HygroSmart HS3 User’s Manual
6
97516 Issue 5, July 2017
INSTALLATION
2.4.5 Pressurized Environment Installation
The HS3 Probe is a solid assembly with no internal air cavities; this ensures that an
external pressure of up to 10 barg will cause no damage to the probe.
The probe can be installed into pressurized environments by two different methods:
1. Through a vessel or duct wall using the Probe Metal Gland sealing
accessory.
2.
Mounted entirely within the pressurized vessel.
The Probe Metal Gland (HS3-PMG) is shown in
Figure 6. It is designed to be installed in
the wall of the pressure vessel by the M25 x 1.5 thread on the rear (1). The O-ring (2)
provides the pressure seal. The probe can then be installed, and the gland tightened
until the shaft of the probe rotates with the turn of the nut.
1
2
Figure 8
Probe Metal Gland
For safety, always ensure that the probe is tethered to the vessel wall or the gland itself.
A tether can be attached to the probe around the base of the M12 mating connector,
see
Figure 7 for details.
HS3-PE PAA-000002
HS3-PE PAA-000002
Figure 9
Securing Tether
!
When installing probe using the sealing gland, always ensure
that the securing tether is fi tted before applying pressure!
