TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages
7
6.1 Heated Rain Gage
Snow Sensor and Heater
Operating Temperature Range:
–20 to 5 °C
Output:
SDI-12
Voltage Requirements
Main Power:
10 to 30 VDC or 12 to 28 VAC
SDI-12 Power:
9.6 to 16 VDC
Total Current Consumption
Snow sensor off, heater off:
6 mA @ 12 V, 0.072 W
Snow sensor on, heater off:
12 mA @ 12 V, 0.144 W
Snow sensor on, heater on:
5.8 A @ 12 V, 70 W
Specifications for the power supply used for the –AC option is
provided in Appendix
(p. D-1)
7. Installation
If programming the data logger with
Short Cut
, skip Section
(p. 7)
(p. 9)
.
Short Cut
does this work for
, for a
Short Cut
tutorial.
7.1 Wiring
7.1.1 TB4, TB4M, or CS700 Connections
TABLE 7-1. TB4, TB4MM, or CS700 Wire Color, Wire Function,
and Data Logger Connection
Wire
Color
Wire
Function
Data Logger
Connections Using a
Pulse Terminal
Data Logger
Connections Using a
Control Terminal
Black
Rain Signal
P
,
P_SW
, or
U
1
(Pulse Terminal)
C
(Control Terminal)
White Rain Signal
Reference
⏚
(Analog Ground
)
5 V
Clear
Shield
⏚
(Analog Ground
)
⏚
(Analog Ground
)
1
U
and
C
terminals are automatically configured by the measurement instruction.
7.1.2 CS700H Heated Rain Gage Connections
The CS700H will only communicate over SDI-12 when both
its sensor cable and power cable are connected.
The CS700H has both a sensor cable and a power cable (FIGURE
).
NOTE
CAUTION