A selector valve converts the unit from pressure to vacuum mode without the need to exchange pistons. These piston/cylinder type pneumatic standards provide excellent stability, repeatability and accuracy. An optional built-in hand pump can be added for both pressure and vacuum generation.

Features

• 0.015% of reading accuracy standard (0.008% optional)
• Vacuum range: 1 to 30 inHg
• Pressure range: 5 to 400 inH₂O
• High quality needle valves provide optimum control
• Mounted spirit level and adjustable feet
• Test station design with O-rings eliminates the need for PTFE tape or wrenches
• Improved case with spring-loaded latches for hood
• Sturdy weight box with hinged lid and side handles for easy transport

Application Selection Guide

Model number	754	721/​721Ex	719Pro	719	718	717	700G	3130	2700G	Dead-weight Testers
Application
Calibrating pressure transmitters (field)	●	●	Ideal	●	●	●		●
Calibrating pressure transmitters (bench)	●	●	●	●	●	●		Ideal		●
Calibrating HART Smart transmitters	Ideal
Documenting pressure transmitter calibrations	Ideal
Testing pressure switches in the field	Ideal	●	●	●	●	●		●
Testing pressure switches on the bench	●	●	●	●	●	●		Ideal
Documenting pressure switch tests	Ideal
Testing pressure switches with live (voltage) contacts	Ideal
Gas custody transfer computer tests	●	Ideal	●
Verifying process pressure gauges (field)	Ideal	●	●	●	●	●	●
Verifying process pressure gauges (bench)	●	●	●	●	●	●		●	●	Ideal
Logging pressure measurements	●						Ideal		●
Testing pressure devices using a reference gauge									Ideal
Hydrostatic vessel testing							Ideal
Leak testing (pressure measurement logging)	●						Ideal