
5 IOM-DPT-A: FEB 2014
Appendix Exd.01
In danger zone don’t unscrew transmitter covers and don’t change the display position or
its back lighting.
In case of transmitter calibration outside danger zone is possible communicator connecting to
<SIGNAL+> and <TEST+> terminals. Transmitter is furnished in communication resistor (R
D
= 240Ω),
closed with jumper at <SIGNAL-> and <TEST-> terminals installed by manufacturer. R
D
resistor can be
use then, when it is necessary to communicate with transmitter from its terminals and the load
resistance (Ro) in current loop is lover then 250Ω. Than <SIGNAL-> and <TEST-> terminals have to
be open.
Permissible gap of joint is smaller than this was defined in norm EN 60079-1:2008 and can not be
greater than passed value on fig. 7.
Blocking cover method before unscrewing and plumbing possibility is shoved at fig 8.
It is not permitted to repair or otherwise interfere with the transmitter’s electrical circuits
in any way. Damage estimation and repair possibility may be assessed by the
manufacturer or another authorized party only.
Table 1 Permitted packing glands.
E1FW, E1FX/Z,
E2FW, E2FX/Z
PX2K, PXSS2K,
PX2KX, PXB2KX
Table 2. permitted plugs
*) for special cable only.
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