Siemens Wallace & Tiernan Chem-Ad VPP, Instruction Manual

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72
WT.490.250.000.DM.IM.0911
Operation
Chem-Ad
®
VPP / VPP-E / VPP-DC
5.
English
5.2 Readying the unit for dosing
Chem-Ad
®
VPP and
Chem-Ad
®
VPP-DC
Dosing is switched on and off in the Chem-Ad
®
VPP and Chem-
Ad
®
VPP-DC models via the supply voltage.
Chem-Ad
®
VPP-E The green LED blinks once the supply voltage is applied . Press
the key to ready the unit for dosing. The green light stops
flashing. Dosing proceeds according to the set operating mode
(see chapter 4.1.5).
5.3 Filling pump hoses using the rapid-action
suction key
Chem-Ad
®
VPP-E In the Chem-Ad
®
VPP-E model, the rapid-action suction key
can be pressed to quickly fill the hoses until the hose is filled with
the pumping medium (e.g., after a hose has been replaced or if the
unit is recommissioned).
5.4 Adjusting the flow rate
Chem-Ad
®
VPP and
Chem-Ad
®
VPP-E
You can set the flow rate using the potentiometer in the Chem-Ad
®
VPP and Chem-Ad
®
VPP-E models. In Chem-Ad
®
VPP-E, this is
only possible in operating mode 1 (jumper 1 or 3).
Procedure:
1 Remove the front housing cover and the electronic housing
cover (example: figure Chem-Ad
®
VPP-E).
2 Set the desired flow rate 1 – 10 (10 – 100%) on the
potentiometer.
Chem-Ad
®
VPP-DC In the Chem-Ad
®
VPP-DC, the flow rate cannot be set (see
chapter 3.4).