2.10.6.11 Conduct damp heat, steady state test

This test is conducted to verify compliance with the provisions in R 60-1, 5.6.1 or R 60-1, 5.6.3 under conditions of high humidity and constant temperature.

Applicable standards:

IEC 60068-2-78: Environmental testing — Part 2: Tests. Test Ca: Damp heat, steady state,

Environmental testing — Part 2: Tests. Test Cb: Damp heat, steady state, primarily for equipment [12].

IEC 60068-3-4: Environmental testing — Part 2: Tests. Guidance for damp heat tests [11].

Test method	Exposure to damp heat in steady state
Test conditions	Relative humidity of 85 %
Preconditioning of load cell	Place the load cell in the chamber with the output connection external to the chamber, and switched on.
Test procedure in brief	This test involves exposure of the load cell to a constant temperature and a constant relative humidity. The load cell shall be tested as specified in 2.10.6.1 to 2.10.6.10: at a reference temperature ( or the mean value of the temperature range whenever is outside this range) and a relative humidity of 50 % following conditioning; at the high temperature of the range specified in R 60-1, 5.6.1 for the load cell and a relative humidity of 85 %, 48 hours following temperature and humidity stabilisation; and at the reference temperature and relative humidity of 50 %. The load cell shall be handled such that no condensation of water occurs on it.