9
GM 5000EA
OPERATING MANUAL
EDITION 07/2014
ORDER NUMBER DOC
2344499
2.5 PROCESSIBLE PRODUCTS
With the GM 5000EA spray gun, lacquers can be processed which contain solvents
of explosion class II A.
The spray gun basic version is suitable for processing of sprayed substances with an
electrical resistance of > 150 kΩ (according to the WAGNER scale).
Equipped with a special product hose for low-resistance sprayed substances
(available as accessory) you can also process sprayed substances with an electrical
resistance > 50 kΩ (according to the WAGNER scale) successfully.
The transfer e ciency is always dependant on the composition of the product
being used, e.g. pigmentation or resin.
Conversion of Lacquer Resistance
There are lacquer resistance measuring devices available on the market that do not
directly measure the speci c lacquer resistance.
Multiplying the result of measurement with the device-speci c cell constant (K), we
obtain the speci c resistance value of the product.
Example:
With Wagner lacquer resistance measuring device the cell constant is K =123.
Measured value according to the WAGNER scale
Speci c resistance (RS)
Notice
Using sprayed substances with too low an electrical resistance the application of
electrostatics does not show any e ect, i.e. there is no "paint wrap around" on the object
to be sprayed.
The suitability of the sprayed product with regard to the charging ability can be read
from the indicators showing the actual values for the high-voltage (kV) and for the spray
current (μA) the actual values are shown either on the VM 5000 control unit or on the
spray gun.
high kV value, low μA value = ok.
low kV value, high μA value = excessive conductivity of the paint
-> no wrap-around
In the event of application problems, please contact your local WAGNER o ce and the
lacquer manufacturer.
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