User guide

Needle Sensor 11-3
Tactile Sensor
The NSZ Series needle sensor uses an additional tactile sensor to determine an even more precise Z
height. The Dispensing Head lowers and touches the needle tip to the Tactile Sensor, and then the needle
tip height is reported to FmNT.
Tactile Sensor Error
1. Gently lift the “hat” from the tactile sensor (Figure 11-2).
2. Use isopropyl alcohol and a soft cloth to remove any residual fluid from around the
circumference of the “hat” and around the tactile sensor opening. Carefully remove any residual
fluid from the sensor tip as well.
3. Replace the “hat.”
4. In the Main Window, click on
Tools.
5. In the Tools Window, click on
I/O Test.
6. Click on
Dispenser.
7. Locate the I/O for tactile sensor.
8. Gently press down on the tactile sensor and make sure that the bit toggles ON and OFF.
> If the bit does not toggle ON and OFF, the Needle Sensor may need to be replaced. Contact
Asymtek Technical Support.