Thermo Scientific APEX 500 Rx User Manual page 12

Using A Different Input Angle and/or Vertical Drop
If you need to use a different input angle and/or vertical drop because of the way your
production line is set up, the rate at which product flows through the search head
("product speed") will—most likely—be different from 300 feet per minute (91 meters
per minute). For example, if you use a smaller input angle or vertical drop, product
speed will decrease. Conversely, if you use a larger input angle or vertical drop, product
speed will increase.
In most instances, changes in product speed do not significantly affect the ability of the
APEX to detect metallic contaminants (that is, do not affect APEX "sensitivity") when—
the key point—the default settings are used. However, if you discover that sensitivity
has been affected (described below) because you are using a non-standard input angle
or vertical drop, you should change the product speed setting.
In summary, if you use a non-standard input angle or vertical drop, please note the
following.
 The default settings assume that product speed = 300 feet per minute (91
meters per minute).
 The product speed setting should be changed only if sensitivity is adversely
affected—as described in the "Checking APEX Sensitivity" section on page 21 of
this manual.
Adjusting the Input Angle and Vertical Drop
Locate the two black plastic handles (see the photo below and on page 13), which set
the angular alignment and vertical alignment of the APEX, and use them to properly
align the APEX in your production line.
1) Use this handle to set the angular alignment of the APEX.
Page 12 Thermo Scientific—APEX 500 Rx User's Guide