Thickness & Diameter Adjustment
For The X-20, 21 and X-22 X-Metal Xeptor
 

Introduction (… AND why THIS is important) 
The X-20 Xeptor significantly raises the ability to measure and discriminate between coins through precision optical diameter measurement sensors, edge and center of coin metal alloy measurement. To benefit from these new measurement capabilities we must also do a little better in coin position control than formerly required when only metal alloy was being measured. One cannot expect imprecise coin position control to allow precise and repeatable measurement of the coin properties any more than one could expect an accurate measurement of the length of a fish if you won't put the ruler up against the fish. You can't measure a floppy fish!

Thickness Setup
Figure 1 of the X-20 Xeptor is a side view showing a series of eight holes and a sliding adjustment with a detent that centers itself over one of the selected holes. The dimensions referring to each of the eight holes is the chute thickness achieved at each position of the sliding adjustment. A good rule of thumb would be to set the adjustment for .010" to .020" more than the thickest coin in the intended coin set.

Diameter Considerations
The X-20 Series sensor configuration covers the .65" to 1.47” diameter range in just two models; the X-20 for smaller coins, and the X-22 for larger coins. The X-21 optionally just covers the mid range. To ensure that the smaller coins are properly centered for the sensors, the X-20 has factory installed coin chute rails to restrict the horizontal movement of the coin. Very small coins may be accepted by the X-22, but with poor reliability. Large coins, over 1.11" in diameter will not fit through the X-20 and will cause coin jams. Look at the model number label on the top edge of the Xeptor to determine which one you have.

Ø      X-20 Range: 0.65" to 1.110"  (16.5mm  to 28mm

Ø      X-21 Range: 0.80" to 1.255"  (20mm  to 31mm

Ø      X-22 Range: 1.02" to 1.470"  (26mm  to 37mm)

Note: An X-20, X-21, and X-22 differ only in the range of coin diameters they can measure, all other properties are identical. Thus, if one orders an X-20 with coin chute diameter spacer #0, or #2, it is equivalent to having ordered an X-22 or X-21 respectively. For ease in field identification, X-20, X-21, and X-22 labels will be used.

Thickness Setup & Coin Signature Downloading
The Coin Selector hand-held coin programming units are described later in Section 3.5 of this manual. When using Coin Selectors, or other IDX products that download Coin Signatures to Xeptors, special care must be taken with regard to the relationship between thickness setup and calibration of the X-20 Xeptors.  In the factory, we must calibrate each X-20 Series Xeptor with standard reference coins that provide it sufficient information with which to adjust standard Coin Signature data for use in the Xeptor. This must be done because of slight component variations from unit-to-unit, and because the thickness adjustment may be different, thus causing the metal alloy sensors to read the coin slightly different from the Xeptor used to generate the Coin Signatures.

 For all of the above reasons the following very important rule applies: In order to successfully use an IDX Coin Selector (or other Coin Signature downloading products), one must have the Xeptor coin chute thickness setup the same as when the Xeptor was calibrated in the factory before shipment. Changes to the thickness setup may reduce the acceptance reliability or cause total rejection altogether. Please note, however, that if you manually program coins into the Xeptor, the factory calibration is irrelevant as it is not required as part of the manual coin learn process.

 Starting in year 2005, the factory started placing a mark adjacent to the sliding adjustment to indicate the location of the thickness adjustment when the Xeptor was calibrated so that you can be sure it is in the expected location so as to achieve successful download and use of coin signatures. Should you require a change in the thickness setting for calibration of some Xeptors, please contact technical support at the factory.