Carbolite E Series Installation, Operation & Maintenance Instructions Manual page 25

9.2 Environment
The furnaces contain electrical parts and should be stored and used in indoor conditions as
follows:
Ambient temperature working range.
Temperature : 5°C to 40°C
Note: In ambient temperatures above 30°C and where the operating temperature is close to
maximum the allowable external surface temperature defined in EN 61010-1:2010 may be
exceeded
Relative humidity.
Maximum 80% up to 31°C, decreasing linearly to 50% at 40°C.
Important safety notice:
After transportation or storage in humid conditions the furnace could fail to meet all the safety
requirements of BSEN 61010-2-010 until it has completed the drying-out process to restore its
normal condition.
Warning:
It cannot be assumed that the furnace will meet all the safety requirements of BSEN 61010-2-010
during the drying out process.
Furnace drying out process.
Step 1. Before the furnace is connected to the electrical supply remove the back panel and check
for signs of moisture on the electrical circuits. If visible signs of moisture are present then allow it
to dry out in ambient temperature for at least 24 to 48 hours then re-check.
Step 2. Complete the Installation procedure Section: 2, page 3.
Step 3. After reading the controller operation instructions manual, supplied separately, heat the
furnace following the temperature profile given below. This will need to be done manually on
furnaces with the basic control option or programmed into the controller if an advanced control
option is fitted:
 Ramp the set-point temperature @ 2°C/minute to 100°C and dwell for 2 hours.
 Ramp the set-point temperature @ 2°C/minute to 300°C and dwell for 3 hours.
 Ramp the set-point temperature @ 3°C/minute to 1100°C and dwell for 1 hour.
 Cool naturally to ambient temperature.
 Furnace drying out process is complete.
MF65-1.01
E range
25