Thermo Fisher Scientific Alpha COND 1000 - Manual (Page 13)

Operating Instructions Thermo Scientific Alpha COND 1000
5
4 OVERVIEW
4.1 Keypad and Display
4.1.1 Keypad
•
Perform rapid calibration
•
Allows entry to Set up mode
•
Select individual functions within the function group of Set up mode
•
Store input data in the Set up mode
•
Start calibration in the calibration mode
•
Select various function groups in the Set up mode.
•
Set parameters and numerical values in sub functions of Set up mode
If pressed continuously, the setting speed increases
•
Control the relays in the MANUAL function
•
Return to the Measurement mode when both keys are pressed
together
•
Switch between AUTO and MANUAL relay operation using a code
•
Display limit set-point values for the switch contacts in AUTO relay
operation mode
•
Switch between RELAY A and RELAY B in MANUAL relay operation
mode
4.1.2 Display
The LCD display features two numerical displays that show status messages and
measured values for easy, quick reference. The display provides short-text
information for setting parameters and configuration.
SETUP MEAS CAL HOLD
mS
μ
S
ATC
° C
READY -8.8.8.8
8
-1.8.8.8
•
HOLD: Relay position and current output are
frozen
•
SETUP: Set-up mode of function groups
•
MEAS: Measurement mode
•
CAL: Calibration mode of Conductivity
• READY: Comes on after a successful
calibration
•
ATC: Comes on in the ATC mode. Disappears
in the Manual temperature Compensation
mode. “ATC” flashes if the temperature probe
is faulty in its ATC mode
•
8: Indicates the measurement range selected.
Refer to Appendix 2.
•
Display for RELAY A/B. Green LED indicates measured value within
limit while RED LED indicates measured value outside limit.
•
Alarm display if limit value overshoot or the ATC connection is broken.