User guide

Troubleshooting and Maintenance
218
890 USE 108 00 August 2001
Conformally Coated Maintenance
Maintaining
Conformally
Coated Products
Use the following information to perform periodic maintenance on any Modicon
conformally coated product. A 2 gram container of Nyogel ships with the conformal
coated PLCs.
All electrical contacts (such as PCB gold edge contacts, field wiring connector
contacts, backplane connectors, and grounding pins), should receive a light
application of Nyogel 759G Contact Lubricant. A typical contact pair should have
an amount applied no greater in size than a sphere 1/16 inch in diameter.
If a conformally coated product requires cleaning, the following products are
recommended:
de-ionized water, with or without mild detergent; MicroCare ProClean MCC-PRO;
or MicroCare MultiClean MCC-MLC;
Nyogel can be ordered from Schneider Automation:
in a 1.0 gram tube (P/N 99-C759-000), or in a 2.0 ounce tube (P/N 99-C759-100)
MicroCare ProClean is available from suppliers in a 12 ounce aerosol spray can
(P/N MCC-PRO); MicroCare MultiClean is available in a 10 ounce aerosol spray
can (P/N MCC-MLC).