Conair GB Recalibration Of Load Cells, The sequence of keystrokes is as follows, Press, Password

RECALIBRATION OF LOAD CELLS

This unit was properly calibrated at the factory to match the load cells that were supplied with it. If you are going to recalibrate, note the following.

Recalibration can not be done until the Recalibration flag is turned ON. The proper sequence of keystrokes is given below.

BE SURE the load cell plug is plugged into the side of the controller. BE SURE the weigh bin is hanging from the load cells freely.

BE SURE the air line to the dump valve is connected as it would be during normal operation. (A disconnected air line adds weight.) Air pressure to the line is not necessary.

BE SURE there is nothing touching the weigh bin or air line. BE SURE the bin is EMPTY when ZEROING the load cells,

ZERO WT. must be done before FULL WT. Since changes in ZERO WT will also shift the FULL WT scale by the same amount, it may not be necessary to go any farther than this.

When SETTING FULL WEIGHT, BE SURE you know the exact weight (in GRAMS) that you are adding to the bin. Place this weight in the bin and then press the FULL WT. key. Five dashes (FUL-----) will be displayed.

Enter the EXACT weight in GRAMS that you have placed in the bin. The weight should be close to the designed full bin weight; (400, 1000, 2000, 4000, 9000, or 18000). The example below uses 2000.

When done, their is no need to turn the Calibration Flag off. The next time power is turned off this flag will be reset to OFF.

The sequence of keystrokes is as follows:

Press:	*	Display will say:	(PASSWORD)
Press:	22222	Display will say:	(P	x)
Press:	*99	Display will say:	(CAL	OFF)
Press:	*	Display will say:	(CAL	ON )
Press:	EXIT	Display will say:	(P	x)
Press:	ZERO	Display will say:	(--WAIT--)
		followed by:	(P	0)

Place a 2000 (or 1000, 4000 or 9000) Gram weight in the bin.

Press:	FULL	Display	will say:	(FUL-----)
Press:	2000	Display	will say:	(--WAIT--)
		followed by:		(P 2000.0)
		If YOUR	weight is not		exactly 2000 grams,
		then enter the ACTUAL			weight that YOU use.
Press:	EXIT	Display	will say:	(	2000.0)
Remove weights:		Display	will say:	(	x.x)

Actual displayed weights may be plus or minus a few grams.

After FULL weight calibration, if the display says (BAD CELL), the weight you are using does not match the weight you entered, the weigh bin is not free to move, OR the load cells are bad.

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