Setting Contaminant-Detection Parameters; Establishing Noise Thresholds With No Product Present - Thermo Scientific APEX 100 User Manual

Setting Contaminant-Detection
Parameters
This section assumes you have followed all the instructions from the start of the "Setting
Up Conveyor Applications" to this point. The reason for this is that, before you can
calibrate your detector, the parameters described above must already have been set.
This section tells you how to do the following.
• Set up a monitoring baseline for the detector by calibrating the X and R noise
thresholds, which must be done when no product is present in the search head.
• Calibrate the speed filter using a ferrous test stick (for most applications, use the
2.0 to 4.0 millimeter test stick). If the red indicator light on the control panel
lights when you pass the 4.0 millimeter test stick, use a smaller size.
• Have the detector learn the appropriate detect level, phase angle, and peak
signal settings by passing uncontaminated product through the search head.
• Have the detector do a Quality Test learn, if applicable.
•
Have the detector do an AuditCheck learn, if applicable.
Once you have finished this section, your detector will be set up and ready to go to work
monitoring your product for the presence of metallic contaminants.

Establishing Noise Thresholds with No Product Present

Before you can establish noise thresholds for the X and R signals, you must do the
following.
• Turn on the conveyor.
• Remove all product from the conveyor.
Now that the conveyor is running and no product is present in the search head, follow
the instructions below to calibrate the detector's settings for the X and R noise
thresholds.
1) Make sure the Main Menu is displayed.
Product Name
(continued...)
Thermo Scientific APEX User's Guide Page 47