WIKA High-Quality Pressure Transmitter for General Industrial Applications Model S-10

Gauge (relative) pressure: 0–0.1 bar to 0–1000 bar; in psi: 0–5 psi to 0–15,000 psi. Absolute pressure: 0–0.25 bar abs to 0–25 bar abs; plus the special 0.8–1.2 bar abs atmospheric range; in psi: 0–15 to 0–250 psi abs. Vacuum and compound: –0.6/0 to –1/+24 bar; –15 inHg/0 to –30 inHg/+300 psi. All ranges are also available in kg/cm² and MPa. The instrument is vacuum-tight as standard. Burst pressures are available on request for each range.

Seven standard output signals: 4–20mA (2-wire, DC 10–30V) — industry standard for PLCs; 20–4mA inverse (2-wire, DC 10–30V) — for safety/fail-active systems; 0–20mA (3-wire, DC 10–30V) — zero-based current; DC 0–10V (3-wire, DC 14–30V) — SCADA/DCS direct interface; DC 0–5V (3-wire, DC 10–30V) — data acquisition; DC 1–5V (3-wire, DC 10–30V) — live-zero voltage; DC 0.5–4.5V ratiometric (3-wire, DC 4.5–5.5V) — microcontroller, OEM, mobile machinery. Other signals available on request.

Non-linearity per IEC 61298-2 is ≤0.2% of span BFSL (Best Fit Straight Line). The overall accuracy at reference conditions — including non-linearity, hysteresis, zero offset, and end value deviation per IEC 61298-2 — is ≤±0.5% of span (standard) or ≤±0.25% of span (option, only for ranges ≥0.25 bar). Non-repeatability is ≤±0.1% of span. Long-term stability is ≤±0.2% of span per year. Temperature coefficients: zero ≤0.2%/10K (>0.25 bar ranges); span ≤0.2%/10K.

Standard connections include: G¼B and G½B (EN 837); G¼A (DIN 3852-E — maximum overpressure limit 600 bar); G¼ female; ¼NPT and ½NPT (ANSI/ASME B1.20.1); 7/16-20 UNF with 74° taper (SAE J514 E); M20×1.5; G½ male/G¼ female adapter; R¼ (ISO 7). Seal options: copper, stainless steel (EN 837), NBR and FKM (DIN 3852-E). Other process connections available on request.

Eight electrical connection options: DIN 175301-803 A (IP65); DIN 175301-803 A with ½NPT (IP65); Circular M12×1 4-pin (IP67); Bayonet 6-pin (IP67); ½NPT conduit with cable (IP67, 1.5–10m/5–30ft); Cable outlet standard (IP67, 1.5–10m/5–30ft); Cable outlet not-adjustable (IP68, 1.5–10m/5–30ft); Cable outlet adjustable (IP68, 1.5–10m/5–30ft — zero/span potentiometer accessible). Note: IP68 'not-adjustable' does not allow field adjustment of zero/span.

Vibration resistance: 20g per IEC 60068-2-6. Shock resistance: 1000g (mechanical) per IEC 60068-2-27. These are among the highest vibration and shock ratings available in a compact general industrial pressure transmitter. They qualify the S-10 for installation on vibrating machines, hydraulic presses, high-cycle compressors, and mobile machinery — environments where lesser transmitters would fail from mechanical fatigue or connection failure.

Wetted parts: stainless steel. Case: stainless steel. Internal pressure transmission medium: synthetic oil (for ranges ≤25 bar relative — transfers process pressure to the sensing element via a small oil column); dry measuring cell (for ranges >25 bar relative — no oil, direct mechanical measurement). Clamping nut: PA (polyamide). Angular connector housing: PA. O-rings at clamping nut: NBR. Flat gasket: VMQ (silicone rubber).

The S-10 is the proven workhorse for general industrial applications with outstanding availability and robust performance. The S-20 is the premium platform for demanding applications — it adds three accuracy classes (including ≤±0.125% BFSL), selectable calibration temperatures (+4/+40/+60/+80°C), wider range (to 1600 bar), more connection types (15+), higher IP (IP6K9K), special media versions (oxygen, hydrogen, food), and 100 million load cycle service life. For standard machine building, hydraulics, and chemical industry applications, the S-10 is the right choice; for critical applications requiring maximum accuracy and special media, specify the S-20.

The ratiometric output (DC 0.5–4.5V, supply DC 4.5–5.5V) produces an output voltage that is proportional to the supply voltage — so if the supply changes, the output scales proportionally. This eliminates supply voltage regulation errors in microcontroller and embedded systems where both the transmitter and the ADC input share the same 5V supply. It is specified for mobile machinery (construction equipment, agricultural machines, mining vehicles), OEM sensor integration, and embedded control systems. Settling time is ≤2ms for this output at ranges below 400 mbar/10 psi.

The special narrow-span absolute pressure range 0.8–1.2 bar abs (overpressure limit 5 bar) is specifically designed for atmospheric and barometric pressure measurement. Unlike a gauge pressure transmitter that measures relative to ambient, this range measures the absolute atmospheric pressure — useful for: weather station integration, altitude and elevation measurement, HVAC duct pressure balancing, building automation and BMS pressure reference, altitude-compensated combustion control, and any application requiring precise ambient pressure data.

For measuring ranges ≤25 bar relative, a synthetic oil fills the space between the sensing diaphragm and the measuring element — the oil transmits pressure gently and provides a degree of protection. At ranges above 25 bar, the pressure forces involved are large enough that a dry measuring cell (direct mechanical contact between process and measuring element) is structurally more reliable, less prone to leakage risk at high pressure, and eliminates concerns about oil contamination of the process in sensitive applications. This is standard practice in industrial transmitter design at higher pressure ranges.

Standard: medium –30 to +100°C; ambient –20 to +80°C; storage –40 to +100°C. Extended option: medium –40 to +125°C (ambient remains –20 to +80°C). The extended option is required for: cryogenic or very cold media (below –30°C), high-temperature chemical reactions (above +100°C up to +125°C), outdoor winter installations in extreme cold climates, and applications where process fluid temperature may occasionally spike to +125°C during start-up or upset conditions.

The inverse (reverse) 20–4mA output provides 20mA at zero pressure and decreases to 4mA at full scale — the opposite of the standard 4–20mA. Use cases include: safety instrumented systems (SIS) where a high signal represents safe (low pressure) and low signal represents alarm (high pressure — fail-to-energize logic); legacy DCS configurations wired for a decreasing signal; valve positioners requiring an inverse pressure signal; and applications where an increasing fault signal is safer than a decreasing one (e.g. pressure relief valve control).

Yes — for all electrical connection versions except the IP68 'not-adjustable' cable outlet. The S-10 has internal potentiometers accessible once the electrical connection housing is opened: zero point adjustment ±5% of span, span adjustment ±5% of span. This allows correction of installation-specific offsets (e.g. head pressure from liquid column above the transmitter) and span trim to match a specific control range. The IP68 'adjustable' cable outlet version uniquely provides both IP68 submersion protection AND retained potentiometer access — useful for outdoor or wash-down rated installations where field calibration is still required.

CE conformity: EMC Directive 2004/108/EC (EN 61326, Group 1 Class B — industrial emission and interference immunity standards), and Pressure Equipment Directive 97/23/EC (for pressure-retaining components). Approvals: CSA (Canada — electrical safety and overpressure) and GOST (Russia — metrology and measurement technology). Additional regional approvals may be available; check www.wika.com for the current complete approvals list for model S-10 (data sheet PE 81.01).

Mating connectors: DIN 175301-803 A with metric cable gland (without cable/2m/5m) and conduit gland; M12×1 4-pin straight or angled (without cable/2m/5m). Seal for DIN mating connector: order 1576240. Process connection seals: copper seals for G¼B, G½B, M20×1.5; stainless steel seals for G¼B, G½B, M20×1.5; NBR and FKM O-rings for G¼A DIN 3852-E. All accessories listed with order numbers in WIKA data sheet PE 81.01, page 7.

Per WIKA data sheet PE 81.01: Model (S-10) / Measuring range (type + value + unit) / Output signal (4–20mA/20–4mA/0–20mA/0–10V/0–5V/1–5V/ratiometric) / Accuracy (standard ≤±0.5% or option ≤±0.25%) / Electrical connection (type + IP rating) / Medium temperature (standard to +100°C or option to +125°C) / Process connection (thread type + size). Zebco Engineering can assist with complete configuration and ordering.

The WIKA S-10 offers several verifiable advantages over generic alternatives: (1) Traceable accuracy per IEC 61298-2 — not just claimed but certified; (2) 1000g shock resistance — most generic transmitters are 500g or less; (3) CE, CSA, and GOST approvals for global project compliance; (4) Available in 7 output signals vs typically 1–2 for generic products; (5) 10 process connection types vs 1–3 for generic; (6) Manufactured and quality-audited in Germany by WIKA to ISO 9001; (7) Full documentation (test reports, CE declaration) for ISO/EPC/audit requirements; (8) Readily available from Zebco Engineering ex-stock with genuine WIKA product traceability.

Yes. Zebco Engineering LLP is an authorized WIKA distributor in India, supplying the WIKA S-10 pan India to all major industrial zones — Mumbai, Ahmedabad, Surat, Vadodara, Rajkot, Delhi NCR, Pune, Chennai, Bengaluru, Hyderabad, Kolkata, Ludhiana, Coimbatore, Visakhapatnam, and beyond. International orders to the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Bahrain, Oman), Southeast Asia (Singapore, Malaysia), and South Asia (Bangladesh, Sri Lanka, Nepal) are also handled with complete export documentation, CE and CSA certificates. Contact: +91 98982 26321 or sales@zebcoeng.com.