User’s Guide ______________________________________________________________________
176 _________________________________________________________________ M211840EN-C
Inputs and Outputs
- The input can be wiring type, input impedance, or pull-up resistor value.
Table 34
Inputs and Outputs
Property
Description/Value
Operating voltage
6 ... 24 VDC (-10 % ... +30 %))
Average current consumption
Minimum
0.1 mA @ 12 VDC (SDI-12 standby)
Typical
3 mA @ 12 VDC (with default measuring
intervals)
Maximum
15 mA @ 5 VDC (with constant
measurement of all parameters)
Heating voltage
DC, AC, full-wave rectified AC
12 ... 24 VDC (-10 % ... + 30 %)
12 ... 17 VACrms (-10 % ... +30 %)
Typical heating current
12 VDC: 0.8 A
24 VDC: 0.4 A
12 VACrms: 1.1 A
17 VACrms: 0.8 A
Digital outputs
SDI-12, RS-232, RS-485, RS-422
Communication protocols
SDI-12 v1.3, ASCII automatic & polled,
NMEA 0183 v3.0 with query option
Table 35
Analog Input Options
Parameter
Element
Range
Input
Excitation
Resolution
Temperature
PT1000
Resistor
800 ... 1330
Ω
2-wire
4-wire
2.5 V
16 bits
Solar
Radiation K&Z
CMP3
Thermopile
0 ... 25 mV
4 M
Ω
-
12 bits
Level
measurement
IRU
Voltage
0 ... 2.5 V
0 ... 5 V
0 ... 10 V
> 10 k
Ω
-
12 bits
Tipping Bucket
RG13
Frequency
0 ... 100 Hz
18 k
Ω
3.5 V
Содержание WXT536
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