Figure 1 shows an example HMT370EX installation using the HMP373 probe with the probe
head mounted with a bracket, and with both lead-throughs fitted with cable glands.
CAUTION Before starting the
installation, review the equipment and safety requirements in this installation overview and
the hazardous area safety information relevant to your region: see Regional safety certification overview.
WARNING The installation must be
carried out in a safe area, or you must ensure that an IEC 60079-14 compliant safe work
procedure has been implemented in the hazardous area.
WARNING When HMT370EX is powered,
the transmitter enclosure must not be opened in a hazardous area. The probe can be detached
and changed when HMT370EX is powered. Any other live maintenance, including changing the
probe head filter, is not allowed.
Screws for mounting the transmitter:
Installation directly through the
transmitter body: 2 pcs Ø 5.5 mm screws
Installation with optional mounting
plate: 4 pcs Ø 5.5 mm screws and 2 pcs M6 Allen screws
Crosshead screwdriver for transmitter
cover captive screws and wiring screw terminals
Flathead screwdriver for the grounding
Cable glands, conduits, and plugs as
required in your application, and suitable tools for attaching and tightening them
Crimping tool and wire ferrules
Allen key (5 mm) for probe body locking
Ex-compliant multimeter for testing