The available evidence does not establish that the explosion-protected PDU-I.Exd float level transmitter is commercially available. It appears as a new product on page 306 of the 2018 catalog, but the referenced official level-sensor product section lists only PDU-I. Treat the explosion-protected version as unconfirmed until the manufacturer supplies current ordering and certification data.
Availability Evidence
| Evidence | What it confirms | What remains unknown |
|---|---|---|
| 2018 catalog, page 306 | PDU-I.Exd was presented as a new product. | Current production status, stock, lead time, and orderability. |
| Referenced official level-sensor section | PDU-I is listed. | Whether omission of PDU-I.Exd means withdrawal, delayed release, or incomplete web documentation. |
| Project requirement | An explosion-protected version is required. | Explosion-protection marking, certificate, permitted installation area, and approved configuration. |
| Customer preference | HART communication is desired. | Whether any PDU-I.Exd configuration supports HART. |
Unconfirmed Selection Data
The evidence identifies a float level sensor with a 4–20 mA output, but it provides no ordering code, electrical ratings, process connection, materials, measuring range, explosion-protection marking, certificate, or HART capability. Do not transfer specifications from the listed PDU-I to PDU-I.Exd unless the manufacturer explicitly confirms that they apply.
HART is a requested feature, not a documented product function. Keep the control-system interface defined as 4–20 mA only until the manufacturer identifies a HART-capable configuration and supplies its corresponding technical documentation.
Procurement Decision Procedure
- Send the manufacturer the exact PDU-I.Exd designation and reference the 2018 catalog entry on page 306. Request written confirmation of current production and sale status.
- Request the complete ordering code, current datasheet, explosion-protection certificate, protection marking, installation restrictions, and commercial lead time.
- Ask whether HART is supported on the offered configuration. If supported, require that capability to appear in the ordering data and technical documentation.
- Compare the returned documentation with the project hazardous-area and instrumentation requirements before releasing the device for purchase.
Submittal Verification
Accept the selection only when the quotation, ordering code, datasheet, and explosion-protection documentation identify the same device configuration. Separately verify that the signal interface is documented as 4–20 mA and that HART appears explicitly if the project requires it. A catalog entry or the presence of the non-Ex PDU-I on a website does not resolve these checks.
FAQ
Is the PDU-I.Exd level sensor currently available?
The evidence does not confirm current availability. It appeared as a new product on page 306 of the 2018 catalog, while the referenced official product section lists only PDU-I.
Does the PDU-I.Exd support HART communication?
HART support is not confirmed by the available material. Require written confirmation and configuration-specific documentation before including HART in the project design.
What documents are required before specifying PDU-I.Exd?
Obtain the current datasheet, complete ordering code, explosion-protection certificate and marking, installation restrictions, production status, and confirmation of the 4–20 mA and any required HART interface.
