Measurement Unit Setting - Horiba Scientific LAQUAtwin B-74 Series Manual

7.1

Measurement unit setting

Used to select measurement unit.
1.
Press and hold the MEAS switch for over 3
seconds in the measurement mode to
enter the special setting mode.
All items appear on the LCD, and then the display changes as shown
above.
2.
Press the MEAS switch for 0.5 seconds.
The current setting is displayed.
3.
Press the CAL switch for 0.5 seconds to change the setting.
Pressing the CAL switch continuously switches the display in turn.
The units of ppm and mg/L for nitrate ion and nitrate nitrogen* are
available.
For B-742, the unit of kg/10a for nitrate nitrogen is also available.
The units for nitrate nitrogen can apply to only the samples extracted in
the proportion of 1 part of soil to 5 of water.
Nitrate ion,
ppm display
Press the CAL switch
for 0.5 seconds.
Nitrate ion,
mg/L display
Press the CAL
switch for 0.5
seconds.
4.
Press the MEAS switch to apply the setting.
The measurement mode is returned.
Press the CAL
switch for
0.5 seconds.
Nitrate nitrogen,
ppm display
19
Only for B-742
Nitrate nitrogen,
kg/10a display
Press the CAL switch
for 0.5 seconds.
Nitrate nitrogen,
mg/L display
Press the CAL switch
for 0.5 seconds.