EasyManuals Logo

Dräger P3U User Manual

Dräger P3U
140 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #15 background imageLoading...
Page #15 background image
15
Electrical connections
Connection to the control unit
Connect shield to earth of central unit (e.g. housing, earth bar, etc.).
3-wire connection
Connection to central device with at least 3-wire cable, 0.5 (AWG 20) to 2.5 mm
2
(AWG 13).
Installing the 4 to 20 mA current loop on the transmitter
Install the 3-wire connection cable in the cable gland, cut it to length and strip off
the insulation (about 80 mm).
Shorten the shield (if installed) to prevent short-circuiting:
Connect cable
1 4-pin terminal for Dräger Polytron 7000 – observe polarity.
Slide connecting terminal back into holder.
Secure cable in holder.
Fold up the installation notes and place them in the Dräger docking station for fu-
ture use during commissioning.
Refit raincover (protection against dust and splashing water).
Connection to the control unit
Connect shield to earth of central unit (e.g. housing, earth bar, etc.).
Connecting the Dräger Polytron 7000 transmitter to a Dräger control unit
(such as Regard, QuadGard, Unigard or Polytron):
Further information about the connection can be found in the instructions for
the Dräger control unit.
When operated from the mains supply, the Polytron control unit provides a supply
voltage of at least 20 V. This must be taken into account when determining the
maximum cable length (see the table on page 19).
Unigard is not suitable for the connection of a Polytron 7000 transmitter
equipped with a relay or pump module.
Caution:
In the case of PROFIBUS devices, the shield must only be connected on one
side of the cable to earth.
Attention:
The supplied ferrite sleeves are to be used when installing the transmitter in
three-wire technology.
A ferrite sleeve must be pushed onto each core prior to connecting the cable
to the four-pole terminal in the docking station.
01123758_1.eps
1
X8
+24 V
0 V
0 V
Signal

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Dräger P3U and is the answer not in the manual?

Dräger P3U Specifications

General IconGeneral
BrandDräger
ModelP3U
CategoryTransmitter
LanguageEnglish

Related product manuals