Packaging And Storage; Commissioning, Operation - WIKA TR21-A Manual De Instrucciones

4. Transport, packaging ... / 5. Commissioning, operation

4.2 Packaging and storage

Do not remove packaging until just before mounting.
Permissible conditions at the place of storage:
Storage temperature: -40 ... +85 °C [-40 ... +185 °F]
Humidity: 5 ... 95 % r. h.
Avoid exposure to the following factors:
Direct sunlight or proximity to hot objects
■
Mechanical vibration, mechanical shock (putting it down hard)
■
Soot, vapour, dust and corrosive gases
■
Hazardous environments, flammable atmospheres
■
Store the instrument in its original packaging in a location that fulfils the conditions listed
above. If the original packaging is not available, pack and store the instrument as described
below:
1. Place the instrument, along with shock-absorbent material, in the packaging.
2. If stored for a prolonged period of time (more than 30 days), place a bag containing a
desiccant inside the packaging.

5. Commissioning, operation

When using a protection tube additionally observe the information of the
attached protection tube operating instructions.
Maximum permissible temperatures:
At the case with transmitter: 85 °C [185 °F]
■
Temperature at the connector: max. 85 °C [185 °F]
■
Model TR21-A:
■
-30 ... +250 °C [-22 ... +482 °F]
Model TR21-B:
■
-30 ... +150 °C [-22 ... +302 °F]
Model TR21-C:
■
-30 ... +150 °C [-22 ... +302 °F]
-30 ... +250 °C [-22 ... +482 °F]
5.1 Mounting
The connection dimensions of the protection tube must match those of the counterpart
on the process side. Insert the protection tube into the process adapter without forcing or
damaging it. For sealing, choose appropriate seals. For further information on mounting the
protection tube, see enclosed operating instructions for thermowells/protection tubes.
WIKA operating instructions model TR21
EN
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