9. Start up
CAUTION!
Personal protective equipment as specified by the applicable accident prevention regulations must be worn
during all work on the dosing pump/system!
Protective clothing
Protective gloves
Goggles
The start-up may only take place after the installation was completed (see chapter 7). All lines must be
connected pressure-resistant.
WARNING!
Chemical could spray out. This may lead to caustic or other burns. Ensure that the discharge line is pres-
sureless before disconnecting it.
1. For the first start-up, set the pump to 100% stroke frequency and allow the pump to prime. Priming aid
is recommended. (Refer to installation examples, Chapter 7.7)
2. Open the vent screw in the dosing head while the dosing pump is switched on until fluid comes out.
Then close it again. In the case of effervescent media, allow the liquid to escape permanently (approx.
1 drop for 1...3 strokes). The escaping chemical must be returned to the supply tank with the aid of a
hose connector.
3. When correct operation is achieved, set desired flow rate. For a rough estimation, please refer to the
performance ratings on the type plate of the dosing pump. Intermediate values must be acquired.
NOTICE!
Depending on the installation, the chemicals used and the temperature of the process fluid, these values
may differ and must be checked under operating conditions.
The manufacturer of the dosing equipment is not responsible for damages due to excessive or low flow
rates resulting from faulty dosing pump settings or insufficient and incorrect installation of peripheral acces-
sories.
a
Abb. 9.1:
a
Vent screw, automatc dosing head vent valve
14
| Operation & Maintenance Instructions | Start up
