Det-Tronics X3301 Multispectrum IR Flame Detector with HART - Manual (Page 5)

3 95-8577 3.1
Multidrop Mode
Optical flame detectors are life safety devices and require
the
4-20 mA loop for transmitting important detector
status data. They should not be used in conjunction with
multidrop mode. If multidrop mode is a requirement, the
alarm and fault relay contacts must be connected directly
to the safety system or fire panel for signalling purposes.
NOTE
This addendum covers HART wiring only. Refer
to the device instruction manual for NFPA-
72
compliant releasing wiring diagrams.
HART DEVICE DESCRIPTION LANGUAGE
The HART protocol incorporates a concept called the
Device Description Language (DDL) that enables all
suppliers of HART instruments to define and document
their products in a single consistent format. This format
is readable by handheld communicators, PCs and
other process interface devices that support DDL. DDL
enables full interoperability of devices, regardless of
manufacturer, allowing full functionality from any HART
device.
In the event that your Communicator does not establish
communications with the X
3301 , ensure that the
appropriate DDLs for the X 3301 have been programmed
into your Communicator. To review the DDLs programmed
into your HART Communicator:
1. From the Main menu, access the Offline menu.
2. From the Offline menu, select New Configuration to
access the list of device descriptions programmed
into the HART Communicator.
3. Select Det-Tronics and review the list of models to
determine if the X 3301 DDLs are installed in your
Communicator.
If the X 3301 DDLs have not been programmed into the
Memory Module, you must use the generic interface built
into your HART Communicator.
The HART Communication Foundation manages a
library of Manufacturer Device Descriptions, which are
distributed to programming sites for inclusion in master
devices. A complete listing of the HCF DD Library is
available for download in manufacturer and device type
sequence at http://www.hartcommproduct.com/.
DETECTOR WIRING
Refer to the X
3301 instruction manual (form number
95-8527 ) for complete instructions regarding detector
installation and wiring. However, note that the device
power consumption specifications for the HART model
are different than the standard model.
Power Consumption Specifications of X 3301
Detector with HART Communication
Without heater:
4.7 watts at 24 Vdc nominal;
6.1 watts at 24 Vdc in alarm.
5.5 watts at 30 Vdc nominal;
7.4 watts at 30 Vdc in alarm.
Heater only: 8 watts maximum.
Total power: 17 watts at 30 Vdc with EOL resistor
installed and heater on maximum.
EOL resistor must be ceramic, wirewound type, rated
5 watts minimum, with actual power dissipation not to
exceed 1.5 watts.