TESTO 549 User Manual

2 Safety and the environment
5
2.2. Ensure safety
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> Do not operate the instrument if there are signs of damage at
the housing, mains unit or feed lines.
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> Do not perform contact measurements on non-insulated, live
parts.
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> Do not store the product together with solvents. Do not use any
desiccants.
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> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts
from Testo.
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> Dangers may also arise from the systems being measured or
the measuring environment: Note the safety regulations valid in
your area when performing the measurements.
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> If the measuring instrument falls or another comparable
mechanical load occurs, the pipe sections of the refrigerant
hoses may break. The valve positioners may also be damaged,
whereby further damage to the interior of the measuring
instrument may occur that cannot be identified from the outside.
The refrigerant hoses must therefore be replaced with new,
undamaged refrigerant hoses every time the measuring
instrument falls or following any other comparable mechanical
load. Send the measuring instrument to Testo Customer
Service for a technical check for your own safety.
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> Make sure that your refrigeration system is properly earthed, as
otherwise the measuring instrument might get damaged.
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2.3. Protecting the environment
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> Dispose of faulty rechargeable batteries/spent batteries in
accordance with the valid legal specifications.
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> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
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> Refrigerant gases can harm the environment. Please note the
applicable environmental regulations.

TESTO 549 Specifications

General

Type	Digital Manifold
Pressure Measurement Range	-1 to 60 bar
Battery Type	2 x AA
Temperature Measurement Range	-50 to +150 °C
Refrigerant Types	60 Refrigerants
Operating Temperature	-20 to +50 °C
Storage Temperature	-20 to +60 °C
Accuracy	±0.5 °C
Resolution	0.1 °C
Connections	3 x 7/16" UNF
Display	LCD
Power Supply	Battery