Thermo Fisher Scientific Alpha RES 1000 - Manual (Page 12)

Operating Instructions Alpha RES 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 set-point values for the switch contacts in AUTO 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.
• HOLD: Relay position and current output are frozen
• SETUP: Set-up mode of function groups
• MEAS: Measurement mode
• CAL: Calibration mode of Resistivity
• 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
• Range No.: Indicates the measurement range selected
• 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.
-8.8.8.8
1.8.8.8
ATC
HOLD SETUP MEA
READY
8
S CAL
m Ω
o C