Instruction manual

Instruction manual αlpha DO 2000
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− If the proportional controller type is set to pulse frequency control (PFC):
9. Selecting the relay status under Non-Alarm condition: press the ▲ or ▼ key to choose
the desired relay status (de-energized = “DEEN” or energized = “EN”). Press the ENT key to
confirm your selection.
10. Setting the proportional range: press the ▲ or ▼ key to set the proportional range (setting
range: 10 to 500%). Press the ENT key to confirm your setting.
11. Setting the pulse frequency: press the ▲ or ▼ key to set the pulse frequency (setting
range: 60 to 120 pulses per minute). Press the ENT key to confirm your setting.
12. Setting the integral action time: press the ▲ or ▼ key to set the integral action time
(setting range: 0.0 to 999.9 minutes). Press the ENT key to confirm your setting.
Continue with Setup mode procedures, or return to Measurement mode by pressing the ▲
and ▼ keys simultaneously (escape).