BINDER VD 23 - Manual (Page 36)

VDL (E2.1) 04/2014 page 36/107
DANGER
Ignition of emerging solvent vapors due to sparking in the pump motor or the
switching elements, electrostatic discharges, hot pump parts.
Explosion hazard.
Danger of death.

Use only suitable, explosion-proof pumps
 Operate the pump in a stationary position and secure it so it is immobile.
 Install a fixed and conductive suction line to the vacuum connection (13).
 Install a fixed and conductive exhaust pipe in case it may conduct ignitable solvent con-
centrations. This should be avoided by sufficient solvent condensation e.g., in an ex-
haust waste vapor condenser
 When using ATEX (Directive 94/9/EC) non-compliant pumps: Provide a current-
dependent, delayed protective device for the pump (for the triggering time of this protec-
tive device, see the manufacturer’s specifications). The protective and monitoring de-
vice must not be able to independently turn on again or be released.
 When using ATEX (Directive 94/9/EC) non-compliant pumps: Install the switch gear box
outside the hazardous area or provide it with explosion protection.
 Assure that there is equipotential bonding between the pump housing and the housing
of the VDL vacuum drying oven via the connected equipment grounding conductors of
both units.
The ATEX (Directive 94/9/EC) compliant pumps offered by BINDER provide an integral protec-
tive device.
The ATEX (Directive 94/9/EC) compliant pumps offered by BINDER provide an integral explo-
sion proof switch.
Make sure that the vacuum source is designed for a gas inlet temperature corresponding to
the used drying temperature, or take appropriate measures to cool down the extracted vapor
before it enters into the vacuum source.
The ATEX (Directive 94/9/EC) compliant vacuum pumps offered by BINDER are designed for a gas
inlet temperature of 40 °C / 104°F max. Do NOT exceed this temperature. If the gas inlet temperature is
too high and then becomes even warmer by compression in the pump, the resulting temperature (of the
gas-solvent mixture inside the pump) could exceed the solvent’s temperature class and ignition tempera-
ture.
DANGER
Exceeding the gas inlet temperature.
Exceeding the ignition temperature of the solvent.
Risk of ignition and explosion.
Damage to the vacuum pump.
Danger of death.
∅
Do NOT exceed a set-point temperature of 40 °C / 104°F.
 With set-point temperature > 40 °C / 104°F take appropriate measures to cool down the
extracted vapor before it enters into the vacuum pump.