Hart Device Description Language; Detector Wiring - Det-Tronics X9800 Addendum

Multidrop Mode
Optical flame detectors are life safety devices
and require the 0–20 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.
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 (DD)
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 DD. DD 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 X9800, ensure
that the appropriate DDs for the X9800 have been
programmed into your Communicator. To review the
DDs programmed into your HART Communicator:
1. From the Main menu, access the Offline
menu.
2. From the Offline
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 X9800 DDs are
installed in your Communicator.
If the X9800 DDs 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
en.hartcomm.org.
2.2
NOTE
menu, select

DETECTOR WIRING

Refer to the X9800 instruction manual (form
number 95-8554) for complete instructions
regarding detector installation and wiring.
X9800 detectors with HART do not support
RS-485 communication.
Power consumption specifications for the
HART model are different than the standard
model.
Power Consumption Specifications of X9800
Detector with HART Communication
Without heater: 2.1 watts at 24 Vdc nominal;
Heater only:
Total power:
EOL resistor must be ceramic, wirewound
type, rated 5 watts minimum, with actual power
dissipation not to exceed 2.5 watts.
HIB Hdwr Flt
When a HART field communicator is first connected
to the detector, a "HIB Hdwr Flt" message may
be displayed. If this message is displayed, set
the Real Time Clock (RTC) using the HART field
communicator as detailed in the Real Time Clock
section of this manual. See Marketing Bulletin 78-
New 1026 for further information.
3
NOTE
NOTE
3.7 watts at 24 Vdc in alarm.
2.2 watts at 30 Vdc nominal;
4.2 watts at 30 Vdc in alarm.
8 watts maximum.
16.5 watts at 30 Vdc with EOL
resistor installed and heater on
maximum.
95-8637