Campbell Scientific CR3000 Micrologger - Manual (Page 44)

Section 4. Quickstart Tutorial
44
4.2.2 Hardware Setup
Note The thermocouple is attached to the CR3000 later.
4.2.2.1 Internal Power Supply
With reference to figure Power and RS-232 Connections (internal-power supply)
(p. 44),
some CR3000 dataloggers are shipped with a power supply internal to the
removable base. This internal power supply may use alkaline batteries or sealed-
rechargeable batteries. For more information and installation procedures, refer to
the Alkaline Battery Base
(p. 84)
or Sealed-Rechargeable Battery Base
(p. 85)
section.
When the base is in place, move the on/off switch on the side of the CR3000 base
to the On position. If using the sealed-rechargeable battery base, remember not to
leave the CR3000 running too long without connecting the primary power source.
Figure 13: Power and RS-232 connections (internal-power supply)
4.2.2.2 External Power Supply
With reference to the figure Power and RS-232 Connections (external power
supply)
(p. 45),
1. Remove the green power connector from the CR3000.
2. Verify that the red wire on the PS100 is attached to a PS100 12V terminal, and
the black wire is attached to a PS100 G terminal.
3. Verify the on/off switch on the PS100 is in the Off position.
4. Attach the red wire from the PS100 to the terminal labeled 12V on the green
connector.