Using The Product; Preparing For Measurement; Connecting Temperature Probe, Testo 552 And Accessories - TESTO 570 Instruction Manual

Tighten the valve actuator only hand-tight. Do not use any tools for
tightening, this could damage the thread.
Valve positioner tightened too tightly.
•
•
•
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Tighten the valve positioner only hand-tight. Do not use any tools
to tighten the valve positioner.
6

Using the product

6.1.

Preparing for measurement

6.1.1. Connecting temperature probe, Testo 552 and
accessories
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WARNING
WARNING
Damage to the PTFE seal (1).
Mechanical deformation of the valve piston (2) leading to the
PTFE seal (1) falling out.
Damage to the thread of the threaded spindle (3) and the valve
screw (4).
Broken valve knob (5).
Sensors must be connected before the measuring
instrument is switched on, so that they are recognised by
the instrument.
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