LaMotte 1761 Manual - page 7
7
Changing the Salinity Compensation
1. With the Tracer ON, momentarily press CAL twice in quick succession.
‘SAL’ will be shown on the lower part of the display.
2. Momentary press MODE. Each press of MODE increases the salinity
compensation by 1ppt (part per thousand); the available range is 0 to 50ppt.
3. Momentarily press CAL to save the compensation setting and return to
the normal measurement mode.
Changing the Altitude Compensation
1. With the Tracer ON, momentarily press CAL twice in quick succession.
‘SAL’ will be shown in the lower part of the display.
2. Press and hold CAL again for 2 seconds to enter the Altitude Mode. ‘Ald’
will be shown in the lower part of the display.
3. The factory default value is sea level. Each press of MODE increases
the altitude compensation by 1000ft. The maximum value is 20 presses
(20,000ft above sea level).
4. Momentarily press CAL to save the compensation setting and return to
the normal measurement mode.
Changing the Measurement Units
The meter can be set to measure % saturation, dissolved oxygen in mg/l, and
dissolved oxygen in parts per million (ppm).
To change the mode:
1. Press and hold MODE for 2 seconds and the display will begin to scroll
through the available units of measure :
• % saturation
• dissolved oxygen, mg/L (milligrams per liter)
• dissolved oxygen, ppm (parts per million)
2. When the desired units are displayed, release MODE and the unit will
return to normal operating mode.
Note: The ‘HOLD’ function cannot be on when changing the measurement
function. If ‘HOLD’ is displayed in the lower left corner of the display, brief y
press the MODE button to turn it off.