Honeywell Sensepoint XCD RFD, Technical Handbook

Page: 17 / 79

Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
17
6 Electrical connections
WARNINGS
Sensepoint XCD RFD is designed for installation and use in Zone 1 or 2 hazardous areas
in many countries including Europe, and for Class I, Division 1, Group B,C & D Hazardous
Areas in the Americas.
Installation must be in accordance with the recognized standards of the appropriate
authority in the country concerned.
Access to the interior of the detector, when carrying out any work, must only be conducted
by trained personnel.
Before carrying out any work ensure local regulations and site procedures are followed.
Appropriate standards must be followed to maintain the overall certification of the detector.
Care should be taken when removing and refitting the Sensepoint XCD Sensor Cartridge to
the Sensor Socket so that damage to the connection pins can be avoided.
If using an anti-seize compound, the threads should be thinly coated with an approved
silicone free compound e.g. petroleum jelly
To reduce the risk of ignition of hazardous atmosphere, de-classify the area or disconnect
the equipment from the supply circuit before opening the detector enclosure. Keep
assembly tightly closed during operation.
Never attempt to open a junction box/enclosure or replace/refit the sensor in potentially
hazardous atmospheres while power is still applied to the transmitter.
The detector must be earthed/grounded for electrical safety and to limit the effects of
radio frequency interference. Earth/ground points are provided inside and outside the unit.
Ensure that all screens/instrument earth/clean earth wiring is earthed/grounded at a single
point (either at the controller or detector - BUT NOT BOTH) to prevent false alarms due to
earth/ground loops.
Take care when handling sensors as they may contain corrosive solutions.
Do not tamper with or in any way disassemble the sensor.
Do not expose to temperatures outside the recommended ranges.
Do not expose sensors under storage conditions to organic solvents or flammable liquids.
Refer to the local or national regulations relative to the installation at the site. For Europe
see EN60079-29-2, EN60079-14 and EN61241-14. For the Americas refer to the Sensepoint
XCD RTD Control Drawing 3001EC091 shown in section 17.