Labconco Logic+ A2 User Manual

101
Sash Sensor Adjustment or Replacement
The biosafety cabinet senses the sash’s vertical position with mechanical switches
located on the counterweight channel in the right end service compartment. The
switches activate off of the counterweight as it travels in the channel. These switches
are reliable and do not require calibration. Should the biosafety cabinet not respond as
expected to the position of the sash (for example, automatic blower/light operation when
sash is closed/opened, or a sash alarm when sash not within 1 inch (25 mm) of nominal
operating position), examine the sash switches and adjust/replace as necessary.
1. Hinge open or remove the right end side panel as described earlier in this section
under Removal of External Dress Panels.
2. Locate the sash switches on the counterweight channel. Table 12-1 indicates
which switches will be present based on the type and sash height. Figure 12-4
identifies the location of these switches.
Type
Sash
Height
(inches)
Closed
Almost
Closed
Operating
Position 1
Operating
Position 2
A2
8, 9, 10
Yes
Yes
12
Yes
Yes
Yes
B2
8
Yes
Yes
C1
8, 10
Yes
Yes
Yes
Yes
Table 12-1
Figure 12-4
Top switch location
CLOSED switch: silver tab UP
ALMOST CLOSED switch (if present): silver tab DOWN
Bottom switch location
Operating Pos. 1 switch: silver tab DOWN
Operating Pos. 2 switch (if present): silver tab UP

Labconco Logic+ A2 Specifications

General

Brand	Labconco
Model	Logic+ A2
Category	Laboratory Equipment
Language	English