Merck RQflex 10 Instruction Manual page 17

Procedure B
Besides the reaction time of the Reflectoquant® strips this procedure also
considers the reaction times of auxiliary reagents.
Procedure B is indicated by the watch symbol.
How?
1 . Switch on the instrument by pressing the ON/OFF button.
2 . Press the TEST button until the pointer indicates the desired method.
3 . Compare the first three digits of the batch number of the Reflectoquant®
pack. This reference number must be the same as the one displayed
(if not, see Coding).
4 . Press the START button. The reaction time of the auxiliary reagent appears
in the display, e.g. 120 sec (A). Proceed as described in the respective
Reflectoquant® package insert. Press the START button again to activate the
stopwatch function (B). When the reaction time of the auxiliary reagent
has expired, a strip symbol appears in the display and the reaction time of
the strip, e.g. 60 sec., is shown (C).
5 . Immerse the strip into your sample as described in the Reflectoquant®
instruction leaflet and at the same time press the START button (A).
Allow excess liquid to run off via the long edge of the strip onto an absor-
bent paper towel. The stopwatch function of the instrument is now activated.
The remaining reaction time is shown as it counts down (B).
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1 7
2
F:50
M E M S TA R T
263
CODE
T E S T O N / O F F
4 A
12:55 12.07
M E M S TA R T
120
S E C
T E S T O N / O F F
4 B
12:55 12.07
M E M S TA R T
120
S E C
T E S T O N / O F F
4 C
12:55 12.07
M E M S TA R T
60
S E C
T E S T O N / O F F
1 2 3 4 5
5 A
12:55 12.07
M E M
60
S E C
T E S T
5 B
12:55 12.07
M E M
43
S E C
T E S T
S TA R T
O N / O F F
S TA R T
O N / O F F