
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.
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