Table of Contents
Advertisement
Thermo Scientific
Set Door Heater Control
High voltage is present behind control panel. Servicing must be performed only
by qualified electrical service personnel.
The infinite heater control is located in the left side of the environmental chamber top
compartment behind the control panel door. The control varies the amount of door heat
from no heat (zero) to full heat (100) as indicated by the dial face. If the knob is turned
past zero, a "click" indicates that all power to the door is shut off. If turned past 100, a
similar "click" indicates that the heat is set at maximum.
Figure 13-2 Door Heater Control
Initially, the units leave the factory with the dial set at 40. If desired, the amount of heat
can later be reduced until moisture appears on the door. However, in fluctuating ambient
conditions, it is recommended that a minimum of 40% door heat be used.
Service |
Chapter 13
Model 3907 & 3948 | 13-3
Advertisement
Table of Contents
