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Quick Reference Card

Guava® easyCyte™ Maintenance Guide

For the Guava® easyCyte™ and easyCyte™ HT systems

For Research Use Only. Not for use in diagnostic procedures.

Use this quick start guide when cleaning, running Guava easyCheck, 
and replacing the flow cell for your Guava easyCyte or easyCyte HT 
System. For detailed instructions on using the system, refer to the 
appropriate Guava easyCyte System User’s Guide. 

Running Guava® Clean

Run Guava® Clean at the start and end of the day, between assays if 
needed, and to prime the fluid system if you suspect air in the fluid 
lines. If running lysed whole blood, run two Guava Clean cycles.

Guava® easyCyte™ Systems

1.

Click 

Cleaning

 from the main menu.

2.

Click 

Start Cleaning

.

3.

Place a tube containing 10% bleach in Guava® ICF and a tube of 
DI water in the sample holder.

4.

Load the tube of DI water and click 

OK

.

5.

When prompted, load the tube of bleach in ICF and click 

OK

.

6.

When prompted, load a tube of fresh water and click 

OK

.

Guava® easyCyte™ HT Systems

1.

Click 

Cleaning

 from the main menu.

2.

Click 

Start Clean

.

3.

Load the following tubes:

•  

Seven tubes filled with DI water in positions w1, w2, w3, w4, 

w5, w6, and tube position 1

•  

100 μL of 100% bleach in tube position 2

•  

Two tubes of Guava® ICF in tube positions 3 and 4

•  

Tube of DI water in any tube position 5–9 for capillary shut-

down

4.

Click to select the capillary shutdown position on the plate 
map, then click 

OK

.

5.

If you are shutting down the instrument, click 

Capillary Shut-

down

 from the Guava Clean screen. Select a tube from posi-

tions 5 through 9 that contains of tube of DI water and click 

OK

.

Running easyCheck™

Prepare a 1:20 dilution of Guava® easyCheck™ beads. Refer to the 
Guava easyCheck Kit User’s Guide for information. Refer to the 
appropriate Guava easyCyte™ System User’s Guide for information 
on easyCheck results.

Guava® easyCyte™ Systems

1.

Click 

easyCheck

 from the main menu.

2.

Enter the Bead Lot #, Bead Expiration date, and Expected Parti-
cles/mL.

3.

Mix the easyCheck™ bead sample and load it on the instru-
ment. Click 

Run 1st Replicate

.

4.

Remove the sample, mix it, then reload it. Click 

Run 2nd Repli-

cate

.

5.

Remove the sample, mix it again, then reload it. Click 

Run 3rd 

Replicate

Guava® easyCyte™ HT Systems

1.

Click 

easyCheck

 from the main menu.

2.

Enter the Bead Lot #, Bead Expiration date, and Expected Parti-
cles/mL.

3.

Click 

Start

.

4.

Load the following tubes:

•  

DI water in positions w2, w4, and w5

•  

Empty tubes in positions w3 and w6

•  

100 μL of 100% bleach in position w1

•  

easyCheck™ bead sample in any tube or well position

5.

Click to select the tube location containing the beads, then click 

OK

.

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