Specifications
A64192AA2 FINAL
6-7
Connection Unit
Connection Unit Error Recovery
6
1-37 SN37 Scenarios:
1. Cassette was not 
detected inside the 
Load Shuttle 
cassette position 
#3.
2. Cassette incorrectly 
detected inside 
Load Shuttle during 
Startup.
Connection 
Unit Top 
View
D-7 1. If error occurs when cassette is pushed into 
the Load Shuttle:
a. Open the right-side tabletop safety cover.
b. Slide cassette to the right so the SN37 
Orange LED is ON.
c. Replace the right-side tabletop safety 
cover.
d. Press PAUSE/RUN to clear the error.
2. If the problem occurs immediately after 
Startup:
a. Open the right-side tabletop safety cover.
b. Remove cassette from inside the Load 
Shuttle cassette position #3.
c. Replace the right-side tabletop safety 
cover.
1-38 SN38 One of two limit sensors 
associated with 
cylinder SL28 Right 
Side Load Cassette 
Shuttle, position #3.
Connection 
Unit Top 
View
D-7 This error occurs during Power On, if the sensor is 
defective.
If the problem persists, call your Beckman 
Coulter Representative.
1-39 SN39 One of two limit sensors 
associated with 
cylinder SL28 Right 
Side Load Cassette 
Shuttle, position #4.
Connection 
Unit Top 
View
C-7 This error occurs during Power On, if the sensor is 
defective.
If the problem persists, call your Beckman 
Coulter Representative.
1-40 SN40 Problem associated 
with moving the 
cassette in and out of 
cassette position #2 
(Tube pushup and 
unload area).
Connection 
Unit Top 
View
C-6 1. Press PAUSE/RUN to clear the error.
2. If the problem persists:
a. Open the right-side tabletop safety cover.
b. Ensure the cassette has traveled from 
cassette position #1 to cassette position 
#2.
c. Ensure the Tube Unloading Arm finger is 
trying to engage the cassette in order to 
move it.
3. If the problem persist,
a. When the cassette has already moved to 
position #2 and the Load Shuttle is at the 
back position #3, then move the cassette 
to position #3.
b. Replace the right-side tabletop safety 
cover and press PAUSE/RUN to clear the 
error.
4. If the problem continues to persist, call your 
Beckman Coulter Representative.
Tab le 6. 1 Connection Unit Error Codes  (Continued)
Keypad 
Display Sensor
a
Problem
Sensor 
Diagram
Grid 
Ref Solution










