Nova-Tech pH-Dissolved Oxygen Meter - Manual (Page 14)

27 26
Using the backlit LCD
This feature lets you view readings in
low light situations.
1. To activate the backlit LCD feature,
press the key to activate.
See figure
To keep the LCD backlit, keep the
key pressed. If the key is not
pressed, the backlight automatically
shuts off automatically after 20 seconds
after pressing the key.
A
7. Backlit LCD
ENT
MEAS
▲
▼
SETUP
Adjusting LCD brightness
This mode lets you adjust the brightness
of the backlit LCD. Selecting a dimmer
backlighting level helps conserve batteries.
This adjustment is only available in the
% saturation or mg/l (ppm) SETUP modes.
From measurement mode:
1. Press the MODE key to switch to
% saturation or mg/l (ppm) mode.
2. Press SETUP key to enter SETUP mode.
3. Press the ▲ and ▼ keys to scroll through
subgroups until you view parameter
“LCd” in the upper display.
See figure
4. Press the ENTER key. A number (0-8)
appears in the upper display and “LCd”
appears in the lower display.
See figure
5. Press the ▲ and ▼ keys to select
from level 0 (dimmest light) to level 8
(brightest light).
6. Press the ENTER key to confirm
selection and to return to the subgroup
menu. Press the CAL/MEAS key to
return to measurement mode.
SETUP
SETUP
A
A
B
B
A
This feature lets you freeze the value of
the pH, % saturation or mg/l (ppm) and
temperature readings for a delayed
observation. HOLD can be used any
time when in MEAS mode.
1. To hold a measurement, press the
HOLD key while in measurement
mode. The “HOLD” annunciator will
appear on the display.
See figures and
2. To release the held value, press HOLD
again. Continue to take measurements.
NOTE: This meter shuts off automatically
after 20 minutes of nonuse. If the
meter is shut off either automatically
or manually, the HOLD value will
be lost.
NOTE: This meter has an auto endpoint
feature. When this feature is
switched on, the display will
automatically “HOLD” a reading
that has been stable for more than
5 seconds. The “HOLD” indicator
appears. Press the HOLD key to
release the reading. To switch on or
off the auto endpoint feature, see
the SETUP program P3.1 on page
35 for pH, P5.1 on page 43 for %
saturation and P4.1 on page 51 for
mg/l (ppm).
ATC
MEAS
HOLD
%
C
B
A
6. HOLD function
pH
ATC
MEAS
HOLD
C
A
B
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