Delta Controls DPR-2000 - Manual (Page 9)

A 7 IOM-DPCDPR-A: FEB 2014
i
Appendix Exi
5.5. Temperature of measured medium can not cause increase temperature housing of transmitter above
the ambient temperature Ta specified for a given category
5.6. Supply voltage min. 13,5VDC **
5.7. Load resistance:
from 28V linear supply
Ro max [Ω] = for transmitter without display back lighting
from a source with “trapezial” or “rectangular” characteristic supply
Ro max [Ω] =
*) barrier resistance
**) 16,5V for transmitter with display back lighting
6. How to connect Ex transmitters
DPC…, DPR…
The transmitter and other devices in the measuring loop should be connected in accordance
with the intrinsic-safety and explosion-safety regulations and the conditions for use in
dangerous areas.
Failure to observe the intrinsic-safety regulations can cause explosion and the resulting hazard
to people.
The transmitter is equipped in additional communication resistor RD = 240
Ω
During normal operation terminals <Signal –> and <Test –> are shorted.
RD resistor is used when you wish to communicate with the transmitter locally (from its terminals)
and Ro < 250

. Terminals <Signal –> and <Test –> must be opened.
Transmitter electrical installation should be realised with engineering standard requirements.
It is not allowed to repair or otherwise interfere with the transmitter’s electrical circuits in any
way. Damage and possible repair may be assessed only by the manufacturer or another
authorized party.
Special conditions for safe use:
- Version of transmitter with surge arrester, marked on the plate "SC, SA", does not meet the
requirements of Section 10.3 of the EN 60079-11:2012 (500Vrms). This must be taken into account
when installing the equipment.
+
_
TEST +
SIGNAL
Ex-Milliammeter
mA
_
Aplisens KAP-03Ex Communicator
RD
TEST

F1
PF
F4 F3
F4 PV
F2
RE
ABC
STU
7
JKL 4
1
@%& 0 8 GHI 9
+/ * PQR 6 5
YZ#
DEF
MNO
VWX 2 3 .
Jumper
Ro
+
_
a Ex power supply
see p.5.
Safe area

In hazardous areas, connections
to the control terminals must be
made using only instruments which
are permitted to be used in such areas.
Hazardous area
To measure the current in the transmitter without
disconnecting the signalling circuit, connect
a milliammeter to control sockets TEST+, TEST-.
28V – 13.5V** – (300Ω*
*
0,02A)
0,0225A
Usup. – 13.5V
0,0225A
Delta Controls KAP-03Ex Communicator