Kaman ThreadChecker User Manual

Page 7

Kaman Aerospace Corporation

PART NO: 860510-001A

Kaman Precision Products

Last Revised: 6/8/11

Measuring & Memory Systems

217 Smith Street

Middletown, CT 06457

www.kamansensors.com or 860-632-4442

Page 7 of 13

The LED’s
There are two bi-color LED’s on the system. The power LED (labeled PWR) displays
whether the system is running or has a fault. The status LED (labeled THREAD)
displays the limit output and can flash at different calibration points.

The function of the status LED in the Thread Checker is to indicate the state of the
switched output. In ‘compatibility’ mode the status LED output mirrors the switch state.
When the LED is “off” the switch output is pulled to ground. When the LED is “on” the
output is open.

In standard ‘Window’ comparator mode, the status LED functionality is NOT affected by
the limit inversion and will continue to operate with green indicating a ‘good’ or
threaded hole, red indicating a ‘bad’ or non-threaded hole, and off as no target.

POWER LED
Green

System is running with no faults

Red

Solid red on the power LED means that it does
not recognize the sensor or it is disconnected.
If the sensor is connected and this condition
persists after a “teach” then the electronics
does not recognize the sensor and it may be
faulty.

Red Flashing Fast

The system has a fault (calibration error, power
input too low, etc.) – Most likely calibration error
with points too close together

Yellow

The system is being calibrated or the button is
pushed

Off

System has no power or is otherwise faulty