III-1
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
Chapter III
Analyzer Operation
Description of
Basic Controls
Figure III-1
Faceplate
Ch 1 status
Ch 2 status
t
Ch 1
t
Ch 2
B
A
C
D
F
E
Parameter
Location on Display
Options
Default
A
Mode Indicator
Top right corner of display
HOLD, CAL, SETUP, MEASURE,
DIAGNOSTIC
MEASURE
B
Marquee Display
Top left corner of display
Analyzer provides prompts for operator
using the scrolling message
Temperature Display
Celsius
In the measure mode, if an ATC probe
is connected the default is the actual
measured temperature and if no ATC
probe is connected the default is 25 °C
C
Main Data Display
Middle line and bottom line of display
ISE board: concentration
pH/mV board: pH or mV
Conductivity board: conductivity,
resistivity, salinity, concentration or TDS
Depends on type of board installed and
selected measurement parameter
D
Measurement Units
Left and right side of middle and
bottom display lines
ISE board: ppm or ppb, auto-ranging
pH/mV board: pH or mV
Conductivity board: µS/cm or mS/cm
(conductivity), MΩ-cm (resistivity), SAL1
or SAL2 in the marquee (salinity), PCT1
or PCT2 in the marquee (concentration)
and TDS1 or TDS2 in the marquee (TDS)
Depends on type of board installed and
selected measurement parameter
E
Channel 1 Status
Indicator
Below display screen, to the left of
Green LED indicates that channel is OK
Orange LED indicates a channel warning
Red LED indicates a channel failure
At initial installation, the red LED
indicates that the electrode or probe
needs to be installed and calibrated.
F
Channel 2 Status
Indicator
Below display screen, to the right of
Green LED indicates that channel is OK
Orange LED indicates a channel warning
Red LED indicates a channel failure
At initial installation, the red LED
indicates that the electrode or probe
needs to be installed and calibrated.