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7
Safety
Always Read and Observe the Safety Instructions!
The device is constructed in accordance with the latest technology
and generally accepted safety rules and regulations.
Under certain circumstances, however, usage may pose risks to users
or cause damage to the device.
Commissioning must be carried out by specialist personnel authorized
by the operating company. If safe operation is not possible, the device
must not be switched on or, if it is already on, must be switched off
properly and secured against unintended operation.
Reasons to assume safe operation is not possible:
• the device shows visible damage
• failure to perform the intended function
• prolonged storage at temperature of below ‑30 °C/‑22 °F or above
70 °C/158 °F
• severe transport stresses
Before recommissioning the device, a professional routine test must
be performed. This test should be carried out by the manufacturer at
its factory.
Intended Use
Stratos Pro A201COND is a 2‑wire device for measurement of elec‑
trical conductivity and temperature in liquids. Fields of application
are: biotechnology, chemical industry, environment, food processing,
water/wastewater treatment.
Stratos Pro A201X and the separately approved Ex sensor may be
operated in Zone 0 / Division 1.
Stratos Pro A201B and the separately approved Ex sensor may be
operated in Zone 2.
The defined rated operating conditions must be observed when using
this product. They can be found in the Specifications chapter of this
User Manual; see page 113.
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