Vaisala HMT330 - Manual (Page 176)

User's Guide _______________________________________________________________________
174 __________________________________________________________________ M210566EN-K
Inputs and Outputs
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC, 50/60 Hz
Start-up time after power-up 3 s
Power consumption at 20 °C (Uin 24VDC)
RS-232 max 25 mA
Uout 2 × 0 ... 1V / 0 ... 5V / 0 ... 10V max 25 mA
Iout 2 × 0 ... 20 mA max 60 mA
display and backlight + 20 mA
during sensor purge + 110 mA max
Analog outputs (2 standard, 3rd optional)
current output 0 ... 20 mA, 4 ... 20 mA
voltage output 0 ... 1 V, 0 ... 5 V, 0 ... 10 V
Accuracy of analog outputs at 20 °C ± 0.05 % full scale
Temperature dependence of the analog outputs ± 0.005 %/°C full scale
External loads
current outputs RL < 500 ohm
0 ... 1V output RL > 2 kohm
0 ... 5V and 0 ... 10V outputs RL > 10 kohm
Wire size 0.5 ... 2.5 mm 2 (AWG 20 ... 14)
stranded wires recommended
Digital outputs RS-232
RS-422/485 (optional)
LAN (optional)
WLAN (optional)
Protocols ASCII commands
Modbus RTU
Modbus TCP
Relay outputs (optional) 0.5 A, 250 VAC, SPDT
Display (optional) LCD with backlight, graphic
trend display
Menu languages Chinese, English, Finnish,
French, German, Japanese,
Russian, Spanish, Swedish