VACUUBRAND DVR 4S - Manual (Page 4)

page 4 of 20
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 99 90 72 / 13/08/2005
Safety information!
Remove all packing material, remove the product from its packing-box, remove the protective covers and
keep them, inspect the equipment.
If the equipment is damaged, notify the supplier and the carrier in writing within three days; state the item
number of the product together with the order number and the supplier’s invoice number. Retain all packing
material for inspection.
Do not use the equipment if it is damaged.
If the equipment is not used immediately, replace the protective covers. Store the equipment under suitable
conditions.
☞ Read and obey this manual before installing or operating the equipment.
The devices DVR 3, DVR 4 and DVR 4S are electronic rough vacuum gauges of the facility performance
group II for the intended use in hazardous areas. They have a special approval and are subject to the
guideline 94/9/EG (see ”Declaration of Conformity)”.
Obey the instructions for use.
☞
☞ ☞ ☞ ☞ Respect the permitted connection parameters.
☞ ☞ ☞ ☞ ☞ Obey all applicable regulations and realize all required measures.
☞ ☞ ☞ ☞ ☞ Electrical and vacuum components might require a separate approval (see also ”Accessories”).
The vacuum gauges DVR 4 and DVR 4S are devices to be operated with the vacuum connection mounted
at hazardous areas of category 1 (or higher) whereas the housing is within hazardous areas of category 2
(or higher).
☞ Check the devices together with the regularly pressure test of the recipient regarding tightness.
☞ ☞ ☞ ☞ ☞ Obey the requirements according to EN 50284.
Attention:
DVR 3 has only an approval for zone 1.
DVR 4 / DVR 4S has only an approval for zone 1, only the measuring connection
has an approval for zone 0.
Prevent any condensate to reach the pressure transducer inside the vacuum gauge (risk of false
measurement).
Max. permitted pressure at the vacuum gauge:
☞ DVR 3: 1.1 bar absolute; with small flange connection 2.5 bar absolute.
☞ DVR 4 / DVR 4S: 2.5 bar absolute; when using clamping rings made of stainless steel, the max.
permitted pressure at the measuring connection is 6.0 bar absolute.
☞ The display flashes at a pressure above 1060 mbar.
The power supply unit BVE 9V is an intrinsically safe electrical operating device of the facility performance
category 2 (PTB 98 ATEX 2206). The user can replace the sealed power supply unit of vacuum gauges
DVR 3 / DVR 4 / DVR 4S within the hazardous area of category 2 (according to the approvals of power
supply unit and vacuum gauge). Further interventions and repair must only be done by the
manufacturer.
☞ Warning: For replacing the power supply unit of the DVR 4S in explosive atmosphere the current loop
must be disconnected.
☞ ☞ ☞ ☞ ☞ Using non-genuine power supply units or doing further interventions void the approval for use
in explosive areas.
In order to comply with law (occupational, health and safety regulations, safety at work law and regulations
for environmental protection) components returned to the manufacturer can be repaired only when certain
procedures (see section “Notes on return to the factory“) are followed.