Huba Control Type 503 Ceramic OEM Pressure Transmitter
Compact semi-automated-production ceramic pressure transmitter for OEM machine/appliance monitoring of compatible liquids and gases, designed for low hysteresis and economical high-volume integration.
Manufacturer model specifications
Manufacturer current model page pressure range up to 25 bar (older product overview gives broader family ordering spans); response under 5 ms; ceramic Al₂O₃ (96%) wetted measuring element; housing ABS/PA6. Electrical output options 4–20 mA, 0–10 V, and 10–90% ratiometric, dependent on selected supply and connector.
Certification and model-variant restrictions
Manufacturer states the 503 is an OEM component intended for incorporation into EC-compliant finished appliances; final product CE approval remains the integrator’s responsibility. No universal ATEX or IECEx designation is claimed.
Original technical source
Huba Control official Type 503 model page and technical downloads.
Type 503 — OEM pressure electrical and media integration
| Model selection parameter | Manufacturer-specific evidence |
|---|---|
| Pressure, mechanical response | 0–25 bar family range on the current product page; response <5 ms. Selected measuring and overload range must match the specific 503 variant. |
| Fluid and thermal limit | Compatible process media/gas; medium temperature +2…+90°C, ambient +10…+60°C. Do not assume that a nominally corrosion-resistant ceramic cell makes all seals suitable for the medium. |
| Wetted components | 96% alumina ceramic element, AISI 303 stainless-steel connection, choice of FPM, EPDM or NBR seal depending on application. |
| Output selection | 4–20 mA, 0–10 V, or 10–90% ratiometric options; ratiometric supply listed as 5 VDC ±5%. The device is not a multi-output sensor simultaneously providing every interface. |
| Proof and burst | Permissible overload 2× full scale (up to 50 bar), burst pressure 3× full scale (up to 90 bar); neither defines continuous working pressure. |
| Electrical safety | The supplier states end-equipment conformity is the OEM integrator’s responsibility. Connector versions have specified reverse-polarity protections, so wire the exact contact layout. |
Use a pressure sensor’s electrical response and media rating to evaluate a control loop; short 5 ms element response does not establish response of the complete mechanical tubing and controller. Distinguish 503 from similar pressure transmitter families and preserve suffix-specific approvals.
Huba Control 503 original engineering specification (manufacturer reference; reviewed 26 October 2026).