Heinrichs Messtechnik GmbH
Page 34 of 122
OPERATING MANUAL TMU / UMC3
Operating conditions
Installation conditions and cable glands
The integral mount version of the UMC3 shall be installed in accordance with the sensor installation
requirements stated in section 3.4.1, “Installation” on page 18.
When selecting the position of installation, especially for the remote-mounted UMC3, ensure a vibration-
free mounting.
Warning:
Cable glands are not contained in the
basic
scope of supply. The operator is
responsible for
ensuring that cable glands
or
plugs
according to the enclosures type of
EX-protection and the provided threads
are used. The
enclosures
thread
type is stated
on the
transmitters
rating plate.
Caution:
Where applicable,
metalized cable gland must be used
for the
sensor
/
trans
mitter
cable to ensure a sufficient conductive
connection
for the cable shield
.
(See section 5.1.3, “Sensor connection” on page 46).
NPT cable glands
The transmitter housing is available with either M20x1.5 or NPT ½“ threaded cable gland entries.
For other threaded entries cable glands the manufacturer adds certified adapters. These adapters are
mechanically fixed to the thread of the transmitter housing.
Warning:
Adapters mounted by the manufacturer may never be removed by the customer! In the
event of a removal of these adapters, the protection class Ex-d can no longer be
guaranteed.
