Vaisala PTU200 - Manual (Page 53)

C HAPTER 8_________________________________________________________ TECHNICAL DATA
V AISALA _________________________________________________________________________ 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
2
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