Vaisala PTB330 - Manual (Page 129)

Chapter 7 ____________________________________________________________ Technical Data
VAISALA ______________________________________________________________________ 127
Inputs and outputs
Table 26 Inputs and outputs
General
Supply voltage 10 ... 35 VDC
Supply voltage sensitivity negligible
Serial I/0 RS-232C, RS-485, RS-422
Pressure units hPa, mbar, kPa, Pa inHg,
mmH
2
O, mmHg, torr, psia
Acceleration sensitivity negligible
Pressure connector M5 (10-32) internal thread
Pressure fitting barbed fitting for 1/8" I.D. tubing,
quick connector with shutoff
valve for 1/8" hose
Display (optional) LCD with backlight, graphic
trend display of any parameter
Menu languages English, German, French,
Finnish, Spanish, Swedish,
Japanese, Russian
Power control 5 VDC to supply voltage
Power consumption @ 20 °C (Uin 24 VDC, one pressure sensor)
RS-232 typ 25 mA
RS-485 typ 40 mA
Uout typ 25 mA
Iout typ 40 mA
Display and backlight +20 mA
Analog output (optional)
Current output 0 ... 20 mA, 4 ... 20 mA
Voltage output 0 ... 1 V, 0 ... 5 V, 0 ... 10 V
Accuracy class differences
Class A Class B
Resolution 0.01hPa 0.1 hPa
Settling time at power-up
(one sensor) 4 s 3 s
1 s Response time (one sensor) 2 s
0.2 s (fast measurement mode)
Pressure 500...1100 hPa 50...1100 hPa
Accuracy at +20 °C ±0.30 hPa ±0.40 hPa
Accuracy at -40 ... +60 °C ±0.60 hPa ±0.75 hPa