |
Details |
| EASY mode |
A single setpoint is used with the selected hysteresis. In the normal output diagram the output switches on above the setpoint plus hysteresis and off below the setpoint. |
| HYS mode |
Separate upper and lower thresholds set the switching band. In the normal output diagram the output turns on above the upper threshold and off below the lower threshold. |
| WCMP window-comparator mode |
The normal output diagram is active within the selected lower/upper pressure window and inactive outside it, with hysteresis at the boundaries. |
| NO / NC selection |
Each output can use normally open or normally closed behavior. The selected logic determines whether the indicated switching state is inverted. |
NPN Parameter Copy
Only the NPN type supports the copy function. With power off, connect the master and slave as shown in the catalog’s dedicated copy diagram, including the master pin 2 to slave pin 3 connection. Select CP-M for the master and CP-S for the slave, then carry out the copy sequence. Check the completion display; if copying fails, repeat the sequence. Power off before disconnecting the copy wiring and restarting normal operation. Use the connection and pin labels in the diagrams; the ordinary operating circuit and temporary copy circuit serve different purposes. The published copy diagram and normal operating circuit use different negative-wire color labels. Confirm the temporary copy wiring for the supplied unit with AirTAC before making that connection; do not infer it from the wire color alone.
Mounting Accessories — Ordered Separately
| Parameter |
Details |
| F-DPSDEB |
Panel-mount adapter for this bottom electrical-connector version; the 2025 drawing specifies a square 35.5 ±0.3 mm panel cutout and panel thickness 1–5 mm. |
| F-DPSLB |
Mounting bracket for the DPS sensor; the 2025 drawing shows 29.6 mm upright width, 24 mm upright height, two Ø3.2 mm mounting holes and 1.6 mm plate thickness. The bracket is an installation accessory and is not included merely by ordering the sensor. |
| Assembly sequence |
Install the panel accessory first, then the sensor, for the bottom-connector type. |
Installation and Operating Notes
- Do not drop the sensor or subject it to impact.
- Do not apply more than 60 N tension to the cable.
- Tightening torque at the pressure connection must not exceed 7 N·m.
- Do not use corrosive or flammable gases or liquids.
- Keep pressure within the specified range.
- Turn the power off before wiring.
- Avoid oil and solvent splashes.
- Separate signal wiring from high-voltage cables and conduits.
- After an output fault or overload, correct the cause before restarting.
- Where transient pressure produces an unwanted response, select an appropriate response delay.
Dimensions and Mounting
Dimensions are in millimeters. The D version’s bottom feature is its electrical connector; the pressure connection remains the threaded connection shown at the rear. Mounting accessories are ordered separately.
| Parameter |
Details |
| Sensor face |
30 × 30 mm |
| Body depth |
28.6 mm |
| Overall depth including pressure connection |
47.6 mm |
| Pressure-connection local length |
7 mm |
| Mounting threads |
2 × M3 |
| Mounting-hole spacing callout |
20 mm |
| Rear-view local offset |
12 mm |
| Pressure thread |
Male NPT 1/8; female 10-32 UNF |
| Bottom electrical-connector projection |
12.4 mm below the sensor body |
| Bottom-connector width |
20 mm |
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Estimated Weight
Approximate engineering estimate: 85 g, excluding packaging. The calculation uses 43 g for the sensor body, an effective four-core lead allowance of 21 g/m for 2 m, and 0 g for an additional M8 connector, which is not part of this option. The lead allowance comes from a published 85 g versus 43 g comparison for a 2 m lead assembly on a similarly sized pressure switch; it is an allocated reference including that lead assembly’s connector, not a published AirTAC cable density. These are cross-model weight estimates, not AirTAC catalog or measured weights. Housing, connector, cable and thread differences are not individually weighed. No compatibility or technical equivalence is implied. Brackets, separately ordered extension cables and packaging are excluded.
Optional Piping Accessories
O = the rear sensing boss’s external male NPT1/8; use an exact matching female connection. I = the same boss’s internal female 10-32UNF; use an exact matching male connection. O and I are alternative ways to connect one measured-pressure source: select one, not both. They are not flow-through inlet/outlet or pilot ports. The separate M3 mounting holes are not pneumatic connections. Multiple keys retain each use. Tube OD is mm (in = inches); compression/tubing show OD × ID. These piping accessories are optional and ordered separately.
Code-prefix uses (match the longest listed family prefix): NBD male–female; NBKC straight locknut connector; NBPC metal male straight connector; NBPCF metal female straight connector; NBPMF metal female bulkhead connector; NBU double female straight coupling; NPC male straight connector; NPCF female straight connector; NPEB male branch tee; NPED male run tee; NPH male banjo elbow; NPHF male/female branch banjo fitting; NPL male elbow; NPLF female elbow; NPLL extended male elbow; NPMF female bulkhead connector; NPYB male branch Y; NUE polyurethane tube.
| Use |
Size / complete codes |
| O (discontinued) |
male NPT1/2 ↔ female NPT1/8: NBD1/8-1/2
male NPT1/4 ↔ female NPT1/8: NBD1/8-1/4
male NPT3/8 ↔ female NPT1/8: NBD1/8-3/8
NPT1/8 female / 1/4 inch OD: NBPCF1/4-1/8,NBPMF1/4-1/8
NPT1/8 female / 5/16 inch OD: NBPCF5/16-1/8,NBPMF5/16-1/8
NPT1/8 female / 5/32 inch OD: NBPCF5/32-1/8,NBPMF5/32-1/8
NPT1/8 female / NPT1/8 female: NBU1/8-1/8
1/4 in; male RA NPT1/8 / female RB NPT1/8: NPHF1/4-1/8
5/16 in; male RA NPT1/8 / female RB NPT1/8: NPHF5/16-1/8
5/32 in; male RA NPT1/8 / female RB NPT1/8: NPHF5/32-1/8 |
| I (discontinued) |
5/32 × 3/32 in; male #10-32UNF: NBKC5/32-3/32-U10
1/4 in; male #10-32UNF: NBPC1/4-U10,NPH1/4-U10,NPLL1/4-U10
5/32 in; male #10-32UNF: NBPC5/32-U10,NPH5/32-U10,NPLL5/32-U10
1/4 in tube socket; male RA #10-32UNF / female RB #10-32UNF: NPHF1/4-U10
5/32 in tube socket; male RA #10-32UNF / female RB #10-32UNF: NPHF5/32-U10 |
| I |
1/4 in; male #10-32UNF: NPC1/4-U10,NPL1/4-U10
1/8 in; male #10-32UNF: NPC1/8-U10,NPL1/8-U10
5/32 in; male #10-32UNF: NPC5/32-U10,NPL5/32-U10
2 × 1/4 in tube sockets; male #10-32UNF: NPEB1/4-U10,NPED1/4-U10,NPYB1/4-U10
2 × 5/32 in tube sockets; male #10-32UNF: NPEB5/32-U10,NPED5/32-U10,NPYB5/32-U10 |
| O |
NPT1/8 female / 1/4 inch OD: NPCF1/4-1/8,NPLF1/4-1/8,NPMF1/4-1/8
NPT1/8 female / 3/8 inch OD: NPCF3/8-1/8,NPLF3/8-1/8,NPMF3/8-1/8
NPT1/8 female / 5/16 inch OD: NPCF5/16-1/8,NPLF5/16-1/8,NPMF5/16-1/8
NPT1/8 female / 5/32 inch OD: NPCF5/32-1/8,NPLF5/32-1/8,NPMF5/32-1/8 |
| I,O |
5/32 × 3/32 in: NUE95A5/32X3/32-100BK,NUE95A5/32X3/32-100BR,NUE95A5/32X3/32-100BU,NUE95A5/32X3/32-100C,NUE95A5/32X3/32-100CB,NUE95A5/32X3/32-100CE,NUE95A5/32X3/32-100CG,NUE95A5/32X3/32-100CR,NUE95A5/32X3/32-100CY,NUE95A5/32X3/32-100GA,NUE95A5/32X3/32-100GE,NUE95A5/32X3/32-100GN,NUE95A5/32X3/32-100R,NUE95A5/32X3/32-100WH,NUE95A5/32X3/32-100Y,NUE95A5/32X3/32-250BK,NUE95A5/32X3/32-250BR,NUE95A5/32X3/32-250BU,NUE95A5/32X3/32-250C,NUE95A5/32X3/32-250CB,NUE95A5/32X3/32-250CE,NUE95A5/32X3/32-250CG,NUE95A5/32X3/32-250CR,NUE95A5/32X3/32-250CY,NUE95A5/32X3/32-250GA,NUE95A5/32X3/32-250GE,NUE95A5/32X3/32-250GN,NUE95A5/32X3/32-250R,NUE95A5/32X3/32-250WH,NUE95A5/32X3/32-250Y,NUE95A5/32X3/32-500BK,NUE95A5/32X3/32-500BR,NUE95A5/32X3/32-500BU,NUE95A5/32X3/32-500C,NUE95A5/32X3/32-500CB,NUE95A5/32X3/32-500CE,NUE95A5/32X3/32-500CG,NUE95A5/32X3/32-500CR,NUE95A5/32X3/32-500CY,NUE95A5/32X3/32-500GA,NUE95A5/32X3/32-500GE,NUE95A5/32X3/32-500GN,NUE95A5/32X3/32-500R,NUE95A5/32X3/32-500WH,NUE95A5/32X3/32-500Y |
These passive connections and tubes are optional and ordered separately for a clean compressed-air pressure-sensing line. Select either O or I at the single rear sensing boss. Do not connect separate pressure sources to O and I, use the sensor as a through-flow device, or assign either connection as a pilot or exhaust port. Keep every branch of a selected fitting on the same measured-pressure source.
The positive-pressure limit for this DPS range is 0.1 MPa; operate the sensor and complete connection path within 0–50°C and every stricter fitting or tube limit. Its 0.2 MPa withstand pressure is not a working rating. These accessory selections cover positive-pressure air only. The sensor’s negative-pressure measurement range does not establish vacuum suitability of the assembled fittings, seals and tubing; verify the entire path before vacuum service. Do not use liquids or corrosive or flammable gases. Other non-corrosive gases require confirmed sensor and complete-path material and application compatibility and are outside these air selections.
Match exact thread standard, size and opposite gender. Use the specified thread seal or face gasket and check engagement, sealing, clearance, tool access and support without obstructing the sensing passage. Follow the sensor’s original installation instructions, including the 7 N·m pressure-connection ceiling, and any lower fitting-specific torque; 7 N·m is not a tightening target for every fitting. Depressurize before disconnecting.
Match tube OD and, for compression fittings, OD/ID; metric and inch sizes are not interchangeable. Use the specified soft nylon/PU tube and check full insertion, seating and bends. Support tubing and fittings so their loads do not twist the sensor. Put the compression cap over the tube, seat the tube in the body and tighten the cap as specified; loosen it before removal and use a wrench on the body’s hex flats.
NPCF/NPLF/NPMF/NBPCF/NBPMF have female pneumatic threads for the external male O connection; their tube sockets are separate connections. On NPMF/NBPMF bulkhead fittings, panel-mounting threads and retaining nuts are not pneumatic ports. Check panel thickness, washer/nut seating and support.
NPHF fittings have male RA, female RB and a separate tube socket. For role I, the fitting’s male RA mates with the sensor’s internal female thread; for role O, the fitting’s female RB mates with the sensor’s external male thread. Use only the role and exact end size listed for that code. Connect the remaining threaded end to its own matching opposite-gender part and seal, keeping it on the same measured-pressure source. A fitting’s RB is not a tube socket.
Match both adapter ends independently by size, gender and thread standard. NBD first size is female RB, which mates with O; the second is male RA, requiring a separate matching female part. NBU are female-to-female couplings; after connecting one end to O, the other needs a separate matching male part. These parts do not convert PT to G, NPT or M5, and do not authorize plugging the active sensing connection.
Standard plastic push-in fittings: ≤1 MPa, −20–70°C. NBPC/NBPCF/NBPMF/NBKC/NBD/NBU: ≤1 MPa. The listed metal push-in, compression and threaded-adapter groups have a 0–150°C component range. These are component limits, not an extension of the DPS range; use the lower pressure and narrower temperature range of the sensor, every fitting and tube.
U10 means male #10-32UNF for the internal I connection; it is neither M5 nor tapered NPT. Use the fitting’s specified gasket or confirmed sealing arrangement. The listed U10 plastic fittings and NBPC are rated 0–1 MPa with 1.5 MPa proof pressure; NBKC is rated 0–1 MPa with 3 MPa proof pressure. Their published 10 Torr (−750 mmHg) negative-pressure value is a component rating, not validation of the complete sensing assembly or its tubing under vacuum. Proof pressure is not working pressure.
NBKC5/32-3/32-U10 specifies 5/32 in OD × 3/32 in ID in its complete model and dimension row. An ordering-matrix ID entry differs; confirm the 3/32 in ID and sealing arrangement with the supplier before selecting the tube. Do not substitute an inferred 5/32 in ID model. Each NPEB, NPYB or NPED U10 fitting has two sockets of the stated equal OD; both remain on the selected pressure-sensing line.
The listed NUE95A tubes serve either O or I only through a listed exact 5/32 in OD connection, according to that code’s assigned role. They do not connect directly to a sensor thread. Match a compression connection’s ID as well. Do not substitute 4 mm, 3.2 mm, 3 mm or 1/8 in OD tube.
NUE95A5/32X3/32 is ether-based PU, Shore A95±2, with 5/32 in OD × 3/32 in ID and 1/32 in wall. Working pressure is 145 psi at 73°F; 363 psi is burst pressure, not a working rating. Temperature range: −40–158°F; minimum bend radius: 8 mm. Derate with increasing temperature and obey every stricter sensor, fitting and tube limit.
In NUE codes, 100/250/500 after the hyphen are coil lengths in feet, not metres. Colours: BU blue, BK black, GE orange, C clear, WH white, CB clear blue, R red, Y yellow, GA gray, GN green, BR brown, CR clear red, CG clear green, CY clear yellow, CE clear orange. Match the complete length-and-colour code. Current lifecycle and supply of these catalog-listed tubes are unverified; confirm the exact item or an approved replacement before ordering.
Items marked discontinued are historical service references, not current standard recommendations. Confirm availability or a manufacturer-approved replacement. An unmarked catalogue entry does not promise current production, stock or delivery.
