Honeywell Sensepoint XCD RFD - Introduction

Sensepoint XCD RFD Technical Manual SPXCDHMRFENU Issue 1
6
Locking
Grub
screw
Internal Earth
Point
Enclosure
External Eart
h
Point (x2)
M20 or 3/4"NPT cable/conduit
entry (x2)
Cover
Seal
Display Module
Terminal Module
Ex d Plug
Integral
mounting plate
Certification Label
M25 or 3/4"NPT entry for Flammable
Sensor or Remote Sensor Cable Gland
4 Introduction
The Sensepoint XCD RFD transmitter allows the user to either directly or remotely mount
a flammable gas sensor from the Sensepoint XCD. See sensor information in section
4.2. The remote sensor can be located up to 30 meters (100 feet) from the transmitter.
The transmitter features a display and three programmable relays for controlling external
equipment e.g. alarms, sirens, valves or switches. The transmitter provides an industry
standard 3-wire, 4-20mA source or sink output for connection to a dedicated gas detection
control system or PLC.
The construction of Sensepoint XCD RFD allows it to be used in hazardous area locations;
it may also be used in other areas not classied as hazardous. Sensepoint XCD RFD is
suitable for use in Class I Division 1 areas.
Calibration and maintenance is carried out using a Magnetic Wand, this allows a single
user to undertake routine maintenance without needing to access internal components.
Sensepoint XCD RFD comprises of the main parts as shown below.
Diagram 1. – Exploded View