Installation and operating manual for WATERFRIEND exclusive MRD-2 Page 11 (44)
Professional level
The WATERFRIEND offers protection against unauthorised
changes to important operating parameters.
This safety function is activated as supplied. All the
parameters marked with X in the display are blocked.
Safety function OFF
Safety function ON (no symbol)
To switch the safety function off, press the
,
and
keys simultaneously.
The safety function switches itself on again automatically one hour after the last time one of these keys was
actuated.
Bleed metering hose
The WATERFRIEND offers the facility for switching the
metering pump on manually so that the meeting hoses can be
bled.
Procedure:
Press the "MENU" key
Move the cursor (blue backed text) to the line "hand dosage" by pressing the keys
or
.
Press the
OK
key.
Each metering pump can be switched on and off individually
by pressing the appropriate keys. While doing so, please
observe the corresponding status display. The maximum
runtime is limited to 60 seconds. Once this time has elapsed,
the pumps will be switched off automatically. The remaining
runtime is shown graphically in the display.
Runtime
pH regulation
Switching off pH regulation
In the menu there is a setting to turn on and off the automatic
pH control.
Procedure:
Press the "MENU" key
Move the cursor (blue backed text) to the line "set pH" by pressing the keys
or
.
Press the
OK
key.
Move the cursor (blue backed text) to the line "operating mode" by pressing the keys
or
.
Press the
OK
key.
7,20
700
721
675
Stop
Stop
pH
mV
7,20
800
721
675
D -2%
D +10%
pH
mV
7,20
800
721
675
D -2%
D +10%
pH
mV
X start delay 10
X comm. adress 1
X factory settings
X temperature correct.