Pressure Transducer; Control Terminals And Display Unit - Xylem hydrovar smart Bedienungsanleitung

3.4

Pressure transducer

The sensor of this transmitter is a piezoresistive silicon pressure sensor, mounted on a tape
(TAP) freely floating in an oil chamber. The pressure is transferred to the sensor by a
separate steel diaphragm in the oil chamber.
Specification
Range (FS):
Max. pressure – P
max
Class of protection IP 67
Output signal:
Supply:
Operating temperature:
Storage temperature:
Cable length:
Material:
Body: 1.4435
Diaphragm: 1.4435
Thread: G ¼"
Plug / cable
Pressure transmitter
Note: To guarantee the protection class IP67, the rubber gasket has to be
mounted between the pressure transducer and the plug!
4

Control Terminals and Display unit

All externally used cables must to be shielded. Do not connect the ground of the electronic
components to other potentials (all electronic ground and GND of the RS 485-interface are
connected together internally).
10 bar 16 bar
: 20 bar 30 bar
4...20 mA; 2-wire
8 – 28 VDC
-10...80°C compensated (max. –40...135 °C)
-40...135°C
2 m (screen)
Electrical connection:
White = Analogue output signal (+ Out) (1)
(2) not used
Brown = Supply voltage (+ VCC) (3)
Gasket
Gasket Viton ®
Measures in mm
25 bar 40 bar
50 bar 80 bar
12
PA-22S (4-20mA)