Improper Use; Special Hazards - WIKA CTD9100-1100 Betriebsanleitung

3. Safety
Handle electronic precision measuring instruments with
the required care (protect from humidity, impacts, strong
magnetic fields, static electricity and extreme temperatures,
do not insert any objects into the instrument or its openings).
EN Plugs and sockets must be protected from contamination.
The manufacturer shall not be liable for claims of any type
based on operation contrary to the intended use.

3.3 Improper use

WARNING!
Injuries through improper use
Improper use of the instrument can lead to
hazardous situations and injuries.
▶
Refrain from unauthorised modifications to
the instrument.
▶ Do not use the instrument within hazardous
areas.
▶
Only ever use the supplied mains cable.
Any use beyond or different to the intended use is considered
as improper use.

3.4 Special hazards

DANGER!
Danger of death caused by electric current
Upon contact with live parts, there is a direct
danger of death.
▶
The instrument may only be installed and
mounted by skilled personnel.
▶
Before replacing the fuse, cleaning,
maintenance/servicing and in the event of
danger, the calibrator or the micro calibration
bath must be disconnected by unplugging the
mains cable from the power supply outlet.
▶
The mains socket must be freely accessible
at all times!
Only operate the calibrator when it is in correct, fully
■
functional condition.
Correct and safe operation of the calibrator demands
■
correct transport, storage, installation and assembly, as
well as proper use and careful operation and maintenance.
The calibrator should only be used for its intended
■
purpose. Furthermore, hazardous media should not be
used and all technical specifications have to be observed.
The calibrator has been designed as a measurement and
■
control instrument. If the calibrator is used for purposes
not expressly specified in these operating instructions,
additional safety measures have to be taken.
The µProcessor regulator has been configured in factory
■
with the parameters suited to work in the respect of the
technical specifications. Don't change these parameters
6
to avoid malfunction or breaking of the calibrator with risks
of serious personal injury.
Since a malfunction of the temperature dry-well
calibrator can cause personal injury or damage
to property, the equipment must be protected by
additional electro-mechanical safeguards.
Thermal fuse
For safety, the temperature dry-well calibrator
is fitted with an independently-operating
temperature fuse, which cuts out the heater
power supply if the temperature inside the
enclosure is too high. Once the metal block have
cooled down, send in the temperature dry-well
calibrator to WIKA for examination.
The calibrator is supplied with a temperature safety
■
thermostat that disconnects the heating system.
When there is a breakage in the temperature sensor, this
■
is recognized by the thermo-regulator, which switches off
the heat output.
Max temperature safety thermostat, that disconnect the
■
heating power to protect the electrical board in the case
the fan coil breaks.
Protection grid to avoid any contact with the heated
■
elements.
In case the thermostat intervenes:
▶
Waiting the cooling of calibrator: the temperature must
decrease at least 60 ... 80 °C [60 ... 80 °F] respect to
maximum set point.
▶
Switch off the calibrator and then switch it on again
The thermostat has been calibrated ex-factory to
intervene at 1,120 °C ±10 °C [2,048 °F ±10 °F].
Notes during calibration
WARNING!
Risk of burns!!
Touching the hot metal block or the test item can
lead to acute burns.
▶
Before transporting or touching the metal
block make sure that it has cooled down
sufficiently.
▶
Before switch off the calibrator make sure
that the temperature of the block is almost the
same as ambient temperature.
WIKA operating instructions, model CTD9100-1100