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Alpha
7.3
General key functions and pilot lamps
Your Alpha Thermostat is easy to operate.
Enter Key
Switch from the current bath temperature display to the main
menu;
activates input, display flashes;
saves input, display ceases to flash and menu point is left.
/
Selection of sub menu or setting of numerical values.
Smart Decrement / Increment Button
Speeds up entry by moving the counting position to the left:
Keys are pressed and held down.
Moves counting position to the right:
Switching one place to the right occurs by briefly (1 second)
releasing the key, followed by another pressing of the key.
(or 4 sec.)
Most relevant settings are accepted automatically after ap-
proximately 4 seconds
or
the setting is accepted immediately pressing the <Enter> key.
and
Fault signal: Flashing red Alarm LED and acoustic signal.
Heating is active when the yellow LED is lit.
Cooling is active. When the setpoint temperature is lowered, it
may take up to one minute before the blue LED is lit.
Summary of Contents for RA 12
Page 12: ...12 52 Alpha 7 2022 1 Control head with clamp 2 Bath vessel 3 Four mounting feet 1 2 3...
Page 14: ...14 52 Alpha 7 2022 1 Mains cable 2 Rating label 3 Cooler cable 4 Bath drain nozzle 1 2 3 4...
Page 44: ...44 52 Alpha 7 2022 Cooling characteristics Alpha RA 8 RA 12 and RA 24 230 V 230 V...
Page 45: ...7 2022 Alpha 45 52 11 Declaration of Conformity and Product Returns...
Page 46: ...46 52 Alpha 7 2022...
Page 47: ...7 2022 Alpha 47 52...
Page 51: ......