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“S1” operating mode (continuous operation)
At the rated load, a constant temperature is reached that
does not increase even in prolonged operation. The oper-
ating equipment can operate uninterruptedly at the rated
load without exceeding the maximum permissible tem-
perature.
“S2” operating mode (short-term operation)
The operating time is specified in minutes, for example,
S2-20. That means, that the machine can work 20 min-
utes and should pauses after it, as long as the machine is
cooled down to 2K over medium temperature.
Operating mode “S3” (intermittent operation):
For these operating modes, after the abbreviation, the
duty cycle is displayed as well as the cycle duration if it
deviates from 10 minutes. Example S3 30% means, that
the machine can work 3 minutes and afterwards should
pauses 7 minutes.
“Sip operation”
Siphoning operation is similar to dry running. The product
operates at full speed, but only small amounts of liquid
are pumped.
Sip operation is only possible with certain types; see
the “Product description” chapter.
Dry-run protection
The dry-run protection is designed to automatically shut
down the product if the water level falls below the min-
imum water coverage value of the product. This is made
possible by installing a float switch.
Level control
The level control is designed to switch the product on or
off depending on the filling level. This is made possible by
installing a float switch.
2. Safety
This chapter lists all the generally applicable safety instruc-
tions and technical information. Furthermore, every other
chapter contains specific safety instructions and techni-
cal information. All instructions and information must be
observed and followed during the various phases of the
product‘s lifecycle (installation, operation, maintenance,
transport etc.). The operator is responsible for ensuring
that personnel follow these instructions and guidelines.
2.1. Instructions and safety information
This manual uses instructions and safety information for
preventing injury and damage to property.
To make this clear for the personnel, the instructions and
safety information are distinguished as follows:
Each safety instruction begins with one of the following
signal words:
Danger:
Serious or fatal injuries can occur!
Warning:
Serious injuries can occur!
Caution:
Injuries can occur!
Caution (Instruction without symbol):
Serious damage to property can occur, including irrepara-
ble damage!
Safety instructions begin with a signal word and descrip-
tion of the hazard, followed by the hazard source and po-
tential consequences, and end with information on pre-
venting it.
2.2. Guidelines used and CE certification
Our products are subject to
• various EC directives
• various harmonized standards
• various national standards
Please consult the EU Declaration of Conformity for the
precise information and the guidelines and norms in ef-
fect. The EU Declaration of Conformity is issued in accor-
dance with EU Directive 2006/42/EEC, Appendix II A.
Also, various national standards are also used as a basis
for using, assembling and dismantling the product. These
include the German accident prevention regulations, VDE
regulations, German Equipment Safety Law etc. The CE
symbol is found either on the type plate or next to the
type plate. The type plate is attached to the motor casing.
2.3. General safety
Never work alone when installing or removing the prod-
uct. The machine must always be switched off before any
work is performed on it (assembly, dismantling, mainte-
nance, installation). The machine must be disconnected
from the electrical system and secured against being
switched on again. All rotating parts must be at a stand-
still.
