Campbell Scientific KH20 Krypton Hygrometer - Manual (Page 9)

KH20 Krypton Hygrometer
4. Connect the three cables to the bottom of the electronics box around the
U-bolt on the rain shield (see Figure 3). If there is not enough room for
the connectors around the U-bolt, make sure the electronics box is
mounted at a highest possible position (see step 2).
FIGURE 3. Attaching cables to the electronics box.
5. Place the front cover back on the rain shield and tighten the two pan-head
screws to secure it in place.
6. Gather any loose cables and tie them up, using cable ties, onto the tripod
or tower mast.
4. Wiring
The KH20 sensor is shipped with a power/signal cable with a 25 ft standard
lead length. Table 1 shows the connections for the KH20 to the CR1000,
CR3000, and CR5000.
TABLE 1. Datalogger Connections for Differential Measurement
Function Wire Color CR1000/CR3000/CR5000
KH20 Signal + White Differential Input (H)
KH20 Signal - *Black Differential Input (L)
KH20 Power + Red 12V
KH20 Power - Black (from Red/Black set) G
Shield Clear
*Jumper to with user supplied wire
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