M20013 REL-0000 (2103)
User Manual HHP460 Smart Manometer with Altimeter & Air Speed Test
10 of 72
Sensors
Overview of Sensors
This Smart Manometer can display two measurements: one from
the internal sensor and one from the optional tether sensor.
▪
P1 on this Smart Manometer always refers to the internal
sensor.
▪
P2 on this Smart Manometer always refers to the external
sensor.
Use two wrenches to install or remove pressure
connections
Connection: 1/8 in. female NPT, 316L SS.
▪
Always use a 3/4 in. wrench on the pressure manifold when
you install or remove the 1/8 in. NPT fitting.
▪
Applying torque to the manifold can damage the plastic
enclosure and voids the warranty.
▪
Do not over tighten.
Carefully equalize the pressure
Avoid these two issues with
differential sensors:
1. Connecting pressure to the incorrect pressure port on DN or
DI differential pressure modules may cause damage to the
pressure sensor.
2. Applying pressure to either port before both connections are
made.
Apply pressure to both differential ports at the same time.
Note: See Overrange limit in the section called Specifications
concerning overrange pressure limits. If over pressure damage
occurs, you must return the Smart Manometer to the factory for
sensor replacement.
