Electro-Chemical Devices (ECD) HYDRA Ammonium - Manual (Page 17)

HYDRA NH
4
+ -N Page 9
3.0 OPERATION
This section will provide a basic overview of the C22 Analyzer/Controller. It covers the basic Menu
structure, the function of the MENU SELECT keys and the CALIBRATE keys.
The C-22 HYDRA analyzer has three measurement channels:
Channel 1, Ammonium as Nitrogen, NH
4
+
-N,
Channel 2, Potassium, K + and
Channel 3, pH
3.1 KEYS
The blinking cursor indicates the active point where menus can be selected or numerical values
adjusted. There are two sets of keys on the C22 analyzer, the MENU SELECT keys and the CALIBRATE
keys.
The MENU SELECT keys are used to move the cursor vertically changing the displayed menu. These keys
are also used to Save/Accept the calibration data and exit the calibration menu.
The CALIBRATE keys are used to enter menus, change numerical values and move the cursor.
***To enter a calibration menu or parameter adjustment line simultaneously press both of the
Horizontal CALIBRATE keys, ◄CALIBRATE►***
Pressing either of the Horizontal CALIBRATE keys separately will move the cursor horizontally to the
point under the digit to be adjusted. The Vertical CALIBRATE keys are used to adjust numeric values.
Pressing the upper key will increase the value and pressing the lower key will decrease the value. When
the cursor is on a menu line, not in the menu, pressing the down CALIBRATE key will return the cursor to
the HOME Screen from any menu.