Campbell Scientific DCP100 GOES Data Collection Platform - Manual (Page 41)

I-1
APPENDIX I. 21X PROM REPLACEMENT PROCEDURE
This appendix covers the procedure for replacing the firmware (PROM) in a Campbell Scientific 21X or
21XL Micrologger. For a nominal fee, Campbell Scientific will install PROMs in 21X(L)s that are returned
to the factory; request a Returned Materials Authorization (RMA) from Campbell Scientific.
CAUTION: This procedure erases data and programs stored in the 21X or 21XL. Before you begin,
transfer to a computer or storage module all data and programs you wish to save. For information
about transferring data and programs between the 21X(L) and a computer, see the 21X(L)
Operator’s Manual.
To prevent components from being damaged by the discharge of static electricity, the PROMs
should be replaced at a grounded work station by a person wearing a grounding strap.
I.1 TOOLS REQUIRED
• Phillips screwdriver #1
• PROM puller
or
Flat-bladed screwdriver (shipped with
21X(L))
• New PROMs
I.2 PROCEDURE
1. Confirm that all necessary data and
programs stored in the 21X(L) have been
saved to a computer or storage module.
2. Flip the ON/OFF switch (on the side of the
21X(L)) to the OFF position.
3. Use a Phillips screwdriver to remove the
screws on both sides of the 21X(L)
faceplate (Figure I-1).
1 2 3 A
4 5 6 B
7 8 9 C
* 0 # D
I.D. DATA
21X MICROLOGGER
H L
1
H L
2
H L
3
H L
4
H L
5
H L
6
H L
7
H L
8
1 2 3 4 1 2 1 2 4 5 +12 3 6 1 2 3 4
EXCITATION CAO CONTROL PULSE INPUTS
SERIAL I O
MADE IN USA
S N 10800
6145, 6146, 6147
FIGURE I-1. Removing Faceplate Screws
4. Remove the faceplate from the base by
pulling the faceplate straight out from the
base (
① on Figure I-2).
Pannasonic
Pannasonic
Pannasonic Alkaline
Pannasonic Alkaline
Pannasonic
Pannasonic
Pannasonic Alkaline
Pannasonic Alkaline
1 2 3 A
4 5 6 B
7 8 9 C
* 0 # D
I.D. DATA
21X MICROLOGGER
H L
1
H L
2
H L
3
H L
4
H L
5
H L
6
H L
7
H L
8
1 2 3 4 1 2 1 2 4 5 +12 3 6 1 2 3 4
EXCITATION CAO CONTROL PULSE INPUTS
SERIAL I O
MADE IN USA
S N 10800
6145, 6146, 6147
1
1
2
FIGURE I-2. Separating the Faceplate from
the Base
CAUTION: The faceplate is still connected
to the base by wires from the power supply.
Do not pull the faceplate more than 2” away
from the base.
5. Once the faceplate has been disengaged
from the mounting posts, rotate the left side
of the faceplate away from the base to
expose the battery pack (
② on Figure I-2).
6. Disconnect the Molex connector to separate
the base from the faceplate (
① on Figure I-3).
7. Rotate the faceplate onto its face ( ② on
Figure I-3).