Instruction Manual

ATEX Gas nA
Operators instructions
CombiView™, type DFON
For ATEX nA zone 2 is approved without using zener barrier must separate the hazardous and safe area and must be installed in
accordance with prevailing guidelines for zone 0.
ATEX data:
Approval: Gas Zone 2 II 3 G, Ex nA II T5
Voltage drop U
Disp
4,5 or 6,5 VDC
Temperature class T1…T5 -30 < T
amb
<65°C
Internal inductivity L
i
<10 µH
Internal capacity Ci <15 nF
Maximum voltage U
max
<35 VDC
Maximum current I
max
<0,1 A
1 +
2 -
3
4
5
6
4…20 mA
Display without relay output Display with relay output
4…20 mA
1 +
2 -
Operators instructions: 11112759 Page 7 / 8
www.baumer.com
Relay 1
Relay 2
Programming the CombiView™, type DFON in ATEX area
Programming the CombiView
™
, type DFON in hazardous area with the FlexProgrammer is not allowed, as the FlexProgrammer
(and/or the PC) is not ATEX approved.
Follow below procedure to programme the instrument:
a Disconnect mains from the 4…20 mA loop circuit
b Disconnect the instrument from the circuit within the hazardous area
c Uninstall the instrument and bring it to safe area
d Connect the FlexProgrammer and perform the configuration session.
(Please see: www.baumer.com/downloads/product documents/manuals - DFON - Programming)
e Re-install the instrument in the hazardous area
f Connect the instrument to the circuit
g Connect mains from the 4…20 mA loop circuit