Hanna Instruments HI520 - Page 12

Controller Basics 12
3.1.1. LCD Display Functions
Screenshots below show typical examples of measurement screen areas for readings taken with two wired probes.
CH1 displays pH measurement data and CH2 displays conductivity (EC) measurement data.
Notes:
• Units for measured value change, depending on wired probe.
• For conductivity measurements, the controller displays the temperature compensation mode status.
1 2
3
4
5
6
З
LIN.
M
Ф
ББ
У
а
6.43
91.03
25.0
12.0
pH
μS/cm
°C
°C
pH & EC
Man
У
Б
б
6.84
25.0
pH
°C
Measure pH
7
8
З
LIN.
У
Б
а
91.03
12.0
μS/cm
°C
Measure EC
10
9
Figure 2: Display Description
3.1.2. Keypad
There are six functional keys and three virtual keys that change function with the display above.
Functional Keys
•
m direct Menu key
Permits access to calibration and Setup parameters.
•
h direct diagnostic/help key
Opens a guide for Setup or diagnosing a problem or troubleshooting.
•
b back functional key
Returns the user to previous hierarchical menu level.
Performs an exit or escape function.
•
udr directional arrow keys
Move the user through the menu and submenu in either direction.
May be used to increment one position.
May be used to move continuously through a menu or string of values by holding the key in the depressed position.
1 Title and status area
2
а warning & б alarm icons. Press the h
(diagnostic key) for description.
3
Channel number CH1/CH2
Б
active channel icon
Press
r to display alternative units.
4 CH1 reading area
5 CH2 reading area
6
Temperature reading (value, unit, and alarm status)
Temperature alarm status,
З (low) or Ж (high)
7 Temperature source status (Probe or Manual)
8 Temperature compensation mode (EC probes only)
9 Warning symbol
10 Virtual key option