Nova-Tech pH-CON 300 - Manual (Page 4)

7 6
Keypad
The large membrane keypad makes the instrument easy to use. Each button, when
pressed, has a corresponding graphic indicator on the LCD.
ON/OFF............Powers and shuts off the meter.
HOLD ..............Freezes the measured reading. To activate, press HOLD while in
measurement mode. To release, press HOLD again.
NOTE: When auto endpoint feature is switched on, meter automati-
cally holds reading after 5 seconds of stability. The HOLD indicator
appears on the display. Press HOLD to release auto endpoint feature.
MODE ..............Selects the measurement parameter. Press MODE to toggle between
pH, conductivity and TDS readings. In calibration mode, press
MODE to access temperature calibration.
CAL/MEAS......Toggles user between Calibration and Measurement mode. For
example, if you are in pH measurement mode, press CAL/MEAS to
enter pH calibration mode.
NOTE: Temperature calibration is available from calibration mode;
see page 16 for directions.
In advanced set-up mode: Press CAL/MEAS to return to main menu
from sub menus. Press CAL/MEAS again to return to measurement
mode from main menu.
ENTER ............Press to confirm values in Calibration mode and to confirm
selections in Setup mode.
RANGE ............Press to switch to manual ranging in Conductivity (or TDS) mode.
▲ ▼ ..........Press in Setup mode to scroll through subgroups. Also lets
you increment/decrement the values in the conductivity and
temperature calibration modes.
SETUP ..............Press to enter SETUP mode. SETUP mode lets you
customize meter preferences
and defaults, and view
calibration and probe data.
2.2
MODE HOLD
ENTER
RANGE
ON
OFF
CAL
MEAS
▲ ▼
SETUP
Battery
compartment
Remove these
two screws to
access battery
compartment
3. Preparation
Inserting the Batteries
Four AAA batteries are included with your meter.
1. Use a Phillips screwdriver to remove the two screws holding the battery cover.
See figure below.
2. Lift off battery cover to expose batteries.
3. Insert batteries. Follow the diagram inside the cover for correct polarity.
4. Replace the battery cover into its original position. Screw cover back into place.
3.1
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