Kaman ThreadChecker - Manual (Page 2)

860510-001
Page 2 of 2
1. Connect the sensor and power source to the electronics. Allow the system to warm up for a
minimum of 5 minutes.
2. With the sensor in ‘air’ (i.e. not in a hole or near any conductive material), press and hold the
‘Teach’ button until the Thread LED blinks fast then release (more than 1 second but less than
10 seconds), the Thread LED should blink slowly.
3. Position the sensor tip in the threaded hole and momentarily press the ‘Teach’ button. The
Status LED will blink fast.
4. Position the sensor in an unthreaded or bad hole and momentarily press the ‘Teach’ button. The
LED should be solid red indicating no threads present. The system is now calibrated and ready
for use.
This configuration will be retained in memory. If the sensor, thread size, or material are changed, the
teach sequence must be performed again.
For best performance the sensor tip should be centered in the holes during the teach operation
sequence and in normal operation.
Switched Output
This is an opto-coupled, solid-state relay. The system is shipped from the manufacturer with the switch
in standard mode as a ‘window’ comparator. The switch will be closed (to ground) when it detects a
thread (or “good” part), otherwise, the switch will be open.
The switch can also be set to operate in ‘compatibility’, or level comparator mode. In this mode, the
switch is open when detecting no thread, and closed (to ground) when detecting a thread (or “good”
part).
To change modes, press and hold the ‘Teach’ button on power up.
To invert switch operation (for either mode), press and hold the ‘Teach’ button for more than 10 seconds
after the system has been powered on.
Front Panel LED’s
There are two bi-color LED’s on the front panel of the electronics. Their indications are as follows.
POWER LED
Green System is running with no faults
Red Sensor not recognized or is disconnected. If the sensor is connected and this
condition persists after a teach sequence, the sensor may be faulty.
Red Flashing The system has a fault. Possible sources:
Calibration error with good and bad points too close together.
Input voltage not within specified range.
System not warmed up properly prior to calibration.
Yellow System is being calibrated or the “Teach” button is pushed
Off System has no power or is otherwise faulty