WaterMistProof DC

NFPA 750 water mist field acceptance records for datacenter zones.

WaterMistProof DC field record screens

Record the zone at the skid

WaterMistProof DC helps a special-hazards fitter or commissioning witness record one high-pressure water mist zone at a time. Key the pressure reading, verify the nozzle flow, walk the hydro and flush gates, prove the release logic, time the discharge, capture the witness signature, and export the signed record.

K-factor flow check
Compute per-nozzle flow from the correct unit pair and flag mixed metric or US entries before the record can lie.
Hydro, flush, release
Gate the section with the 1.5 times working-pressure hydro check, clean-flow flush record, and commanded-zone release checklist.
Discharge timer
Log discharge pressure, held-design-pressure duration, supply duration, and missed-nozzle status in the same zone sheet.
Signed export
Bind the witness signature to current readings. Editing a source reading clears the signature and asks for a fresh witness.

Price

Free includes three zone records. Paid access unlocks more zone records and export capacity through Google Play Billing: $19.99 per month, $199 per year, or $499 lifetime.

Scope note

This is a field acceptance aid. It is not the stamped hydraulic design, not the listing fire test, and not the manufacturer commissioning manual. The approved design, listing, manufacturer manual, commissioning agent, and AHJ govern the job.

FAQ

What standard does it support? WaterMistProof DC is built for NFPA 750 water mist commissioning records and field checks. It cites the governing logic without copying standard tables.

Does it work offline? Yes. Entry, math, saved records, signatures, photos, and export generation run on the device. Play Billing restore and chosen share targets may use platform services.

What does it export? The app creates a signed per-zone PDF and CSV rows for nozzle, pressure, hydro, release, discharge, instrument, and witness data.