4-6              Electronic Calibration Modules Reference Guide
Use, Maintenance, and Care of the Devices
Cleaning Connectors
4-
Cleaning Connectors
Clean connector interfaces prolong connector life and produce more accurate 
and repeatable measurements. 
Cleaning Coax Connectors
1. Use compressed Air or Nitrogen
Use compressed air (or nitrogen) to loosen particles on the connector 
mating plane surfaces. 
You can use any source of clean, dry, low-pressure compressed air or 
nitrogen that has an effective oil-vapor filter and liquid condensation trap 
placed just before the outlet hose. 
Ground the hose nozzle to prevent electrostatic discharge, and set the air 
pressure to less than 414 kPa (60 psi) to control the velocity of the air 
stream. High-velocity streams of compressed air can cause electrostatic 
effects when directed into a connector. These electrostatic effects can 
damage the device. For additional information refer to “Electrostatic 
Discharge” on page 4-1 earlier in this chapter.
Always use protective eyewear when using compressed air or 
nitrogen.
The following cleaning procedure can be used for most coaxial connectors. 
Keep isopropyl alcohol away from heat, sparks, and flame. Store in a 
tightly closed container. Isopropyl alcohol is extremely flammable. In 
case of fire, use alcohol foam, dry chemical, or carbon dioxide; water 
may be ineffective.  
Use isopropyl alcohol with adequate ventilation and avoid contact 
with eyes, skin, and clothing. It causes skin irritation, may cause eye 
damage, and is harmful if swallowed or inhaled. It may be harmful if 
absorbed through the skin.  
Wash thoroughly after handling. In case of spill, soak up with sand 
or earth. Flush spill area with water. 
Dispose of isopropyl alcohol in accordance with all applicable 
federal, state, and local environmental regulation.