HDI 2522, Руководство пользователя

Страница: 8 / 36

HDI 2522 Position Indicator Gauge
IECEX/ATEX User’s Manual – HDI 2522, Rev A | November,2019
8
CAUTION:

Use of non-HDI approved potentiometers could severely damage the instrument and voids the
standard HDI one year warranty.

Replacement or substitution of the potentiometer will require the user to recalibrate the gauge
to the new sensor based on the indication required range. Customer to review calibration
procedures in Section 5.C.2 or may visit: http://hdigauges.com for more details.
2.E Cable
To better serve HDI’s clients, interconnect cables are ordered in 5-foot increments only. In the event the
customer receives their specified interconnect cable only to find that it is too short, the customer can
order an additional inline cable. This is basically an extension cable with corresponding Male / Female
connectors for a plug and play installation.
2.F System Options
HDI offers various options as listed in the following subsections. The customer must use the installation
drawings listed in Section 8 to connect the HDI 2522 gauge from a hazardous to a non-hazardous zone.
Any deviations from the drawings will void the applicable certifications.
2.F.1 4-20 mA Output
A current loop providing a 4-20 mA output is added as an option to the 2522 gauge system. This may
be used for chart recorder inputs, data logging or PLC interface. This option requires that the 4-20 mA
current loop be externally powered via customer supplied 12 or 24 Vdc. This is a factory installed option
and does not require field calibration. Please refer to Section 8 for the connection diagram and for any
applicable zone barrier requirements.
2.F.2 0-1 Vdc Output
HDI offers as an option a 0-1 Vdc remote output that may be used for chart recorder inputs, slave
configuration, or data logging. This is a factory installed option and does not require field calibration.
Please refer to Section 8 for the connection diagram and for any applicable zone barrier requirements.