Emerson PT4 Instrucciones De Instalación

Emerson Electric GmbH & Co. OHG
Heerstr.111 – 71332 Waiblingen/Germany
Tel.: +49(0)7151 509-0 - Fax.: -200
PT4-xxM
General information and technical data:
Pressure Transmitters convert a pressure into a linear
electrical output signal.
Type Range PS:
Max.
working
bar pressure
PT4-07M -0.8...7 25bar
PT4-18M 0 ... 18 33bar
PT4-30M 0 ... 30 33bar
PT4-50M 0 ... 50 50bar
• All pressures are gauge pressure
• Supply voltage: 8..30V DC, class 2
• Permissible noise & ripple: < 1 V
• Dimensions (mm) see Fig. 3 and 4
• CE-mark under EC Directive
91/263/EC, 92/31/EC, 93/68/EC
• UL Listed: SDFY2/SDFY8: E258370
• Protection (EN 60529) IP65 (with connector PT4-
Mxx)
• Marking:
PT4__65075__R06.doc
www.emersonclimate.eu
!
• Read
Failure to comply can result in device failure,
system damage or personal injury.
• It is intended for use by persons having the
appropriate
PT4-Mxx attempting to install the PT4 make sure
pressure in system is brought to and remains at
atmospheric pressure.
• Do not exceed the specified voltages and
pressures.
• Do not use any other fluid media without prior
PT: approval of EMERSON.
Test • Compliance with local electrical regulations
pressure when wiring.
• Electronic devices are subject to electro
magnetic
27.5bar
components in the system are sufficiently
36bar
protected.
36bar
55bar Mounting:
• Mounting position: as desired. In order to
prevent ice build-up and or condensation on the
PT4 when connected to the suction pipe, it is
p-p
sometimes useful to extend the connection using
a nominal 200mm piece of 6mm/1/4" copper
89/336/EC,
tube from the main suction pipe (Fig.4).
• Do not exceed max. torque of 15Nm for
tightening of PT4 to pressure connection.
• After completion of installation, a test pressure
must be carried out as follows:
- According to EN378 for systems which must
comply with European pressure equipment
directive 97/23/EC
- To maximum working pressure of system for
other applications.
Replacement for R05
Installation Instructions
Pressure Transmitter PT4
Safety instructions:
installation instructions thoroughly.
knowledge and skill.
interference. Ensure
Date: 23.07.2009
Wiring (Fig. 1 and 2):
For proper wiring use cable assembly (PT4-Mxx).
Allow enough space on top of pressure transmitter
to mount plug an-d fasten screw. The plug can be
mounted on pressure transmitter only in one
position (1).
Legends of Fig. 1 and 2:
Before
(WH) - white wire: 4 ... 20 mA output to controller
(BN) - brown wire: connect with controller 24V
(4) is wider for orientation; do not connect
(5) Controller
Cable Colour Code and Pin Connection
Part
PT4-Mxx
(Plug/Cable)
PT3 (Transmitter
that all
with fixed cable)
Note 1: In case electrical connection cable is
extended beyond 6 m, system signal noise and EMC
must be verified by installer for proper operation.
Note 2: Signal line should not be installed parallel
with power lines to avoid electrical interference.
GB
Supply, Signal,
+24Vdc 4-20mA
Brown wire White wire
Brown wire White wire
PCN 863 010