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BWT™ System Installation Guide
The use of this apparatus is subject to the EU directive on minimum requirements for improving the safety and health
protection of workers potentially at risk from explosive atmospheres, Council Directive 1999/92/EC. The installer is
required to be familiar with this document or the National transposing legislation.
Examples of Markings
Thermal Data
The relation between process temperature, ambient temperature and temperature class is shown in the table below.
BWT Transducer/Junction Box Details
Manufacturer and certificate owner:
Panametrics Sensing Inc, Billerica, MA 01821, USA.
Alternative manufacturing site:
Baker Hughes EMEA, Shannon, Co. Clare, Ireland
QAN License Number:
0794
Notified Body for Quality Assurance Notification:
SGS Baseefa
Notified Body Number:
1180
Certificate Number:
KEMA 01ATEX2051; IECEx KEM 09.0010
Apparatus Markings (see example below):
II 2 G Ex d IIC T6 Gb -40°C < Tamb < +70°C
Max. Process Temp.
Max. Ambient
Temp.
(XAMP / No XAMP)
Buffer Length
Temp. Class
+70 °C
+40 °C / +60 °C
0" / 2" / 6" / 10"
T6
+85 °C
+40 °C / +60 °C
2" / 6" / 10"
T5
+120 °C
+40 °C / +60 °C
2" / 6" / 10"
T4
+175 °C
+40 °C / +60 °C
2" / 6" / 10"
T3
+285 °C
+40 °C / +60 °C
2" (SS only) / 6" / 10"
T2
+435 °C
+40 °C / +60 °C
6" / 10"
T1
+565 °C
+40 °C / +60 °C
6" / 10"
580°C
+600 °C
+40 °C / +60 °C
10"
615°C
Min. Process Temp.
Min. Ambient
Temp.
Buffer Length
-40 °C
-40 °C
0" / 2" / 6" / 10"
-194 °C
-5 °C
2"
-194 °C
-25 °C
6" / 10"
Enclosure, BWT Assembly
BWT Transducer Body
[Serial number format is MMYYNNNN, where MMYY is month and year of construction and NNNN is a sequential number.]
Содержание BWT System
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