BUSCH RA 0025 F Manuel D'installation Et De Service page 38

Resistance thermometer Pt-100
with and without neck tube, with changeable measuring insert
with terminals or built in Pt-100 transmitter Pt-100
BA0404
Assembly, electrical installation and inauguration, maintenance:
Assembly, electrical installation, inauguration, operation and maintenance of the device must be carried out by an qualified
employee. The electrical installation of the device must be carried out according to the respective country specific standards.
An incorrect assembly or adjustment could cause applicationally conditioned risks. The device is maintenance free.
The materials for protection tube, process connection, neck tube and connection housing must be selected corresponding to
the respective operating conditions (medium, temperature). An unsuitable material can cause damage, abnormal behaviour
or destruction of the device and from that it can lead to resulting danger.
Use only shielded signal and measurement wires and install these wires separated from power leading wires.
Connect the shield only at one side to earth.
After connecting the cable the cable gland and the connection housing cover must be fixed screwed on to achieve the
tightness IP67 of the housing.
The device meets the legal requirements of all relevant EC-guidelines.
Safety notes:
If a device is installed and operated in a hazardous area, the general Ex construction standards (EN60079-14, VDE0165),
this safety notes and the enclosed EC conformity certificate must be observed. The installation and operation instructions,
safety notes and EC conformity certificate of a build-in transmitter must also be observed.
The assembly of an Ex system must be carried out principally by specialist staff.
Classification: II 1 GD EEx ia IIC Tx°C IP65 resp. II 1/2 GD EEx ib IIC Tx°C IP65 resp.
II 2 GD EEx ib IIC Tx °C IP65 or
II 1 G EEx ia IIC T6...T1 resp. II 1/2 G EEx ib IIC T6...T1 resp. II 2 G EEx ib IIC T6...T1
The temperatures marked with Tx°C can be found in the tables in the EC conformity certificate.
The devices are conceived for measurement of temperatures in explosive endangered areas, that requires devices of
category 1. The measured medium may also be combustible liquids, gases, fogs, steams or dusts.
The permitted operating temperatures are type and variant dependent and can be found in this technical documentation.
For applications, which require devices of category 1/2 or category 1 , the process pressure and temperature range of the
media has to be between 0.8 bar and 1.1 bar and between -20 °C and 60 °C. If the thermometer is operated beyond these
atmospheric conditions, this approval serves as a guide. Additional tests for the special application conditions are
recommend.
In areas with explosive dust-air-atmosphere that requires devices of category 1/2 or category 2 the permitted environmental
temperature in the area of the connection housing in steel or aluminum is between –20°C...+80°C.
In areas with explosive gas-air-atmos phere the permitted environmental temperature in the area of the connection housing
in steel, aluminum or POM is between –20°C...+100°C, resp. in the area of the connection housing in PP –15°C...+100°C.
For specifying the permitted environmental temperature in the area of the connection housing when using a transmitter that
is built into the connection housing the permitted environmental temperature of the transmitter must also be observed.
In explosive endangered areas dust-air-atmosphere only the connection housing in steel or aluminum are permitted
A built-in transmitter must be certified for EEx ia IIC T4 or T5 or T6. For applications in zone 1 resp. 21 the certification EEx
ib IIC T4 or T5 or T6 is also sufficient. The installation of a transmitter with lower temperature class reduces the temperature
class of the whole device.
For the application in explosive endangered areas with dust-air-atmosphere only the transmitter ExKTM-_A0 or another
therefore specially proofed device is permitted. The maximum surface temperature of the built-in transmitter Ex-KTM-_A0 is
around 15K higher than the environmental temperature of the transmitter.
This results e.g. in T55 at T
For PROFIBUS transmitter, where the electrical output values in direction measuring insert are defined, the determined
®
input values for U , I and P
i i
for the installation and the application of the PROFIBUS
PROFIBUS transmitter).
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If mounted in the partition wall to the hazardous area that requires devices of category 1, the process connections have to
be designed in such a way, that they are sufficiently tight according to EN 50284 section 4.5.
At the connection housing in aluminum there is a danger of ignition by sparks caused by impact or friction. The operator has
to ascertain the suitability of this device for his use.
At versions of the device with chargeable plastic parts (e.g. connection housing), a warning marking points out to the safety
measures, that must be applied because of the electrostatic charging in operation mode and especially in the case of
maintenance activities.
avoid friction
ACS-CONTROL-SYSTEM GmbH
RA 0025 - 0100 F Version ATEX Cat. 2 G & Cat. 2(i) G
0870139669 / 100311
Installation and operating instructions
= 40°C, T75 at T = 60°C and T95 at T
a a
, that are described in the EC conformity certificate may be exceeded, if the safety specifications
i
no dry cleaning
–
Lauterbachstraße 57 – 84307 Eggenfelden – Tel. (08721)9668-0
Fax. (08721)966830 – Email:
0032
= 80°C in the area of the transmitter ExKTM-_A0.
a
devices are observed (see also the safety instructions of the used
®
no assembling in pneumatic conveying stream
info@acs-controlsystem.de
www.acs-controlsystem.de
Internet:
Documentation sur l'équipement de mesure et de sécurité
PTX
page 6 of 8
page 38