Compu-Cal Battery Changing Directions

and "Pro" version also.

Battery Changing Directions

General Information:

You CAN change your own batteries. The programs/software is "burned' into a chip and therefore it is literally impossible for you to lose your programs. Changing your batteries may not solve the problem you're having with your calculator but it does solve about 95 out of 100 of the problems we get phone calls about.

These directions are for changing batteries in a COMPU-CAL Pro or SE handheld computer that is version 5.0 or higher (i.e. has a hard gray cover that slides off). If you have an older model, please check your manual or call for battery changing directions.Batteries should last for approximately 1 year (120 hours of solid use). Change your batteries when you see random error messages, when the screen shows "INIT. PUSH ENTER" when first turned on, or when the screen starts to dim. However, before assuming your batteries are low:

1. Make sure that the contrast control dial on the right side of the computer is rolled all the way up.
2. Make sure that there are still TWO screws in the back cover and that both are tight.
Be sure to put scotch tape over these screws so they will not be lost if they become loose.
3. Check that the "ram card eject" button on the back is pushed completely left toward the middle of the computer.
4. Remove the back cover,gently tighten (they can "strip-out" very easily) all the inside screws and make sure the batteries are locked into their little cage.
5. If the computer is NOT going to be used for a period of several months or more, remove the batteries since they may leak and cause damage.

Directions:

WARNING: When you change batteries, your enteral (and pediatric formula databases if you have an SE) will revert to the products that were on it when you bought it. All changes that you have made to the databases will be erased! Always record ANY changes you make to these databases on the blank worksheets in the back of your manual. See the directions in your manual for changing formula databases. This is the only part of your software which is affected by battery changing. ALL the programs themselves will remain unchanged and ready for use when the new batteries are in place.

Purchase two new lithium batteries (CR 2032) at a camera store, Radio Shack, or office supply store (Staples, Office Max, Office Depot, etc). Lithium batteries must be used. You will also need a small screwdriver that fits the screws on the back of your computer.
Move the power switch to the off position.
If you have a COMPU-CAL acquired before the summer of 1995, your computer has a large silver "Compu-Cal" label on the back of the computer that must be removed. Peel it off, set it to one side, and then reapply when you reach the end of step 6. Otherwise, on most computers, leave the silver COMPU-CAL label in place.
Leaving the tape covering the two screws on the back of the computer, push your screw driver through the scotch tape and unscrew the screws. Then gently remove the back cover. Press gently down on the plastic battery cover plate latch (at the top of the plate) and move the battery cover plate up toward the top edge of the computer to remove it.
Clean the new batteries with a clean, dry cloth and substitute them for the old batteries. Be sure the batteries are placed in the computer exactly the way the old ones were positioned (i.e. that their + and - signs are correct). If the battery compartment is on your left as you look down at it, the top or farthest away battery should have words showing. The closer one should have its plain side up.
Replace the battery cover plate. Tighten all the visible inside screws of the computer. Put the back cover on. Be sure you hook the top edge of the computer back in place before lowering the edge nearest to you. Screw the back cover on. Tip the computer up and look at the top edge to make certain it is a consistent width all the way across indicating the back cover is on correctly. If not, remove and reattach it. SCREWS ON THE BACK MAY WORK LOOSE OVER TIME. WE SUGGEST YOU KEEP SMALL PIECES OF SCOTCH TAPE OVER THEM AND TIGHTEN INSIDE AND BACK COVER SCREWS EVERY SIX MONTHS. Check to make certain that the "ram card eject" button is pushed completely to the left towards the center of the computer. (If you have removed your older version of our label, replace it now.)
Turn the computer over and turn it on. A zero should appear on the screen OR it may say "busy" in small letters. With it turned on, GENTLY, poke a pen or straighten paper clip tip into the "all reset" hole on the back of the computer and then turn the computer over. Four asterisks will appear on the screen. Press [ENTER] and only one asterisk will remain.
Turn the computer off and on again. A zero will appear on the screen. Press the FA-key. "INIT. PUSH ENTER" will appear on the screen. Press [ENTER]. The screen will flash messages about loading your TF data for about one minute. If you have an SE model then "PF=..." will also flash to indicate that the pediatric formulas are being loaded. Wait until the screen shows "CPn.0x PUSHENTER"or "SEn.0x PUSHENTER." Press [ENTER] again. "FA-PRGM#? E=LST" will now appear on the screen.
The computer is ready to work! Remember you must re-enter any tube feeding changes (and pediatric formulas changes for the SE) you had made since getting your machine.
If you have a problem getting your computer to work after changing batteries please give us a call. If you cannot reach us within an hour, remove the batteries to prevent them from draining their charge.