Vaisala PTU200 Series Betriebsanweisung PDF herunterladen (Seite 53)

CHAPTER 8_________________________________________________________ TECHNICAL DATA

VAISALA _________________________________________________________________________ 49

General

(* factory settings)

Temperature range

operating -40 ... +60 ºC

with local display 0 ... +60 ºC

storage -40 ... +60 ºC

with local display -20 ... +60 ºC

Humidity range non-condensing

Supply voltage 10 ... 30 VDC, reverse polarity

protected

Supply voltage sensitivity negligible

Current consumption less than 30 mA

with local display less than 30 mA (without

backlight)

less than 50 mA (with backlight)

hardware shutdown mode less than 0.1 mA

Serial I/O full duplex RS 232C * or

bidirectional TTL level or

half duplex two-wire RS 485/422

code ASCII

parity even*, odd, none

data bits 7* or 8

stop bits 1* or 2

Baud rates 300, 600, 1200, 2400, 4800, 9600*

Electrical connections

excitation supply, GND, CTRL (for

shutdown)

serial communication TX, RX, GND, TXD, RXD, GND,

TXD inverted, RXD inverted,

GND, RS 485/422HI,

RS485/422LO

Units

pressure hPa*, kPa, Pa, mbar, bar, inHg,

mmHg, torr, mmH

O, psia

humidity %RH

temperature °C*, °F

Resolution 0.1 hPa*, 0.1 %RH, 0.01 °C

Settling time at power-up class A class B

one pressure sensor 6 seconds* 5 seconds*

Acceleration sensitivity negligible

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 63 64

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