Thermo Fisher Scientific CyberScan PD 300 - Manual (Page 8)

Instruction Manual PD 300
2.2 Keypad
The large membrane keypad makes the instrument easy to use. Each button, when pressed,
has a corresponding graphic indicator on the LCD. See Figure 1. Some buttons have several
functions depending on its mode of operation.
Key Function
ON/OFF Powers meter on and off. The meter powers on in the mode that you were last using.
For example, if you shut the meter off in mg/L measurement mode, the meter will be in
mg/L measurement mode when switched on. Note: The meter shuts off automatically
after 20 minutes of the last key press.
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, it automatically holds reading after 5
seconds of stability. The HOLD indicator appears on the display. Press HOLD again to
release.
MODE 1. Selects the measurement parameter. Press MODE to toggle between pH; DO %
saturation; and DO mg/L.
2. While in CAL mode under pH or mg/L (parts per million – ppm) measurement status,
this key will toggle between pH or mg/L (or ppm) calibration and temperature
calibration (refer to Section 4.2 in page 8).
CAL/MEAS Toggles between Calibration and Measurement mode.
1.
In pH measurement mode, press CAL/MEAS to enter pH calibration mode.
2. In DO % saturation measurement mode, press CAL/MEAS to enter DO %
saturation calibration mode.
3. In DO mg/L (or ppm) measurement mode, press CAL/MEAS to enter DO mg/L (or
ppm) calibration mode.
4. To abort calibration, press CAL/MEAS key again to go back to measurement
mode.
While in advanced SETUP mode: Press CAL/MEAS to return to main menu from sub
menus. Press CAL/MEAS again to return to return to measurement mode from main
menu.
ENTER 1. Press to confirm your calibration values in calibration mode.
2. While in SETUP, pressing the ENTER key confirms selections.
▲/▼ In CALibration & SETUP mode:
In DO mg/L (or ppm) and temperature calibration mode, press up or down keys to
increase or decrease the values.
In SETUP mode, press up or down keys to scroll through the setup subgroup programs.
Within the SETUP sub-menu group, press up or down keys to change values.
SETUP Takes you into the SETUP mode. This mode lets you customise meter preference and
defaults, view calibration and electrode data.
LIGHT. Press to activate backlit display.
3