Issue
N
C.S.
04.03.20
Trading Estate Farnham Surrey England
Doc. No. TD 120
Page 2 of 25
2. SAFETY REQUIREMENTS
2.1 Certification
This instruction document is for special versions of Kinetrol's EL electro pneumatic positioner which are certified for use in
areas with a risk of explosion. The unit is approved by Baseefa as intrinsically safe (IS) to the European classification Ex ia
IIC T4 Ga in accordance with ATEX directive 2014/34/EC allowing it to be used in non mining Zone 0 areas, provided it is
installed according to approved procedures – see relevant pages of EC-Type Examination Certificate No.
Baseefa03ATEX0098X – issue 3 reproduced on pages 15-18 of this document, and Harmonised European Standard EN
60079-0:2012 + A11:2013 and EN 60079-11:2012. The unit is also approved to equivalent IECEx standards as shown
reproduced on pages 19-22 of this document.
2.2 Barrier
The unit is powered by compressed air and positioning is controlled by a 4-20mA signal. The angle retransmit option is also
loop powered, requiring 8 to 24 volts to drive the 4-20mA current through it. In hazardous area applications, electrical
sources for both circuits must be located outside the hazardous area and the currents passed through two separate
approved 28v 300 ohm shunt zener diode barrier devices as defined on page 16 of these instructions. These will act to
prevent dangerous levels of electrical energy being available inside the hazardous area.
Without approved 28v 300 ohm barriers, the positioner is not safe in a hazardous area.
2.3 Identification
IS approved positioners are identified by a black anodised aluminium label attached to the lid. This is reproduced as Figure
10 on page 14 of this document. Non-IS versions carry a red label.
Do not use positioners with red labels in hazardous areas.
2.4 Limit Switches and Proximity Sensors
If the unit is fitted with the limit switch option, each limit switch must also be connected via a suitable barrier. This could
make in total up to four possible circuits, each of which must be electrically isolated from each other. If proximity sensors
are fitted in place of the limit switches, then these again must be connected separately and electrically isolated and wired
via a suitable barrier as defined in section 3.3 and on page 16.
Without approved barriers, these switches are not safe in a hazardous area.
2.5 Environment Conditions
The ambient temperature range allowed for use of this equipment is -20ºC to 70ºC. It is the responsibility of the user to
ensure that the environmental conditions are compatible with the materials used in the construction of this device. If in
doubt, contact Kinetrol.
2.6 Vibration Resistance
Maximum mounting sinusoidal vibration is 4g at a maximum frequency of 100Hz in any direction.
2.7 Dust Atmosphere
The use of the EL positioner does not extend to dust atmospheres. It is recommended that the unit surface is occasionally
wiped clean to prevent dust build up.
2.8 Optional Clearcone Monitor
The fitting of a special version of the clearcone monitor is allowed within the ATEX approval of the positioner. It has an
electrically conductive surface which prevents the build up of static electricity. It must be factory fitted with the positioner,
although spare parts can be fitted if it becomes damaged.
Title : Installation, Operation & Maintenance Instructions – IS Digital EL Positioner
N – AR7059 / M – AR6971 / L - AR6419 / K - AR6347 / J-AR6096 / H – AR 6082 / G – AR 5487 / F – AR 5608 / E - AR 5293
