11
Note.
Сalibrate the unit using as many points as possible to obtain precise results.
Minimum requirement are 2 points closest to the working range limits (e.g.
0.00 and 6.00 for operation in 0.00
–6.00 McF range).
6.7.
Common calibration rules
. Display shows indication of necessary calibration value.
Insert the necessary standard into the socket (fig. 2/1) of the unit and press the
Install
button to save the value for current standard.
Note.
If pressing the
Install
button does not switch to the next standard value, it
means that the current standard in the socket has lower turbidity value than
the previous standard. Shake or replace the standard.
6.8.
If a standard is not available, press the
Select
button to skip to the next calibration
value without recording the value.
6.9.
Repeat steps
6.7-6.8
until the calibration is complete. After recording or skipping the
last value, unit automatically exits calibration mode and is ready for operation.
6.10.
Reset to factory calibration
. To reset the calibration of the unit to factory settings,
ensure that you are in the working mode and the socket of the unit is empty. Press
and hold
Install
key for 5 seconds. The unit displays a dot
.
, then changes it to
.
.
The values are now reset.
6.11. Switch off the unit using the
Power
switch (position
O
). If an external power supply
is used, disconnect it from electric circuit.
7. Specifications
The unit is designed for operation in cold rooms, incubators (except CO
2
incubators)
and closed laboratory rooms at ambient temperature from +4°C to +40°C in a non-condens-
ing atmosphere and maximum relative humidity 80% for temperatures up to 31°C decreasing
linearly to 50% relative humidity at 40°C.
Biosan is committed to a continuous programme of improvement and reserves the
right to alter design and specifications of the equipment without additional notice.
Light source .................................................................................................................... LED
Wavelength .................................................................................................
λ = 565 ± 15 nm
McFarland unit range................................................................................... 0.00
–15.00 McF
Resolution .............................................................................................................. 0.01 McF
Accuracy, in the factory calibration range and of the full scale ...................................... ±3%
Measurement time ............................................................................................................ 1 s
Sample volume .............................................................................................. 2 mL minimum
External diameter of tubes ........................ 12 mm (with
A-12
), 16 mm (with
A-16
) or 18 mm
Display ........................................................................................................................... LCD
Dimensions (L x W x H) .......................................................................... 165 x 115 x 75 mm
Weight, within ±10% .................................................................................................... 0.7 kg
Power consumption ..................................................................................................... 0.1 W
Input voltage and current ..................................................................................... 12 V, 7 mA
External power supply ................................. input AC 100-240 V, 50/60 Hz; output DC 12 V
Batteries (only
DEN-1B
) ............................................................................................ 3 x AA
Содержание BS-050102-AAF
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