Thermo Fisher Scientific Alpha pH 2000 - Manual (Page 36)

6.7 Wash relay (WASH) sub-function
In this sub-function you set the parameters for the wash relay.
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ENT ENT ENT
ENT
ENT
ENT ENT SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
off
1. Select the “WASH” sub-function, then press the ENT key.
2. Enabling/disabling wash function: press the
▲ or ▼ key to enable
(WASH ON) or disable (WASH OFF) wash function. Press the ENT key to
confirm your selection.
3. Selecting the relay status condition: press the
▲ or ▼ key to choose
desired relay status (de-energized = “DEEN” or energized = “EN”). Press
the ENT key to confirm your selection.
4. Setting the wash interval in hours: Press the
▲ or ▼ key to set the
desired wash interval (setting range: 0.1 to 199.9 hours). Press the ENT
key to confirm your setting.
5. Setting the wash duration in seconds: Press the
▲ or ▼ key to set the
desired wash duration (setting range: 1 to 1999 seconds). Press the ENT
key to confirm your setting.
Note: During wash cycle the controller is set to HOLD. For safety
reasons, the HOLD function is activated 5 seconds prior and
deactivated 10 seconds after the wash cycle.
Continue with Setup mode procedures, or return to Measurement mode by
pressing the
▲ and ▼ keys simultaneously (escape).