scope:

This specification covers electrical output pressure transducer equipment for Naval ships but does not include the readout or display equipment.

The type designation shall be in the following form and as specified (see 6.2).

Transducers shall be designated by the three-letter symbols as follows:

PGT - Pressure, gauge, transducer

PVT - Pressure, vacuum, transducer

PCT - Pressure, compound (gauge, vacuum) transducer

PWT - Pressure water column, transducer Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 55Z3, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

Fluid pressure to be measured shall be indicated as follows:

GP - Steam, oil, fresh water, condensate, and other gases

SW - Seawater

FG - Flue gas and ammonia

OX - Oxygen

Full scale gauge pressure range in pounds per square inch (lb/in²) inches of mercury (in Hg) vacuum or inches of water column (WC) shall be designated by its numerical value (see 3.4.3).

Reference pressure shall be one of the following:

G - Atmospheric (gauge)

A - Vacuum (absolute)

S - Sealed reference at 14.7 pounds per square inch absolute (lb/in² absolute).

Wiring of the power supply shall be one of the following (see 3.4.5):

2 - Two-wire system (direct current (dc) supply)

4 - Four-wire system (alternating current (ac) supply)

intended Use:

Transducers are intended to provide control input and monitoring of pressures for shipboard engineering plants.