5
Power
12Vdc
On
Off
pH/ORP Ref.
TEMP
11
10
14
13
12
Ref.
TEMP
pH/ORP
Front Panel
1) Liquid Crystal Display (LCD).
2) CAL key, to enter and exit calibration mode.
3) CFM key, to confirm different values.
4) °C and °C keys, to manually increase/decrease tempera-
ture or select pH buffer.
5) RANGE key, to select measurement range (HI2211 only).
6) MEM key, to store a value into memory.
7) MR key, memory recall.
8) Secondary LCD.
9) Primary LCD.
10) ON/OFF switch.
11) Power adapter socket.
12) BNC electrode connector.
13) Temperature probe socket.
14) Electrode reference socket.
Rear Panel
FUNCTIONAL DESCRIPTION