4-8              Electronic Calibration Modules Reference Guide
Use, Maintenance, and Care of the Devices
Cleaning Connectors
4-
2. Dispense a drop or two of isopropyl alcohol in the center of the cloth.
3. Retract the connector sleeve threads to expose the connector interface.
4. Gently press the contact end of the connector into the moistened cloth 
and rotate the connector. The cloth scrubs away dirt on the connector 
interface without damaging it.
5. Blow the connector dry with a gentle stream of compressed air or 
nitrogen.
6. When not in use, keep the cloth in a plastic bag or box so that it does not 
collect dust or dirt.
For fixed connectors (i.e., connectors attached to a device that cannot be freely 
moved):
1. Fold a lint-free cleaning cloth several times.
2. Moisten the cloth with isopropyl alcohol.
3. Press the moistened cloth against the connector interface and rotate the 
cloth to clean the connector.
4. Blow the connector dry with a gentle stream of compressed air or 
nitrogen.
Cleaning a Removed Center Collet
Any time you remove the center conductor collet, clean and inspect the interior 
surfaces as described in “Visual Inspection” on page 4-3.