Information For Operators - Renfert SYMPRESS Mode D'emploi

Error
The tubular bag bursts or
is damaged.
Advance stops for no ap-
parent reason and the unit
performs a short relief
stroke.

Information for Operators

The following information is intended to assist you,
the operator, in safely working with the SYMPRESS
in your laboratory.
Using these operating instructions as a
starting point, instruct all operators of the
unit with regard to the area of application,
the possible hazards during operation, and
the proper operation of the unit.
Please have these operating instructions readily
available for the operators.
A. Application Area
A.1 Proper Use
The SYMPRESS is designed solely for the extrusion
of 2-component precision impression materials.
The SYMPRESS is capable of working with 5:1 car-
tridges or tubular bags in reinforcing cartridges from
various manufacturers.
Always comply with all safety and process-
ing instructions provided by the manufac-
turer!
Impression materials are to be processed
in accordance with the manufacturer's in-
structions!
Dynamic mixing nozzles with hexagonal head drives
can be used for mixing.
Only the mixing nozzles specified by the
manufacturer may be employed.
EN
Cause
• Pressure discs are too worn or have
been damaged, causing the tubular
bag to be pinched between the pres-
sure disc and the cartridge.
• The material has partially hardened
in the cartridge.
• The controller has detected an over-
load.
• Material has hardened in the car-
tridge.
• Insufficient spindle lubrication.
Corrective action
• Replace the pressure discs (refer to Sec. 3.3).
• Replace the cartridge (refer to Sec. 2.2).
• Impression material is too cold, Refer to the manufactur-
er's processing instructions.
• Use a new cartridge.
• Lubricate the spindles (special grease!)
A.2 Ambient conditions for
safe operation
Safe operation of the unit can only be ensured under
the following ambient conditions:
• Indoors;
• Up to an altitude of 2,000 m above sea level;
• At an ambient temperature range between
5 - 40 ºC [41 - 104 ºF] *);
• At a maximum relative humidity of 80 % at 31 ºC
[87.8 ºF], dropping in a linear manner to 50 % rel-
ative humidity at 40 ºC [104 ºF] *);
• With mains power where the voltage fluctuations
do not exceed 10 % of the nominal value;
• Under contamination level 2 conditions;
• Under over-voltage category II conditions.
*) Between 5 – 40 °C [41 – 104 °F], the unit can be operated at
a relative humidity of up to 80 %. At temperatures between
31 – 40 °C [87.8 – 104 °F], the humidity must decrease
proportionally in order to ensure operational readiness
(e.g., at 35 °C [95 °F] = 65 % humidity; at 40 °C [104 °F] =
50 % humidity). The unit may not be operated at temperatures
above 40°C [104 °F].
A.3 Ambient conditions for
storage and transport
Ensure the following ambient conditions during stor-
age and transport:
• Ambient temperature - 20 – +60 ºC [-4 – + 140 ºF],
• Maximum relative humidity 80 %.
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