Diesse Chorus User manual

Quick Start Guide

Rev.0 of 2018-08-28 1/4

CHORUS AUTOSAMPLER –Quick Start Guide

oSwitch on CHORUS Autosampler –Electronic/mechanical reset

oMake sure that the USB cable connect CHORUS Autosampler to CHORUS TRIO

PREPARATION OF CYCLE

oInsert 32 tips in the rack rotor

oInsert the tubes with samples in the rack rotor

oInsert calibrators/controls with dedicated adapter in the rack rotor

oPlace the box for used tips collection in its dedicated space

oClose the door of CHORUS Autosampler

START OF SAMPLES TRANSFERRING

oPress C-LIST -> SAMPLER to obtain the barcodes reading:

these are displayed on CHORUS TRIO

oCompose the C-list, reading the strips barcode with the external reader. Insert

the strips in the CHORUS TRIO rack rotor.

oPress EXIT and subsequently R-LIST –enter the Running-List –Press Yes

oPress RUN

END OF SAMPLES TRANSFERRING

oOpen the door of CHORUS Autosampler

oExtract the tubes with used samples from rack rotor

oInsert sufficient tips to fill up the rack rotor

oEmpty and sanitize the box for used tips collection

The activity of CHORUS Autosampler is now concluded and CHORUS TRIO proceeds with the

analytical cycle, from which the printed results will be obtained.

N.B. CHORUS Autosampler can be kept on until the subsequent cycle of transferring samples. In case of inactivity of the instrument, it is advised to turn it off.

Figure 1 - CHORUS Autosampler

LEGEND:

1 –ON/OFF switch

2 –USB cable socket

3 –Rack Rotor

4 –Box for used tips collection

Quick Start Guide

Rev.0 of 2018-08-28 2/4

TROUBLESHOOTING

PROBLEM

CAUSE

SOLUTION

BARCODES

1. Turned tubes –incorrect

position of barcode

2. Technical problems to the

barcode reader

1. Open the door, correctly place the tubes and press “Yes”:

CHORUS Autosampler will conduct another barcode reading.

2. Press “No” and use CHORUS TRIO external barcode reader to

insert the barcodes. The codes transferred from Autosampler

cannot be modified. Proceed as follows:

A. Press “Modify”

B. Read the code with the reader

C. Press “Insert”

MISSING TIPS

(A)

(B)

1. Total or partial lack of tips when

starting the cycle

2. Tips picking problems: if the tip

is considered not well picked, it

is unloaded and the following tip

is picked

1-2.

(A) Presence of sound alarm. Re-insert the missing tips within 3

minutes and press “OK”. In case of no insertion of tips, CHORUS

TRIO starts the analysis cycle of the samples that were transferred

before the tips were finished.

(B) Presence of a 60 seconds sound alarm. Before starting the cycle

CHORUS TRIO allows the extraction of unused strips, in which no

samples have been transferred. The strips to be removed are

selected in dark.

By pressing “Yes” the instrument stops and the strips can be

extracted. Press “RUN” again to start the analysis cycle.

By pressing “No” the analysis cycle starts and the strips cannot be

extracted.

In case no samples have been transferred, the messages “Failed

to start cycle” and “Session aborted”are shown.

MISSING CALIBRATION: NO CALIB

1. Absence of calibration for the

test to perform

2. Level error on the calibrator

1. Exit from R-List. Insert the calibrator with specific adapter in the

rack rotor of CHORUS Autosampler. Enter in the C-List and press

“Sampler”: a new reading of the rack rotor is performed and the

message of the picture on the left is shown. Press “Yes” to

maintain the associations already made.

Quick Start Guide

Rev.0 of 2018-08-28 3/4

(A)

(B)

Note During this phase it is not allowed to move the tubes already

inserted in the rack rotor, only the addition of new ones is

possible.

2. Exit from R-List. Correct the error occurred on the calibrator or

replace the vial and follow all the steps of point 1.

Picture (B) from section “MISSING TIPS”shows what happens if the

error has not been corrected. Follow, step by step, the indications

reported in that section.

ERRORS:

LEV LOW, LEV ERR, LEV MAX, PRESS ERR

Problems occurred during level

search phase

In details:

1. LEV LOW: tube with low level

2. LEV ERR: tube with no liquid

3. LEV MAX: the tube is too full

4. PRESS ERR: problem in the pressure control during suction. This

could indicate:

A. Presence of a problem to the hydraulic apparatus if it is

repeated on more samples (contact DIESSE technical

assistance)

B. Presence of bubbles in the sample presenting the problem

The instrument proceeds with the analysis cycle, following

confirmation and request of unused strips extraction (as respectively

described in section “SAMPLE ERROR” and in picture (B) of section

“MISSING TIPS”).

LEV ERR: CONTINUOUS REPETITION

1. Problems to dilutor

2. Problems to hydraulic apparatus

3. Movement mechanical problems

Contact DIESSE technical assistance

ABSENCE OF CONNECTION

1. USB cable disconnection

2. Malfunction of CHORUS

Autosampler

1-2.

Presence of a 3 minutes sound alarm. The messages “Failed to start

cycle” and “Sampler Error: IO err” are shown at the end this time.

Quick Start Guide

Rev.0 of 2018-08-28 4/4

SAMPLE ERROR

Presence of one or more samples for

which the analysis cannot be

performed. The status of such

samples can be:

(A) “DISP ERR”

(B) “LEV ERR”

(D) “LEV MAX”

(E) “PRESS ERR”

Press “Yes” to proceed with the analysis of the tests.

Press “No” to modify the ongoing session.

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