Gas Incubation System
are combined in the tubing leading to the stage top incubator. By varying the flow rates of the two
gas streams, the humidity can be controlled.
The gas tubing carrying humidified gas is heated up to avoid condensation. For this purpose, a
heating wire is inserted in the tubing. The wire is split off of the electrical cable under the insulating
jacket enclosing the tubing. The exact connection of the tubing is shown in Figure
A
B
C
D
E
F
G
H
I
1
2
Figure 5 – Heated Tubing Package: Electrical cable for the heating of the Humidifying Column (A),
Insulating jacket (B), Mixed gas output white and yellow (C and D), heated wire split off the electrical
cable (E), gas input to Humidifying Column (F), gas output from Humidifying Column (G), merging
point, where the heating wire is led into the tubing (H), gas tubing to the Heated Chamber (I).
Caution!
Do not bend or cut the Heated Tubing. The heating wire inside the tubing may be damaged and
become non-functional.
4.5
Humidity Sensor
The humidity sensor is fixed in the side wall of the Heated Lid of the Heating System and measures
the humidity inside the incubation chamber. It sits inside a small cavity in a black polymer block
(Figure
). This cavity must not be obstructed (e.g. covered with tape, pressed flat against the wall of
a disposable, etc.) for the sensor to function properly. The humidity sensor is connected with a cable
to the Gas Mixer and measures the humidity inside the incubation chamber, enabling fast, active
humidity control.
Humidity sensor
Spacer nut
Counter nut
Polymer block
Figure 6 – Polymer block with humidity sensor and nuts for fixation in the Heated Lid side wall.
Instruction Manual
19
Version 2.2 (May 15, 2019)
