Product Overview
The general-industrial pressure transmitters are WIKA-ST’s electronic-pressure workhorses — the high-volume, broad-range transmitters for steady process pressure. The WIKA A-10 covers 0–1 to 0–10,000 psi at 0.5% of span (0.25% optional) with 4–20 mA, 0–10 V, or 0–5 V output; the higher-accuracy S-20 runs 0–10 to 0–20,000 psi and takes non-linearity down to 0.125% of span on its high-accuracy option; and the rugged tecsis-origin XPI-1A is the industrial 4–20 mA build to 10,000 psi with 17-4 PH stainless wetted parts and 300%-of-rated burst. All read straight into a PLC or DAQ with the conditioning built in, on short lead from stocked components. The tecsis XPI platform extends the family by output and range — the XPI 1A/1U/1V output variants, the high-range XPIH to 60,000 psi for fracking-grade and hydrostatic-test service, and the precision XPA-1U at ±0.05% FSO for calibration and R&D. Have a legacy tecsis part number for this measurement? Send it — WIKA acquired tecsis and now ships these under WIKA Sensor Technology, and we cross-reference the tecsis p/n to the current WIKA-ST equivalent at the same spec.
The tecsis XPI platform — output, range and accuracy variants
The rugged XPI transducer is one 17-4 PH stainless platform — PA–PD process ports, a PTIH-10-6P connector, and 0.05% repeatability — that you spec by output, by range band, and by accuracy class. Pick the nameplate that fits; the mechanicals stay put.
- 1A 4–20 mA, 1U 2 mV/V, 1V 0–5 V
- the mV/V 1U adds a ±0.10% FSO high-accuracy class and a −100 to +325°F range
- 150% proof / 300% burst
- same three outputs; integral high-pressure fitting
- for fracking-grade and hydrostatic-test service
- 125% proof / 170% burst
- ±0.05% FSO (BFSL) — the reference-accuracy member
- 2 mV/V, amplified output optional; thermal effects ±0.0015%/°F
- for calibration standards and R&D benches
Key Features & Benefits
- The general-purpose workhorse — broad range, short lead — these are the high-volume electronic-pressure transmitters: a wide pressure range, the common industrial outputs, and a rugged all-stainless body, built from stocked components on a short lead. The default choice for steady process pressure, in stock and proven.
- Reads straight into a PLC or DAQ — an amplified 4–20 mA or voltage output has the conditioning built in, so it wires into a PLC or indicator with no bridge card — and 4–20 mA rides long, noisy industrial cable runs cleanly. No signal-conditioning hardware to add at the panel.
- A grade for every budget and tolerance — step from the value-grade A-10 to the high-accuracy S-20 (to 0.125% of span) without leaving the family, and reach for the rugged XPI-1A where the build has to take abuse. Pick the accuracy and ruggedness the job needs, not a one-size transmitter.
Specifications
- Sensing principle
- Strain-gauge / thin-film pressure sensing in a rugged all-stainless body — the general-purpose electronic-pressure workhorses. The WIKA A-10 and S-20 are the current catalog transmitters; the tecsis-origin XPI-1A is the industrial 4–20 mA build.
- Pressure type
- Gauge and absolute (A-10); the XPI-1A is offered as gauge (psig) or absolute (psia).
- Measuring range
- A-10: 0–1 to 0–10,000 psi (0…0.05 to 0…1,000 bar). S-20: 0–10 to 0–20,000 psi (0…0.4 to 0…1,600 bar). XPI (1A/1U/1V): 0–25 to 0–10,000 psi, gauge or absolute; the high-range XPIH extends the same platform to 0–15,000 to 0–60,000 psi.
- Accuracy
- A-10: non-linearity 0.5% of span standard, 0.25% optional (BFSL). S-20: 0.25% standard, down to 0.125% on the high-accuracy option (BFSL). XPI: linearity ±0.15% FSO (the mV/V 1U offers a ±0.10% FSO high-accuracy class), hysteresis ±0.05% FSO, repeatability ±0.05% FSO. XPA-1U precision: ±0.05% FSO (BFSL) — the calibration-grade member of the family.
- Thermal effects
- XPI-1A: ±0.005% FSO/°F on zero, ±0.005% reading/°F on span.
- Output signal
- A-10: 4–20 mA, 0–10 V, 0–5 V, and others. S-20: 4–20 mA, 0–10 V, 1–5 V, and others. XPI / XPIH: pick the output on the same body — 1A 4–20 mA, 1U 2 mV/V (3 mV/V opt), 1V 0–5 V. XPA-1U: 2 mV/V (amplified optional).
- Excitation / supply
- XPI-1A: 14–40 VDC.
- Electrical connection
- A-10: angular connector form A and C, M12×1 circular connector, or 2 m cable outlet.
- Wetted parts material
- XPI / XPIH / XPA: 17-4 PH stainless steel wetted parts, all-stainless construction (various wetted materials optional).
- Process connection
- A-10: G¼ A DIN 3852-E, ¼ NPT, and others. XPI-1A: 1/4 NPT female/male or 7/16-20 (per MS33649/MS33656).
- Overpressure / proof
- XPI / XPA: proof pressure 150% of rated. XPIH high-range: 125% of rated.
- Burst pressure
- XPI / XPA: 300% of rated. XPIH: 170% of rated.
- Operating temperature
- XPI-1A: −50 to +250°F (−46 to +121°C).
- Compensated temperature
- XPI-1A: +60 to +160°F (+15 to +71°C).
- Approvals & certification
- A-10: CE, cULus, EAC, and DNV·GL (shipbuilding); CRN on request. S-20: CE and cULus. XPI-1A: CE.
- Configuration & lead time
- The A-10 and S-20 are the short-lead general-industrial workhorses, built from stocked components; the XPI-1A is the rugged tecsis-origin industrial build. Quote-only, no public price list.
Common Applications
- General process and machine pressure monitoring on a PLC
- Hydraulic and pneumatic system pressure
- Pump, compressor, and building air-handling plant pressure
- OEM and equipment-builder pressure measurement
- High-pressure industrial service — XPI to 10,000 psi, XPIH to 60,000 psi
- Reference / calibration-grade measurement — XPA-1U at ±0.05% FSO
Design & Selection Considerations
- FSO accuracy is a percentage of the range, not the reading — a ±0.25% FSO transducer rated for the full scale can be off by that fraction of full scale anywhere in its range — a larger relative error down at the low end. Size so the working pressure lands in the upper part of the range, and when you compare two sensors make sure both quote accuracy the same way. An oversized range quietly throws away resolution at the pressure you actually run.
- Respect the overpressure limit — the danger zone is below burst — proof / safe-overpressure is the pressure the sensor can see without losing calibration; burst is where it is destroyed. A unit driven past proof but short of burst keeps reporting plausible, wrong numbers. Size for the real worst case — including transients — and recalibrate after any suspected overpressure event. A spike that shifts calibration leaves no visible mark; the reading just drifts.
- Match the wetted material to the medium — the wetted parts see the process chemistry directly; the standard stainless suits most service, but corrosive, high-purity, or sour media want the right alloy specified up front. Use the input form to tell us the medium and we pick the wetted material to it. The wrong wetted alloy fails slowly and silently, not all at once.
- Choose the output for the cable run and the receiver — use 4–20 mA for long, electrically-noisy industrial runs where the current loop resists interference; use a voltage output (0–10 V / 0–5 V) for shorter runs into a DAQ. Decide it from what is receiving the signal and how far away it sits. A voltage output on a long, noisy run reads the plant’s electrical noise as pressure.
To spec the right WIKA-ST general-industrial transmitter:
To size and select the right transducer, send us: the pressure range and whether it is gauge, absolute, sealed, or differential; for a differential measurement, the maximum line (static) pressure as well as the differential range; the accuracy class you need (standard industrial vs. high-accuracy); the output the receiving device expects (4–20 mA, 0–5 V, 0–10 V, or raw mV/V) and the cable run; the process medium and temperature (so the wetted material and any extended temperature compensation are right); the process connection and electrical termination; and any area classification or agency approval (Ex / intrinsic safety, CSA, FM) and NACE / sour-service material requirement. For a fast transient, give us the rise time or frequency of the event so the natural frequency is sized above it.
Force & Pressure Application Sheet ›Talk to an engineer directly — Scott Prater, Principal · 917-580-0878 · scott@pratertechnical.com
Specifications compiled by Prater Technical Partners from WIKA product datasheets.