DO700-en-GB_v2.3 3/15
4
Display Description
1. Measurement type icons
2. Measured reading
3. 888 (Stored data serial number), M+ (measurement to be stored icon), RM (reading to be
recalled icon)
4. Units of measure
5. Temperature reading
6. Stable measurement icon
7. Calibration icons
8. Low battery icon
Keypad Description
ON/OFF Power Key
Calibration Key
a) When taking a measurement, press this key to enter the calibration mode
b) When in the programming mode, press this key to change the displayed number or the
ON/OFF state
Mode Key
a) In pH measuring mode, one short press switches between pH and mV measuring
modes. One long press (>2s) enters the parameter setting mode. Subsequent presses
will scroll through the available parameters.
b) In other measuring modes, press to enter the parameter setting modes. The meter will
scroll through the available parameters
Backlight and ENTER Key
a) In the measurement mode, momentary presses toggle the backlight on and off
b) When in the programming or calibration mode, press to ENTER data
c) When in the pH mode, press and hold to change the resolution 0.01 to 0.1pH
d) When in the Conductivity mode, press and hold to scroll through the TDS, Salinity,
Resistivity, and Conductivity modes
e) When in DO mode, press and hold to select the unit of measure (mg/L > ppm > %).
Release the key when the desired unit is displayed
MEMORY STORE and RECALL Key
a) In the measurement mode, momentary presses store the displayed readings. Press and
hold for at least 2 seconds to recall a saved reading
b) In programming mode, press to change the displayed number or ON/OFF state
