Thermo Fisher Scientific Alpha COND 550 - Manual (Page 16)

Instruction Manual
Alpha-
COND 550
10
2.5 Display & Keypad
2.5.1 Display Overview
The Liquid Crystal Display (LCD) of Alpha COND 550 conductivity monitor has
two alpha-numerical displays (Upper and a Lower).
• Upper display: Measured conductivity value is displayed when the
monitor is in normal operation (measurement) mode.
• Lower display: Measured temperature value is displayed when the
monitor is in normal operation (measurement) mode. In conductivity
calibration mode, measured conductivity values are displayed here.
The two displays indicate function names, options & settings in Setup mode.
Refer ‘Appendix 4 - Abbreviations Used in LCD’ for more details.
The LCD also consists of various mode indicators, status annunciators and
unit of measurement indicators.
mS
R. SETUP MEAS CAL
Upper Display
Lower Display
ERR
ATC
°C
READY 8.8.8.8
.8.8.8
-
-
HOLD
°F
µ S
%
K=
Mode Indicators
MEAS Measurement mode (Refer Section 3.1 )
SETUP Setup mode (Refer Section 5)
CAL Calibration mode (Refer Section 4)
Status Annunciators
READY Appears when the reading is stable
HOLD Appears in Setup mode and Calibration mode to indicate that the relay function
is frozen
ATC Appears when Automatic Temperature Compensation (ATC) is enabled.
Not visible when Manual Temperature Compensation (MTC) is enabled.
Flashes if the temperature probe is faulty in its ATC mode.
(Refer Section 5.3)
ERR Appears when an error occurs
Electrode annunciator. Blinks during calibration error (Refer Section 4.2)
Buffer annunciator. Appears in calibration mode (Refer Section 4.2)
K Cell Constant (Refer Section 4.2)