Vaisala DMT346 - Manual (Page 164)

User's Guide _______________________________________________________________________
164 __________________________________________________________________ M210762EN-G
Table 42 Inputs and Outputs Specifications (Both Models)
Property Value
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC 50/60 Hz
Default start-up time
initial reading after power-up 3 s
full operation after sensor Purge and
AutoCal Approximately 6 min
Power consumption at 20 °C
(U
in
24 VDC)
U
out
2 × 0 ... 1V / 0 ... 5V / 0 ... 10V Max 25 mA
I
out
2 × 0 ... 20 mA Max 60 mA
RS-232 Max 25 mA
Display and backlight + 20 mA
During sensor purge and warming + 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 R
L
< 500
Ω
0 ... 1V output R
L
> 2 k
Ω
0 ... 5V and 0 ... 10V outputs R
L
> 10 k
Ω
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
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