CATALOGUE release 8.7

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Products designed for industrial applications.
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Pressure switches, transducers, pressure indicators CATALOGUE
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Pressure switches, Transducers and
Pressure Indicators
Series PM: adjustable-diaphragm pressure switches,
with setting visual scale, with exchange contacts
Series TRP: electro-pneumatic transducers
Series 2950: pressure indicators, ports M5
Series PM diaphragm pressure switches
are available with NC (normally closed)
contacts and with NO (normally open)
contacts.
Series PM681 pressure switches
with setting visual scale comply with
EN60730 standards and are suitable for
signaliing pressure through a normally
closed Reed contact.
A regulating screw, which can be
adjusted using a small screwdriver,
allows the switch to be set to the
required pressure.
The calibrated diaphragm enables an
electrical signal to be generated or
inhibited depending on the pressure set.
GENERAL DATA
Construction with adjustable diaphragm
Ports R1/8, G1/4 (Serie PM)
tube 4/2 (Series TRP)
M5 (Series 2950)
Mounting using thread in body
Max. nr. of pulses per 1’ 200
Pressure 1 ÷ 10 bar max.
Operating temperature -5°C ÷ +60°C
Max. power 100 VA
Voltage 220 V
Isolation voltage 1500 V
Max current 0.5 A
Pressure switches protection class IP40 (Mod. PM681-1, PM681-3)
IP54 (Mod. PM11-NC, PM11-NA)
IP65 (Mod. PM11-SC)