D2578-01-02 SEM210X User Guide
Page 2 of 4
Mechanical Detail
Maintenance
The appropriate regulations concerning maintenance, repair and testing must be observed. In particular, all parts on which explosion
protection depends must be checked during maintenance. The transmitter must never be configured in the hazardous area, the device must
be removed and taken to a non hazardous area for configuration.
The enclosure used to house the
SEM210X
must be cleaned regularly to prevent build up of excessive dust layers.
The
SEM210X
apparatus contains no user serviceable adjustable, replaceable parts. No attempt should be made to repair a
SEM210X
device, all units must be returned to the manufacturer for repair or replacement. Attempted service or replacement of parts may invalidate
the explosive protection features of the
SEM210X
.
The
SEM210X
is mounted using two holes, on standard 33 mm fixing centres and
will fit a DIN standard termination head. The
SEM210X
must be installed with
adequate protection from moisture and corrosive atmospheres. Refer to "special
conditions for safe use" section of this user guide for information on enclosure IP
rating.
Care must be taken to ensure the
SEM210X
is located to ensure the ambient
temperature does not exceed the specified operating temperature as specified in the
"TEMPERATURE CLASS" table.
A 6.3 mm hole is provided in the centre of the transmitter for sensor wires.
The sensor wires may also be fed on the outside of the transmitter.
Electrical Detail
REFER TO CONDITIONS FOR SAFE USE
Special conditions for safe use
1. a) For gas applications, the SEM210X temperature transmitters must be mounted in an ATEX/IECEx approved enclosure rated for IP54
and located in an area where the enclosure will not be subject to impact or friction
b) For dust applications, the SEM210X temperature transmitters must be mounted in a suitably ATEX or IECEx certified enclosure
appropriate for the zone of end use.
2.
The equipment shall only be configured by means of the USB connection outside the hazardous area.
3.
If the equipment is mounted in an enclosure with separate IS circuits, appropriate segregation shall be provided in accordance
with
IEC 60079-11 Clause 6.2.1.
4.
Only suitable for connection to Thermocouple(s), RTD temperature sensor(s) or slide wire resistance devices or a simple
apparatus. They shall conform to the requirements for simple apparatus as defined in IEC 60079-11 clause 5.7 and shall meet the
dielectric withstanding requirements of IEC 60079-11 clause 6.3.13. The insulation must be capable of withstanding an r.m.s a.c. test
voltage of 2U + 1000V, with a minimum of 1500V r.m.s., where U is the sum of the voltages of the intrinsically safe and the non-
intrinsically safe circuit.
5.
The ambient temperature range of the enclosure will limit the permitted ambient range of the overall equipment. Refer to
enclosure certification.
Sensor wires must be isolated from earth breakdown voltage 500 V dc
Sensor
Hazardous Area
Non Hazardous Area
EX
EX
Barrier
SEM210X
CE II 1 GD
Ex ia IIC T4 Ga
Ex ia 20 T135 °C Da
Tamb = -40 °C to 85 °C
DC Supply
Earth
Ui = 30V
Ii = 100mA
Pi = 750mW
Li = 0
Ci = 0
2016-11