Electro-Chemical Devices (ECD) HYDRA Ammonium - Manual (Page 18)

Page 10 HYDRA NH
4
+ -N
3.2 MENUS
There are three sets of menus on the Model C-22. The Channel 1 menus (PV1) the Ammonium Ion
channel (NH
4
+
-N), the Channel 2 menus (PV2) the Potassium Ion channel and the Channel 3 menus (PV3)
the pH channel. Pressing the MENU SELECT UP key will first access the Potassium channel and then the
pH channel, pressing the MENU SELECT DOWN key will access the Ammonium channel. See the guide
below for the general menu structure.
3.2.1 Ammonium Ion Channel 1 Menu Structure
Screen Displayed Button Pressed
Home Screen MENU SELECT ▼
Graphical display MENU SELECT ▼
Parameter Selection Screen (Ch 1 Buffer) MENU SELECT ▼
Parameter Selection Screen (Ch 1 Set-Up) MENU SELECT ▼
Parameter Selection Screen (Ch 1 Status) MENU SELECT ▼
Configure/ Trim Menu MENU SELECT ▲..... To return to the Home screen
3.2.2 Potassium Ion Channel 2 Menu Structure
Screen Displayed Button Pressed
Home Screen MENU SELECT ▲
pH Manual Mode Screen MENU SELECT ▲
Parameter Selection Screen (Ch 2 Status) MENU SELECT ▲
Parameter Selection Screen (Ch 2 Set-Up) MENU SELECT ▲
Parameter Selection Screen (Ch 2 Buffer) MENU SELECT ▲
To channel 3 MENU SELECT ▼….. To return to the Home screen
3.2.3 pH Channel 3 Menu Structure
Screen Displayed Button Pressed
Parameter Selection Screen (Ch 2 Buffer) MENU SELECT ▲
Parameter Selection Screen (Ch 3 Status) MENU SELECT ▲
Parameter Selection Screen (Ch 3 Set-Up) MENU SELECT ▲
Parameter Selection Screen (Ch 3 Buffer) MENU SELECT ▲
Contrast (adjustment screen) MENU SELECT ▼….. To return to the Home screen
3.2.4 Graphical Display Screen
This Graphical Display is only available in the Channel 1 menu. It is located one screen down from the
Home Screen. It displays a user assigned output value, for example, 4-20 mA1 vs. time. The Graphical