XDT User’s Manual Appendices
56
Appendix N: Certifications - Approvals - Conformity (continued)
HAZARDOUS AREA
SAFE AREA
Shunt-diode
Safety Barrier
See Note B
1
2
3
4
75Ω Coaxial Cable
typically 12-20pF/ft.
Female BNC Connector
on Sensor Fitting, Cable
must have a Male BNC
Connector. Polarity
back to Transmitter
must be observed.
Grounding
Bus bar
Xentaur XTR-series
Dewpoint
Sensor Element
Revisions
Rev Description Date Approved
TOLERANCES:
(unless otherwise stated)
Decimal.X = – .030
.XX = – .010
.XXX = – .005
Angular – 1 deg.
Do Not Scale Drawing.
Drawn: B.B.
Material & Finish: (see Notes)
SIZE A
Scale: N/A
84F HORSEBLOCK RD. Yaphank, NY 11980
Date: 3/5/98
Sheet 1 of 1
Rev 5Dwg. No. XDT.00.D.6001
Control Drawing
for Entity Concept Approved Installation
of Xentaur XTR-series Dewpoint Sensor
connected to Associated Apparatus,
in Hazardous (Classified) Locations
XENTAUR
Corporation
IS Class I, Division 1, Group A,B,C and D;
Class II Group E,F and G, T6 at 60C and
ATEX EEx ia IIC T6
1 updated notes 5/6/98 BB
2
add MTL755ac 11/18/98BB
3 added 9001zen. 6/30/99 BB
4 show sensor only 3/8/01 BB
5 ATEX markings 11/28/04BB
Associated Apparatus
Intrinsically Safe Apparatus
Protective Component
Notes for installation in North America:
A. Intrinsically Safe Entity Parameters: V
max
= 10.03Vdc, I
max
= 592mAdc, C
i
= 0.3uF, L
i
= 0mH.
B. Selected Barriers must be galvanically isolated or dual channel shunt zener diode barriers with linear outputs, used channel to channel and having entity parameters
such that V
oc
< V
max
, I
sc
< I
max
, C
a
> C
i
+ C
cable
, L
a
> L
i
+ L
cable
.
C. For C
cable
and L
cable
, if the capacitance per foot or the inductance per foot is not known, then the following values shall be used:
C
cable
= 60pF/foot and L
cable
= 0.2uH/foot.
D. Selected Barriers must be installed in accordance with the barrier manufacturer's control drawing and Article 504 of the National Electrical Code ANSI/NFPA 70.
E. The XTR-Series sensor element does not provide 500V isolation with respect to earth.
Notes for installation in Europe:
Sensor: Xentaur XTR-series Dewpoint Sensor Element
EEx ia IIC T6 DEMKO Certificate No. 05 ATEX 0505798X
A. Intrinsically safe circuit parameters: U
i
: 10.03Vdc, I
i
: 592mAdc, C
i
: 0.3uF, L
i
: 0mH.
B. Selected Barriers must be galvanically isolated or dual channel shunt zener diode barriers with linear outputs used channel to channel and having entity parameters
such that U
o
< U
i
, I
o
< I
i
, C
o
> C
i
+ C
cable
, L
o
> L
i
+ L
cable
.
C. For C
cable
and L
cable
, if the capacitance per foot or the inductance per foot is not known, then the following values shall be used:
C
cable
= 200pF/meter and L
cable
= 0.66uH/meter.
D. The wiring of the intrinsically safe circuit may be installed in accordance with EN60079-14 or
according to national installation requirements.
E. The XTR-Series sensor element does not provide 500V isolation with respect to earth and
the leakage current is higher than 5mA. The sensor shall be connected to PE earth or
installed such that it will satisfy a 500V dielectric with respect to earth.
II 1 G
(56 strony)
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