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電阻溫度計的使用說明書
點擊次數:2636 更新時間:2018-08-24
 電阻溫度計的使用說明書   Type Series GA27xx

1 General Information

These operating instructions contain information necessary for the proper installation and
use of this device. In addition to these instructions, be sure to observe all statutory
requirements, applicable standards, the additional technical specifications on the
accompanying data sheet (see ) as well as the specifications indicated on
the type plate.

1.1 Intended Use
GA27xx MiniTherm resistance thermometers are intended for measuring temperatures in
technical processes. For a correct function the permissible temperature ranges indicated
on the type plate must not be exceeded.

1.2 General Safety Notes
The installation, set up, service or removal of this device must only be done by trained,
qualified personnel using suitable equipment and authorized to do so by the plant
operator.

1.3 CE Marking
The CE marking on these devices certifies their compliance with the applicable
EU Directives for placing products on the market within the European Union.
The following guideline applies to model series GA27xx MiniTherm:
                       EMC Guideline EMC 2004/108/EC
                        ATEX Guideline ATEX 94/9/EG (for GA 27x1)

1.4 ATEX Approval
Devices of the type GA 27x1 are certified for use in explosive environments.
Electrical equipment in explosive environments must be installed and commissioned by
competent and properly instructed personnel.
Modifications to devices or electrical connections might negatively influence the operating
safety, the ex-proofing or the guarantee.

2 Transportation and Storage
Store and transport these devices only under clean, dry conditions. Avoid exposure to
shocks and excessive vibrations.
Permissible storage temperature: -40 °C…+100 °C

3 Installation and Commissioning
Before installing the device, be sure that the device is suitable for the intended application
with respect to temperature range, pressure range, compatibility with the monitored
medium and pressure port fitting type. The used gaskets must be compatible with the used
process connection and resistant to the medium.
The process connection determines the permissible process pressure. Operating the
device beyond its nominal pressure limit, e.g. clamp-connections, requires specially
designed and approved mounting elements.

4 Operation
During device operation, take care that the device remains within its intended temperature
range, that its maximum operating pressure is not exceeded and that it is not harmed by
the medium to which it is exposed. No other monitoring is necessary.
Permissible process temperature: -50…+200 °C
Permissible ambient temperature: -40…+100 °C
If the device is equipped with a transmitter the permissible ambient temperature is reduced
to 85 °C.

4.1 Maintenance
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
In the event of a device malfunction, you can only replace the complete measuring insert
resp. the head transmitter.

5 Removal
Make sure that the pipe and the device has cooled down before you attempt to remove it
or wear appropriate protection clothing to avoid burns.
Relieve the process system pressure before you attempt to remove the device. Shut off
the pressure source for all feed lines and relieve the pressure in them.
Attempting to remove the device from a still-pressurized or hot system may result
in severe injury.
De-energize the power supply to the device before disconnecting the electrical
connections. Once this is done, the device may be mechanically removed.
Be sure that residue in the process system and in the device itself do not present a danger
to humans or the environment. During dismantling and removal, the device must be easy
to remove from the process system. Do not apply any force during removal work. After the
device has been removed, seal off the measuring point and mark the open process
accordingly.

Removed devices may contain hazardous deposits and residue. When removing
or transporting these devices, be sure to take appropriate safety precautions.

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