37
AL250T IR_5 03/2018
Correct positioning of the vial (Ø 24 mm):
Correct filling of the vial:
correct
wrong
GB
Functional description
ntu
ntu
On
Off
Read
!
!
RESULT
Performing turbidity measurement
Switch the unit on using the [ON/OFF] key.
The display shows the following:
Fill a clean vial with the water sample up to the mark, screw the cap
on and place the vial in the sample chamber making sure that the
marks are aligned.
Press the
[READ]
key.
The "Method" symbol flashes for approx. 8 seconds.
The result is shown in
NTU
.
Repeating the test:
Press the
[READ]
key again.
Display backlight
Press the [!] key to turn the display backlight on or off. The backlight
is switched off automatically during the measurement.
Recall of stored data
If the instrument is switched on, press the [!] key for more than
4 seconds to access the recall menu.
Summary of Contents for AL250T-IR
Page 6: ......
Page 8: ...8 AL250T IR_5 03 2018 ...
Page 29: ...29 AL250T IR_5 03 2018 ...
Page 30: ...30 AL250T IR_5 03 2018 ...
Page 51: ...51 AL250T IR_5 03 2018 ...
Page 52: ...52 AL250T IR_5 03 2018 ...
Page 73: ...73 AL250T IR_5 03 2018 ...
Page 74: ...74 AL250T IR_5 03 2018 ...
Page 95: ...95 AL250T IR_5 03 2018 ...
Page 96: ...96 AL250T IR_5 03 2018 ...
Page 117: ...117 AL250T IR_5 03 2018 ...
Page 118: ...118 AL250T IR_5 03 2018 ...
Page 139: ...139 AL250T IR_5 03 2018 ...