Delta-controls DPT-2000 Uživatelský manuál stáhnout pdf (Strana 11)

9 IOM-DPT-A: FEB 2014

Appendix Exi

5.4. Input inductance and capacity: Ci = 20nF, Li = 1,1mH

5.5. Supply voltage min.: 13.5VDC **

5.6. 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

5.7. Temperature

Temperature of transmitter’s surface from regard temperature of shield part as on figure in point 2.3. can't

surpass the admissible values of temperatures for temperature class of steam and gases according with

standard PN-EN 60079-0.

Simultaneously the casing temperature should not surpass max. temperature value Ta definite for

conditions power supply in Certificate Exi and p.5 of Appendix Exi.

6. How to connect Ex transmitters DPT-2000ALW.

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.

In hazardous areas, connections

to the control terminals must be

made using only instruments which

are permitted to be used in such areas.

Ex-Milliammeter

TEST

To measure the current in the transmitter without

disconnecting the signalling circuit, connect

a milliammeter to control sockets <TEST+>, <TEST->.

Hazardous area Safe area

Aplisens KAP-03Ex Communicator

TEST

SIGNAL



VWX

MNO

DEF

YZ#

5 6

PQR

GHI

8 0

@%&

JKL

STU

ABC

PV F4

F3 F4

Jumper

a Ex power supply

see p.5.



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.

28V – 13.5V** – (300Ω*

0,02A)

0,023A

Uzas. – 13.5V**

0,023A

Delta Controls KAP-03Ex Communicator

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 36 37

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Delta-controls DPT-2000 Uživatelský manuál Strana 11

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