CodeWATCH
Basic

Poka Yoke (Mistake Proofing) 

What Is Poka Yoke (POH-kah YOH-kay)?
Poka yoke is also known as mistake proofing, error proofing, error avoidance, and fail-safing. Poka yoke is one of the main components of Shingo's Zero Quality Control (ZQC) system -- the idea being to produce zero defective products. One way this is achieved is through the use of poka yoke; a bunch of small devices that are used to either detect or prevent defects from occurring in the first place. These poka yoke methods are simple ways to help achieve zero defects.

How Does the CodeWatch Basic Fit In?

CodeWatch Basic works as a detection based poka yoke. CodeWatch Basic prevents mixed products by scanning the product barcode and matching it against the expected product. Mismatches or unreadable barcodes can stop the production line, flash the included LED lamp, and sound the included alarm.

Examples

Reversed Products:

The scanner is set to capture the barcode only when it is in the correct position. A barcode in the wrong position will cause a no read condition in the CodeWatch Basic. The CodeWatch Basic can be set to stop the production line and sound an alarm to alert the operator to the condition so corrective action can be taken.

Incorrect product on the production line:

CodeWatch Basic is set up with a master product code. The scanner captures the barcode and sends it to the CodeWatch Basic. If the barcode data matches the master code, no action is required. If the barcode data does not match the master code, a relay output fires to stop the production line and the red LED flashes to signal the operator to the error condition so the appropriate action can be taken.

The standard package includes everything you need for match code operations: