COSA Xentaur Xentaur HDT - Manual (Page 23)

HDT User’s Manual
page 16
cooldown time. When selecting the power supply voltage
do not neglect the voltage drop across any current measure-
ment resistor and wiring in the loop. The connector is an
Industrial Standard 9.4 mm, 4 pin connector. IP65 NEMA
4X. Please observe connector polarity when plugging in the
HDT cable. Please align the wider earth ground pin (marked
) to the wider slot on the connector (marked ). Note
that the wider slot is on the same side of the connector as the
cable grip stem. Make sure that the weatherproofing gasket
is seated flat against mating surfaces. Do not force the con-
nector. When the connector engages, secure it with the
retention screw.
The HDT will draw 4mA to 20mA from the power supply
depending on the dewpoint being measured. The dewpoints
corresponding to 4mA and to 20mA are user selectable via
the HART interface, in between the current will vary lin-
early to the programmed engineering units, see appendix G.
The connector is keyed with a wider earth ground pin.
Weather-
proofing
gasket
Retention
screw