KROHNE OPTITEMP TC 100 Ex EN - Manual (Page 5)

DEVICE DESCRIPTION
2
5
OPTITEMP TR/TC100
www.krohne.com 08/2010 - 4001022701 - Ex AD OPTITEMP TR/TC 100 R01
2.3 Marking
2.4 Flammable products
Atmospheric conditions
An explosive atmosphere is a mixture of air and flammable gases, vapours, mists or dusts under
atmospheric conditions. The following values define it:
T
atm
= -20...+60°C / -4...+140°F and P
atm
= 0.8...1.1 bar / 11.6...15.9 psi
Outside of this range, no key data are available as to ignition behaviour for most mixtures.
Operating conditions
Outside of atmospheric conditions you cannot apply explosion protection according to Directive
94/9/EC (ATEX) – regardless of the zone assignment - due to the lack of key safety data.
1 Description code
2 Identification number of the notified body as per Directive 94/95, Appendix IV
3 Ex-marking
4 Number of the EC Type Test Certificate
5 Equipment group and category
6 Unique serial number
7 Production order number
8 Sensor name (e.g. 1xPt100-A-ww): single/double version (here: simple, thus 1x), tolerance class (here: tolerance class
A), type of RTD (here: wire-wound version, thus ww)
9 Temperature range of use
CAUTION!
The operator is responsible for ensuring that the measuring inserts are operated safely as
regards the temperature and pressure of the products used.
Include the thermometer assembly in the periodic pressure tests of the system when operating
with flammable products.
.book Page 5 Wednesday, August 11, 2010 11:40 AM