Dual Spray (May 2020) - Q-Lab Q-SUN Xe-3 Series Quick Setup Manual

Section 6. Start Up

6.5 Dual Spray (May 2020)

● The dual spray system operates only during AUXILIARY and LIGHT+AUXILIARY steps.
● If the spray is desired for a specific test:
1. Add the desired liquid to the reservoir (the unit may be rolled to another area easily by first disconnecting the power
cord and the plumbing via the quick-connect fitting).
2. Verify the dual spray power cord is plugged into both the base and the Xe-3 outlet marked Dual Spray
(Figure 5.6j).
3. Verify the tubing connecting the dual spray unit to the Q-SUN tester is fully inserted at both ends.
4. Program an AUXILIARY or LIGHT+AUXILIARY step at the desired sequence, for the desired length of time.
● During the AUXILIARY or LIGHT+AUXILIARY step, the dual spray pump will operate, spraying the liquid onto the top
(front) of the specimens.
● All other functions of the machine will cease (there will be no light, no temperature or humidity control, etc.).
● A horizontal specimen tray insert (part number X-10080-X) has been provided so the liquid can pool on the specimens
without running off, if desired
● The open mesh sample tray assembly (part number X-7035-X) must be placed under the horizontal specimen tray
insert (Figure 6.5b).
Figure 6.5a: Horizontal specimen tray insert - install on
open mesh tray so liquid will not run off the specimens.
NOTE: Use a leveling instrument to verify that the specimen tray is actually level. If it is not level, the entire Xe-3 can be
raised / lowered to the desired height by adjusting the four leveling pads or casters that support the machine.
Do Not Use a Water Repurification System with Dual Spray Models
● Xe-3 Dual Spray models should not have a Water Repurification System installed.
● Drainage should go directly to waste and cannot be reused.
● Using a repurification system will result in adding the solution to the repurification reservoir, contaminating purified
water and compromising tester components.
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(Figure 6.5a).
Figure 6.5b: Open mesh specimen tray - install under
horizontal specimen tray insert.