Det-Tronics X3302 Multispectrum IR Flame Detector with HART - Manual (Page 3)

2.3 95-8613
Digital communication with the X 3302 allows the
operator to monitor the status of the detector, determine
factory settings, adjust field settings, and initiate field
tests. This addendum provides guidance for establishing
HART communication, and describes the HART menu
structure when using the X 3302 with a HART Handheld
Communicator, a PC, or other process interface device
that supports DDL.
NOTE
A minimum level of understanding with regard
to the operation and navigation of the HART
Communicator is required. Refer to the instruction
manual supplied with the HART Communicator for
basic operating instructions.
InTerConneCTIng The hArT CommunICATor
wITh The deTeCTor
Point-to-Point mode
The HART Communicator can connect to the X
3302 at
any wiring termination point in the analog output signal
loop. Connect the HART communicator in parallel with
the X 3302 analog signal or load resistor. The HART
connections are non-polarized.
Important wIrIng note
The HART Communicator does not measure
loop current directly, but instead reads a voltage
signal across a resistance (
250 ohms) in the loop.
The recommended connection point is across
the input impedance of the signal receiver (PLC),
which is a nominal
250 ohms. See Figures 1 to
4 . If testing/programming on a bench, a 250 ohm
load resistor must be used. See Figure 5 .
Switch on the HART Communicator. If a device is found,
the HART Communicator displays the Main menu. If no
device is found, check the connections and verify the
presence of a minimum of 250 ohms load resistance in
series in the loop.
Addendum
HART Communication
with the X 3302
Multispectrum IR Flame Detector
©
detector electronics Corporation 2013 Rev: 10/13